./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/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_7e5d227a-22bf-4382-be38-827dfc8c8f38/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/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_7e5d227a-22bf-4382-be38-827dfc8c8f38/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 0d7ece5c4a9a1765b3b43243827c3f464d1b8786fc999bf2c8e86adac4d3a79a --- 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 01:36:01,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:36:01,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:36:01,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:36:01,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:36:01,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:36:01,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:36:01,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:36:01,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:36:01,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:36:01,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:36:01,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:36:01,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:36:01,350 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:36:01,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:36:01,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:36:01,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:36:01,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:36:01,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:36:01,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:36:01,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:36:01,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:36:01,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:36:01,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:36:01,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:36:01,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:36:01,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:36:01,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:36:01,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:36:01,394 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:36:01,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:36:01,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:36:01,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:36:01,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:36:01,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:36:01,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:36:01,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:36:01,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:36:01,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:36:01,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:36:01,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:36:01,407 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 01:36:01,451 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:36:01,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:36:01,452 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:36:01,453 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:36:01,454 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:36:01,454 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:36:01,454 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:36:01,455 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:36:01,455 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:36:01,455 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:36:01,456 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:36:01,457 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:36:01,457 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:36:01,457 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:36:01,457 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:36:01,458 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:36:01,458 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:36:01,458 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:36:01,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:36:01,459 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:36:01,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:36:01,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:36:01,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:36:01,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:36:01,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:36:01,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:36:01,461 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:36:01,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:36:01,462 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:36:01,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:36:01,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:36:01,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:36:01,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:36:01,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:36:01,464 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:36:01,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:36:01,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:36:01,465 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:36:01,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:36:01,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:36:01,466 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:36:01,466 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d7ece5c4a9a1765b3b43243827c3f464d1b8786fc999bf2c8e86adac4d3a79a [2022-11-22 01:36:01,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:36:01,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:36:01,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:36:01,868 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:36:01,869 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:36:01,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-11-22 01:36:05,064 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:36:05,583 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:36:05,584 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-11-22 01:36:05,617 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/bin/utaipan-g80aRyZoba/data/6fc23f530/2fe202327b0044d59a4cd3e9855e9bc4/FLAGb4febaa66 [2022-11-22 01:36:05,636 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/bin/utaipan-g80aRyZoba/data/6fc23f530/2fe202327b0044d59a4cd3e9855e9bc4 [2022-11-22 01:36:05,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:36:05,643 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:36:05,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:36:05,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:36:05,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:36:05,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:36:05" (1/1) ... [2022-11-22 01:36:05,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bc55951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:05, skipping insertion in model container [2022-11-22 01:36:05,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:36:05" (1/1) ... [2022-11-22 01:36:05,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:36:05,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:36:06,423 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33192,33205] [2022-11-22 01:36:06,515 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[47557,47570] [2022-11-22 01:36:06,569 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[54728,54741] [2022-11-22 01:36:06,586 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[58287,58300] [2022-11-22 01:36:06,603 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[61647,61660] [2022-11-22 01:36:06,665 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[76934,76947] [2022-11-22 01:36:06,697 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[84100,84113] [2022-11-22 01:36:06,713 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[87654,87667] [2022-11-22 01:36:06,728 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[91009,91022] [2022-11-22 01:36:06,778 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[95142,95155] [2022-11-22 01:36:06,796 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98563,98576] [2022-11-22 01:36:06,829 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[102117,102130] [2022-11-22 01:36:06,849 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[105472,105485] [2022-11-22 01:36:06,870 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[109226,109239] [2022-11-22 01:36:06,891 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[112596,112609] [2022-11-22 01:36:06,922 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[116131,116144] [2022-11-22 01:36:07,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:36:07,030 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:36:07,239 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33192,33205] [2022-11-22 01:36:07,286 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[47557,47570] [2022-11-22 01:36:07,311 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[54728,54741] [2022-11-22 01:36:07,325 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[58287,58300] [2022-11-22 01:36:07,336 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[61647,61660] [2022-11-22 01:36:07,391 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[76934,76947] [2022-11-22 01:36:07,420 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[84100,84113] [2022-11-22 01:36:07,431 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[87654,87667] [2022-11-22 01:36:07,442 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[91009,91022] [2022-11-22 01:36:07,457 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[95142,95155] [2022-11-22 01:36:07,466 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98563,98576] [2022-11-22 01:36:07,485 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[102117,102130] [2022-11-22 01:36:07,496 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[105472,105485] [2022-11-22 01:36:07,508 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[109226,109239] [2022-11-22 01:36:07,518 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[112596,112609] [2022-11-22 01:36:07,530 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_7e5d227a-22bf-4382-be38-827dfc8c8f38/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[116131,116144] [2022-11-22 01:36:07,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:36:07,582 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:36:07,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:07 WrapperNode [2022-11-22 01:36:07,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:36:07,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:36:07,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:36:07,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:36:07,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:07" (1/1) ... [2022-11-22 01:36:07,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:07" (1/1) ... [2022-11-22 01:36:07,768 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5420 [2022-11-22 01:36:07,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:36:07,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:36:07,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:36:07,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:36:07,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:07" (1/1) ... [2022-11-22 01:36:07,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:07" (1/1) ... [2022-11-22 01:36:07,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:07" (1/1) ... [2022-11-22 01:36:07,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:07" (1/1) ... [2022-11-22 01:36:07,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:07" (1/1) ... [2022-11-22 01:36:07,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:07" (1/1) ... [2022-11-22 01:36:07,864 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:07" (1/1) ... [2022-11-22 01:36:07,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:07" (1/1) ... [2022-11-22 01:36:07,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:36:07,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:36:07,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:36:07,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:36:07,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:07" (1/1) ... [2022-11-22 01:36:07,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:36:07,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:36:07,935 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:36:07,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:36:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:36:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:36:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:36:07,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:36:08,416 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:36:08,418 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:36:11,585 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:36:11,852 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:36:11,853 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:36:11,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:36:11 BoogieIcfgContainer [2022-11-22 01:36:11,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:36:11,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:36:11,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:36:11,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:36:11,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:36:05" (1/3) ... [2022-11-22 01:36:11,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7ed54b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:36:11, skipping insertion in model container [2022-11-22 01:36:11,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:07" (2/3) ... [2022-11-22 01:36:11,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7ed54b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:36:11, skipping insertion in model container [2022-11-22 01:36:11,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:36:11" (3/3) ... [2022-11-22 01:36:11,867 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-11-22 01:36:11,888 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:36:11,888 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-22 01:36:11,967 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:36:11,974 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;@fa4af1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:36:11,974 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-22 01:36:11,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 1086 states, 1069 states have (on average 1.8297474275023387) internal successors, (1956), 1085 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:12,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-22 01:36:12,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:12,010 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] [2022-11-22 01:36:12,011 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:12,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:12,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1232435330, now seen corresponding path program 1 times [2022-11-22 01:36:12,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:12,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158902022] [2022-11-22 01:36:12,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:12,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:12,674 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 01:36:12,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:12,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158902022] [2022-11-22 01:36:12,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158902022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:12,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:12,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:36:12,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554383828] [2022-11-22 01:36:12,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:12,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:36:12,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:12,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:36:12,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:36:12,737 INFO L87 Difference]: Start difference. First operand has 1086 states, 1069 states have (on average 1.8297474275023387) internal successors, (1956), 1085 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:14,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:14,646 INFO L93 Difference]: Finished difference Result 1752 states and 3051 transitions. [2022-11-22 01:36:14,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:36:14,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-11-22 01:36:14,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:14,683 INFO L225 Difference]: With dead ends: 1752 [2022-11-22 01:36:14,684 INFO L226 Difference]: Without dead ends: 1201 [2022-11-22 01:36:14,695 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 01:36:14,702 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 5455 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5455 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:14,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5455 Valid, 1130 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-22 01:36:14,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2022-11-22 01:36:14,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 1097. [2022-11-22 01:36:14,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1097 states, 1081 states have (on average 1.3367252543940795) internal successors, (1445), 1096 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:14,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1445 transitions. [2022-11-22 01:36:14,876 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1445 transitions. Word has length 71 [2022-11-22 01:36:14,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:14,877 INFO L495 AbstractCegarLoop]: Abstraction has 1097 states and 1445 transitions. [2022-11-22 01:36:14,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:14,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1445 transitions. [2022-11-22 01:36:14,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-22 01:36:14,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:14,885 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] [2022-11-22 01:36:14,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:36:14,886 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:14,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:14,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1527450296, now seen corresponding path program 1 times [2022-11-22 01:36:14,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:14,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547784402] [2022-11-22 01:36:14,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:14,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:15,252 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 01:36:15,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:15,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547784402] [2022-11-22 01:36:15,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547784402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:15,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:15,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:36:15,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720927036] [2022-11-22 01:36:15,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:15,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:36:15,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:15,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:36:15,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:36:15,261 INFO L87 Difference]: Start difference. First operand 1097 states and 1445 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:16,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:16,001 INFO L93 Difference]: Finished difference Result 1342 states and 1753 transitions. [2022-11-22 01:36:16,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:36:16,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-11-22 01:36:16,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:16,005 INFO L225 Difference]: With dead ends: 1342 [2022-11-22 01:36:16,005 INFO L226 Difference]: Without dead ends: 795 [2022-11-22 01:36:16,006 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 01:36:16,008 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 2258 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2258 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:16,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2258 Valid, 385 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:36:16,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2022-11-22 01:36:16,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 795. [2022-11-22 01:36:16,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 779 states have (on average 1.350449293966624) internal successors, (1052), 794 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:16,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1052 transitions. [2022-11-22 01:36:16,059 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1052 transitions. Word has length 71 [2022-11-22 01:36:16,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:16,060 INFO L495 AbstractCegarLoop]: Abstraction has 795 states and 1052 transitions. [2022-11-22 01:36:16,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:16,060 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1052 transitions. [2022-11-22 01:36:16,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-22 01:36:16,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:16,063 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] [2022-11-22 01:36:16,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:36:16,063 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:16,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:16,064 INFO L85 PathProgramCache]: Analyzing trace with hash 2115552032, now seen corresponding path program 1 times [2022-11-22 01:36:16,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:16,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732673071] [2022-11-22 01:36:16,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:16,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:16,277 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 01:36:16,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:16,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732673071] [2022-11-22 01:36:16,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732673071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:16,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:16,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:36:16,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101183296] [2022-11-22 01:36:16,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:16,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:36:16,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:16,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:36:16,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:36:16,280 INFO L87 Difference]: Start difference. First operand 795 states and 1052 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:16,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:16,763 INFO L93 Difference]: Finished difference Result 959 states and 1244 transitions. [2022-11-22 01:36:16,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:36:16,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-11-22 01:36:16,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:16,768 INFO L225 Difference]: With dead ends: 959 [2022-11-22 01:36:16,768 INFO L226 Difference]: Without dead ends: 565 [2022-11-22 01:36:16,769 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 01:36:16,773 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 1524 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:16,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 299 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:36:16,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2022-11-22 01:36:16,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 565. [2022-11-22 01:36:16,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 549 states have (on average 1.349726775956284) internal successors, (741), 564 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:16,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 741 transitions. [2022-11-22 01:36:16,848 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 741 transitions. Word has length 71 [2022-11-22 01:36:16,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:16,848 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 741 transitions. [2022-11-22 01:36:16,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:16,850 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 741 transitions. [2022-11-22 01:36:16,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-22 01:36:16,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:16,854 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] [2022-11-22 01:36:16,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:36:16,854 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:16,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:16,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1156366953, now seen corresponding path program 1 times [2022-11-22 01:36:16,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:16,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218022720] [2022-11-22 01:36:16,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:16,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:17,100 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 01:36:17,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:17,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218022720] [2022-11-22 01:36:17,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218022720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:17,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:17,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:36:17,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592708278] [2022-11-22 01:36:17,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:17,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:36:17,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:17,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:36:17,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:36:17,111 