./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_001cce62-35e6-4533-9fce-b50a52acf007/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_001cce62-35e6-4533-9fce-b50a52acf007/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_001cce62-35e6-4533-9fce-b50a52acf007/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_001cce62-35e6-4533-9fce-b50a52acf007/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_001cce62-35e6-4533-9fce-b50a52acf007/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_001cce62-35e6-4533-9fce-b50a52acf007/bin/utaipan-gh47qXpMRh --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 0e3838e9b0fe368810fc333620df3a05f4f501b739959aedb61fcfde88b41758 --- 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-2329fc7 [2022-12-14 06:50:49,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:50:49,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:50:49,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:50:49,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:50:49,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:50:49,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:50:49,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:50:49,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:50:49,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:50:49,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:50:49,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:50:49,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:50:49,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:50:49,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:50:49,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:50:49,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:50:49,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:50:49,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:50:49,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:50:49,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:50:49,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:50:49,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:50:49,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:50:49,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:50:49,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:50:49,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:50:49,405 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:50:49,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:50:49,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:50:49,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:50:49,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:50:49,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:50:49,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:50:49,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:50:49,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:50:49,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:50:49,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:50:49,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:50:49,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:50:49,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:50:49,412 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_001cce62-35e6-4533-9fce-b50a52acf007/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:50:49,427 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:50:49,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:50:49,428 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:50:49,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:50:49,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:50:49,428 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:50:49,429 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:50:49,429 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:50:49,429 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:50:49,429 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:50:49,429 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:50:49,429 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:50:49,429 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:50:49,429 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:50:49,429 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:50:49,430 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:50:49,430 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:50:49,430 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:50:49,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:50:49,430 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:50:49,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:50:49,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:50:49,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:50:49,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:50:49,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:50:49,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:50:49,431 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:50:49,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:50:49,432 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:50:49,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:50:49,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:50:49,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:50:49,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:50:49,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:50:49,432 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:50:49,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:50:49,433 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:50:49,433 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:50:49,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:50:49,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:50:49,433 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:50:49,433 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_001cce62-35e6-4533-9fce-b50a52acf007/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_001cce62-35e6-4533-9fce-b50a52acf007/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e3838e9b0fe368810fc333620df3a05f4f501b739959aedb61fcfde88b41758 [2022-12-14 06:50:49,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:50:49,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:50:49,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:50:49,621 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:50:49,621 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:50:49,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_001cce62-35e6-4533-9fce-b50a52acf007/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2022-12-14 06:50:52,296 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:50:52,743 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:50:52,744 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2022-12-14 06:50:52,785 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_001cce62-35e6-4533-9fce-b50a52acf007/bin/utaipan-gh47qXpMRh/data/8ad1eeb22/6475217918794e01bd2bbf6471e63b19/FLAG8311d2d9b [2022-12-14 06:50:52,797 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_001cce62-35e6-4533-9fce-b50a52acf007/bin/utaipan-gh47qXpMRh/data/8ad1eeb22/6475217918794e01bd2bbf6471e63b19 [2022-12-14 06:50:52,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:50:52,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:50:52,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:50:52,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:50:52,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:50:52,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:50:52" (1/1) ... [2022-12-14 06:50:52,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58910f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:52, skipping insertion in model container [2022-12-14 06:50:52,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:50:52" (1/1) ... [2022-12-14 06:50:52,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:50:53,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:50:53,693 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[93880,93893] [2022-12-14 06:50:53,766 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[127977,127990] [2022-12-14 06:50:53,878 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[184673,184686] [2022-12-14 06:50:53,941 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[220032,220045] [2022-12-14 06:50:53,961 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[229801,229814] [2022-12-14 06:50:53,966 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[232051,232064] [2022-12-14 06:50:53,999 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[249702,249715] [2022-12-14 06:50:54,013 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[257723,257736] [2022-12-14 06:50:54,070 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[288453,288466] [2022-12-14 06:50:54,131 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[318193,318206] [2022-12-14 06:50:54,310 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[406252,406265] [2022-12-14 06:50:54,345 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[425331,425344] [2022-12-14 06:50:54,382 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[445911,445924] [2022-12-14 06:50:54,395 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[453486,453499] [2022-12-14 06:50:54,403 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[457284,457297] [2022-12-14 06:50:54,429 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[472883,472896] [2022-12-14 06:50:54,468 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[488771,488784] [2022-12-14 06:50:54,527 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[523323,523336] [2022-12-14 06:50:54,683 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[617972,617985] [2022-12-14 06:50:54,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:50:54,863 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:50:55,046 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[93880,93893] [2022-12-14 06:50:55,107 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[127977,127990] [2022-12-14 06:50:55,227 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[184673,184686] [2022-12-14 06:50:55,283 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[220032,220045] [2022-12-14 06:50:55,298 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[229801,229814] [2022-12-14 06:50:55,302 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[232051,232064] [2022-12-14 06:50:55,329 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[249702,249715] [2022-12-14 06:50:55,342 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[257723,257736] [2022-12-14 06:50:55,388 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[288453,288466] [2022-12-14 06:50:55,433 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[318193,318206] [2022-12-14 06:50:55,570 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[406252,406265] [2022-12-14 06:50:55,599 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[425331,425344] [2022-12-14 06:50:55,629 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[445911,445924] [2022-12-14 06:50:55,640 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[453486,453499] [2022-12-14 06:50:55,647 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[457284,457297] [2022-12-14 06:50:55,669 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[472883,472896] [2022-12-14 06:50:55,693 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_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[488771,488784] [2022-12-14 06:50:55,745 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[523323,523336] [2022-12-14 06:50:55,874 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_001cce62-35e6-4533-9fce-b50a52acf007/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[617972,617985] [2022-12-14 06:50:56,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:50:56,043 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:50:56,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:56 WrapperNode [2022-12-14 06:50:56,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:50:56,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:50:56,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:50:56,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:50:56,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:56" (1/1) ... [2022-12-14 06:50:56,106 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:56" (1/1) ... [2022-12-14 06:50:56,330 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29764 [2022-12-14 06:50:56,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:50:56,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:50:56,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:50:56,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:50:56,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:56" (1/1) ... [2022-12-14 06:50:56,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:56" (1/1) ... [2022-12-14 06:50:56,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:56" (1/1) ... [2022-12-14 06:50:56,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:56" (1/1) ... [2022-12-14 06:50:56,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:56" (1/1) ... [2022-12-14 06:50:56,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:56" (1/1) ... [2022-12-14 06:50:56,664 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:56" (1/1) ... [2022-12-14 06:50:56,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:56" (1/1) ... [2022-12-14 06:50:56,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:50:56,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:50:56,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:50:56,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:50:56,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:56" (1/1) ... [2022-12-14 06:50:56,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:50:56,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_001cce62-35e6-4533-9fce-b50a52acf007/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:50:56,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_001cce62-35e6-4533-9fce-b50a52acf007/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:50:56,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_001cce62-35e6-4533-9fce-b50a52acf007/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:50:56,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:50:56,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:50:56,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:50:56,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:50:57,314 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:50:57,315 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:51:04,585 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:51:05,557 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:51:05,557 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 06:51:05,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:51:05 BoogieIcfgContainer [2022-12-14 06:51:05,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:51:05,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:51:05,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:51:05,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:51:05,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:50:52" (1/3) ... [2022-12-14 06:51:05,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66974125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:51:05, skipping insertion in model container [2022-12-14 06:51:05,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:50:56" (2/3) ... [2022-12-14 06:51:05,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66974125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:51:05, skipping insertion in model container [2022-12-14 06:51:05,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:51:05" (3/3) ... [2022-12-14 06:51:05,569 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2022-12-14 06:51:05,581 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:51:05,581 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2022-12-14 06:51:05,678 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:51:05,682 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;@749e8162, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:51:05,682 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-12-14 06:51:05,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 6224 states, 6204 states have (on average 1.776434558349452) internal successors, (11021), 6223 states have internal predecessors, (11021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:51:05,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-14 06:51:05,728 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:51:05,729 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] [2022-12-14 06:51:05,729 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:51:05,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:51:05,733 INFO L85 PathProgramCache]: Analyzing trace with hash 556941127, now seen corresponding path program 1 times [2022-12-14 06:51:05,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:51:05,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789706685] [2022-12-14 06:51:05,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:05,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:51:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:06,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:51:06,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:06,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789706685] [2022-12-14 06:51:06,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789706685] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:51:06,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:51:06,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:51:06,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343705049] [2022-12-14 06:51:06,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:51:06,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:51:06,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:51:06,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:51:06,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:51:06,346 