./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_8e890f8d-078d-4733-83c5-f9b248923f7e/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e890f8d-078d-4733-83c5-f9b248923f7e/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e890f8d-078d-4733-83c5-f9b248923f7e/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e890f8d-078d-4733-83c5-f9b248923f7e/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e890f8d-078d-4733-83c5-f9b248923f7e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e890f8d-078d-4733-83c5-f9b248923f7e/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 876148c876cf7c1b78d2f058097c1ea19d5931075241b9f9a3c243e2bacc58fd --- 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-38b53e6 [2022-11-25 18:06:51,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:06:51,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:06:51,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:06:51,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:06:51,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:06:51,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:06:51,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:06:51,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:06:51,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:06:51,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:06:51,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:06:51,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:06:51,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:06:51,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:06:51,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:06:51,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:06:51,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:06:51,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:06:51,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:06:51,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:06:51,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:06:51,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:06:51,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:06:51,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:06:51,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:06:51,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:06:51,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:06:51,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:06:51,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:06:51,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:06:51,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:06:51,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:06:51,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:06:51,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:06:51,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:06:51,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:06:51,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:06:51,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:06:51,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:06:51,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:06:51,540 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e890f8d-078d-4733-83c5-f9b248923f7e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 18:06:51,562 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:06:51,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:06:51,563 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:06:51,564 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:06:51,564 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:06:51,565 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:06:51,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:06:51,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:06:51,566 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:06:51,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:06:51,567 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:06:51,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:06:51,567 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:06:51,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:06:51,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:06:51,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:06:51,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:06:51,568 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:06:51,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:06:51,569 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:06:51,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:06:51,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:06:51,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:06:51,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:06:51,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:06:51,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:06:51,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:06:51,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:06:51,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:06:51,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:06:51,571 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:06:51,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:06:51,572 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:06:51,572 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:06:51,572 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8e890f8d-078d-4733-83c5-f9b248923f7e/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e890f8d-078d-4733-83c5-f9b248923f7e/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 876148c876cf7c1b78d2f058097c1ea19d5931075241b9f9a3c243e2bacc58fd [2022-11-25 18:06:51,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:06:51,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:06:51,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:06:51,904 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:06:51,904 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:06:51,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e890f8d-078d-4733-83c5-f9b248923f7e/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-25 18:06:55,082 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:06:55,493 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:06:55,494 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-25 18:06:55,518 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e890f8d-078d-4733-83c5-f9b248923f7e/bin/uautomizer-ZsLfNo2U6R/data/d3d25721d/28e5e38f1eab4222bd1975538c238ce3/FLAG1da0c5e29 [2022-11-25 18:06:55,535 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e890f8d-078d-4733-83c5-f9b248923f7e/bin/uautomizer-ZsLfNo2U6R/data/d3d25721d/28e5e38f1eab4222bd1975538c238ce3 [2022-11-25 18:06:55,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:06:55,539 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:06:55,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:06:55,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:06:55,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:06:55,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:06:55" (1/1) ... [2022-11-25 18:06:55,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ff96e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:55, skipping insertion in model container [2022-11-25 18:06:55,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:06:55" (1/1) ... [2022-11-25 18:06:55,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:06:55,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:06:56,139 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10927,10940] [2022-11-25 18:06:56,169 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14764,14777] [2022-11-25 18:06:56,180 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15985,15998] [2022-11-25 18:06:56,188 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16691,16704] [2022-11-25 18:06:56,202 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18235,18248] [2022-11-25 18:06:56,210 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18941,18954] [2022-11-25 18:06:56,219 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19970,19983] [2022-11-25 18:06:56,237 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22376,22389] [2022-11-25 18:06:56,243 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23085,23098] [2022-11-25 18:06:56,251 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24122,24135] [2022-11-25 18:06:56,263 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26018,26031] [2022-11-25 18:06:56,286 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29926,29939] [2022-11-25 18:06:56,292 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30635,30648] [2022-11-25 18:06:56,299 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31667,31680] [2022-11-25 18:06:56,327 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33558,33571] [2022-11-25 18:06:56,363 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[36771,36784] [2022-11-25 18:06:56,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:06:56,587 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:06:56,658 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10927,10940] [2022-11-25 18:06:56,684 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14764,14777] [2022-11-25 18:06:56,695 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15985,15998] [2022-11-25 18:06:56,703 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16691,16704] [2022-11-25 18:06:56,715 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18235,18248] [2022-11-25 18:06:56,723 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18941,18954] [2022-11-25 18:06:56,732 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19970,19983] [2022-11-25 18:06:56,752 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22376,22389] [2022-11-25 18:06:56,760 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23085,23098] [2022-11-25 18:06:56,771 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24122,24135] [2022-11-25 18:06:56,787 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26018,26031] [2022-11-25 18:06:56,818 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29926,29939] [2022-11-25 18:06:56,825 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30635,30648] [2022-11-25 18:06:56,834 