INFO L87 Difference]: Start difference. First operand 565 states and 741 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:17,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:17,471 INFO L93 Difference]: Finished difference Result 812 states and 1065 transitions. [2022-11-22 01:36:17,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:36:17,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-11-22 01:36:17,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:17,475 INFO L225 Difference]: With dead ends: 812 [2022-11-22 01:36:17,475 INFO L226 Difference]: Without dead ends: 504 [2022-11-22 01:36:17,476 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 01:36:17,479 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 1368 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:17,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1368 Valid, 276 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:36:17,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2022-11-22 01:36:17,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2022-11-22 01:36:17,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 488 states have (on average 1.360655737704918) internal successors, (664), 503 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:17,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 664 transitions. [2022-11-22 01:36:17,526 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 664 transitions. Word has length 72 [2022-11-22 01:36:17,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:17,528 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 664 transitions. [2022-11-22 01:36:17,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:17,528 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 664 transitions. [2022-11-22 01:36:17,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-22 01:36:17,530 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:17,530 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] [2022-11-22 01:36:17,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:36:17,536 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:17,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:17,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1186891401, now seen corresponding path program 1 times [2022-11-22 01:36:17,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:17,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928068541] [2022-11-22 01:36:17,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:17,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:17,717 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 01:36:17,717 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:17,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928068541] [2022-11-22 01:36:17,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928068541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:17,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:17,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:36:17,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373679665] [2022-11-22 01:36:17,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:17,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:36:17,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:17,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:36:17,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:36:17,727 INFO L87 Difference]: Start difference. First operand 504 states and 664 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:18,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:18,131 INFO L93 Difference]: Finished difference Result 732 states and 960 transitions. [2022-11-22 01:36:18,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:36:18,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-11-22 01:36:18,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:18,136 INFO L225 Difference]: With dead ends: 732 [2022-11-22 01:36:18,136 INFO L226 Difference]: Without dead ends: 496 [2022-11-22 01:36:18,137 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 01:36:18,137 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1291 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1291 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:18,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1291 Valid, 251 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:36:18,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-11-22 01:36:18,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2022-11-22 01:36:18,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 480 states have (on average 1.3604166666666666) internal successors, (653), 495 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:18,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 653 transitions. [2022-11-22 01:36:18,201 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 653 transitions. Word has length 73 [2022-11-22 01:36:18,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:18,202 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 653 transitions. [2022-11-22 01:36:18,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:18,202 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 653 transitions. [2022-11-22 01:36:18,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-22 01:36:18,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:18,204 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] [2022-11-22 01:36:18,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:36:18,204 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:18,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:18,205 INFO L85 PathProgramCache]: Analyzing trace with hash -117023922, now seen corresponding path program 1 times [2022-11-22 01:36:18,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:18,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829937101] [2022-11-22 01:36:18,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:18,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:18,696 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 01:36:18,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:18,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829937101] [2022-11-22 01:36:18,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829937101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:18,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:18,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 01:36:18,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991271439] [2022-11-22 01:36:18,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:18,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 01:36:18,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:18,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 01:36:18,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:36:18,699 INFO L87 Difference]: Start difference. First operand 496 states and 653 transitions. Second operand has 10 states, 10 states have (on average 7.4) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:20,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:20,118 INFO L93 Difference]: Finished difference Result 1057 states and 1400 transitions. [2022-11-22 01:36:20,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:36:20,119 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-11-22 01:36:20,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:20,123 INFO L225 Difference]: With dead ends: 1057 [2022-11-22 01:36:20,123 INFO L226 Difference]: Without dead ends: 933 [2022-11-22 01:36:20,124 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 01:36:20,125 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 2122 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2122 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:20,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2122 Valid, 1453 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 01:36:20,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2022-11-22 01:36:20,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 496. [2022-11-22 01:36:20,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 480 states have (on average 1.35625) internal successors, (651), 495 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:20,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 651 transitions. [2022-11-22 01:36:20,198 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 651 transitions. Word has length 74 [2022-11-22 01:36:20,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:20,199 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 651 transitions. [2022-11-22 01:36:20,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 9 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:20,199 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 651 transitions. [2022-11-22 01:36:20,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-22 01:36:20,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:20,201 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] [2022-11-22 01:36:20,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:36:20,201 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:20,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:20,202 INFO L85 PathProgramCache]: Analyzing trace with hash 782905456, now seen corresponding path program 1 times [2022-11-22 01:36:20,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:20,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124935102] [2022-11-22 01:36:20,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:20,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:20,643 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 01:36:20,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:20,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124935102] [2022-11-22 01:36:20,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124935102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:20,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:20,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:36:20,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889829335] [2022-11-22 01:36:20,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:20,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:36:20,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:20,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:36:20,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:36:20,646 INFO L87 Difference]: Start difference. First operand 496 states and 651 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:21,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:21,536 INFO L93 Difference]: Finished difference Result 906 states and 1148 transitions. [2022-11-22 01:36:21,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:36:21,537 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-11-22 01:36:21,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:21,539 INFO L225 Difference]: With dead ends: 906 [2022-11-22 01:36:21,540 INFO L226 Difference]: Without dead ends: 678 [2022-11-22 01:36:21,540 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 01:36:21,541 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 2082 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2082 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:21,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2082 Valid, 587 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:36:21,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-11-22 01:36:21,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 496. [2022-11-22 01:36:21,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 480 states have (on average 1.3541666666666667) internal successors, (650), 495 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:21,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 650 transitions. [2022-11-22 01:36:21,616 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 650 transitions. Word has length 74 [2022-11-22 01:36:21,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:21,617 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 650 transitions. [2022-11-22 01:36:21,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:21,617 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 650 transitions. [2022-11-22 01:36:21,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-22 01:36:21,619 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:21,619 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] [2022-11-22 01:36:21,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:36:21,620 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:21,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:21,620 INFO L85 PathProgramCache]: Analyzing trace with hash 98797326, now seen corresponding path program 1 times [2022-11-22 01:36:21,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:21,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689774031] [2022-11-22 01:36:21,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:21,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:22,045 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 01:36:22,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:22,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689774031] [2022-11-22 01:36:22,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689774031] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:22,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:22,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:36:22,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877163304] [2022-11-22 01:36:22,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:22,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:36:22,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:22,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:36:22,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:36:22,048 INFO L87 Difference]: Start difference. First operand 496 states and 650 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:23,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:23,431 INFO L93 Difference]: Finished difference Result 1046 states and 1382 transitions. [2022-11-22 01:36:23,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:36:23,432 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-11-22 01:36:23,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:23,436 INFO L225 Difference]: With dead ends: 1046 [2022-11-22 01:36:23,437 INFO L226 Difference]: Without dead ends: 941 [2022-11-22 01:36:23,438 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 01:36:23,438 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 2027 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2027 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:23,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2027 Valid, 1211 Invalid, 1080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:36:23,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2022-11-22 01:36:23,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 496. [2022-11-22 01:36:23,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 480 states have (on average 1.3520833333333333) internal successors, (649), 495 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:23,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 649 transitions. [2022-11-22 01:36:23,518 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 649 transitions. Word has length 74 [2022-11-22 01:36:23,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:23,518 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 649 transitions. [2022-11-22 01:36:23,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:23,519 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 649 transitions. [2022-11-22 01:36:23,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-22 01:36:23,520 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:23,520 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] [2022-11-22 01:36:23,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:36:23,521 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:23,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:23,521 INFO L85 PathProgramCache]: Analyzing trace with hash -2064648218, now seen corresponding path program 1 times [2022-11-22 01:36:23,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:23,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822845440] [2022-11-22 01:36:23,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:23,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:23,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:23,909 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 01:36:23,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:23,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822845440] [2022-11-22 01:36:23,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822845440] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:23,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:23,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:36:23,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969922099] [2022-11-22 01:36:23,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:23,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:36:23,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:23,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:36:23,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:36:23,912 INFO L87 Difference]: Start difference. First operand 496 states and 649 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:25,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:25,118 INFO L93 Difference]: Finished difference Result 728 states and 956 transitions. [2022-11-22 01:36:25,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:36:25,119 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-11-22 01:36:25,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:25,123 INFO L225 Difference]: With dead ends: 728 [2022-11-22 01:36:25,123 INFO L226 Difference]: Without dead ends: 584 [2022-11-22 01:36:25,124 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 01:36:25,127 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 1071 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 1164 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 1559 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:25,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 1559 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1164 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:36:25,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-11-22 01:36:25,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 496. [2022-11-22 01:36:25,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 480 states have (on average 1.35) internal successors, (648), 495 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:25,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 648 transitions. [2022-11-22 01:36:25,208 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 648 transitions. Word has length 74 [2022-11-22 01:36:25,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:25,208 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 648 transitions. [2022-11-22 01:36:25,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:25,209 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 648 transitions. [2022-11-22 01:36:25,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-22 01:36:25,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:25,210 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] [2022-11-22 01:36:25,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:36:25,211 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:25,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:25,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1716231595, now seen corresponding path program 1 times [2022-11-22 01:36:25,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:25,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923056814] [2022-11-22 01:36:25,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:25,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:25,781 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 01:36:25,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:25,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923056814] [2022-11-22 01:36:25,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923056814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:25,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:25,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:36:25,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364879739] [2022-11-22 01:36:25,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:25,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:36:25,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:25,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:36:25,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:36:25,784 INFO L87 Difference]: Start difference. First operand 496 states and 648 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:27,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:27,371 INFO L93 Difference]: Finished difference Result 1015 states and 1329 transitions. [2022-11-22 01:36:27,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:36:27,372 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-22 01:36:27,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:27,376 INFO L225 Difference]: With dead ends: 1015 [2022-11-22 01:36:27,376 INFO L226 Difference]: Without dead ends: 917 [2022-11-22 01:36:27,377 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 01:36:27,377 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 1534 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:27,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 1727 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 01:36:27,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-11-22 01:36:27,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 496. [2022-11-22 01:36:27,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 480 states have (on average 1.3458333333333334) internal successors, (646), 495 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:27,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 646 transitions. [2022-11-22 01:36:27,470 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 646 transitions. Word has length 76 [2022-11-22 01:36:27,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:27,471 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 646 transitions. [2022-11-22 01:36:27,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:27,471 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 646 transitions. [2022-11-22 01:36:27,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-22 01:36:27,473 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:27,473 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] [2022-11-22 01:36:27,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:36:27,473 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:27,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:27,474 INFO L85 PathProgramCache]: Analyzing trace with hash -694606913, now seen corresponding path program 1 times [2022-11-22 01:36:27,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:27,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676330930] [2022-11-22 01:36:27,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:27,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:27,847 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 01:36:27,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:27,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676330930] [2022-11-22 01:36:27,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676330930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:27,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:27,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:36:27,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753933827] [2022-11-22 01:36:27,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:27,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:36:27,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:27,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:36:27,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:36:27,850 INFO L87 Difference]: Start difference. First operand 496 states and 646 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:28,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:28,873 INFO L93 Difference]: Finished difference Result 794 states and 1041 transitions. [2022-11-22 01:36:28,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 01:36:28,874 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-22 01:36:28,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:28,877 INFO L225 Difference]: With dead ends: 794 [2022-11-22 01:36:28,877 INFO L226 Difference]: Without dead ends: 584 [2022-11-22 01:36:28,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:36:28,879 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 1041 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:28,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 1140 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:36:28,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-11-22 01:36:28,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 496. [2022-11-22 01:36:28,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 480 states have (on average 1.3416666666666666) internal successors, (644), 495 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:28,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 644 transitions. [2022-11-22 01:36:28,979 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 644 transitions. Word has length 76 [2022-11-22 01:36:28,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:28,980 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 644 transitions. [2022-11-22 01:36:28,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:28,980 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 644 transitions. [2022-11-22 01:36:28,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-22 01:36:28,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:28,983 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] [2022-11-22 01:36:28,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 01:36:28,984 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:28,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:28,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1449671967, now seen corresponding path program 1 times [2022-11-22 01:36:28,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:28,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679490178] [2022-11-22 