INFO L87 Difference]: Start difference. First operand has 6224 states, 6204 states have (on average 1.776434558349452) internal successors, (11021), 6223 states have internal predecessors, (11021), 0 states have call successors, (0), 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 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:51:10,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:51:10,025 INFO L93 Difference]: Finished difference Result 9150 states and 15957 transitions. [2022-12-14 06:51:10,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:51:10,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-12-14 06:51:10,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:51:10,051 INFO L225 Difference]: With dead ends: 9150 [2022-12-14 06:51:10,051 INFO L226 Difference]: Without dead ends: 5803 [2022-12-14 06:51:10,058 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 [2022-12-14 06:51:10,061 INFO L413 NwaCegarLoop]: 4772 mSDtfsCounter, 28527 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 4482 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28527 SdHoareTripleChecker+Valid, 5706 SdHoareTripleChecker+Invalid, 4541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 4482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:51:10,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28527 Valid, 5706 Invalid, 4541 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 4482 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 06:51:10,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5803 states. [2022-12-14 06:51:10,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5803 to 5770. [2022-12-14 06:51:10,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5770 states, 5751 states have (on average 1.2809946096331073) internal successors, (7367), 5769 states have internal predecessors, (7367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:51:10,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5770 states to 5770 states and 7367 transitions. [2022-12-14 06:51:10,226 INFO L78 Accepts]: Start accepts. Automaton has 5770 states and 7367 transitions. Word has length 77 [2022-12-14 06:51:10,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:51:10,227 INFO L495 AbstractCegarLoop]: Abstraction has 5770 states and 7367 transitions. [2022-12-14 06:51:10,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:51:10,227 INFO L276 IsEmpty]: Start isEmpty. Operand 5770 states and 7367 transitions. [2022-12-14 06:51:10,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 06:51:10,235 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:51:10,235 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] [2022-12-14 06:51:10,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:51:10,236 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:51:10,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:51:10,237 INFO L85 PathProgramCache]: Analyzing trace with hash 129891559, now seen corresponding path program 1 times [2022-12-14 06:51:10,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:51:10,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266298044] [2022-12-14 06:51:10,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:10,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:51:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:10,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:51:10,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:10,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266298044] [2022-12-14 06:51:10,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266298044] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:51:10,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:51:10,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:51:10,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028925390] [2022-12-14 06:51:10,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:51:10,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:51:10,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:51:10,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:51:10,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:51:10,407 INFO L87 Difference]: Start difference. First operand 5770 states and 7367 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:51:13,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:51:13,116 INFO L93 Difference]: Finished difference Result 9466 states and 12008 transitions. [2022-12-14 06:51:13,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:51:13,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-12-14 06:51:13,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:51:13,132 INFO L225 Difference]: With dead ends: 9466 [2022-12-14 06:51:13,132 INFO L226 Difference]: Without dead ends: 6014 [2022-12-14 06:51:13,136 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 [2022-12-14 06:51:13,137 INFO L413 NwaCegarLoop]: 2362 mSDtfsCounter, 17082 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 3201 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17082 SdHoareTripleChecker+Valid, 3061 SdHoareTripleChecker+Invalid, 3239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 3201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:51:13,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17082 Valid, 3061 Invalid, 3239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 3201 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 06:51:13,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6014 states. [2022-12-14 06:51:13,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6014 to 5983. [2022-12-14 06:51:13,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5983 states, 5964 states have (on average 1.2766599597585513) internal successors, (7614), 5982 states have internal predecessors, (7614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:51:13,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5983 states to 5983 states and 7614 transitions. [2022-12-14 06:51:13,303 INFO L78 Accepts]: Start accepts. Automaton has 5983 states and 7614 transitions. Word has length 78 [2022-12-14 06:51:13,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:51:13,303 INFO L495 AbstractCegarLoop]: Abstraction has 5983 states and 7614 transitions. [2022-12-14 06:51:13,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:51:13,303 INFO L276 IsEmpty]: Start isEmpty. Operand 5983 states and 7614 transitions. [2022-12-14 06:51:13,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 06:51:13,309 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:51:13,309 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] [2022-12-14 06:51:13,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:51:13,309 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:51:13,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:51:13,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1232150739, now seen corresponding path program 1 times [2022-12-14 06:51:13,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:51:13,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974468930] [2022-12-14 06:51:13,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:13,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:51:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:13,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:51:13,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:13,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974468930] [2022-12-14 06:51:13,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974468930] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:51:13,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:51:13,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:51:13,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403230418] [2022-12-14 06:51:13,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:51:13,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:51:13,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:51:13,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:51:13,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:51:13,468 INFO L87 Difference]: Start difference. First operand 5983 states and 7614 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 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) [2022-12-14 06:51:15,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:51:15,805 INFO L93 Difference]: Finished difference Result 10922 states and 13884 transitions. [2022-12-14 06:51:15,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:51:15,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 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 [2022-12-14 06:51:15,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:51:15,820 INFO L225 Difference]: With dead ends: 10922 [2022-12-14 06:51:15,820 INFO L226 Difference]: Without dead ends: 7480 [2022-12-14 06:51:15,824 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 [2022-12-14 06:51:15,825 INFO L413 NwaCegarLoop]: 2038 mSDtfsCounter, 15086 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 2824 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15086 SdHoareTripleChecker+Valid, 2762 SdHoareTripleChecker+Invalid, 2870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:51:15,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15086 Valid, 2762 Invalid, 2870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2824 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-14 06:51:15,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7480 states. [2022-12-14 06:51:16,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7480 to 7460. [2022-12-14 06:51:16,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7460 states, 7441 states have (on average 1.275097433140707) internal successors, (9488), 7459 states have internal predecessors, (9488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:51:16,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7460 states to 7460 states and 9488 transitions. [2022-12-14 06:51:16,073 INFO L78 Accepts]: Start accepts. Automaton has 7460 states and 9488 transitions. Word has length 79 [2022-12-14 06:51:16,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:51:16,074 INFO L495 AbstractCegarLoop]: Abstraction has 7460 states and 9488 transitions. [2022-12-14 06:51:16,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 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) [2022-12-14 06:51:16,074 INFO L276 IsEmpty]: Start isEmpty. Operand 7460 states and 9488 transitions. [2022-12-14 06:51:16,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 06:51:16,080 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:51:16,080 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:51:16,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:51:16,080 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:51:16,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:51:16,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1538274182, now seen corresponding path program 1 times [2022-12-14 06:51:16,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:51:16,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481371088] [2022-12-14 06:51:16,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:16,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:51:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:16,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:51:16,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:16,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481371088] [2022-12-14 06:51:16,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481371088] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:51:16,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:51:16,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:51:16,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893976243] [2022-12-14 06:51:16,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:51:16,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:51:16,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:51:16,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:51:16,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:51:16,440 INFO L87 Difference]: Start difference. First operand 7460 states and 9488 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) [2022-12-14 06:51:20,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:51:20,381 INFO L93 Difference]: Finished difference Result 8496 states and 10801 transitions. [2022-12-14 06:51:20,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 06:51:20,382 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 [2022-12-14 06:51:20,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:51:20,400 INFO L225 Difference]: With dead ends: 8496 [2022-12-14 06:51:20,400 INFO L226 Difference]: Without dead ends: 8490 [2022-12-14 06:51:20,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-12-14 06:51:20,403 INFO L413 NwaCegarLoop]: 2067 mSDtfsCounter, 9016 mSDsluCounter, 7719 mSDsCounter, 0 mSdLazyCounter, 9497 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9016 SdHoareTripleChecker+Valid, 9786 SdHoareTripleChecker+Invalid, 9525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 9497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:51:20,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9016 Valid, 9786 Invalid, 9525 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 9497 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 06:51:20,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8490 states. [2022-12-14 06:51:20,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8490 to 7460. [2022-12-14 06:51:20,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7460 states, 7441 states have (on average 1.2749630426018008) internal successors, (9487), 7459 states have internal predecessors, (9487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:51:20,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7460 states to 7460 states and 9487 transitions. [2022-12-14 06:51:20,661 INFO L78 Accepts]: Start accepts. Automaton has 7460 states and 9487 transitions. Word has length 79 [2022-12-14 06:51:20,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:51:20,662 INFO L495 AbstractCegarLoop]: Abstraction has 7460 states and 9487 transitions. [2022-12-14 06:51:20,662 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) [2022-12-14 06:51:20,662 INFO L276 IsEmpty]: Start isEmpty. Operand 7460 states and 9487 transitions. [2022-12-14 06:51:20,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-14 06:51:20,668 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:51:20,668 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] [2022-12-14 06:51:20,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 06:51:20,668 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:51:20,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:51:20,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1448863563, now seen corresponding path program 1 times [2022-12-14 06:51:20,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:51:20,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226798603] [2022-12-14 06:51:20,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:20,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:51:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:20,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:51:20,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:20,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226798603] [2022-12-14 06:51:20,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226798603] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:51:20,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:51:20,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:51:20,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158201044] [2022-12-14 06:51:20,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:51:20,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:51:20,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:51:20,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:51:20,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:51:20,804 INFO L87 Difference]: Start difference. First operand 7460 states and 9487 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 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) [2022-12-14 06:51:23,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:51:23,196 INFO L93 Difference]: Finished difference Result 15041 states and 19076 transitions. [2022-12-14 06:51:23,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:51:23,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 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 [2022-12-14 06:51:23,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:51:23,235 INFO L225 Difference]: With dead ends: 15041 [2022-12-14 06:51:23,235 INFO L226 Difference]: Without dead ends: 10250 [2022-12-14 06:51:23,239 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 [2022-12-14 06:51:23,240 INFO L413 NwaCegarLoop]: 1936 mSDtfsCounter, 13944 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 2581 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13944 SdHoareTripleChecker+Valid, 2595 SdHoareTripleChecker+Invalid, 2680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 06:51:23,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13944 Valid, 2595 Invalid, 2680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2581 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 06:51:23,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10250 states. [2022-12-14 06:51:23,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10250 to 10222. [2022-12-14 06:51:23,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10222 states, 10203 states have (on average 1.2509065960991865) internal successors, (12763), 10221 states have internal predecessors, (12763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:51:23,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10222 states to 10222 states and 12763 transitions. [2022-12-14 06:51:23,709 INFO L78 Accepts]: Start accepts. Automaton has 10222 states and 12763 transitions. Word has length 