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31667,31680] [2022-11-25 18:06:56,850 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33558,33571] [2022-11-25 18:06:56,875 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_8e890f8d-078d-4733-83c5-f9b248923f7e/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[36771,36784] [2022-11-25 18:06:57,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:06:57,068 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:06:57,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:57 WrapperNode [2022-11-25 18:06:57,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:06:57,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:06:57,070 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:06:57,070 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:06:57,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:57" (1/1) ... [2022-11-25 18:06:57,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:57" (1/1) ... [2022-11-25 18:06:57,280 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3340 [2022-11-25 18:06:57,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:06:57,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:06:57,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:06:57,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:06:57,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:57" (1/1) ... [2022-11-25 18:06:57,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:57" (1/1) ... [2022-11-25 18:06:57,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:57" (1/1) ... [2022-11-25 18:06:57,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:57" (1/1) ... [2022-11-25 18:06:57,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:57" (1/1) ... [2022-11-25 18:06:57,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:57" (1/1) ... [2022-11-25 18:06:57,377 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:57" (1/1) ... [2022-11-25 18:06:57,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:57" (1/1) ... [2022-11-25 18:06:57,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:06:57,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:06:57,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:06:57,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:06:57,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:57" (1/1) ... [2022-11-25 18:06:57,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:06:57,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e890f8d-078d-4733-83c5-f9b248923f7e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:06:57,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e890f8d-078d-4733-83c5-f9b248923f7e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:06:57,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e890f8d-078d-4733-83c5-f9b248923f7e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:06:57,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:06:57,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:06:57,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:06:57,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:06:57,805 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:06:57,807 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:06:59,997 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:07:00,025 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:07:00,025 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:07:00,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:07:00 BoogieIcfgContainer [2022-11-25 18:07:00,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:07:00,040 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:07:00,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:07:00,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:07:00,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:06:55" (1/3) ... [2022-11-25 18:07:00,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa31303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:07:00, skipping insertion in model container [2022-11-25 18:07:00,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:06:57" (2/3) ... [2022-11-25 18:07:00,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa31303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:07:00, skipping insertion in model container [2022-11-25 18:07:00,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:07:00" (3/3) ... [2022-11-25 18:07:00,049 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-25 18:07:00,070 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:07:00,070 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-25 18:07:00,156 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:07:00,173 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=PETRI_NET, 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;@5a0b42c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:07:00,173 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-25 18:07:00,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 626 states, 609 states have (on average 1.8505747126436782) internal successors, (1127), 625 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:00,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 18:07:00,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:00,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:00,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:00,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:00,216 INFO L85 PathProgramCache]: Analyzing trace with hash -50607350, now seen corresponding path program 1 times [2022-11-25 18:07:00,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:00,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852449597] [2022-11-25 18:07:00,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:00,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:01,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:01,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:01,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852449597] [2022-11-25 18:07:01,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852449597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:01,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:01,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:07:01,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082422557] [2022-11-25 18:07:01,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:01,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:07:01,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:01,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:07:01,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:07:01,080 INFO L87 Difference]: Start difference. First operand has 626 states, 609 states have (on average 1.8505747126436782) internal successors, (1127), 625 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:01,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:01,744 INFO L93 Difference]: Finished difference Result 971 states and 1686 transitions. [2022-11-25 18:07:01,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:07:01,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-11-25 18:07:01,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:01,765 INFO L225 Difference]: With dead ends: 971 [2022-11-25 18:07:01,766 INFO L226 Difference]: Without dead ends: 498 [2022-11-25 18:07:01,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:07:01,780 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 2526 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2526 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:01,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2526 Valid, 603 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 18:07:01,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2022-11-25 18:07:01,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2022-11-25 18:07:01,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 482 states have (on average 1.3112033195020747) internal successors, (632), 497 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:01,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 632 transitions. [2022-11-25 18:07:01,879 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 632 transitions. Word has length 71 [2022-11-25 18:07:01,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:01,880 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 632 transitions. [2022-11-25 18:07:01,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:01,881 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 632 transitions. [2022-11-25 18:07:01,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-25 18:07:01,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:01,884 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:01,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:07:01,885 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:01,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:01,886 INFO L85 PathProgramCache]: Analyzing trace with hash -329897172, now seen corresponding path program 1 times [2022-11-25 18:07:01,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:01,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596231697] [2022-11-25 18:07:01,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:01,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:02,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:02,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:02,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596231697] [2022-11-25 18:07:02,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596231697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:02,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:02,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:07:02,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792155744] [2022-11-25 18:07:02,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:02,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:07:02,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:02,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:07:02,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:07:02,134 INFO L87 Difference]: Start difference. First operand 498 states and 632 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:02,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:02,706 INFO L93 Difference]: Finished difference Result 834 