01:36:28,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:28,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:29,356 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 01:36:29,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:29,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679490178] [2022-11-22 01:36:29,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679490178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:29,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:29,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:36:29,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982158579] [2022-11-22 01:36:29,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:29,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:36:29,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:29,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:36:29,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:36:29,359 INFO L87 Difference]: Start difference. First operand 496 states and 644 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:30,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:30,751 INFO L93 Difference]: Finished difference Result 1055 states and 1385 transitions. [2022-11-22 01:36:30,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:36:30,752 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-22 01:36:30,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:30,756 INFO L225 Difference]: With dead ends: 1055 [2022-11-22 01:36:30,756 INFO L226 Difference]: Without dead ends: 941 [2022-11-22 01:36:30,757 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 01:36:30,758 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 1167 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:30,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 1610 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:36:30,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2022-11-22 01:36:30,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 496. [2022-11-22 01:36:30,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 480 states have (on average 1.3395833333333333) internal successors, (643), 495 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:30,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 643 transitions. [2022-11-22 01:36:30,900 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 643 transitions. Word has length 76 [2022-11-22 01:36:30,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:30,900 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 643 transitions. [2022-11-22 01:36:30,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:30,901 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 643 transitions. [2022-11-22 01:36:30,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-22 01:36:30,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:30,903 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] [2022-11-22 01:36:30,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 01:36:30,903 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:30,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:30,904 INFO L85 PathProgramCache]: Analyzing trace with hash -263935870, now seen corresponding path program 1 times [2022-11-22 01:36:30,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:30,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978889520] [2022-11-22 01:36:30,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:30,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:31,241 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 01:36:31,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:31,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978889520] [2022-11-22 01:36:31,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978889520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:31,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:31,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:36:31,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965721514] [2022-11-22 01:36:31,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:31,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:36:31,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:31,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:36:31,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:36:31,245 INFO L87 Difference]: Start difference. First operand 496 states and 643 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:32,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:32,780 INFO L93 Difference]: Finished difference Result 1009 states and 1316 transitions. [2022-11-22 01:36:32,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:36:32,781 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-22 01:36:32,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:32,784 INFO L225 Difference]: With dead ends: 1009 [2022-11-22 01:36:32,785 INFO L226 Difference]: Without dead ends: 917 [2022-11-22 01:36:32,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:36:32,786 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 1084 mSDsluCounter, 1436 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 1846 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:32,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 1846 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 01:36:32,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-11-22 01:36:32,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 496. [2022-11-22 01:36:32,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 480 states have (on average 1.3375) internal successors, (642), 495 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:32,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 642 transitions. [2022-11-22 01:36:32,898 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 642 transitions. Word has length 76 [2022-11-22 01:36:32,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:32,898 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 642 transitions. [2022-11-22 01:36:32,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:32,899 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 642 transitions. [2022-11-22 01:36:32,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-22 01:36:32,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:32,900 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] [2022-11-22 01:36:32,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 01:36:32,901 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:32,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:32,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1457950665, now seen corresponding path program 1 times [2022-11-22 01:36:32,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:32,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462481153] [2022-11-22 01:36:32,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:32,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:33,210 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 01:36:33,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:33,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462481153] [2022-11-22 01:36:33,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462481153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:33,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:33,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:36:33,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600652511] [2022-11-22 01:36:33,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:33,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:36:33,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:33,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:36:33,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:36:33,213 INFO L87 Difference]: Start difference. First operand 496 states and 642 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:34,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:34,678 INFO L93 Difference]: Finished difference Result 1009 states and 1314 transitions. [2022-11-22 01:36:34,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:36:34,678 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-22 01:36:34,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:34,682 INFO L225 Difference]: With dead ends: 1009 [2022-11-22 01:36:34,682 INFO L226 Difference]: Without dead ends: 917 [2022-11-22 01:36:34,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:36:34,683 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 1043 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:34,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 1683 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 01:36:34,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-11-22 01:36:34,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 496. [2022-11-22 01:36:34,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 480 states have (on average 1.3354166666666667) internal successors, (641), 495 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:34,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 641 transitions. [2022-11-22 01:36:34,789 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 641 transitions. Word has length 76 [2022-11-22 01:36:34,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:34,790 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 641 transitions. [2022-11-22 01:36:34,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:34,790 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 641 transitions. [2022-11-22 01:36:34,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-22 01:36:34,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:34,792 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] [2022-11-22 01:36:34,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 01:36:34,793 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:34,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:34,793 INFO L85 PathProgramCache]: Analyzing trace with hash -995702185, now seen corresponding path program 1 times [2022-11-22 01:36:34,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:34,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615595894] [2022-11-22 01:36:34,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:34,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:35,128 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 01:36:35,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:35,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615595894] [2022-11-22 01:36:35,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615595894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:35,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:35,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:36:35,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998384484] [2022-11-22 01:36:35,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:35,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:36:35,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:35,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:36:35,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:36:35,131 INFO L87 Difference]: Start difference. First operand 496 states and 641 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:36,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:36,454 INFO L93 Difference]: Finished difference Result 1005 states and 1309 transitions. [2022-11-22 01:36:36,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:36:36,454 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-22 01:36:36,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:36,458 INFO L225 Difference]: With dead ends: 1005 [2022-11-22 01:36:36,458 INFO L226 Difference]: Without dead ends: 917 [2022-11-22 01:36:36,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:36:36,460 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 1543 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:36,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1543 Valid, 1514 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:36:36,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-11-22 01:36:36,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 496. [2022-11-22 01:36:36,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 480 states have (on average 1.3333333333333333) internal successors, (640), 495 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:36,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 640 transitions. [2022-11-22 01:36:36,565 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 640 transitions. Word has length 76 [2022-11-22 01:36:36,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:36,565 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 640 transitions. [2022-11-22 01:36:36,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:36,566 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 640 transitions. [2022-11-22 01:36:36,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-22 01:36:36,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:36,568 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] [2022-11-22 01:36:36,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 01:36:36,568 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:36,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:36,569 INFO L85 PathProgramCache]: Analyzing trace with hash 513544580, now seen corresponding path program 1 times [2022-11-22 01:36:36,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:36,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37212129] [2022-11-22 01:36:36,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:36,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:36,901 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 01:36:36,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:36,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37212129] [2022-11-22 01:36:36,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37212129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:36,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:36,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:36:36,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210617315] [2022-11-22 01:36:36,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:36,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:36:36,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:36,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:36:36,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:36:36,907 INFO L87 Difference]: Start difference. First operand 496 states and 640 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:38,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:38,355 INFO L93 Difference]: Finished difference Result 1021 states and 1327 transitions. [2022-11-22 01:36:38,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:36:38,356 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-22 01:36:38,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:38,359 INFO L225 Difference]: With dead ends: 1021 [2022-11-22 01:36:38,359 INFO L226 Difference]: Without dead ends: 917 [2022-11-22 01:36:38,360 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 01:36:38,360 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 1633 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1633 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:38,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1633 Valid, 1772 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:36:38,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-11-22 01:36:38,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 496. [2022-11-22 01:36:38,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 480 states have (on average 1.3291666666666666) internal successors, (638), 495 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:38,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 638 transitions. [2022-11-22 01:36:38,499 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 638 transitions. Word has length 78 [2022-11-22 01:36:38,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:38,499 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 638 transitions. [2022-11-22 01:36:38,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:38,500 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 638 transitions. [2022-11-22 01:36:38,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-22 01:36:38,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:38,502 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] [2022-11-22 01:36:38,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 01:36:38,502 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:38,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:38,503 INFO L85 PathProgramCache]: Analyzing trace with hash 2002078059, now seen corresponding path program 1 times [2022-11-22 01:36:38,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:38,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782819154] [2022-11-22 01:36:38,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:38,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:38,908 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 01:36:38,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:38,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782819154] [2022-11-22 01:36:38,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782819154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:38,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:38,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:36:38,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511345981] [2022-11-22 01:36:38,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:38,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:36:38,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:38,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:36:38,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:36:38,913 INFO L87 Difference]: Start difference. First operand 496 states and 638 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:40,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:40,497 INFO L93 Difference]: Finished difference Result 981 states and 1263 transitions. [2022-11-22 01:36:40,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:36:40,498 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-22 01:36:40,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:40,501 INFO L225 Difference]: With dead ends: 981 [2022-11-22 01:36:40,502 INFO L226 Difference]: Without dead ends: 893 [2022-11-22 01:36:40,503 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 01:36:40,503 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 1532 mSDsluCounter, 1298 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1532 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:40,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1532 Valid, 1651 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 01:36:40,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2022-11-22 01:36:40,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 496. [2022-11-22 01:36:40,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 480 states have (on average 1.325) internal successors, (636), 495 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:40,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 636 transitions. [2022-11-22 01:36:40,650 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 636 transitions. Word has length 78 [2022-11-22 01:36:40,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:40,651 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 636 transitions. [2022-11-22 01:36:40,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:40,651 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 636 transitions. [2022-11-22 01:36:40,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-22 01:36:40,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:40,653 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] [2022-11-22 01:36:40,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-22 01:36:40,653 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:40,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:40,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1513420061, now seen corresponding path program 1 times [2022-11-22 01:36:40,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:40,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517422456] [2022-11-22 01:36:40,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:40,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:40,960 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 01:36:40,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:40,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517422456] [2022-11-22 01:36:40,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517422456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:40,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:40,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:36:40,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920223020] [2022-11-22 01:36:40,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:40,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:36:40,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:40,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:36:40,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:36:40,963 INFO L87 Difference]: Start difference. First operand 496 states and 636 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:42,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:42,415 INFO L93 Difference]: Finished difference Result 1085 states and 1410 transitions. [2022-11-22 01:36:42,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:36:42,416 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-22 01:36:42,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:42,419 INFO L225 Difference]: With dead ends: 1085 [2022-11-22 01:36:42,419 INFO L226 Difference]: Without dead ends: 941 [2022-11-22 01:36:42,420 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 01:36:42,420 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 1587 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1587 SdHoareTripleChecker+Valid, 1640 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:42,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1587 Valid, 1640 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:36:42,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2022-11-22 01:36:42,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 496. [2022-11-22 01:36:42,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 480 states have (on average 1.3208333333333333) internal successors, (634), 495 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 01:36:42,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 634 transitions. [2022-11-22 01:36:42,550 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 634 transitions. Word has length 78 [2022-11-22 01:36:42,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:42,550 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 634 transitions. [2022-11-22 01:36:42,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:42,551 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 634 transitions. [2022-11-22 01:36:42,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-22 01:36:42,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:42,552 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] [2022-11-22 01:36:42,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-22 01:36:42,553 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:42,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:42,553 INFO L85 PathProgramCache]: Analyzing trace with hash -675860338, now seen corresponding path program 1 times [2022-11-22 01:36:42,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:42,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597440179] [2022-11-22 01:36:42,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:42,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:43,135 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 01:36:43,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:43,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597440179] [2022-11-22 01:36:43,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597440179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:43,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:43,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:36:43,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716634573] [2022-11-22 01:36:43,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:43,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:36:43,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:43,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:36:43,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:36:43,137 INFO L87 Difference]: Start difference. First operand 496 states and 634 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:46,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:46,344 INFO L93 Difference]: Finished difference Result 1412 states and 1842 transitions. [2022-11-22 01:36:46,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 01:36:46,345 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-22 01:36:46,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:46,353 INFO L225 Difference]: With dead ends: 1412 [2022-11-22 01:36:46,353 INFO L226 Difference]: Without dead ends: 1395 [2022-11-22 01:36:46,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 01:36:46,359 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 3064 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3064 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 1749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:46,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3064 Valid, 1790 Invalid, 1749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1622 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-22 01:36:46,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2022-11-22 01:36:46,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 504. [2022-11-22 01:36:46,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 488 states have (on average 1.3155737704918034) internal successors, (642), 503 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:46,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 642 transitions. [2022-11-22 01:36:46,550 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 642 transitions. Word has length 78 [2022-11-22 01:36:46,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:46,551 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 642 transitions. [2022-11-22 01:36:46,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:46,551 