79 [2022-12-14 06:51:23,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:51:23,709 INFO L495 AbstractCegarLoop]: Abstraction has 10222 states and 12763 transitions. [2022-12-14 06:51:23,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 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) [2022-12-14 06:51:23,709 INFO L276 IsEmpty]: Start isEmpty. Operand 10222 states and 12763 transitions. [2022-12-14 06:51:23,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 06:51:23,715 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:51:23,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:51:23,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 06:51:23,715 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:51:23,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:51:23,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1852629809, now seen corresponding path program 1 times [2022-12-14 06:51:23,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:51:23,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885214549] [2022-12-14 06:51:23,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:23,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:51:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:24,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:51:24,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:24,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885214549] [2022-12-14 06:51:24,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885214549] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:51:24,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:51:24,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 06:51:24,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912388316] [2022-12-14 06:51:24,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:51:24,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 06:51:24,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:51:24,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 06:51:24,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:51:24,299 INFO L87 Difference]: Start difference. First operand 10222 states and 12763 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) [2022-12-14 06:51:27,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:51:27,530 INFO L93 Difference]: Finished difference Result 18384 states and 23858 transitions. [2022-12-14 06:51:27,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 06:51:27,531 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 [2022-12-14 06:51:27,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:51:27,574 INFO L225 Difference]: With dead ends: 18384 [2022-12-14 06:51:27,575 INFO L226 Difference]: Without dead ends: 17149 [2022-12-14 06:51:27,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2022-12-14 06:51:27,578 INFO L413 NwaCegarLoop]: 4315 mSDtfsCounter, 21039 mSDsluCounter, 17763 mSDsCounter, 0 mSdLazyCounter, 2751 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21039 SdHoareTripleChecker+Valid, 22078 SdHoareTripleChecker+Invalid, 2779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:51:27,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21039 Valid, 22078 Invalid, 2779 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 2751 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 06:51:27,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17149 states. [2022-12-14 06:51:28,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17149 to 10141. [2022-12-14 06:51:28,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 10123 states have (on average 1.2506174059073398) internal successors, (12660), 10140 states have internal predecessors, (12660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:51:28,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 12660 transitions. [2022-12-14 06:51:28,233 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 12660 transitions. Word has length 80 [2022-12-14 06:51:28,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:51:28,233 INFO L495 AbstractCegarLoop]: Abstraction has 10141 states and 12660 transitions. [2022-12-14 06:51:28,233 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) [2022-12-14 06:51:28,233 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 12660 transitions. [2022-12-14 06:51:28,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 06:51:28,238 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:51:28,238 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] [2022-12-14 06:51:28,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 06:51:28,239 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:51:28,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:51:28,239 INFO L85 PathProgramCache]: Analyzing trace with hash 345318540, now seen corresponding path program 1 times [2022-12-14 06:51:28,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:51:28,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40768662] [2022-12-14 06:51:28,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:28,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:51:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:28,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:51:28,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:28,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40768662] [2022-12-14 06:51:28,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40768662] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:51:28,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:51:28,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 06:51:28,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517474651] [2022-12-14 06:51:28,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:51:28,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:51:28,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:51:28,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:51:28,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:51:28,603 INFO L87 Difference]: Start difference. First operand 10141 states and 12660 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 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) [2022-12-14 06:51:35,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:51:35,229 INFO L93 Difference]: Finished difference Result 17277 states and 22097 transitions. [2022-12-14 06:51:35,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-14 06:51:35,230 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 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 [2022-12-14 06:51:35,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:51:35,246 INFO L225 Difference]: With dead ends: 17277 [2022-12-14 06:51:35,246 INFO L226 Difference]: Without dead ends: 16002 [2022-12-14 06:51:35,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2022-12-14 06:51:35,250 INFO L413 NwaCegarLoop]: 2075 mSDtfsCounter, 14761 mSDsluCounter, 8847 mSDsCounter, 0 mSdLazyCounter, 11746 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14761 SdHoareTripleChecker+Valid, 10922 SdHoareTripleChecker+Invalid, 11754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:51:35,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14761 Valid, 10922 Invalid, 11754 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 11746 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-12-14 06:51:35,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16002 states. [2022-12-14 06:51:36,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16002 to 10148. [2022-12-14 06:51:36,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10148 states, 10130 states have (on average 1.2504442250740375) internal successors, (12667), 10147 states have internal predecessors, (12667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:51:36,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10148 states to 10148 states and 12667 transitions. [2022-12-14 06:51:36,072 INFO L78 Accepts]: Start accepts. Automaton has 10148 states and 12667 transitions. Word has length 80 [2022-12-14 06:51:36,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:51:36,073 INFO L495 AbstractCegarLoop]: Abstraction has 10148 states and 12667 transitions. [2022-12-14 06:51:36,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 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) [2022-12-14 06:51:36,073 INFO L276 IsEmpty]: Start isEmpty. Operand 10148 states and 12667 transitions. [2022-12-14 06:51:36,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 06:51:36,085 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:51:36,085 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] [2022-12-14 06:51:36,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 06:51:36,086 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:51:36,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:51:36,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1931324810, now seen corresponding path program 1 times [2022-12-14 06:51:36,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:51:36,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208044515] [2022-12-14 06:51:36,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:36,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:51:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:36,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:51:36,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:36,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208044515] [2022-12-14 06:51:36,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208044515] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:51:36,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:51:36,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:51:36,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615740411] [2022-12-14 06:51:36,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:51:36,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:51:36,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:51:36,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:51:36,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:51:36,241 INFO L87 Difference]: Start difference. First operand 10148 states and 12667 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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) [2022-12-14 06:51:39,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:51:39,567 INFO L93 Difference]: Finished difference Result 22649 states and 28591 transitions. [2022-12-14 06:51:39,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:51:39,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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 [2022-12-14 06:51:39,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:51:39,582 INFO L225 Difference]: With dead ends: 22649 [2022-12-14 06:51:39,583 INFO L226 Difference]: Without dead ends: 14755 [2022-12-14 06:51:39,590 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 [2022-12-14 06:51:39,591 INFO L413 NwaCegarLoop]: 2075 mSDtfsCounter, 14971 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 2700 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14971 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 2737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:51:39,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14971 Valid, 2895 Invalid, 2737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2700 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 06:51:39,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14755 states. [2022-12-14 06:51:40,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14755 to 14731. [2022-12-14 06:51:40,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14731 states, 14713 states have (on average 1.2520220213416706) internal successors, (18421), 14730 states have internal predecessors, (18421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:51:40,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14731 states to 14731 states and 18421 transitions. [2022-12-14 06:51:40,906 INFO L78 Accepts]: Start accepts. Automaton has 14731 states and 18421 transitions. Word has length 81 [2022-12-14 06:51:40,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:51:40,906 INFO L495 AbstractCegarLoop]: Abstraction has 14731 states and 18421 transitions. [2022-12-14 06:51:40,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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) [2022-12-14 06:51:40,906 INFO L276 IsEmpty]: Start isEmpty. Operand 14731 states and 18421 transitions. [2022-12-14 06:51:40,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 06:51:40,913 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:51:40,913 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] [2022-12-14 06:51:40,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 06:51:40,913 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:51:40,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:51:40,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1417764063, now seen corresponding path program 1 times [2022-12-14 06:51:40,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:51:40,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945447320] [2022-12-14 06:51:40,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:40,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:51:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:40,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:51:40,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:40,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945447320] [2022-12-14 06:51:40,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945447320] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:51:40,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:51:40,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:51:40,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274243593] [2022-12-14 06:51:40,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:51:40,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:51:40,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:51:40,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:51:40,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:51:40,985 INFO L87 Difference]: Start difference. First operand 14731 states and 18421 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2022-12-14 06:51:43,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:51:43,462 INFO L93 Difference]: Finished difference Result 28945 states and 36330 transitions. [2022-12-14 06:51:43,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:51:43,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 [2022-12-14 06:51:43,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:51:43,479 INFO L225 Difference]: With dead ends: 28945 [2022-12-14 06:51:43,479 INFO L226 Difference]: Without dead ends: 17843 [2022-12-14 06:51:43,488 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 [2022-12-14 06:51:43,488 INFO L413 NwaCegarLoop]: 3709 mSDtfsCounter, 3757 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3757 SdHoareTripleChecker+Valid, 4669 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:51:43,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3757 Valid, 4669 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 06:51:43,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17843 states. [2022-12-14 06:51:45,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17843 to 17814. [2022-12-14 06:51:45,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17814 states, 17796 states have (on average 1.2420206788042256) internal successors, (22103), 17813 states have internal predecessors, (22103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:51:45,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17814 states to 17814 states and 22103 transitions. [2022-12-14 06:51:45,276 INFO L78 Accepts]: Start accepts. Automaton has 17814 states and 22103 transitions. Word has length 81 [2022-12-14 06:51:45,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:51:45,276 INFO L495 AbstractCegarLoop]: Abstraction has 17814 states and 22103 transitions. [2022-12-14 06:51:45,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2022-12-14 06:51:45,277 INFO L276 IsEmpty]: Start isEmpty. Operand 17814 states and 22103 transitions. [2022-12-14 06:51:45,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-14 06:51:45,283 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:51:45,283 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] [2022-12-14 06:51:45,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 06:51:45,284 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:51:45,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:51:45,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1047514158, now seen corresponding path program 1 times [2022-12-14 06:51:45,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:51:45,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84577173] [2022-12-14 06:51:45,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:45,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:51:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:45,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:51:45,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:45,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84577173] [2022-12-14 06:51:45,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84577173] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:51:45,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:51:45,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 06:51:45,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724307518] [2022-12-14 06:51:45,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:51:45,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 06:51:45,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:51:45,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 06:51:45,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:51:45,768 INFO L87 Difference]: Start difference. First operand 17814 states and 22103 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:51:53,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:51:53,250 INFO L93 Difference]: Finished difference