states and 1087 transitions. [2022-11-25 18:07:02,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:07:02,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-11-25 18:07:02,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:02,709 INFO L225 Difference]: With dead ends: 834 [2022-11-25 18:07:02,710 INFO L226 Difference]: Without dead ends: 458 [2022-11-25 18:07:02,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:07:02,712 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1648 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1648 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:02,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1648 Valid, 328 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 18:07:02,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-11-25 18:07:02,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2022-11-25 18:07:02,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 442 states have (on average 1.3190045248868778) internal successors, (583), 457 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:02,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 583 transitions. [2022-11-25 18:07:02,770 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 583 transitions. Word has length 72 [2022-11-25 18:07:02,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:02,771 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 583 transitions. [2022-11-25 18:07:02,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:02,771 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 583 transitions. [2022-11-25 18:07:02,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-25 18:07:02,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:02,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:02,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:07:02,774 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:02,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:02,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1203518485, now seen corresponding path program 1 times [2022-11-25 18:07:02,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:02,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281604996] [2022-11-25 18:07:02,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:02,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:02,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:02,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:02,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281604996] [2022-11-25 18:07:02,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281604996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:02,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:02,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:07:02,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50303141] [2022-11-25 18:07:02,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:02,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:07:02,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:02,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:07:02,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:07:02,986 INFO L87 Difference]: Start difference. First operand 458 states and 583 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:03,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:03,393 INFO L93 Difference]: Finished difference Result 794 states and 1037 transitions. [2022-11-25 18:07:03,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:07:03,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-11-25 18:07:03,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:03,396 INFO L225 Difference]: With dead ends: 794 [2022-11-25 18:07:03,396 INFO L226 Difference]: Without dead ends: 426 [2022-11-25 18:07:03,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:07:03,398 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 1555 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1555 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:03,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1555 Valid, 322 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 18:07:03,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2022-11-25 18:07:03,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2022-11-25 18:07:03,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 410 states have (on average 1.3317073170731708) internal successors, (546), 425 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:03,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 546 transitions. [2022-11-25 18:07:03,426 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 546 transitions. Word has length 73 [2022-11-25 18:07:03,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:03,427 INFO L495 AbstractCegarLoop]: Abstraction has 426 states and 546 transitions. [2022-11-25 18:07:03,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:03,427 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 546 transitions. [2022-11-25 18:07:03,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-25 18:07:03,429 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:03,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:03,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:07:03,430 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:03,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:03,431 INFO L85 PathProgramCache]: Analyzing trace with hash -2052061875, now seen corresponding path program 1 times [2022-11-25 18:07:03,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:03,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715290608] [2022-11-25 18:07:03,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:03,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:03,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:03,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:03,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715290608] [2022-11-25 18:07:03,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715290608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:03,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:03,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:07:03,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719651023] [2022-11-25 18:07:03,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:03,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:07:03,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:03,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:07:03,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:07:03,673 INFO L87 Difference]: Start difference. First operand 426 states and 546 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:04,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:04,103 INFO L93 Difference]: Finished difference Result 762 states and 999 transitions. [2022-11-25 18:07:04,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:07:04,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-11-25 18:07:04,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:04,107 INFO L225 Difference]: With dead ends: 762 [2022-11-25 18:07:04,107 INFO L226 Difference]: Without dead ends: 401 [2022-11-25 18:07:04,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:07:04,109 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 1497 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:04,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 309 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 18:07:04,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-11-25 18:07:04,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2022-11-25 18:07:04,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 385 states have (on average 1.3454545454545455) internal successors, (518), 400 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:04,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 518 transitions. [2022-11-25 18:07:04,144 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 518 transitions. Word has length 74 [2022-11-25 18:07:04,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:04,145 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 518 transitions. [2022-11-25 18:07:04,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:04,145 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 518 transitions. [2022-11-25 18:07:04,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-25 18:07:04,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:04,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:04,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:07:04,147 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:04,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:04,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1326375668, now seen corresponding path program 1 times [2022-11-25 18:07:04,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:04,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446282544] [2022-11-25 18:07:04,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:04,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:04,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:04,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:04,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:04,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446282544] [2022-11-25 18:07:04,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446282544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:04,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:04,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:07:04,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611367696] [2022-11-25 18:07:04,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:04,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:07:04,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:04,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:07:04,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:07:04,339 INFO L87 Difference]: Start difference. First operand 401 states and 518 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:04,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:04,831 INFO L93 Difference]: Finished difference Result 737 states and 970 transitions. [2022-11-25 18:07:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:07:04,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-11-25 