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 642 transitions. [2022-11-22 01:36:46,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-22 01:36:46,553 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:46,553 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] [2022-11-22 01:36:46,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-22 01:36:46,553 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:46,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:46,554 INFO L85 PathProgramCache]: Analyzing trace with hash 812673141, now seen corresponding path program 1 times [2022-11-22 01:36:46,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:46,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995118770] [2022-11-22 01:36:46,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:46,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:46,947 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 01:36:46,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:46,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995118770] [2022-11-22 01:36:46,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995118770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:46,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:46,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:36:46,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844270638] [2022-11-22 01:36:46,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:46,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:36:46,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:46,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:36:46,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:36:46,950 INFO L87 Difference]: Start difference. First operand 504 states and 642 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:48,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:48,573 INFO L93 Difference]: Finished difference Result 906 states and 1154 transitions. [2022-11-22 01:36:48,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:36:48,574 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-22 01:36:48,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:48,585 INFO L225 Difference]: With dead ends: 906 [2022-11-22 01:36:48,585 INFO L226 Difference]: Without dead ends: 901 [2022-11-22 01:36:48,586 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 01:36:48,586 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 1524 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:48,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1652 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:36:48,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2022-11-22 01:36:48,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 504. [2022-11-22 01:36:48,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 488 states have (on average 1.3114754098360655) internal successors, (640), 503 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:48,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 640 transitions. [2022-11-22 01:36:48,711 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 640 transitions. Word has length 78 [2022-11-22 01:36:48,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:48,712 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 640 transitions. [2022-11-22 01:36:48,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:48,712 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 640 transitions. [2022-11-22 01:36:48,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-22 01:36:48,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:48,714 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] [2022-11-22 01:36:48,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-22 01:36:48,714 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:48,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:48,715 INFO L85 PathProgramCache]: Analyzing trace with hash 406757360, now seen corresponding path program 1 times [2022-11-22 01:36:48,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:48,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94669493] [2022-11-22 01:36:48,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:48,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:48,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:49,258 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 01:36:49,258 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:49,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94669493] [2022-11-22 01:36:49,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94669493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:49,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:49,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:36:49,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853360844] [2022-11-22 01:36:49,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:49,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:36:49,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:49,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:36:49,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:36:49,260 INFO L87 Difference]: Start difference. First operand 504 states and 640 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:52,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:52,412 INFO L93 Difference]: Finished difference Result 1324 states and 1715 transitions. [2022-11-22 01:36:52,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 01:36:52,413 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-22 01:36:52,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:52,417 INFO L225 Difference]: With dead ends: 1324 [2022-11-22 01:36:52,417 INFO L226 Difference]: Without dead ends: 1319 [2022-11-22 01:36:52,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 01:36:52,419 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 3241 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 1647 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3241 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 1787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:52,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3241 Valid, 1763 Invalid, 1787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1647 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-22 01:36:52,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2022-11-22 01:36:52,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 512. [2022-11-22 01:36:52,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 496 states have (on average 1.3064516129032258) internal successors, (648), 511 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:52,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 648 transitions. [2022-11-22 01:36:52,582 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 648 transitions. Word has length 78 [2022-11-22 01:36:52,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:52,583 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 648 transitions. [2022-11-22 01:36:52,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:52,583 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 648 transitions. [2022-11-22 01:36:52,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-22 01:36:52,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:52,586 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] [2022-11-22 01:36:52,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-22 01:36:52,586 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:52,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:52,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1340403830, now seen corresponding path program 1 times [2022-11-22 01:36:52,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:52,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170359300] [2022-11-22 01:36:52,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:52,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:52,887 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 01:36:52,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:52,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170359300] [2022-11-22 01:36:52,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170359300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:52,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:52,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:36:52,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423090151] [2022-11-22 01:36:52,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:52,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:36:52,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:52,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:36:52,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:36:52,889 INFO L87 Difference]: Start difference. First operand 512 states and 648 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:54,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:54,438 INFO L93 Difference]: Finished difference Result 985 states and 1258 transitions. [2022-11-22 01:36:54,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:36:54,439 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-22 01:36:54,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:54,443 INFO L225 Difference]: With dead ends: 985 [2022-11-22 01:36:54,443 INFO L226 Difference]: Without dead ends: 901 [2022-11-22 01:36:54,444 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 01:36:54,445 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 1528 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:54,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1528 Valid, 1617 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:36:54,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2022-11-22 01:36:54,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 512. [2022-11-22 01:36:54,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 496 states have (on average 1.3024193548387097) internal successors, (646), 511 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:54,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 646 transitions. [2022-11-22 01:36:54,689 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 646 transitions. Word has length 78 [2022-11-22 01:36:54,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:54,690 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 646 transitions. [2022-11-22 01:36:54,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:54,690 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 646 transitions. [2022-11-22 01:36:54,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-22 01:36:54,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:54,692 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] [2022-11-22 01:36:54,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-22 01:36:54,692 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:54,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:54,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1562286502, now seen corresponding path program 1 times [2022-11-22 01:36:54,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:54,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759240104] [2022-11-22 01:36:54,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:54,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:55,016 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 01:36:55,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:55,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759240104] [2022-11-22 01:36:55,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759240104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:55,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:55,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:36:55,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946551195] [2022-11-22 01:36:55,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:55,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:36:55,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:55,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:36:55,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:36:55,019 INFO L87 Difference]: Start difference. First operand 512 states and 646 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:56,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:56,815 INFO L93 Difference]: Finished difference Result 986 states and 1257 transitions. [2022-11-22 01:36:56,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:36:56,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-22 01:36:56,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:56,817 INFO L225 Difference]: With dead ends: 986 [2022-11-22 01:36:56,818 INFO L226 Difference]: Without dead ends: 901 [2022-11-22 01:36:56,818 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 01:36:56,819 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 1518 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:56,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1637 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:36:56,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2022-11-22 01:36:57,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 512. [2022-11-22 01:36:57,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 496 states have (on average 1.3004032258064515) internal successors, (645), 511 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:57,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 645 transitions. [2022-11-22 01:36:57,021 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 645 transitions. Word has length 78 [2022-11-22 01:36:57,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:57,021 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 645 transitions. [2022-11-22 01:36:57,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:57,021 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 645 transitions. [2022-11-22 01:36:57,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-22 01:36:57,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:57,022 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] [2022-11-22 01:36:57,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-22 01:36:57,023 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:36:57,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:57,024 INFO L85 PathProgramCache]: Analyzing trace with hash 978066431, now seen corresponding path program 1 times [2022-11-22 01:36:57,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:57,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002443535] [2022-11-22 01:36:57,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:57,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:57,524 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 01:36:57,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:57,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002443535] [2022-11-22 01:36:57,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002443535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:36:57,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:36:57,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:36:57,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501321818] [2022-11-22 01:36:57,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:36:57,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:36:57,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:57,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:36:57,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:36:57,527 INFO L87 Difference]: Start difference. First operand 512 states and 645 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:00,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:00,880 INFO L93 Difference]: Finished difference Result 1492 states and 1938 transitions. [2022-11-22 01:37:00,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 01:37:00,880 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-22 01:37:00,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:00,887 INFO L225 Difference]: With dead ends: 1492 [2022-11-22 01:37:00,887 INFO L226 Difference]: Without dead ends: 1395 [2022-11-22 01:37:00,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 01:37:00,888 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 3078 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 1917 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3078 SdHoareTripleChecker+Valid, 2137 SdHoareTripleChecker+Invalid, 2047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:00,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3078 Valid, 2137 Invalid, 2047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1917 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-22 01:37:00,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2022-11-22 01:37:01,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 516. [2022-11-22 01:37:01,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 500 states have (on average 1.298) internal successors, (649), 515 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:01,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 649 transitions. [2022-11-22 01:37:01,096 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 649 transitions. Word has length 78 [2022-11-22 01:37:01,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:01,097 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 649 transitions. [2022-11-22 01:37:01,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:01,097 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 649 transitions. [2022-11-22 01:37:01,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-22 01:37:01,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:01,098 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] [2022-11-22 01:37:01,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-22 01:37:01,098 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:37:01,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:01,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1364256377, now seen corresponding path program 1 times [2022-11-22 01:37:01,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:01,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106714296] [2022-11-22 01:37:01,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:01,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:01,382 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 01:37:01,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:01,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106714296] [2022-11-22 01:37:01,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106714296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:01,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:01,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:37:01,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760241255] [2022-11-22 01:37:01,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:01,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:37:01,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:01,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:37:01,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:37:01,385 INFO L87 Difference]: Start difference. First operand 516 states and 649 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:03,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:03,064 INFO L93 Difference]: Finished difference Result 990 states and 1260 transitions. [2022-11-22 01:37:03,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:37:03,064 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-22 01:37:03,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:03,067 INFO L225 Difference]: With dead ends: 990 [2022-11-22 01:37:03,067 INFO L226 Difference]: Without dead ends: 905 [2022-11-22 01:37:03,068 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 01:37:03,069 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 1174 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 1153 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:03,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1174 Valid, 1352 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1153 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:37:03,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2022-11-22 01:37:03,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 516. [2022-11-22 01:37:03,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 500 states have (on average 1.296) internal successors, (648), 515 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:03,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 648 transitions. [2022-11-22 01:37:03,303 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 648 transitions. Word has length 78 [2022-11-22 01:37:03,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:03,303 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 648 transitions. [2022-11-22 01:37:03,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:03,304 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 648 transitions. [2022-11-22 01:37:03,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-22 01:37:03,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:03,306 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] [2022-11-22 01:37:03,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-22 01:37:03,307 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:37:03,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:03,307 INFO L85 PathProgramCache]: Analyzing trace with hash 2113755607, now seen corresponding path program 1 times [2022-11-22 01:37:03,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:03,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419025661] [2022-11-22 01:37:03,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:03,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:03,637 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 01:37:03,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:03,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419025661] [2022-11-22 01:37:03,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419025661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:03,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:03,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:37:03,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061092460] [2022-11-22 01:37:03,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:03,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:37:03,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:03,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:37:03,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:37:03,641 INFO L87 Difference]: Start difference. First operand 516 states and 648 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:05,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:05,491 INFO L93 Difference]: Finished difference Result 987 states and 1255 transitions. [2022-11-22 01:37:05,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:37:05,491 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-22 01:37:05,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:05,495 INFO L225 Difference]: With dead ends: 987 [2022-11-22 01:37:05,495 INFO L226 Difference]: Without dead ends: 905 [2022-11-22 01:37:05,496 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 01:37:05,496 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 1519 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:05,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1612 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:37:05,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2022-11-22 01:37:05,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 516. [2022-11-22 01:37:05,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 500 states have (on average 1.294) internal successors, (647), 515 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:05,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 647 transitions. [2022-11-22 01:37:05,704 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 647 transitions. Word has length 78 [2022-11-22 01:37:05,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:05,704 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 647 transitions. [2022-11-22 01:37:05,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:05,705 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 647 transitions. [2022-11-22 01:37:05,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-22 01:37:05,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:05,706 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] [2022-11-22 01:37:05,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-22 01:37:05,706 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:37:05,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:05,707 INFO L85 PathProgramCache]: Analyzing trace with hash 390823278, now seen corresponding path program 1 times [2022-11-22 01:37:05,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:05,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601458993] [2022-11-22 01:37:05,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:05,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:05,991 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 01:37:05,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:05,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601458993] [2022-11-22 01:37:05,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601458993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:05,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:05,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:37:05,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416526030] [2022-11-22 01:37:05,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:05,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:37:05,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:05,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:37:05,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:37:05,997 INFO L87 Difference]: Start difference. First operand 516 states and 647 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:07,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:07,549 INFO L93 Difference]: Finished difference Result 910 states and 1148 transitions. [2022-11-22 01:37:07,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:37:07,550 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-22 01:37:07,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:07,554 INFO L225 Difference]: With dead ends: 910 [2022-11-22 01:37:07,555 INFO L226 Difference]: Without dead ends: 905 [2022-11-22 01:37:07,555 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 01:37:07,556 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 