Result 27046 states and 34540 transitions. [2022-12-14 06:51:53,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 06:51:53,251 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-12-14 06:51:53,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:51:53,277 INFO L225 Difference]: With dead ends: 27046 [2022-12-14 06:51:53,277 INFO L226 Difference]: Without dead ends: 27042 [2022-12-14 06:51:53,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2022-12-14 06:51:53,283 INFO L413 NwaCegarLoop]: 3842 mSDtfsCounter, 19467 mSDsluCounter, 14185 mSDsCounter, 0 mSdLazyCounter, 2972 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19467 SdHoareTripleChecker+Valid, 18027 SdHoareTripleChecker+Invalid, 3010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 06:51:53,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19467 Valid, 18027 Invalid, 3010 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 2972 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 06:51:53,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27042 states. [2022-12-14 06:51:55,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27042 to 17810. [2022-12-14 06:51:55,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17810 states, 17793 states have (on average 1.2420052829764514) internal successors, (22099), 17809 states have internal predecessors, (22099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:51:55,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17810 states to 17810 states and 22099 transitions. [2022-12-14 06:51:55,785 INFO L78 Accepts]: Start accepts. Automaton has 17810 states and 22099 transitions. Word has length 81 [2022-12-14 06:51:55,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:51:55,785 INFO L495 AbstractCegarLoop]: Abstraction has 17810 states and 22099 transitions. [2022-12-14 06:51:55,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:51:55,785 INFO L276 IsEmpty]: Start isEmpty. Operand 17810 states and 22099 transitions. [2022-12-14 06:51:55,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-14 06:51:55,796 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:51:55,796 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] [2022-12-14 06:51:55,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 06:51:55,796 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:51:55,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:51:55,796 INFO L85 PathProgramCache]: Analyzing trace with hash 145335399, now seen corresponding path program 1 times [2022-12-14 06:51:55,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:51:55,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700881250] [2022-12-14 06:51:55,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:51:55,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:51:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:51:56,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:51:56,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:51:56,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700881250] [2022-12-14 06:51:56,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700881250] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:51:56,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:51:56,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:51:56,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930524759] [2022-12-14 06:51:56,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:51:56,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:51:56,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:51:56,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:51:56,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:51:56,140 INFO L87 Difference]: Start difference. First operand 17810 states and 22099 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) [2022-12-14 06:52:02,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:52:02,995 INFO L93 Difference]: Finished difference Result 22309 states and 27722 transitions. [2022-12-14 06:52:02,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 06:52:02,996 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 [2022-12-14 06:52:02,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:52:03,016 INFO L225 Difference]: With dead ends: 22309 [2022-12-14 06:52:03,016 INFO L226 Difference]: Without dead ends: 22300 [2022-12-14 06:52:03,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2022-12-14 06:52:03,019 INFO L413 NwaCegarLoop]: 2024 mSDtfsCounter, 12479 mSDsluCounter, 7724 mSDsCounter, 0 mSdLazyCounter, 9368 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12479 SdHoareTripleChecker+Valid, 9748 SdHoareTripleChecker+Invalid, 9404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 9368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:52:03,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12479 Valid, 9748 Invalid, 9404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 9368 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 06:52:03,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22300 states. [2022-12-14 06:52:05,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22300 to 17810. [2022-12-14 06:52:05,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17810 states, 17793 states have (on average 1.2419490810993088) internal successors, (22098), 17809 states have internal predecessors, (22098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:52:05,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17810 states to 17810 states and 22098 transitions. [2022-12-14 06:52:05,507 INFO L78 Accepts]: Start accepts. Automaton has 17810 states and 22098 transitions. Word has length 82 [2022-12-14 06:52:05,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:52:05,507 INFO L495 AbstractCegarLoop]: Abstraction has 17810 states and 22098 transitions. [2022-12-14 06:52:05,507 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) [2022-12-14 06:52:05,507 INFO L276 IsEmpty]: Start isEmpty. Operand 17810 states and 22098 transitions. [2022-12-14 06:52:05,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-14 06:52:05,514 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:52:05,514 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] [2022-12-14 06:52:05,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 06:52:05,514 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:52:05,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:52:05,515 INFO L85 PathProgramCache]: Analyzing trace with hash 281132209, now seen corresponding path program 1 times [2022-12-14 06:52:05,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:52:05,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103523734] [2022-12-14 06:52:05,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:52:05,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:52:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:52:05,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:52:05,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:52:05,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103523734] [2022-12-14 06:52:05,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103523734] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:52:05,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:52:05,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 06:52:05,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289676530] [2022-12-14 06:52:05,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:52:05,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:52:05,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:52:05,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:52:05,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:52:05,768 INFO L87 Difference]: Start difference. First operand 17810 states and 22098 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 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) [2022-12-14 06:52:17,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:52:17,639 INFO L93 Difference]: Finished difference Result 33570 states and 43142 transitions. [2022-12-14 06:52:17,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-14 06:52:17,640 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 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 [2022-12-14 06:52:17,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:52:17,670 INFO L225 Difference]: With dead ends: 33570 [2022-12-14 06:52:17,670 INFO L226 Difference]: Without dead ends: 30142 [2022-12-14 06:52:17,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=176, Invalid=474, Unknown=0, NotChecked=0, Total=650 [2022-12-14 06:52:17,678 INFO L413 NwaCegarLoop]: 2222 mSDtfsCounter, 18690 mSDsluCounter, 7960 mSDsCounter, 0 mSdLazyCounter, 9673 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18690 SdHoareTripleChecker+Valid, 10182 SdHoareTripleChecker+Invalid, 9731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 9673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:52:17,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18690 Valid, 10182 Invalid, 9731 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 9673 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-12-14 06:52:17,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30142 states. [2022-12-14 06:52:20,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30142 to 17780. [2022-12-14 06:52:20,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17780 states, 17763 states have (on average 1.2420762258627485) internal successors, (22063), 17779 states have internal predecessors, (22063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:52:20,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17780 states to 17780 states and 22063 transitions. [2022-12-14 06:52:20,886 INFO L78 Accepts]: Start accepts. Automaton has 17780 states and 22063 transitions. Word has length 82 [2022-12-14 06:52:20,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:52:20,886 INFO L495 AbstractCegarLoop]: Abstraction has 17780 states and 22063 transitions. [2022-12-14 06:52:20,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 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) [2022-12-14 06:52:20,886 INFO L276 IsEmpty]: Start isEmpty. Operand 17780 states and 22063 transitions. [2022-12-14 06:52:20,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 06:52:20,893 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:52:20,893 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] [2022-12-14 06:52:20,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 06:52:20,893 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:52:20,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:52:20,893 INFO L85 PathProgramCache]: Analyzing trace with hash 334995124, now seen corresponding path program 1 times [2022-12-14 06:52:20,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:52:20,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252000077] [2022-12-14 06:52:20,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:52:20,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:52:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:52:21,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:52:21,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:52:21,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252000077] [2022-12-14 06:52:21,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252000077] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:52:21,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:52:21,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 06:52:21,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967295047] [2022-12-14 06:52:21,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:52:21,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 06:52:21,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:52:21,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 06:52:21,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-14 06:52:21,343 INFO L87 Difference]: Start difference. First operand 17780 states and 22063 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 12 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) [2022-12-14 06:52:39,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:52:39,677 INFO L93 Difference]: Finished difference Result 46890 states and 61035 transitions. [2022-12-14 06:52:39,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-14 06:52:39,677 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 12 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 [2022-12-14 06:52:39,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:52:39,725 INFO L225 Difference]: With dead ends: 46890 [2022-12-14 06:52:39,725 INFO L226 Difference]: Without dead ends: 46878 [2022-12-14 06:52:39,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=319, Invalid=1241, Unknown=0, NotChecked=0, Total=1560 [2022-12-14 06:52:39,734 INFO L413 NwaCegarLoop]: 4569 mSDtfsCounter, 24600 mSDsluCounter, 31004 mSDsCounter, 0 mSdLazyCounter, 4809 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24600 SdHoareTripleChecker+Valid, 35573 SdHoareTripleChecker+Invalid, 4847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 4809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:52:39,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24600 Valid, 35573 Invalid, 4847 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 4809 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 06:52:39,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46878 states. [2022-12-14 06:52:43,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46878 to 17773. [2022-12-14 06:52:43,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17773 states, 17756 states have (on average 1.242115341293084) internal successors, (22055), 17772 states have internal predecessors, (22055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:52:43,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17773 states to 17773 states and 22055 transitions. [2022-12-14 06:52:43,559 INFO L78 Accepts]: Start accepts. Automaton has 17773 states and 22055 transitions. Word has length 83 [2022-12-14 06:52:43,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:52:43,559 INFO L495 AbstractCegarLoop]: Abstraction has 17773 states and 22055 transitions. [2022-12-14 06:52:43,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 12 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) [2022-12-14 06:52:43,559 INFO L276 IsEmpty]: Start isEmpty. Operand 17773 states and 22055 transitions. [2022-12-14 06:52:43,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 06:52:43,566 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:52:43,566 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] [2022-12-14 06:52:43,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 06:52:43,567 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:52:43,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:52:43,567 INFO L85 PathProgramCache]: Analyzing trace with hash -116911058, now seen corresponding path program 1 times [2022-12-14 06:52:43,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:52:43,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735431448] [2022-12-14 06:52:43,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:52:43,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:52:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:52:43,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:52:43,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:52:43,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735431448] [2022-12-14 06:52:43,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735431448] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:52:43,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:52:43,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 06:52:43,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790806192] [2022-12-14 06:52:43,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:52:43,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 06:52:43,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:52:43,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 06:52:43,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:52:43,975 INFO L87 Difference]: Start difference. First operand 17773 states and 22055 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) [2022-12-14 06:52:55,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:52:55,048 INFO L93 Difference]: Finished difference Result 29191 states and 37846 transitions. [2022-12-14 06:52:55,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 06:52:55,049 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 [2022-12-14 06:52:55,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:52:55,075 INFO L225 Difference]: With dead ends: 29191 [2022-12-14 06:52:55,075 INFO L226 Difference]: Without dead ends: 25760 [2022-12-14 06:52:55,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2022-12-14 06:52:55,082 INFO L413 NwaCegarLoop]: 3864 mSDtfsCounter, 13065 mSDsluCounter, 15953 mSDsCounter, 0 mSdLazyCounter, 2341 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13065 SdHoareTripleChecker+Valid, 19817 SdHoareTripleChecker+Invalid, 2343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:52:55,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13065 Valid, 19817 Invalid, 2343 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2341 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-14 06:52:55,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25760 states. [2022-12-14 06:52:59,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25760 to 17736. [2022-12-14 06:52:59,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17736 states, 17720 states have (on average 1.2423250564334085) internal successors, (22014), 17735 states have internal predecessors, (22014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:52:59,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17736 states to 17736 states and 22014 transitions. [2022-12-14 06:52:59,326 INFO L78 Accepts]: Start accepts. Automaton has 17736 states and 22014 transitions. Word has length 83 [2022-12-14 06:52:59,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:52:59,326 