1169 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:07,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1169 Valid, 1354 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1140 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:37:07,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2022-11-22 01:37:07,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 516. [2022-11-22 01:37:07,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 500 states have (on average 1.292) internal successors, (646), 515 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:07,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 646 transitions. [2022-11-22 01:37:07,748 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 646 transitions. Word has length 78 [2022-11-22 01:37:07,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:07,749 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 646 transitions. [2022-11-22 01:37:07,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:07,749 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 646 transitions. [2022-11-22 01:37:07,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-22 01:37:07,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:07,751 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] [2022-11-22 01:37:07,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-22 01:37:07,751 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:37:07,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:07,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1188609875, now seen corresponding path program 1 times [2022-11-22 01:37:07,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:07,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111489211] [2022-11-22 01:37:07,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:07,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:08,063 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 01:37:08,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:08,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111489211] [2022-11-22 01:37:08,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111489211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:08,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:08,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:37:08,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069984802] [2022-11-22 01:37:08,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:08,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:37:08,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:08,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:37:08,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:37:08,066 INFO L87 Difference]: Start difference. First operand 516 states and 646 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:09,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:09,776 INFO L93 Difference]: Finished difference Result 987 states and 1252 transitions. [2022-11-22 01:37:09,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:37:09,776 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-22 01:37:09,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:09,781 INFO L225 Difference]: With dead ends: 987 [2022-11-22 01:37:09,782 INFO L226 Difference]: Without dead ends: 905 [2022-11-22 01:37:09,782 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 01:37:09,783 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 1511 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:09,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1693 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:37:09,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2022-11-22 01:37:09,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 516. [2022-11-22 01:37:09,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 500 states have (on average 1.29) internal successors, (645), 515 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:09,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 645 transitions. [2022-11-22 01:37:09,965 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 645 transitions. Word has length 78 [2022-11-22 01:37:09,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:09,965 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 645 transitions. [2022-11-22 01:37:09,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:09,965 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 645 transitions. [2022-11-22 01:37:09,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-22 01:37:09,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:09,966 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] [2022-11-22 01:37:09,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-22 01:37:09,967 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:37:09,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:09,967 INFO L85 PathProgramCache]: Analyzing trace with hash 848969234, now seen corresponding path program 1 times [2022-11-22 01:37:09,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:09,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598711344] [2022-11-22 01:37:09,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:09,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:10,244 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 01:37:10,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:10,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598711344] [2022-11-22 01:37:10,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598711344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:10,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:10,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:37:10,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885976312] [2022-11-22 01:37:10,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:10,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:37:10,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:10,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:37:10,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:37:10,247 INFO L87 Difference]: Start difference. First operand 516 states and 645 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:12,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:12,026 INFO L93 Difference]: Finished difference Result 987 states and 1251 transitions. [2022-11-22 01:37:12,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:37:12,027 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-22 01:37:12,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:12,031 INFO L225 Difference]: With dead ends: 987 [2022-11-22 01:37:12,031 INFO L226 Difference]: Without dead ends: 905 [2022-11-22 01:37:12,031 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 01:37:12,032 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 1716 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1716 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:12,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1716 Valid, 1352 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:37:12,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2022-11-22 01:37:12,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 516. [2022-11-22 01:37:12,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 500 states have (on average 1.288) internal successors, (644), 515 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:12,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 644 transitions. [2022-11-22 01:37:12,210 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 644 transitions. Word has length 78 [2022-11-22 01:37:12,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:12,211 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 644 transitions. [2022-11-22 01:37:12,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:12,211 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 644 transitions. [2022-11-22 01:37:12,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-22 01:37:12,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:12,213 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] [2022-11-22 01:37:12,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-22 01:37:12,213 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:37:12,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:12,214 INFO L85 PathProgramCache]: Analyzing trace with hash 2131483169, now seen corresponding path program 1 times [2022-11-22 01:37:12,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:12,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97305304] [2022-11-22 01:37:12,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:12,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:12,483 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 01:37:12,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:12,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97305304] [2022-11-22 01:37:12,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97305304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:12,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:12,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:37:12,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248515532] [2022-11-22 01:37:12,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:12,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:37:12,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:12,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:37:12,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:37:12,486 INFO L87 Difference]: Start difference. First operand 516 states and 644 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:14,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:14,133 INFO L93 Difference]: Finished difference Result 910 states and 1143 transitions. [2022-11-22 01:37:14,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:37:14,134 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-22 01:37:14,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:14,137 INFO L225 Difference]: With dead ends: 910 [2022-11-22 01:37:14,137 INFO L226 Difference]: Without dead ends: 905 [2022-11-22 01:37:14,138 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 01:37:14,139 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 1162 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:14,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 1362 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:37:14,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2022-11-22 01:37:14,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 508. [2022-11-22 01:37:14,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 492 states have (on average 1.2886178861788617) internal successors, (634), 507 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 01:37:14,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 634 transitions. [2022-11-22 01:37:14,319 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 634 transitions. Word has length 79 [2022-11-22 01:37:14,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:14,319 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 634 transitions. [2022-11-22 01:37:14,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:14,319 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 634 transitions. [2022-11-22 01:37:14,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-22 01:37:14,321 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:14,321 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] [2022-11-22 01:37:14,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-22 01:37:14,321 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:37:14,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:14,321 INFO L85 PathProgramCache]: Analyzing trace with hash -656117800, now seen corresponding path program 1 times [2022-11-22 01:37:14,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:14,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460479083] [2022-11-22 01:37:14,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:14,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:14,582 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 01:37:14,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:14,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460479083] [2022-11-22 01:37:14,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460479083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:14,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:14,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:37:14,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099060352] [2022-11-22 01:37:14,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:14,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:37:14,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:14,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:37:14,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:37:14,584 INFO L87 Difference]: Start difference. First operand 508 states and 634 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:16,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:16,294 INFO L93 Difference]: Finished difference Result 934 states and 1181 transitions. [2022-11-22 01:37:16,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:37:16,294 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-22 01:37:16,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:16,297 INFO L225 Difference]: With dead ends: 934 [2022-11-22 01:37:16,298 INFO L226 Difference]: Without dead ends: 917 [2022-11-22 01:37:16,298 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 01:37:16,299 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 1573 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1573 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:16,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1573 Valid, 1569 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:37:16,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-11-22 01:37:16,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 500. [2022-11-22 01:37:16,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 484 states have (on average 1.2892561983471074) internal successors, (624), 499 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:16,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 624 transitions. [2022-11-22 01:37:16,488 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 624 transitions. Word has length 79 [2022-11-22 01:37:16,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:16,488 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 624 transitions. [2022-11-22 01:37:16,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:16,488 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 624 transitions. [2022-11-22 01:37:16,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-22 01:37:16,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:16,489 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] [2022-11-22 01:37:16,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-22 01:37:16,490 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:37:16,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:16,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1464004193, now seen corresponding path program 1 times [2022-11-22 01:37:16,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:16,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705840317] [2022-11-22 01:37:16,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:16,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:16,747 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 01:37:16,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:16,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705840317] [2022-11-22 01:37:16,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705840317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:16,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:16,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:37:16,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169022241] [2022-11-22 01:37:16,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:16,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:37:16,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:16,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:37:16,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:37:16,751 INFO L87 Difference]: Start difference. First operand 500 states and 624 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:18,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:18,572 INFO L93 Difference]: Finished difference Result 1014 states and 1288 transitions. [2022-11-22 01:37:18,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:37:18,572 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-22 01:37:18,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:18,575 INFO L225 Difference]: With dead ends: 1014 [2022-11-22 01:37:18,575 INFO L226 Difference]: Without dead ends: 917 [2022-11-22 01:37:18,576 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 01:37:18,576 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 1526 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:18,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1621 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:37:18,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-11-22 01:37:18,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 496. [2022-11-22 01:37:18,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 480 states have (on average 1.2895833333333333) internal successors, (619), 495 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:18,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 619 transitions. [2022-11-22 01:37:18,775 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 619 transitions. Word has length 79 [2022-11-22 01:37:18,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:18,776 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 619 transitions. [2022-11-22 01:37:18,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:18,776 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 619 transitions. [2022-11-22 01:37:18,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-22 01:37:18,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:18,777 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] [2022-11-22 01:37:18,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-22 01:37:18,777 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:37:18,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:18,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1401129693, now seen corresponding path program 1 times [2022-11-22 01:37:18,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:18,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697156873] [2022-11-22 01:37:18,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:18,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:19,076 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 01:37:19,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:19,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697156873] [2022-11-22 01:37:19,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697156873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:19,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:19,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:37:19,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182987487] [2022-11-22 01:37:19,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:19,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:37:19,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:19,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:37:19,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:37:19,079 INFO L87 Difference]: Start difference. First operand 496 states and 619 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:20,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:20,810 INFO L93 Difference]: Finished difference Result 973 states and 1230 transitions. [2022-11-22 01:37:20,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:37:20,811 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-22 01:37:20,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:20,813 INFO L225 Difference]: With dead ends: 973 [2022-11-22 01:37:20,813 INFO L226 Difference]: Without dead ends: 892 [2022-11-22 01:37:20,814 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 01:37:20,814 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 1493 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:20,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1732 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:37:20,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2022-11-22 01:37:20,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 495. [2022-11-22 01:37:20,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 479 states have (on average 1.2881002087682671) internal successors, (617), 494 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:20,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 617 transitions. [2022-11-22 01:37:20,996 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 617 transitions. Word has length 79 [2022-11-22 01:37:20,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:20,996 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 617 transitions. [2022-11-22 01:37:20,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:20,996 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 617 transitions. [2022-11-22 01:37:20,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-22 01:37:20,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:20,997 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] [2022-11-22 01:37:20,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-22 01:37:20,998 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:37:20,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:20,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1269258616, now seen corresponding path program 1 times [2022-11-22 01:37:20,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:20,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712644037] [2022-11-22 01:37:20,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:20,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:21,767 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 01:37:21,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:21,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712644037] [2022-11-22 01:37:21,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712644037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:21,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:21,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-22 01:37:21,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774903940] [2022-11-22 01:37:21,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:21,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 01:37:21,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:21,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 01:37:21,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:37:21,769 INFO L87 Difference]: Start difference. First operand 495 states and 617 transitions. Second operand has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:25,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:25,831 INFO L93 Difference]: Finished difference Result 1896 states and 2425 transitions. [2022-11-22 01:37:25,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-22 01:37:25,831 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-22 01:37:25,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:25,834 INFO L225 Difference]: With dead ends: 1896 [2022-11-22 01:37:25,835 INFO L226 Difference]: Without dead ends: 1794 [2022-11-22 01:37:25,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-22 01:37:25,836 INFO L413 NwaCegarLoop]: 998 mSDtfsCounter, 1990 mSDsluCounter, 7076 mSDsCounter, 0 mSdLazyCounter, 1569 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1990 SdHoareTripleChecker+Valid, 8074 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:25,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1990 Valid, 8074 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1569 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-22 01:37:25,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2022-11-22 01:37:26,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 473. [2022-11-22 01:37:26,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 459 states have (on average 1.2788671023965141) internal successors, (587), 472 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:26,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 587 transitions. [2022-11-22 01:37:26,076 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 587 transitions. Word has length 80 [2022-11-22 01:37:26,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:26,076 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 587 transitions. [2022-11-22 01:37:26,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:26,076 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 587 transitions. [2022-11-22 01:37:26,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-22 01:37:26,077 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:26,077 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] [2022-11-22 01:37:26,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-22 01:37:26,077 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:37:26,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:26,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1637753759, now seen corresponding path program 1 times [2022-11-22 01:37:26,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:26,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425937072] [2022-11-22 01:37:26,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:26,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:26,706 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 01:37:26,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:26,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425937072] [2022-11-22 01:37:26,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425937072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:26,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:26,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 01:37:26,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933625884] [2022-11-22 01:37:26,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:26,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:37:26,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:26,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:37:26,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:37:26,709 INFO L87 Difference]: Start difference. First operand 473 states and 587 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:28,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:28,808 INFO L93 Difference]: Finished difference Result 792 states and 981 transitions. [2022-11-22 01:37:28,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:37:28,809 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-22 01:37:28,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:28,811 INFO L225 Difference]: With dead ends: 792 [2022-11-22 01:37:28,811 INFO L226 Difference]: Without dead ends: 706 [2022-11-22 01:37:28,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-22 01:37:28,812 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 1839 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1839 SdHoareTripleChecker+Valid, 2062 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:28,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1839 Valid, 2062 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1034 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:37:28,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2022-11-22 01:37:29,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 461. [2022-11-22 01:37:29,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 448 states have (on average 1.2723214285714286) internal successors, (570), 460 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:29,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 570 transitions. [2022-11-22 01:37:29,060 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 570 transitions. Word has length 80 [2022-11-22 01:37:29,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:29,060 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 570 transitions. [2022-11-22 01:37:29,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:29,061 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 570 transitions. [2022-11-22 01:37:29,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-22 01:37:29,062 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:29,062 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] [2022-11-22 01:37:29,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-22 01:37:29,062 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:37:29,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:29,063 INFO L85 PathProgramCache]: Analyzing trace with hash 652259760, now seen corresponding path program 1 times [2022-11-22 01:37:29,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:29,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179566664] [2022-11-22 01:37:29,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:29,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:29,788 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 01:37:29,788 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:29,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179566664] [2022-11-22 01:37:29,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179566664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:29,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:29,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-22 01:37:29,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712435619] [2022-11-22 01:37:29,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:29,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 01:37:29,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:29,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 01:37:29,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:37:29,791 INFO L87 Difference]: Start difference. First operand 461 states and 570 transitions. Second operand has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:32,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:32,155 INFO L93 Difference]: Finished difference Result 1150 states and 1425 transitions. [2022-11-22 01:37:32,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:37:32,156 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-22 01:37:32,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:32,158 INFO L225 Difference]: With dead ends: 1150 [2022-11-22 01:37:32,158 INFO L226 Difference]: Without dead ends: 1050 [2022-11-22 01:37:32,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-11-22 01:37:32,159 INFO L413 NwaCegarLoop]: 700 mSDtfsCounter, 2027 mSDsluCounter, 4686 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2027 SdHoareTripleChecker+Valid, 5386 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:32,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2027 Valid, 5386 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:37:32,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2022-11-22 01:37:32,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 437. [2022-11-22 01:37:32,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 425 states have (on average 1.2658823529411765) internal successors, (538), 436 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:32,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 538 transitions. [2022-11-22 01:37:32,419 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 538 transitions. Word has length 80 [2022-11-22 01:37:32,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:32,420 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 538 transitions. [2022-11-22 01:37:32,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:32,420 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 538 transitions. [2022-11-22 01:37:32,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-22 01:37:32,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:32,421 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] [2022-11-22 01:37:32,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-22 01:37:32,422 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:37:32,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:32,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1080890953, now seen corresponding path program 1 times [2022-11-22 01:37:32,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:32,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209336349] [2022-11-22 01:37:32,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:32,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:33,013 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 01:37:33,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:33,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209336349] [2022-11-22 01:37:33,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209336349] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:33,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:33,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 01:37:33,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648852167] [2022-11-22 01:37:33,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:33,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:37:33,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:33,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:37:33,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:37:33,015 INFO L87 Difference]: Start difference. First operand 437 states and 538 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:34,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:34,314 INFO L93 Difference]: Finished difference Result 753 states and 952 transitions. [2022-11-22 01:37:34,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:37:34,315 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-22 01:37:34,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:34,317 INFO L225 Difference]: With dead ends: 753 [2022-11-22 01:37:34,317 INFO L226 Difference]: Without dead ends: 577 [2022-11-22 01:37:34,318 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 01:37:34,318 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 1436 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 2723 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:34,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1436 Valid, 2723 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:37:34,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-11-22 01:37:34,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 341. [2022-11-22 01:37:34,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 333 states have (on average 1.2522522522522523) internal successors, (417), 340 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:34,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 417 transitions. [2022-11-22 01:37:34,560 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 417 transitions. Word has length 80 [2022-11-22 01:37:34,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:34,560 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 417 transitions. [2022-11-22 01:37:34,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:34,561 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 417 transitions. [2022-11-22 01:37:34,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-22 01:37:34,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:34,561 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] [2022-11-22 01:37:34,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-22 01:37:34,562 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:37:34,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:34,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1272157338, now seen corresponding path program 1 times [2022-11-22 01:37:34,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:34,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214669676] [2022-11-22 01:37:34,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:34,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:36,923 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 01:37:36,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:36,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214669676] [2022-11-22 01:37:36,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214669676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:36,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:36,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-11-22 01:37:36,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321740185] [2022-11-22 01:37:36,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:36,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-22 01:37:36,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:36,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-22 01:37:36,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2022-11-22 01:37:36,926 INFO L87 Difference]: Start difference. First operand 341 states and 417 transitions. Second operand has 29 states, 29 states have (on average 2.7586206896551726) internal successors, (80), 28 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:44,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:44,499 INFO L93 Difference]: Finished difference Result 877 states and 1079 transitions. [2022-11-22 01:37:44,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-22 01:37:44,499 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.7586206896551726) internal successors, (80), 28 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-22 01:37:44,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:44,501 INFO L225 Difference]: With dead ends: 877 [2022-11-22 01:37:44,501 INFO L226 Difference]: Without dead ends: 793 [2022-11-22 01:37:44,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=461, Invalid=2191, Unknown=0, NotChecked=0, Total=2652 [2022-11-22 01:37:44,503 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 1789 mSDsluCounter, 8076 mSDsCounter, 0 mSdLazyCounter, 5093 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1789 SdHoareTripleChecker+Valid, 8659 SdHoareTripleChecker+Invalid, 5108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 5093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:44,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1789 Valid, 8659 Invalid, 5108 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 5093 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-22 01:37:44,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2022-11-22 01:37:44,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 357. [2022-11-22 01:37:44,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 349 states have (on average 1.2521489971346704) internal successors, (437), 356 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:44,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 437 transitions. [2022-11-22 01:37:44,754 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 437 transitions. Word has length 80 [2022-11-22 01:37:44,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:44,754 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 437 transitions. [2022-11-22 01:37:44,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.7586206896551726) internal successors, (80), 28 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:44,754 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 437 transitions. [2022-11-22 01:37:44,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-22 01:37:44,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:44,755 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] [2022-11-22 01:37:44,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-22 01:37:44,755 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:37:44,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:44,756 INFO L85 PathProgramCache]: Analyzing trace with hash -659382271, now seen corresponding path program 1 times [2022-11-22 01:37:44,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:44,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323957810] [2022-11-22 01:37:44,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:44,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:45,301 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 01:37:45,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:45,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323957810] [2022-11-22 01:37:45,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323957810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:45,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:45,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:37:45,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142700275] [2022-11-22 01:37:45,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:45,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:37:45,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:45,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:37:45,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:37:45,303 INFO L87 Difference]: Start difference. First operand 357 states and 437 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:46,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:46,771 INFO L93 Difference]: Finished difference Result 653 states and 816 transitions. [2022-11-22 01:37:46,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:37:46,772 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-22 01:37:46,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:46,773 INFO L225 Difference]: With dead ends: 653 [2022-11-22 01:37:46,773 INFO L226 Difference]: Without dead ends: 440 [2022-11-22 01:37:46,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2022-11-22 01:37:46,774 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 1026 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:46,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 1118 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:37:46,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-11-22 01:37:47,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 224. [2022-11-22 01:37:47,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 221 states have (on average 1.2217194570135748) internal successors, (270), 223 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:47,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 270 transitions. [2022-11-22 01:37:47,072 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 270 transitions. Word has length 80 [2022-11-22 01:37:47,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:47,073 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 270 transitions. [2022-11-22 01:37:47,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:47,073 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 270 transitions. [2022-11-22 01:37:47,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-22 01:37:47,074 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:47,074 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] [2022-11-22 01:37:47,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-22 01:37:47,075 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:37:47,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:47,075 INFO L85 PathProgramCache]: Analyzing trace with hash 659418620, now seen corresponding path program 1 times [2022-11-22 01:37:47,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:47,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650486513] [2022-11-22 01:37:47,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:47,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:47,341 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 01:37:47,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:47,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650486513] [2022-11-22 01:37:47,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650486513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:47,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:47,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:37:47,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709193197] [2022-11-22 01:37:47,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:47,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:37:47,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:47,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:37:47,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:37:47,344 INFO L87 Difference]: Start difference. First operand 224 states and 270 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:48,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:48,374 INFO L93 Difference]: Finished difference Result 462 states and 578 transitions. [2022-11-22 01:37:48,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 01:37:48,375 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-22 01:37:48,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:48,376 INFO L225 Difference]: With dead ends: 462 [2022-11-22 01:37:48,376 INFO L226 Difference]: Without dead ends: 352 [2022-11-22 01:37:48,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2022-11-22 01:37:48,377 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 451 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:48,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 475 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:37:48,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-11-22 01:37:48,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 224. [2022-11-22 01:37:48,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 221 states have (on average 1.2126696832579185) internal successors, (268), 223 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:48,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 268 transitions. [2022-11-22 01:37:48,589 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 268 transitions. Word has length 81 [2022-11-22 01:37:48,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:48,589 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 268 transitions. [2022-11-22 01:37:48,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:48,589 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 268 transitions. [2022-11-22 01:37:48,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-22 01:37:48,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:48,590 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] [2022-11-22 01:37:48,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-22 01:37:48,590 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:37:48,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:48,590 INFO L85 PathProgramCache]: Analyzing trace with hash 110288228, now seen corresponding path program 1 times [2022-11-22 01:37:48,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:48,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046212075] [2022-11-22 01:37:48,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:48,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:49,043 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 01:37:49,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:49,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046212075] [2022-11-22 01:37:49,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046212075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:49,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:49,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:37:49,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718273993] [2022-11-22 01:37:49,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:49,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:37:49,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:49,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:37:49,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:37:49,045 INFO L87 Difference]: Start difference. First operand 224 states and 268 transitions. Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:51,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:51,169 INFO L93 Difference]: Finished difference Result 562 states and 707 transitions. [2022-11-22 01:37:51,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-22 01:37:51,169 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-22 01:37:51,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:51,170 INFO L225 Difference]: With dead ends: 562 [2022-11-22 01:37:51,171 INFO L226 Difference]: Without dead ends: 555 [2022-11-22 01:37:51,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=193, Invalid=509, Unknown=0, NotChecked=0, Total=702 [2022-11-22 01:37:51,171 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 1282 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:51,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1282 Valid, 711 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:37:51,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-11-22 01:37:51,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 228. [2022-11-22 01:37:51,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 225 states have (on average 1.208888888888889) internal successors, (272), 227 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:51,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 272 transitions. [2022-11-22 01:37:51,406 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 272 transitions. Word has length 81 [2022-11-22 01:37:51,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:51,407 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 272 transitions. [2022-11-22 01:37:51,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:51,407 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 272 transitions. [2022-11-22 01:37:51,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-22 01:37:51,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:51,408 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] [2022-11-22 01:37:51,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-22 01:37:51,409 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:37:51,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:51,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1625170428, now seen corresponding path program 1 times [2022-11-22 01:37:51,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:51,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400889843] [2022-11-22 01:37:51,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:51,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:51,668 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 01:37:51,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:51,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400889843] [2022-11-22 01:37:51,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400889843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:51,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:51,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:37:51,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398856272] [2022-11-22 01:37:51,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:51,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:37:51,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:51,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:37:51,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:37:51,671 INFO L87 Difference]: Start difference. First operand 228 states and 272 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:52,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:52,822 INFO L93 Difference]: Finished difference Result 361 states and 437 transitions. [2022-11-22 01:37:52,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 01:37:52,822 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-22 01:37:52,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:52,823 INFO L225 Difference]: With dead ends: 361 [2022-11-22 01:37:52,823 INFO L226 Difference]: Without dead ends: 354 [2022-11-22 01:37:52,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:37:52,824 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 381 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:52,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 568 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:37:52,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-11-22 01:37:53,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 224. [2022-11-22 01:37:53,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 221 states have (on average 1.2081447963800904) internal successors, (267), 223 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:53,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 267 transitions. [2022-11-22 01:37:53,025 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 267 transitions. Word has length 82 [2022-11-22 01:37:53,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:53,025 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 267 transitions. [2022-11-22 01:37:53,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:53,026 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 267 transitions. [2022-11-22 01:37:53,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-22 01:37:53,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:53,027 