INFO L495 AbstractCegarLoop]: Abstraction has 17736 states and 22014 transitions. [2022-12-14 06:52:59,326 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) [2022-12-14 06:52:59,326 INFO L276 IsEmpty]: Start isEmpty. Operand 17736 states and 22014 transitions. [2022-12-14 06:52:59,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 06:52:59,333 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:52:59,333 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] [2022-12-14 06:52:59,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 06:52:59,333 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:52:59,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:52:59,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1102446847, now seen corresponding path program 1 times [2022-12-14 06:52:59,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:52:59,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018289655] [2022-12-14 06:52:59,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:52:59,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:52:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:52:59,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:52:59,583 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:52:59,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018289655] [2022-12-14 06:52:59,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018289655] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:52:59,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:52:59,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 06:52:59,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995574958] [2022-12-14 06:52:59,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:52:59,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:52:59,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:52:59,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:52:59,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:52:59,584 INFO L87 Difference]: Start difference. First operand 17736 states and 22014 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:11,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:53:11,198 INFO L93 Difference]: Finished difference Result 23033 states and 29287 transitions. [2022-12-14 06:53:11,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 06:53:11,199 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-12-14 06:53:11,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:53:11,214 INFO L225 Difference]: With dead ends: 23033 [2022-12-14 06:53:11,215 INFO L226 Difference]: Without dead ends: 19339 [2022-12-14 06:53:11,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2022-12-14 06:53:11,220 INFO L413 NwaCegarLoop]: 1976 mSDtfsCounter, 14032 mSDsluCounter, 8306 mSDsCounter, 0 mSdLazyCounter, 10785 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14032 SdHoareTripleChecker+Valid, 10282 SdHoareTripleChecker+Invalid, 10791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 10785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:53:11,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14032 Valid, 10282 Invalid, 10791 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 10785 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-12-14 06:53:11,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19339 states. [2022-12-14 06:53:15,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19339 to 17442. [2022-12-14 06:53:15,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17442 states, 17426 states have (on average 1.242970274302766) internal successors, (21660), 17441 states have internal predecessors, (21660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:15,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17442 states to 17442 states and 21660 transitions. [2022-12-14 06:53:15,489 INFO L78 Accepts]: Start accepts. Automaton has 17442 states and 21660 transitions. Word has length 83 [2022-12-14 06:53:15,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:53:15,489 INFO L495 AbstractCegarLoop]: Abstraction has 17442 states and 21660 transitions. [2022-12-14 06:53:15,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:15,490 INFO L276 IsEmpty]: Start isEmpty. Operand 17442 states and 21660 transitions. [2022-12-14 06:53:15,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 06:53:15,497 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:53:15,497 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] [2022-12-14 06:53:15,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 06:53:15,497 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:53:15,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:53:15,498 INFO L85 PathProgramCache]: Analyzing trace with hash -259980893, now seen corresponding path program 1 times [2022-12-14 06:53:15,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:53:15,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322183256] [2022-12-14 06:53:15,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:53:15,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:53:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:53:15,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:53:15,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:53:15,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322183256] [2022-12-14 06:53:15,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322183256] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:53:15,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:53:15,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 06:53:15,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120229342] [2022-12-14 06:53:15,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:53:15,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:53:15,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:53:15,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:53:15,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:53:15,746 INFO L87 Difference]: Start difference. First operand 17442 states and 21660 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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) [2022-12-14 06:53:30,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:53:30,982 INFO L93 Difference]: Finished difference Result 31082 states and 39749 transitions. [2022-12-14 06:53:30,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-14 06:53:30,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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 [2022-12-14 06:53:30,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:53:31,012 INFO L225 Difference]: With dead ends: 31082 [2022-12-14 06:53:31,012 INFO L226 Difference]: Without dead ends: 28622 [2022-12-14 06:53:31,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=176, Invalid=474, Unknown=0, NotChecked=0, Total=650 [2022-12-14 06:53:31,019 INFO L413 NwaCegarLoop]: 2145 mSDtfsCounter, 18412 mSDsluCounter, 7735 mSDsCounter, 0 mSdLazyCounter, 9413 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18412 SdHoareTripleChecker+Valid, 9880 SdHoareTripleChecker+Invalid, 9470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 9413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:53:31,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18412 Valid, 9880 Invalid, 9470 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 9413 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-12-14 06:53:31,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28622 states. [2022-12-14 06:53:35,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28622 to 17442. [2022-12-14 06:53:35,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17442 states, 17426 states have (on average 1.2429128887868701) internal successors, (21659), 17441 states have internal predecessors, (21659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:35,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17442 states to 17442 states and 21659 transitions. [2022-12-14 06:53:35,515 INFO L78 Accepts]: Start accepts. Automaton has 17442 states and 21659 transitions. Word has length 84 [2022-12-14 06:53:35,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:53:35,516 INFO L495 AbstractCegarLoop]: Abstraction has 17442 states and 21659 transitions. [2022-12-14 06:53:35,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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) [2022-12-14 06:53:35,516 INFO L276 IsEmpty]: Start isEmpty. Operand 17442 states and 21659 transitions. [2022-12-14 06:53:35,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 06:53:35,524 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:53:35,524 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] [2022-12-14 06:53:35,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 06:53:35,524 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:53:35,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:53:35,524 INFO L85 PathProgramCache]: Analyzing trace with hash -659144821, now seen corresponding path program 1 times [2022-12-14 06:53:35,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:53:35,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283769060] [2022-12-14 06:53:35,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:53:35,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:53:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:53:35,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:53:35,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:53:35,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283769060] [2022-12-14 06:53:35,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283769060] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:53:35,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:53:35,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:53:35,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393206502] [2022-12-14 06:53:35,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:53:35,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:53:35,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:53:35,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:53:35,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:53:35,726 INFO L87 Difference]: Start difference. First operand 17442 states and 21659 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:48,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:53:48,639 INFO L93 Difference]: Finished difference Result 24220 states and 30396 transitions. [2022-12-14 06:53:48,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 06:53:48,640 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-12-14 06:53:48,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:53:48,661 INFO L225 Difference]: With dead ends: 24220 [2022-12-14 06:53:48,661 INFO L226 Difference]: Without dead ends: 24209 [2022-12-14 06:53:48,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-12-14 06:53:48,665 INFO L413 NwaCegarLoop]: 2126 mSDtfsCounter, 14955 mSDsluCounter, 6671 mSDsCounter, 0 mSdLazyCounter, 8778 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14955 SdHoareTripleChecker+Valid, 8797 SdHoareTripleChecker+Invalid, 8839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 8778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-12-14 06:53:48,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14955 Valid, 8797 Invalid, 8839 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 8778 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-12-14 06:53:48,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24209 states. [2022-12-14 06:53:53,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24209 to 17442. [2022-12-14 06:53:53,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17442 states, 17426 states have (on average 1.2428555032709745) internal successors, (21658), 17441 states have internal predecessors, (21658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:53,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17442 states to 17442 states and 21658 transitions. [2022-12-14 06:53:53,304 INFO L78 Accepts]: Start accepts. Automaton has 17442 states and 21658 transitions. Word has length 84 [2022-12-14 06:53:53,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:53:53,304 INFO L495 AbstractCegarLoop]: Abstraction has 17442 states and 21658 transitions. [2022-12-14 06:53:53,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:53,304 INFO L276 IsEmpty]: Start isEmpty. Operand 17442 states and 21658 transitions. [2022-12-14 06:53:53,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 06:53:53,312 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:53:53,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:53:53,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 06:53:53,312 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:53:53,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:53:53,312 INFO L85 PathProgramCache]: Analyzing trace with hash -171382137, now seen corresponding path program 1 times [2022-12-14 06:53:53,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:53:53,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359698093] [2022-12-14 06:53:53,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:53:53,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:53:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:53:53,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:53:53,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:53:53,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359698093] [2022-12-14 06:53:53,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359698093] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:53:53,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:53:53,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:53:53,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314998182] [2022-12-14 06:53:53,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:53:53,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:53:53,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:53:53,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:53:53,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:53:53,371 INFO L87 Difference]: Start difference. First operand 17442 states and 21658 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:53:58,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:53:58,757 INFO L93 Difference]: Finished difference Result 25325 states and 31961 transitions. [2022-12-14 06:53:58,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:53:58,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-12-14 06:53:58,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:53:58,772 INFO L225 Difference]: With dead ends: 25325 [2022-12-14 06:53:58,772 INFO L226 Difference]: Without dead ends: 15431 [2022-12-14 06:53:58,779 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 [2022-12-14 06:53:58,780 INFO L413 NwaCegarLoop]: 2793 mSDtfsCounter, 2763 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2763 SdHoareTripleChecker+Valid, 3559 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:53:58,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2763 Valid, 3559 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:53:58,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15431 states. [2022-12-14 06:54:03,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15431 to 15417. [2022-12-14 06:54:03,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15417 states, 15405 states have (on average 1.258033106134372) internal successors, (19380), 15416 states have internal predecessors, (19380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:03,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15417 states to 15417 states and 19380 transitions. [2022-12-14 06:54:03,940 INFO L78 Accepts]: Start accepts. Automaton has 15417 states and 19380 transitions. Word has length 84 [2022-12-14 06:54:03,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:54:03,940 INFO L495 AbstractCegarLoop]: Abstraction has 15417 states and 19380 transitions. [2022-12-14 06:54:03,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:03,940 INFO L276 IsEmpty]: Start isEmpty. Operand 15417 states and 19380 transitions. [2022-12-14 06:54:03,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 06:54:03,946 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:54:03,946 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] [2022-12-14 06:54:03,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 06:54:03,946 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:54:03,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:54:03,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1017648630, now seen corresponding path program 1 times [2022-12-14 06:54:03,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:54:03,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602030684] [2022-12-14 06:54:03,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:54:03,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:54:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:54:04,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:54:04,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:54:04,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602030684] [2022-12-14 06:54:04,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602030684] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:54:04,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:54:04,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:54:04,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857278243] [2022-12-14 06:54:04,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:54:04,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:54:04,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:54:04,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:54:04,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:54:04,176 INFO L87 Difference]: Start difference. First operand 15417 states and 19380 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:18,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:54:18,081 INFO L93 Difference]: Finished difference Result 25760 states and 33094 transitions. [2022-12-14 06:54:18,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 06:54:18,082 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-12-14 06:54:18,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:54:18,102 INFO L225 Difference]: With dead ends: 25760 [2022-12-14 06:54:18,102 INFO L226 Difference]: Without dead ends: 24082 [2022-12-14 06:54:18,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-12-14 06:54:18,108 INFO L413 NwaCegarLoop]: 1605 mSDtfsCounter, 9214 mSDsluCounter, 6189 mSDsCounter, 0 mSdLazyCounter, 7169 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9214 SdHoareTripleChecker+Valid, 7794 SdHoareTripleChecker+Invalid, 7197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 7169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:54:18,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9214 Valid, 7794 Invalid, 7197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 7169 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-14 06:54:18,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24082 states. [2022-12-14 06:54:23,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24082 to 15417. [2022-12-14 06:54:23,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15417 states, 15405 states have (on average 1.2579681921454073) internal successors, (19379), 15416 states have internal predecessors, (19379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:23,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15417 states to 15417 states and 19379 transitions. [2022-12-14 06:54:23,418 INFO L78 Accepts]: Start accepts. Automaton has 15417 states and 19379 transitions. Word has length 84 [2022-12-14 06:54:23,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:54:23,418 INFO L495 AbstractCegarLoop]: Abstraction has 15417 states and 19379 transitions. [2022-12-14 06:54:23,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:23,418 INFO L276 IsEmpty]: Start isEmpty. Operand 15417 states and 19379 transitions. [2022-12-14 06:54:23,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 06:54:23,424 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:54:23,424 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] [2022-12-14 06:54:23,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 06:54:23,424 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:54:23,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:54:23,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1298086344, now seen corresponding path program 1 times [2022-12-14 06:54:23,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:54:23,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898690687] [2022-12-14 06:54:23,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:54:23,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:54:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:54:23,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:54:23,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:54:23,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898690687] [2022-12-14 06:54:23,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898690687] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:54:23,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:54:23,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:54:23,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950528829] [2022-12-14 06:54:23,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:54:23,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:54:23,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:54:23,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:54:23,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:54:23,633 INFO L87 Difference]: Start difference. First operand 15417 states and 19379 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:36,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:54:36,145 INFO L93 Difference]: Finished difference Result 20854 states and 26777 transitions. [2022-12-14 06:54:36,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 06:54:36,146 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-12-14 06:54:36,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:54:36,162 INFO L225 Difference]: With dead ends: 20854 [2022-12-14 06:54:36,162 INFO L226 Difference]: Without dead ends: 19758 [2022-12-14 06:54:36,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-12-14 06:54:36,166 INFO L413 NwaCegarLoop]: 1597 mSDtfsCounter, 6580 mSDsluCounter, 5337 mSDsCounter, 0 mSdLazyCounter, 6334 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6580 SdHoareTripleChecker+Valid, 6934 SdHoareTripleChecker+Invalid, 6361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 6334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 06:54:36,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6580 Valid, 6934 Invalid, 6361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 6334 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 06:54:36,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19758 states. [2022-12-14 06:54:41,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19758 to 15417. [2022-12-14 06:54:41,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15417 states, 15405 states have (on average 1.2579032781564428) internal successors, (19378), 15416 states have internal predecessors, (19378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:41,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15417 states to 15417 states and 19378 transitions. [2022-12-14 06:54:41,463 INFO L78 Accepts]: Start accepts. Automaton has 15417 states and 19378 transitions. Word has length 84 [2022-12-14 06:54:41,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:54:41,463 INFO L495 AbstractCegarLoop]: Abstraction has 15417 states and 19378 transitions. [2022-12-14 06:54:41,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:41,464 INFO L276 IsEmpty]: Start isEmpty. Operand 15417 states and 19378 transitions. [2022-12-14 06:54:41,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-14 06:54:41,469 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:54:41,469 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] [2022-12-14 06:54:41,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 06:54:41,470 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:54:41,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:54:41,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1021711736, now seen corresponding path program 1 times [2022-12-14 06:54:41,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:54:41,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770276979] [2022-12-14 06:54:41,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:54:41,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:54:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:54:41,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:54:41,693 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:54:41,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770276979] [2022-12-14 06:54:41,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770276979] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:54:41,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:54:41,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:54:41,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342697491] [2022-12-14 06:54:41,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:54:41,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:54:41,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:54:41,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:54:41,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:54:41,694 INFO L87 Difference]: Start difference. First operand 15417 states and 19378 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:54:57,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:54:57,625 INFO L93 Difference]: Finished difference Result 28707 states and 37104 transitions. [2022-12-14 06:54:57,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 06:54:57,626 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-12-14 06:54:57,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:54:57,653 INFO L225 Difference]: With dead ends: 28707 [2022-12-14 06:54:57,653 INFO L226 Difference]: Without dead ends: 26066 [2022-12-14 06:54:57,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-12-14 06:54:57,660 INFO L413 NwaCegarLoop]: 1761 mSDtfsCounter, 9307 mSDsluCounter, 6598 mSDsCounter, 0 mSdLazyCounter, 8016 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9307 SdHoareTripleChecker+Valid, 8359 SdHoareTripleChecker+Invalid, 8063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 8016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:54:57,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9307 Valid, 8359 Invalid, 8063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 8016 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 06:54:57,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26066 states. [2022-12-14 06:55:03,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26066 to 15417. [2022-12-14 06:55:03,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15417 states, 15405 states have (on average 1.2578383641674782) internal successors, (19377), 15416 states have internal predecessors, (19377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:55:03,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15417 states to 15417 states and 19377 transitions. [2022-12-14 06:55:03,189 INFO L78 Accepts]: Start accepts. Automaton has 15417 states and 19377 transitions. Word has length 84 [2022-12-14 06:55:03,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:55:03,190 INFO L495 AbstractCegarLoop]: Abstraction has 15417 states and 19377 transitions. [2022-12-14 06:55:03,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:55:03,190 INFO L276 IsEmpty]: Start isEmpty. Operand 15417 states and 19377 transitions. [2022-12-14 06:55:03,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 06:55:03,196 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:55:03,196 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:55:03,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 06:55:03,196 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:55:03,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:55:03,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1746059872, now seen corresponding path program 1 times [2022-12-14 06:55:03,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:55:03,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780631537] [2022-12-14 06:55:03,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:55:03,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:55:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:55:03,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:55:03,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:55:03,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780631537] [2022-12-14 06:55:03,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780631537] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:55:03,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:55:03,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 06:55:03,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719427000] [2022-12-14 06:55:03,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:55:03,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 06:55:03,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:55:03,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 06:55:03,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-14 06:55:03,446 INFO L87 Difference]: Start difference. First operand 15417 states and 19377 transitions. Second operand has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:55:14,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:55:14,428 INFO L93 Difference]: Finished difference Result 20452 states and 26103 transitions. [2022-12-14 06:55:14,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-14 06:55:14,429 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-12-14 06:55:14,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:55:14,444 INFO L225 Difference]: With dead ends: 20452 [2022-12-14 06:55:14,444 INFO L226 Difference]: Without dead ends: 18271 [2022-12-14 06:55:14,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2022-12-14 06:55:14,448 INFO L413 NwaCegarLoop]: 1574 mSDtfsCounter, 13431 mSDsluCounter, 6461 mSDsCounter, 0 mSdLazyCounter, 7824 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13431 SdHoareTripleChecker+Valid, 8035 SdHoareTripleChecker+Invalid, 7899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 7824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:55:14,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13431 Valid, 8035 Invalid, 7899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 7824 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 06:55:14,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18271 states. [2022-12-14 06:55:20,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18271 to 15426. [2022-12-14 06:55:20,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15426 states, 15414 states have (on average 1.2579473206176204) internal successors, (19390), 15425 states have internal predecessors, (19390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:55:20,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15426 states to 15426 states and 19390 transitions. [2022-12-14 06:55:20,030 INFO L78 Accepts]: Start accepts. Automaton has 15426 states and 19390 transitions. Word has length 85 [2022-12-14 06:55:20,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:55:20,030 INFO L495 AbstractCegarLoop]: Abstraction has 15426 states and 19390 transitions. [2022-12-14 06:55:20,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:55:20,030 INFO L276 IsEmpty]: Start isEmpty. Operand 15426 states and 19390 transitions. [2022-12-14 06:55:20,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 06:55:20,036 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:55:20,036 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] [2022-12-14 06:55:20,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 06:55:20,037 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:55:20,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:55:20,037 INFO L85 PathProgramCache]: Analyzing trace with hash 534088540, now seen corresponding path program 1 times [2022-12-14 06:55:20,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:55:20,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845553982] [2022-12-14 06:55:20,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:55:20,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:55:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:55:20,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:55:20,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:55:20,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845553982] [2022-12-14 06:55:20,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845553982] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:55:20,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:55:20,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:55:20,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714033612] [2022-12-14 06:55:20,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:55:20,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:55:20,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:55:20,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:55:20,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:55:20,249 INFO L87 Difference]: Start difference. First operand 15426 states and 19390 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:55:32,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:55:32,783 INFO L93 Difference]: Finished difference Result 22753 states and 29386 transitions. [2022-12-14 06:55:32,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 06:55:32,784 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-12-14 06:55:32,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:55:32,803 INFO L225 Difference]: With dead ends: 22753 [2022-12-14 06:55:32,803 INFO L226 Difference]: Without dead ends: 20574 [2022-12-14 06:55:32,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-12-14 06:55:32,808 INFO L413 NwaCegarLoop]: 1599 mSDtfsCounter, 9372 mSDsluCounter, 5868 mSDsCounter, 0 mSdLazyCounter, 6736 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9372 SdHoareTripleChecker+Valid, 7467 SdHoareTripleChecker+Invalid, 6763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 6736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:55:32,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9372 Valid, 7467 Invalid, 6763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 6736 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 06:55:32,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20574 states. [2022-12-14 06:55:38,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20574 to 15425. [2022-12-14 06:55:38,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15425 states, 15413 states have (on average 1.2578991760202427) internal successors, (19388), 15424 states have internal predecessors, (19388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:55:38,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15425 states to 15425 states and 19388 transitions. [2022-12-14 06:55:38,468 INFO L78 Accepts]: Start accepts. Automaton has 15425 states and 19388 transitions. Word has length 85 [2022-12-14 06:55:38,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:55:38,469 INFO L495 AbstractCegarLoop]: Abstraction has 15425 states and 19388 transitions. [2022-12-14 06:55:38,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:55:38,469 INFO L276 IsEmpty]: Start isEmpty. Operand 15425 states and 19388 transitions. [2022-12-14 06:55:38,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 06:55:38,477 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:55:38,477 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] [2022-12-14 06:55:38,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 06:55:38,478 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:55:38,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:55:38,478 