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] [2022-11-22 01:37:53,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-22 01:37:53,027 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:37:53,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:53,028 INFO L85 PathProgramCache]: Analyzing trace with hash -571562505, now seen corresponding path program 1 times [2022-11-22 01:37:53,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:53,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710121696] [2022-11-22 01:37:53,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:53,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:53,656 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 01:37:53,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:53,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710121696] [2022-11-22 01:37:53,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710121696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:53,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:53,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 01:37:53,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164298378] [2022-11-22 01:37:53,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:53,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:37:53,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:53,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:37:53,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:37:53,658 INFO L87 Difference]: Start difference. First operand 224 states and 267 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:55,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:55,382 INFO L93 Difference]: Finished difference Result 532 states and 665 transitions. [2022-11-22 01:37:55,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:37:55,383 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-11-22 01:37:55,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:55,384 INFO L225 Difference]: With dead ends: 532 [2022-11-22 01:37:55,384 INFO L226 Difference]: Without dead ends: 526 [2022-11-22 01:37:55,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-22 01:37:55,385 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 904 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:55,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 1420 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:37:55,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2022-11-22 01:37:55,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 218. [2022-11-22 01:37:55,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 216 states have (on average 1.2037037037037037) internal successors, (260), 217 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:55,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 260 transitions. [2022-11-22 01:37:55,609 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 260 transitions. Word has length 83 [2022-11-22 01:37:55,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:55,609 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 260 transitions. [2022-11-22 01:37:55,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:55,610 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 260 transitions. [2022-11-22 01:37:55,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-22 01:37:55,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:55,610 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] [2022-11-22 01:37:55,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-22 01:37:55,611 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:37:55,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:55,611 INFO L85 PathProgramCache]: Analyzing trace with hash 664227807, now seen corresponding path program 1 times [2022-11-22 01:37:55,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:55,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077919762] [2022-11-22 01:37:55,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:55,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:57,039 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 01:37:57,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:57,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077919762] [2022-11-22 01:37:57,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077919762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:57,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:57,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-22 01:37:57,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014112127] [2022-11-22 01:37:57,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:57,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-22 01:37:57,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:57,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-22 01:37:57,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-22 01:37:57,041 INFO L87 Difference]: Start difference. First operand 218 states and 260 transitions. Second operand has 26 states, 26 states have (on average 3.1923076923076925) internal successors, (83), 26 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:37:59,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:59,816 INFO L93 Difference]: Finished difference Result 259 states and 303 transitions. [2022-11-22 01:37:59,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-22 01:37:59,817 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.1923076923076925) internal successors, (83), 26 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-11-22 01:37:59,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:59,818 INFO L225 Difference]: With dead ends: 259 [2022-11-22 01:37:59,818 INFO L226 Difference]: Without dead ends: 251 [2022-11-22 01:37:59,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=348, Invalid=1908, Unknown=0, NotChecked=0, Total=2256 [2022-11-22 01:37:59,819 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 480 mSDsluCounter, 1831 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:59,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 1943 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1384 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 01:37:59,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-11-22 01:38:00,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 232. [2022-11-22 01:38:00,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 230 states have (on average 1.2043478260869565) internal successors, (277), 231 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:38:00,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 277 transitions. [2022-11-22 01:38:00,101 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 277 transitions. Word has length 83 [2022-11-22 01:38:00,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:38:00,101 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 277 transitions. [2022-11-22 01:38:00,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.1923076923076925) internal successors, (83), 26 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:38:00,102 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 277 transitions. [2022-11-22 01:38:00,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-22 01:38:00,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:00,103 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] [2022-11-22 01:38:00,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-22 01:38:00,103 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:38:00,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:00,104 INFO L85 PathProgramCache]: Analyzing trace with hash 344900036, now seen corresponding path program 1 times [2022-11-22 01:38:00,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:00,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992263359] [2022-11-22 01:38:00,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:00,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:00,718 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 01:38:00,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:00,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992263359] [2022-11-22 01:38:00,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992263359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:38:00,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:38:00,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-22 01:38:00,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060597856] [2022-11-22 01:38:00,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:38:00,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 01:38:00,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:00,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 01:38:00,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:38:00,721 INFO L87 Difference]: Start difference. First operand 232 states and 277 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:38:03,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:38:03,478 INFO L93 Difference]: Finished difference Result 752 states and 957 transitions. [2022-11-22 01:38:03,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-22 01:38:03,479 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-11-22 01:38:03,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:38:03,480 INFO L225 Difference]: With dead ends: 752 [2022-11-22 01:38:03,480 INFO L226 Difference]: Without dead ends: 726 [2022-11-22 01:38:03,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-22 01:38:03,482 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 852 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:38:03,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 2873 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:38:03,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-11-22 01:38:03,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 200. [2022-11-22 01:38:03,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 1.2010050251256281) internal successors, (239), 199 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:38:03,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 239 transitions. [2022-11-22 01:38:03,735 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 239 transitions. Word has length 84 [2022-11-22 01:38:03,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:38:03,735 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 239 transitions. [2022-11-22 01:38:03,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:38:03,736 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 239 transitions. [2022-11-22 01:38:03,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-22 01:38:03,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:03,737 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] [2022-11-22 01:38:03,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-22 01:38:03,737 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:38:03,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:03,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1454739344, now seen corresponding path program 1 times [2022-11-22 01:38:03,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:03,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934240679] [2022-11-22 01:38:03,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:03,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:03,882 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 01:38:03,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:03,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934240679] [2022-11-22 01:38:03,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934240679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:38:03,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:38:03,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:38:03,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520281180] [2022-11-22 01:38:03,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:38:03,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:38:03,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:03,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:38:03,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:38:03,885 INFO L87 Difference]: Start difference. First operand 200 states and 239 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:38:04,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:38:04,356 INFO L93 Difference]: Finished difference Result 288 states and 357 transitions. [2022-11-22 01:38:04,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:38:04,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-11-22 01:38:04,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:38:04,358 INFO L225 Difference]: With dead ends: 288 [2022-11-22 01:38:04,358 INFO L226 Difference]: Without dead ends: 247 [2022-11-22 01:38:04,358 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 01:38:04,359 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 63 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:38:04,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 284 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:38:04,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-11-22 01:38:04,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 237. [2022-11-22 01:38:04,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 236 states have (on average 1.2203389830508475) internal successors, (288), 236 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:38:04,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 288 transitions. [2022-11-22 01:38:04,684 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 288 transitions. Word has length 99 [2022-11-22 01:38:04,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:38:04,684 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 288 transitions. [2022-11-22 01:38:04,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:38:04,684 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 288 transitions. [2022-11-22 01:38:04,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-22 01:38:04,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:04,685 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 01:38:04,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-22 01:38:04,685 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:38:04,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:04,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1734669750, now seen corresponding path program 1 times [2022-11-22 01:38:04,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:04,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691936905] [2022-11-22 01:38:04,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:04,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:04,839 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 01:38:04,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:04,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691936905] [2022-11-22 01:38:04,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691936905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:38:04,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:38:04,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:38:04,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183301012] [2022-11-22 01:38:04,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:38:04,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:38:04,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:04,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:38:04,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:38:04,842 INFO L87 Difference]: Start difference. First operand 237 states and 288 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 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 01:38:05,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:38:05,898 INFO L93 Difference]: Finished difference Result 467 states and 598 transitions. [2022-11-22 01:38:05,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:38:05,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 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 01:38:05,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:38:05,900 INFO L225 Difference]: With dead ends: 467 [2022-11-22 01:38:05,900 INFO L226 Difference]: Without dead ends: 352 [2022-11-22 01:38:05,901 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 01:38:05,901 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 56 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:38:05,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 284 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:38:05,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-11-22 01:38:06,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 338. [2022-11-22 01:38:06,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 337 states have (on average 1.258160237388724) internal successors, (424), 337 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:38:06,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 424 transitions. [2022-11-22 01:38:06,543 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 424 transitions. Word has length 102 [2022-11-22 01:38:06,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:38:06,543 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 424 transitions. [2022-11-22 01:38:06,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 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 01:38:06,544 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 424 transitions. [2022-11-22 01:38:06,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-22 01:38:06,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:06,544 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 01:38:06,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-22 01:38:06,545 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:38:06,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:06,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1155099651, now seen corresponding path program 1 times [2022-11-22 01:38:06,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:06,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12116932] [2022-11-22 01:38:06,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:06,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:06,676 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 01:38:06,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:06,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12116932] [2022-11-22 01:38:06,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12116932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:38:06,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:38:06,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:38:06,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200693330] [2022-11-22 01:38:06,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:38:06,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:38:06,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:06,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:38:06,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:38:06,678 INFO L87 Difference]: Start difference. First operand 338 states and 424 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 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 01:38:07,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:38:07,897 INFO L93 Difference]: Finished difference Result 770 states and 1006 transitions. [2022-11-22 01:38:07,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:38:07,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 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 01:38:07,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:38:07,899 INFO L225 Difference]: With dead ends: 770 [2022-11-22 01:38:07,899 INFO L226 Difference]: Without dead ends: 554 [2022-11-22 01:38:07,900 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 01:38:07,900 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 49 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:38:07,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 284 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:38:07,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-11-22 01:38:09,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 528. [2022-11-22 01:38:09,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.2865275142314991) internal successors, (678), 527 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:38:09,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 678 transitions. [2022-11-22 01:38:09,024 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 678 transitions. Word has length 105 [2022-11-22 01:38:09,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:38:09,024 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 678 transitions. [2022-11-22 01:38:09,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 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 01:38:09,025 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 678 transitions. [2022-11-22 01:38:09,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-22 01:38:09,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:09,026 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] [2022-11-22 01:38:09,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-22 01:38:09,026 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:38:09,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:09,027 INFO L85 PathProgramCache]: Analyzing trace with hash -2007713310, now seen corresponding path program 1 times [2022-11-22 01:38:09,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:09,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304295940] [2022-11-22 01:38:09,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:09,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:09,153 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 01:38:09,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:09,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304295940] [2022-11-22 01:38:09,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304295940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:38:09,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:38:09,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:38:09,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919491423] [2022-11-22 01:38:09,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:38:09,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:38:09,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:09,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:38:09,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:38:09,156 INFO L87 Difference]: Start difference. First operand 528 states and 678 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:38:11,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:38:11,332 INFO L93 Difference]: Finished difference Result 1340 states and 1768 transitions. [2022-11-22 01:38:11,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:38:11,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-11-22 01:38:11,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:38:11,334 INFO L225 Difference]: With dead ends: 1340 [2022-11-22 01:38:11,334 INFO L226 Difference]: Without dead ends: 934 [2022-11-22 01:38:11,334 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 01:38:11,335 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 42 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:38:11,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 284 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:38:11,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2022-11-22 01:38:13,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 884. [2022-11-22 01:38:13,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 883 states have (on average 1.3023782559456398) internal successors, (1150), 883 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:38:13,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1150 transitions. [2022-11-22 01:38:13,096 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1150 transitions. Word has length 108 [2022-11-22 01:38:13,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:38:13,097 INFO L495 AbstractCegarLoop]: Abstraction has 884 states and 1150 transitions. [2022-11-22 01:38:13,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:38:13,097 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1150 transitions. [2022-11-22 01:38:13,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 01:38:13,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:13,099 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 01:38:13,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-22 01:38:13,099 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:38:13,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:13,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1335407412, now seen corresponding path program 1 times [2022-11-22 01:38:13,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:13,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558327924] [2022-11-22 01:38:13,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:13,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:13,245 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 01:38:13,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:13,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558327924] [2022-11-22 01:38:13,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558327924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:38:13,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:38:13,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:38:13,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776058358] [2022-11-22 01:38:13,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:38:13,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:38:13,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:13,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:38:13,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:38:13,248 INFO L87 Difference]: Start difference. First operand 884 states and 1150 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 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 01:38:17,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:38:17,732 INFO L93 Difference]: Finished difference Result 2408 states and 3184 transitions. [2022-11-22 01:38:17,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:38:17,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 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 01:38:17,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:38:17,736 INFO L225 Difference]: With dead ends: 2408 [2022-11-22 01:38:17,736 INFO L226 Difference]: Without dead ends: 1646 [2022-11-22 