INFO L85 PathProgramCache]: Analyzing trace with hash -609990958, now seen corresponding path program 1 times [2022-12-14 06:55:38,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:55:38,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80121502] [2022-12-14 06:55:38,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:55:38,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:55:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:55:38,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:55:38,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:55:38,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80121502] [2022-12-14 06:55:38,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80121502] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:55:38,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:55:38,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 06:55:38,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636626982] [2022-12-14 06:55:38,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:55:38,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:55:38,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:55:38,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:55:38,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:55:38,678 INFO L87 Difference]: Start difference. First operand 15425 states and 19388 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:55:49,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:55:49,411 INFO L93 Difference]: Finished difference Result 22328 states and 28828 transitions. [2022-12-14 06:55:49,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 06:55:49,412 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-12-14 06:55:49,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:55:49,428 INFO L225 Difference]: With dead ends: 22328 [2022-12-14 06:55:49,428 INFO L226 Difference]: Without dead ends: 19021 [2022-12-14 06:55:49,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 06:55:49,433 INFO L413 NwaCegarLoop]: 1580 mSDtfsCounter, 10881 mSDsluCounter, 4823 mSDsCounter, 0 mSdLazyCounter, 5914 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10881 SdHoareTripleChecker+Valid, 6403 SdHoareTripleChecker+Invalid, 5942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 5914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:55:49,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10881 Valid, 6403 Invalid, 5942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 5914 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 06:55:49,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19021 states. [2022-12-14 06:55:55,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19021 to 15416. [2022-12-14 06:55:55,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15416 states, 15404 states have (on average 1.257855102570761) internal successors, (19376), 15415 states have internal predecessors, (19376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:55:55,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15416 states to 15416 states and 19376 transitions. [2022-12-14 06:55:55,159 INFO L78 Accepts]: Start accepts. Automaton has 15416 states and 19376 transitions. Word has length 85 [2022-12-14 06:55:55,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:55:55,159 INFO L495 AbstractCegarLoop]: Abstraction has 15416 states and 19376 transitions. [2022-12-14 06:55:55,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:55:55,159 INFO L276 IsEmpty]: Start isEmpty. Operand 15416 states and 19376 transitions. [2022-12-14 06:55:55,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 06:55:55,165 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:55:55,165 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] [2022-12-14 06:55:55,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 06:55:55,165 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:55:55,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:55:55,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1552046566, now seen corresponding path program 1 times [2022-12-14 06:55:55,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:55:55,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758661508] [2022-12-14 06:55:55,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:55:55,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:55:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:55:55,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:55:55,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:55:55,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758661508] [2022-12-14 06:55:55,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758661508] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:55:55,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:55:55,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:55:55,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882802620] [2022-12-14 06:55:55,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:55:55,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:55:55,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:55:55,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:55:55,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:55:55,232 INFO L87 Difference]: Start difference. First operand 15416 states and 19376 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:56:05,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:56:05,189 INFO L93 Difference]: Finished difference Result 30394 states and 38990 transitions. [2022-12-14 06:56:05,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:56:05,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-12-14 06:56:05,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:56:05,211 INFO L225 Difference]: With dead ends: 30394 [2022-12-14 06:56:05,211 INFO L226 Difference]: Without dead ends: 23165 [2022-12-14 06:56:05,217 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 [2022-12-14 06:56:05,218 INFO L413 NwaCegarLoop]: 2998 mSDtfsCounter, 1813 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1813 SdHoareTripleChecker+Valid, 5298 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:56:05,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1813 Valid, 5298 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:56:05,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23165 states. [2022-12-14 06:56:14,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23165 to 23149. [2022-12-14 06:56:14,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23149 states, 23137 states have (on average 1.264986817651381) internal successors, (29268), 23148 states have internal predecessors, (29268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:56:14,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23149 states to 23149 states and 29268 transitions. [2022-12-14 06:56:14,996 INFO L78 Accepts]: Start accepts. Automaton has 23149 states and 29268 transitions. Word has length 85 [2022-12-14 06:56:14,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:56:14,996 INFO L495 AbstractCegarLoop]: Abstraction has 23149 states and 29268 transitions. [2022-12-14 06:56:14,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:56:14,996 INFO L276 IsEmpty]: Start isEmpty. Operand 23149 states and 29268 transitions. [2022-12-14 06:56:15,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 06:56:15,004 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:56:15,004 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] [2022-12-14 06:56:15,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 06:56:15,004 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:56:15,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:56:15,005 INFO L85 PathProgramCache]: Analyzing trace with hash 457131040, now seen corresponding path program 1 times [2022-12-14 06:56:15,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:56:15,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873509915] [2022-12-14 06:56:15,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:56:15,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:56:15,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:56:15,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:56:15,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:56:15,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873509915] [2022-12-14 06:56:15,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873509915] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:56:15,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:56:15,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 06:56:15,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155498069] [2022-12-14 06:56:15,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:56:15,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 06:56:15,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:56:15,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 06:56:15,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-12-14 06:56:15,375 INFO L87 Difference]: Start difference. First operand 23149 states and 29268 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:56:40,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:56:40,829 INFO L93 Difference]: Finished difference Result 42449 states and 55646 transitions. [2022-12-14 06:56:40,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 06:56:40,830 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-12-14 06:56:40,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:56:40,870 INFO L225 Difference]: With dead ends: 42449 [2022-12-14 06:56:40,870 INFO L226 Difference]: Without dead ends: 38282 [2022-12-14 06:56:40,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=185, Invalid=465, Unknown=0, NotChecked=0, Total=650 [2022-12-14 06:56:40,879 INFO L413 NwaCegarLoop]: 2929 mSDtfsCounter, 16174 mSDsluCounter, 12652 mSDsCounter, 0 mSdLazyCounter, 1759 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16174 SdHoareTripleChecker+Valid, 15581 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 06:56:40,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16174 Valid, 15581 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1759 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 06:56:40,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38282 states. [2022-12-14 06:56:51,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38282 to 23048. [2022-12-14 06:56:51,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23048 states, 23037 states have (on average 1.2657029995225073) internal successors, (29158), 23047 states have internal predecessors, (29158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:56:51,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23048 states to 23048 states and 29158 transitions. [2022-12-14 06:56:51,432 INFO L78 Accepts]: Start accepts. Automaton has 23048 states and 29158 transitions. Word has length 85 [2022-12-14 06:56:51,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:56:51,432 INFO L495 AbstractCegarLoop]: Abstraction has 23048 states and 29158 transitions. [2022-12-14 06:56:51,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:56:51,432 INFO L276 IsEmpty]: Start isEmpty. Operand 23048 states and 29158 transitions. [2022-12-14 06:56:51,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 06:56:51,440 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:56:51,440 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] [2022-12-14 06:56:51,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 06:56:51,440 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:56:51,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:56:51,441 INFO L85 PathProgramCache]: Analyzing trace with hash -386055985, now seen corresponding path program 1 times [2022-12-14 06:56:51,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:56:51,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005440007] [2022-12-14 06:56:51,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:56:51,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:56:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:56:51,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:56:51,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:56:51,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005440007] [2022-12-14 06:56:51,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005440007] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:56:51,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:56:51,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 06:56:51,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702601474] [2022-12-14 06:56:51,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:56:51,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 06:56:51,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:56:51,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 06:56:51,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:56:51,703 INFO L87 Difference]: Start difference. First operand 23048 states and 29158 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:57:15,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:57:15,722 INFO L93 Difference]: Finished difference Result 42788 states and 55877 transitions. [2022-12-14 06:57:15,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 06:57:15,722 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-12-14 06:57:15,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:57:15,759 INFO L225 Difference]: With dead ends: 42788 [2022-12-14 06:57:15,759 INFO L226 Difference]: Without dead ends: 33074 [2022-12-14 06:57:15,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2022-12-14 06:57:15,771 INFO L413 NwaCegarLoop]: 1507 mSDtfsCounter, 10055 mSDsluCounter, 6168 mSDsCounter, 0 mSdLazyCounter, 7480 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10055 SdHoareTripleChecker+Valid, 7675 SdHoareTripleChecker+Invalid, 7486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 7480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 06:57:15,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10055 Valid, 7675 Invalid, 7486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 7480 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 06:57:15,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33074 states. [2022-12-14 06:57:26,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33074 to 23048. [2022-12-14 06:57:26,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23048 states, 23037 states have (on average 1.26565959109259) internal successors, (29157), 23047 states have internal predecessors, (29157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:57:27,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23048 states to 23048 states and 29157 transitions. [2022-12-14 06:57:27,016 INFO L78 Accepts]: Start accepts. Automaton has 23048 states and 29157 transitions. Word has length 85 [2022-12-14 06:57:27,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:57:27,017 INFO L495 AbstractCegarLoop]: Abstraction has 23048 states and 29157 transitions. [2022-12-14 06:57:27,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:57:27,017 INFO L276 IsEmpty]: Start isEmpty. Operand 23048 states and 29157 transitions. [2022-12-14 06:57:27,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 06:57:27,024 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:57:27,024 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] [2022-12-14 06:57:27,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 06:57:27,025 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:57:27,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:57:27,025 INFO L85 PathProgramCache]: Analyzing trace with hash -954958880, now seen corresponding path program 1 times [2022-12-14 06:57:27,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:57:27,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846177968] [2022-12-14 06:57:27,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:27,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:57:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:57:27,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:57:27,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:57:27,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846177968] [2022-12-14 06:57:27,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846177968] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:57:27,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:57:27,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:57:27,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157988868] [2022-12-14 06:57:27,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:57:27,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:57:27,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:57:27,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:57:27,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:57:27,088 INFO L87 Difference]: Start difference. First operand 23048 states and 29157 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:57:44,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:57:44,633 INFO L93 Difference]: Finished difference Result 37648 states and 49125 transitions. [2022-12-14 06:57:44,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:57:44,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-12-14 06:57:44,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:57:44,660 INFO L225 Difference]: With dead ends: 37648 [2022-12-14 06:57:44,660 INFO L226 Difference]: Without dead ends: 26905 [2022-12-14 06:57:44,669 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 [2022-12-14 06:57:44,669 INFO L413 NwaCegarLoop]: 2839 mSDtfsCounter, 1657 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1657 SdHoareTripleChecker+Valid, 3991 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:57:44,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1657 Valid, 3991 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:57:44,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26905 states. [2022-12-14 06:57:59,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26905 to 22363. [2022-12-14 06:57:59,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22363 states, 22352 states have (on average 1.2854778095919828) internal successors, (28733), 22362 states have internal predecessors, (28733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:57:59,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22363 states to 22363 states and 28733 transitions. [2022-12-14 06:57:59,955 INFO L78 Accepts]: Start accepts. Automaton has 22363 states and 28733 transitions. Word has length 85 [2022-12-14 06:57:59,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:57:59,956 INFO L495 AbstractCegarLoop]: Abstraction has 22363 states and 28733 transitions. [2022-12-14 06:57:59,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:57:59,956 INFO L276 IsEmpty]: Start isEmpty. Operand 22363 states and 28733 transitions. [2022-12-14 06:57:59,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 06:57:59,963 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:57:59,963 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] [2022-12-14 06:57:59,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 06:57:59,963 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:57:59,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:57:59,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1869392622, now seen corresponding path program 1 times [2022-12-14 06:57:59,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:57:59,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720958852] [2022-12-14 06:57:59,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:59,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:58:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:58:00,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:58:00,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:58:00,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720958852] [2022-12-14 06:58:00,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720958852] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:58:00,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:58:00,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 06:58:00,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389098736] [2022-12-14 06:58:00,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:58:00,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 06:58:00,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:58:00,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 06:58:00,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-14 06:58:00,460 INFO L87 Difference]: Start difference. First operand 22363 states and 28733 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:58:53,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:58:53,773 INFO L93 Difference]: Finished difference Result 54068 states and 71020 transitions. [2022-12-14 06:58:53,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-14 06:58:53,773 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-12-14 06:58:53,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:58:53,839 INFO L225 Difference]: With dead ends: 54068 [2022-12-14 06:58:53,839 INFO L226 Difference]: Without dead ends: 52108 [2022-12-14 06:58:53,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=267, Invalid=923, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 06:58:53,851 INFO L413 NwaCegarLoop]: 2967 mSDtfsCounter, 17694 mSDsluCounter, 15027 mSDsCounter, 0 mSdLazyCounter, 2640 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17694 SdHoareTripleChecker+Valid, 17994 SdHoareTripleChecker+Invalid, 2682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:58:53,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17694 Valid, 17994 Invalid, 2682 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [42 Valid, 2640 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-14 06:58:53,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52108 states. [2022-12-14 06:59:09,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52108 to 22341. [2022-12-14 06:59:09,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22341 states, 22331 states have (on average 1.2853880256146164) internal successors, (28704), 22340 states have internal predecessors, (28704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:59:09,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22341 states to 22341 states and 28704 transitions. [2022-12-14 06:59:09,407 INFO L78 Accepts]: Start accepts. Automaton has 22341 states and 28704 transitions. Word has length 85 [2022-12-14 06:59:09,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:59:09,407 INFO L495 AbstractCegarLoop]: Abstraction has 22341 states and 28704 transitions. [2022-12-14 06:59:09,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:59:09,407 INFO L276 IsEmpty]: Start isEmpty. Operand 22341 states and 28704 transitions. [2022-12-14 06:59:09,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 06:59:09,414 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:59:09,414 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] [2022-12-14 06:59:09,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 06:59:09,414 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:59:09,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:59:09,414 INFO L85 PathProgramCache]: Analyzing trace with hash -9657187, now seen corresponding path program 1 times [2022-12-14 06:59:09,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:59:09,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963513417] [2022-12-14 06:59:09,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:59:09,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:59:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:59:09,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:59:09,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:59:09,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963513417] [2022-12-14 06:59:09,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963513417] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:59:09,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:59:09,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:59:09,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898569135] [2022-12-14 06:59:09,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:59:09,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:59:09,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:59:09,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:59:09,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:59:09,476 INFO L87 Difference]: Start difference. First operand 22341 states and 28704 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:59:32,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:59:32,649 INFO L93 Difference]: Finished difference Result 40467 states and 53351 transitions. [2022-12-14 06:59:32,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:59:32,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-12-14 06:59:32,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:59:32,680 INFO L225 Difference]: With dead ends: 40467 [2022-12-14 06:59:32,680 INFO L226 Difference]: Without dead ends: 27656 [2022-12-14 06:59:32,691 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 [2022-12-14 06:59:32,692 INFO L413 NwaCegarLoop]: 2771 mSDtfsCounter, 1583 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 3977 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:59:32,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1583 Valid, 3977 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:59:32,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27656 states. [2022-12-14 06:59:53,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27656 to 22790. [2022-12-14 06:59:53,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22790 states, 22780 states have (on average 1.295566286215979) internal successors, (29513), 22789 states have internal predecessors, (29513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:59:54,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22790 states to 22790 states and 29513 transitions. [2022-12-14 06:59:54,025 INFO L78 Accepts]: Start accepts. Automaton has 22790 states and 29513 transitions. Word has length 85 [2022-12-14 06:59:54,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:59:54,026 INFO L495 AbstractCegarLoop]: Abstraction has 22790 states and 29513 transitions. [2022-12-14 06:59:54,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:59:54,026 INFO L276 IsEmpty]: Start isEmpty. Operand 22790 states and 29513 transitions. [2022-12-14 06:59:54,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 06:59:54,035 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:59:54,035 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] [2022-12-14 06:59:54,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 06:59:54,035 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 06:59:54,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:59:54,035 INFO L85 PathProgramCache]: Analyzing trace with hash 2006860160, now seen corresponding path program 1 times [2022-12-14 06:59:54,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:59:54,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147034814] [2022-12-14 06:59:54,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:59:54,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:59:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:59:54,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:59:54,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:59:54,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147034814] [2022-12-14 06:59:54,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147034814] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:59:54,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:59:54,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:59:54,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016643410] [2022-12-14 06:59:54,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:59:54,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:59:54,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:59:54,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:59:54,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:59:54,102 INFO L87 Difference]: Start difference. First operand 22790 states and 29513 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:00:29,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:00:29,890 INFO L93 Difference]: Finished difference Result 53681 states and 70449 transitions. [2022-12-14 07:00:29,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:00:29,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-12-14 07:00:29,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:00:29,932 INFO L225 Difference]: With dead ends: 53681 [2022-12-14 07:00:29,932 INFO L226 Difference]: Without dead ends: 37794 [2022-12-14 07:00:29,946 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 [2022-12-14 07:00:29,947 INFO L413 NwaCegarLoop]: 2839 mSDtfsCounter, 1700 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1700 SdHoareTripleChecker+Valid, 5182 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:00:29,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1700 Valid, 5182 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 07:00:29,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37794 states. [2022-12-14 07:01:04,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37794 to 37780. [2022-12-14 07:01:04,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37780 states, 37770 states have (on average 1.2942546994969553) internal successors, (48884), 37779 states have internal predecessors, (48884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:01:04,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37780 states to 37780 states and 48884 transitions. [2022-12-14 07:01:04,667 INFO L78 Accepts]: Start accepts. Automaton has 37780 states and 48884 transitions. Word has length 85 [2022-12-14 07:01:04,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:01:04,667 INFO L495 AbstractCegarLoop]: Abstraction has 37780 states and 48884 transitions. [2022-12-14 07:01:04,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:01:04,667 INFO L276 IsEmpty]: Start isEmpty. Operand 37780 states and 48884 transitions. [2022-12-14 07:01:04,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 07:01:04,679 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:01:04,679 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] [2022-12-14 07:01:04,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-14 07:01:04,680 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 07:01:04,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:01:04,680 INFO L85 PathProgramCache]: Analyzing trace with hash -279847813, now seen corresponding path program 1 times [2022-12-14 07:01:04,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:01:04,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369958814] [2022-12-14 07:01:04,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:01:04,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:01:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:01:04,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:01:04,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:01:04,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369958814] [2022-12-14 07:01:04,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369958814] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:01:04,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:01:04,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 07:01:04,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497872570] [2022-12-14 07:01:04,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:01:04,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 07:01:04,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:01:04,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 07:01:04,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:01:04,905 INFO L87 Difference]: Start difference. First operand 37780 states and 48884 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:02:25,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:02:25,009 INFO L93 Difference]: Finished difference Result 76217 states and 99041 transitions. [2022-12-14 07:02:25,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 07:02:25,009 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-12-14 07:02:25,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:02:25,106 INFO L225 Difference]: With dead ends: 76217 [2022-12-14 07:02:25,106 INFO L226 Difference]: Without dead ends: 69501 [2022-12-14 07:02:25,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-12-14 07:02:25,127 INFO L413 NwaCegarLoop]: 1669 mSDtfsCounter, 8918 mSDsluCounter, 6272 mSDsCounter, 0 mSdLazyCounter, 7763 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8918 SdHoareTripleChecker+Valid, 7941 SdHoareTripleChecker+Invalid, 7810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 7763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:02:25,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8918 Valid, 7941 Invalid, 7810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 7763 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-12-14 07:02:25,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69501 states. [2022-12-14 07:03:00,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69501 to 37742. [2022-12-14 07:03:00,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37742 states, 37732 states have (on average 1.2943125198770276) internal successors, (48837), 37741 states have internal predecessors, (48837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:03:00,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37742 states to 37742 states and 48837 transitions. [2022-12-14 07:03:00,699 INFO L78 Accepts]: Start accepts. Automaton has 37742 states and 48837 transitions. Word has length 86 [2022-12-14 07:03:00,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:03:00,699 INFO L495 AbstractCegarLoop]: Abstraction has 37742 states and 48837 transitions. [2022-12-14 07:03:00,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:03:00,699 INFO L276 IsEmpty]: Start isEmpty. Operand 37742 states and 48837 transitions. [2022-12-14 07:03:00,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 07:03:00,708 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:03:00,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:03:00,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-14 07:03:00,708 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-12-14 07:03:00,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:03:00,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1166777784, now seen corresponding path program 1 times [2022-12-14 07:03:00,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:03:00,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756017555] [2022-12-14 07:03:00,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:03:00,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:03:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:03:01,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:03:01,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:03:01,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756017555] [2022-12-14 07:03:01,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756017555] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:03:01,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:03:01,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 07:03:01,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112592543] [2022-12-14 07:03:01,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:03:01,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 07:03:01,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:03:01,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 07:03:01,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-14 07:03:01,198 INFO L87 Difference]: Start difference. First operand 37742 states and 48837 transitions. Second operand has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 12 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)