01:38:17,738 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 01:38:17,738 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 32 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:38:17,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 284 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:38:17,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-11-22 01:38:21,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1548. [2022-11-22 01:38:21,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1547 states have (on average 1.3070458952811894) internal successors, (2022), 1547 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:38:21,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 2022 transitions. [2022-11-22 01:38:21,370 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 2022 transitions. Word has length 111 [2022-11-22 01:38:21,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:38:21,371 INFO L495 AbstractCegarLoop]: Abstraction has 1548 states and 2022 transitions. [2022-11-22 01:38:21,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 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 01:38:21,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 2022 transitions. [2022-11-22 01:38:21,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 01:38:21,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:21,373 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 01:38:21,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-22 01:38:21,373 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:38:21,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:21,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1867749565, now seen corresponding path program 1 times [2022-11-22 01:38:21,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:21,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907654216] [2022-11-22 01:38:21,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:21,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:21,568 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 01:38:21,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:21,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907654216] [2022-11-22 01:38:21,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907654216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:38:21,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:38:21,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:38:21,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407285881] [2022-11-22 01:38:21,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:38:21,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:38:21,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:21,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:38:21,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:38:21,572 INFO L87 Difference]: Start difference. First operand 1548 states and 2022 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) 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 01:38:34,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:38:34,812 INFO L93 Difference]: Finished difference Result 6183 states and 8171 transitions. [2022-11-22 01:38:34,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:38:34,813 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) 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 01:38:34,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:38:34,824 INFO L225 Difference]: With dead ends: 6183 [2022-11-22 01:38:34,824 INFO L226 Difference]: Without dead ends: 4757 [2022-11-22 01:38:34,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-22 01:38:34,828 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 797 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 1301 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:38:34,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 1301 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:38:34,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4757 states. [2022-11-22 01:38:40,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4757 to 2214. [2022-11-22 01:38:40,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2214 states, 2213 states have (on average 1.3014008133755084) internal successors, (2880), 2213 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:38:40,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2214 states to 2214 states and 2880 transitions. [2022-11-22 01:38:40,689 INFO L78 Accepts]: Start accepts. Automaton has 2214 states and 2880 transitions. Word has length 114 [2022-11-22 01:38:40,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:38:40,689 INFO L495 AbstractCegarLoop]: Abstraction has 2214 states and 2880 transitions. [2022-11-22 01:38:40,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) 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 01:38:40,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2214 states and 2880 transitions. [2022-11-22 01:38:40,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 01:38:40,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:40,690 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, 1, 1, 1] [2022-11-22 01:38:40,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-22 01:38:40,691 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:38:40,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:40,691 INFO L85 PathProgramCache]: Analyzing trace with hash -645776805, now seen corresponding path program 1 times [2022-11-22 01:38:40,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:40,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148119720] [2022-11-22 01:38:40,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:40,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:40,769 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 01:38:40,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:40,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148119720] [2022-11-22 01:38:40,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148119720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:38:40,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:38:40,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:38:40,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310630845] [2022-11-22 01:38:40,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:38:40,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:38:40,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:40,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:38:40,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:38:40,776 INFO L87 Difference]: Start difference. First operand 2214 states and 2880 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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 01:38:47,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:38:47,997 INFO L93 Difference]: Finished difference Result 4836 states and 6332 transitions. [2022-11-22 01:38:47,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:38:47,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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 01:38:47,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:38:48,004 INFO L225 Difference]: With dead ends: 4836 [2022-11-22 01:38:48,004 INFO L226 Difference]: Without dead ends: 2744 [2022-11-22 01:38:48,008 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 01:38:48,008 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 77 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:38:48,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 220 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:38:48,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2744 states. [2022-11-22 01:38:55,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2744 to 2742. [2022-11-22 01:38:55,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2742 states, 2741 states have (on average 1.2951477562933236) internal successors, (3550), 2741 states have internal predecessors, (3550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:38:55,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2742 states to 2742 states and 3550 transitions. [2022-11-22 01:38:55,430 INFO L78 Accepts]: Start accepts. Automaton has 2742 states and 3550 transitions. Word has length 116 [2022-11-22 01:38:55,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:38:55,430 INFO L495 AbstractCegarLoop]: Abstraction has 2742 states and 3550 transitions. [2022-11-22 01:38:55,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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 01:38:55,431 INFO L276 IsEmpty]: Start isEmpty. Operand 2742 states and 3550 transitions. [2022-11-22 01:38:55,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 01:38:55,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:55,432 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 01:38:55,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-22 01:38:55,432 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:38:55,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:55,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1486304309, now seen corresponding path program 1 times [2022-11-22 01:38:55,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:55,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576719348] [2022-11-22 01:38:55,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:55,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:55,749 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 01:38:55,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:55,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576719348] [2022-11-22 01:38:55,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576719348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:38:55,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:38:55,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:38:55,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901794981] [2022-11-22 01:38:55,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:38:55,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:38:55,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:55,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:38:55,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:38:55,752 INFO L87 Difference]: Start difference. First operand 2742 states and 3550 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) 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 01:39:03,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:39:03,709 INFO L93 Difference]: Finished difference Result 5364 states and 6968 transitions. [2022-11-22 01:39:03,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:39:03,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) 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 01:39:03,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:39:03,714 INFO L225 Difference]: With dead ends: 5364 [2022-11-22 01:39:03,715 INFO L226 Difference]: Without dead ends: 2744 [2022-11-22 01:39:03,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:39:03,719 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 516 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:39:03,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 345 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:39:03,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2744 states. [2022-11-22 01:39:10,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2744 to 2742. [2022-11-22 01:39:10,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2742 states, 2741 states have (on average 1.2944180955855527) internal successors, (3548), 2741 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:39:10,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2742 states to 2742 states and 3548 transitions. [2022-11-22 01:39:10,861 INFO L78 Accepts]: Start accepts. Automaton has 2742 states and 3548 transitions. Word has length 116 [2022-11-22 01:39:10,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:39:10,862 INFO L495 AbstractCegarLoop]: Abstraction has 2742 states and 3548 transitions. [2022-11-22 01:39:10,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) 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 01:39:10,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2742 states and 3548 transitions. [2022-11-22 01:39:10,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 01:39:10,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:39:10,864 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:39:10,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-22 01:39:10,864 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:39:10,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:39:10,865 INFO L85 PathProgramCache]: Analyzing trace with hash 611998002, now seen corresponding path program 1 times [2022-11-22 01:39:10,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:39:10,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773077486] [2022-11-22 01:39:10,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:39:10,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:39:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:39:11,183 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 01:39:11,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:39:11,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773077486] [2022-11-22 01:39:11,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773077486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:39:11,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:39:11,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:39:11,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928738849] [2022-11-22 01:39:11,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:39:11,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:39:11,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:39:11,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:39:11,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:39:11,186 INFO L87 Difference]: Start difference. First operand 2742 states and 3548 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) 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 01:39:21,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:39:21,899 INFO L93 Difference]: Finished difference Result 3860 states and 4915 transitions. [2022-11-22 01:39:21,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:39:21,899 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) 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 01:39:21,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:39:21,905 INFO L225 Difference]: With dead ends: 3860 [2022-11-22 01:39:21,905 INFO L226 Difference]: Without dead ends: 3858 [2022-11-22 01:39:21,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:39:21,907 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 323 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:39:21,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 920 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:39:21,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2022-11-22 01:39:29,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 2742. [2022-11-22 01:39:29,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2742 states, 2741 states have (on average 1.2769062385990515) internal successors, (3500), 2741 states have internal predecessors, (3500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:39:29,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2742 states to 2742 states and 3500 transitions. [2022-11-22 01:39:29,202 INFO L78 Accepts]: Start accepts. Automaton has 2742 states and 3500 transitions. Word has length 117 [2022-11-22 01:39:29,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:39:29,202 INFO L495 AbstractCegarLoop]: Abstraction has 2742 states and 3500 transitions. [2022-11-22 01:39:29,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) 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 01:39:29,203 INFO L276 IsEmpty]: Start isEmpty. Operand 2742 states and 3500 transitions. [2022-11-22 01:39:29,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-22 01:39:29,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:39:29,205 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:39:29,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-22 01:39:29,205 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:39:29,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:39:29,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1720777481, now seen corresponding path program 1 times [2022-11-22 01:39:29,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:39:29,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533047456] [2022-11-22 01:39:29,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:39:29,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:39:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:39:40,925 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:39:40,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:39:40,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533047456] [2022-11-22 01:39:40,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533047456] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:39:40,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47238078] [2022-11-22 01:39:40,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:39:40,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:39:40,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:39:40,930 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:39:40,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:39:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:39:41,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-22 01:39:41,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:39:43,000 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-22 01:39:43,000 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:39:43,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47238078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:39:43,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:39:43,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [43] total 49 [2022-11-22 01:39:43,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095203106] [2022-11-22 01:39:43,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:39:43,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:39:43,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:39:43,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:39:43,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=2302, Unknown=0, NotChecked=0, Total=2450 [2022-11-22 01:39:43,004 INFO L87 Difference]: Start difference. First operand 2742 states and 3500 transitions. Second operand has 8 states, 8 states have (on average 15.5) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:39:55,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:39:55,072 INFO L93 Difference]: Finished difference Result 6838 states and 8765 transitions. [2022-11-22 01:39:55,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:39:55,073 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2022-11-22 01:39:55,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:39:55,077 INFO L225 Difference]: With dead ends: 6838 [2022-11-22 01:39:55,078 INFO L226 Difference]: Without dead ends: 4204 [2022-11-22 01:39:55,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=212, Invalid=3210, Unknown=0, NotChecked=0, Total=3422 [2022-11-22 01:39:55,082 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 507 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:39:55,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 381 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:39:55,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4204 states. [2022-11-22 01:40:02,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4204 to 2742. [2022-11-22 01:40:02,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2742 states, 2741 states have (on average 1.2761765778912806) internal successors, (3498), 2741 states have internal predecessors, (3498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:02,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2742 states to 2742 states and 3498 transitions. [2022-11-22 01:40:02,337 INFO L78 Accepts]: Start accepts. Automaton has 2742 states and 3498 transitions. Word has length 133 [2022-11-22 01:40:02,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:02,338 INFO L495 AbstractCegarLoop]: Abstraction has 2742 states and 3498 transitions. [2022-11-22 01:40:02,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:02,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2742 states and 3498 transitions. [2022-11-22 01:40:02,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-22 01:40:02,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:02,339 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:02,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:40:02,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2022-11-22 01:40:02,540 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:40:02,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:02,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1180063748, now seen corresponding path program 1 times [2022-11-22 01:40:02,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:02,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860373120] [2022-11-22 01:40:02,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:02,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:04,360 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-22 01:40:04,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:04,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860373120] [2022-11-22 01:40:04,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860373120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:04,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:04,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-22 01:40:04,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060960934] [2022-11-22 01:40:04,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:04,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-22 01:40:04,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:04,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-22 01:40:04,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2022-11-22 01:40:04,363 INFO L87 Difference]: Start difference. First operand 2742 states and 3498 transitions. Second operand has 26 states, 26 states have (on average 4.846153846153846) internal successors, (126), 26 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:20,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:20,015 INFO L93 Difference]: Finished difference Result 8024 states and 10277 transitions. [2022-11-22 01:40:20,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-22 01:40:20,015 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.846153846153846) internal successors, (126), 26 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-11-22 01:40:20,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:20,021 INFO L225 Difference]: With dead ends: 8024 [2022-11-22 01:40:20,021 INFO L226 Difference]: Without dead ends: 5395 [2022-11-22 01:40:20,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=352, Invalid=1904, Unknown=0, NotChecked=0, Total=2256 [2022-11-22 01:40:20,024 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 606 mSDsluCounter, 1420 mSDsCounter, 0 mSdLazyCounter, 1159 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:20,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 1515 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1159 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:40:20,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5395 states. [2022-11-22 01:40:27,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5395 to 2757. [2022-11-22 01:40:27,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2757 states, 2756 states have (on average 1.275399129172714) internal successors, (3515), 2756 states have internal predecessors, (3515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:27,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2757 states to 2757 states and 3515 transitions. [2022-11-22 01:40:27,236 INFO L78 Accepts]: Start accepts. Automaton has 2757 states and 3515 transitions. Word has length 135 [2022-11-22 01:40:27,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:40:27,236 INFO L495 AbstractCegarLoop]: Abstraction has 2757 states and 3515 transitions. [2022-11-22 01:40:27,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.846153846153846) internal successors, (126), 26 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:27,237 INFO L276 IsEmpty]: Start isEmpty. Operand 2757 states and 3515 transitions. [2022-11-22 01:40:27,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-22 01:40:27,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:27,238 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:40:27,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-22 01:40:27,238 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-22 01:40:27,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:27,239 INFO L85 PathProgramCache]: Analyzing trace with hash 186316812, now seen corresponding path program 1 times [2022-11-22 01:40:27,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:27,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74020202] [2022-11-22 01:40:27,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:27,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:42,709 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:40:42,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:42,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74020202] [2022-11-22 01:40:42,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74020202] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:40:42,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392746761] [2022-11-22 01:40:42,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:42,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:40:42,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:40:42,712 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:40:42,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e5d227a-22bf-4382-be38-827dfc8c8f38/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:40:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:43,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 87 conjunts are in the unsatisfiable core [2022-11-22 01:40:43,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:41:09,131 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:41:09,131 INFO L328 TraceCheckSpWp]: Computing backward predicates...