18:07:04,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:04,837 INFO L225 Difference]: With dead ends: 737 [2022-11-25 18:07:04,838 INFO L226 Difference]: Without dead ends: 390 [2022-11-25 18:07:04,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:07:04,840 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 1445 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:04,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1445 Valid, 304 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 18:07:04,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-11-25 18:07:04,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2022-11-25 18:07:04,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3502673796791445) internal successors, (505), 389 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:04,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 505 transitions. [2022-11-25 18:07:04,890 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 505 transitions. Word has length 75 [2022-11-25 18:07:04,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:04,890 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 505 transitions. [2022-11-25 18:07:04,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:04,891 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 505 transitions. [2022-11-25 18:07:04,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-25 18:07:04,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:04,896 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:04,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:07:04,896 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:04,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:04,897 INFO L85 PathProgramCache]: Analyzing trace with hash -976633234, now seen corresponding path program 1 times [2022-11-25 18:07:04,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:04,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328748851] [2022-11-25 18:07:04,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:04,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:05,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:05,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:05,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328748851] [2022-11-25 18:07:05,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328748851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:05,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:05,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:07:05,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765773358] [2022-11-25 18:07:05,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:05,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 18:07:05,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:05,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 18:07:05,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:07:05,343 INFO L87 Difference]: Start difference. First operand 390 states and 505 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:06,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:06,156 INFO L93 Difference]: Finished difference Result 754 states and 962 transitions. [2022-11-25 18:07:06,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:07:06,157 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-25 18:07:06,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:06,161 INFO L225 Difference]: With dead ends: 754 [2022-11-25 18:07:06,161 INFO L226 Difference]: Without dead ends: 542 [2022-11-25 18:07:06,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-11-25 18:07:06,164 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 2207 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2207 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:06,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2207 Valid, 805 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 18:07:06,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-11-25 18:07:06,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 390. [2022-11-25 18:07:06,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3475935828877006) internal successors, (504), 389 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:06,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 504 transitions. [2022-11-25 18:07:06,239 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 504 transitions. Word has length 76 [2022-11-25 18:07:06,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:06,240 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 504 transitions. [2022-11-25 18:07:06,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:06,241 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 504 transitions. [2022-11-25 18:07:06,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-25 18:07:06,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:06,246 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:06,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:07:06,246 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:06,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:06,247 INFO L85 PathProgramCache]: Analyzing trace with hash 649885335, now seen corresponding path program 1 times [2022-11-25 18:07:06,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:06,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190692304] [2022-11-25 18:07:06,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:06,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:06,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:06,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:06,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190692304] [2022-11-25 18:07:06,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190692304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:06,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:06,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:07:06,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638068984] [2022-11-25 18:07:06,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:06,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:07:06,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:06,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:07:06,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:07:06,814 INFO L87 Difference]: Start difference. First operand 390 states and 504 transitions. Second operand has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:08,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:08,324 INFO L93 Difference]: Finished difference Result 904 states and 1205 transitions. [2022-11-25 18:07:08,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 18:07:08,325 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-25 18:07:08,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:08,328 INFO L225 Difference]: With dead ends: 904 [2022-11-25 18:07:08,329 INFO L226 Difference]: Without dead ends: 806 [2022-11-25 18:07:08,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2022-11-25 18:07:08,330 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 2726 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2726 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:08,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2726 Valid, 1860 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 18:07:08,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2022-11-25 18:07:08,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 393. [2022-11-25 18:07:08,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.3448275862068966) internal successors, (507), 392 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:08,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 507 transitions. [2022-11-25 18:07:08,378 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 507 transitions. Word has length 76 [2022-11-25 18:07:08,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:08,378 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 507 transitions. [2022-11-25 18:07:08,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:08,379 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 507 transitions. [2022-11-25 18:07:08,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-25 18:07:08,380 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:08,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:08,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:07:08,381 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:08,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:08,382 INFO L85 PathProgramCache]: Analyzing trace with hash 241040107, now seen corresponding path program 1 times [2022-11-25 18:07:08,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:08,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116797402] [2022-11-25 18:07:08,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:08,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:08,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:08,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:08,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116797402] [2022-11-25 18:07:08,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116797402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:08,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:08,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:07:08,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866742737] [2022-11-25 18:07:08,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:08,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:07:08,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:08,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:07:08,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:07:08,810 INFO L87 Difference]: Start difference. First operand 393 states and 507 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:10,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:10,409 INFO L93 Difference]: Finished difference Result 863 states and 1158 transitions. [2022-11-25 18:07:10,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:07:10,410 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-25 18:07:10,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:10,413 INFO L225 Difference]: With dead ends: 863 [2022-11-25 18:07:10,414 INFO L226 Difference]: Without dead ends: 735 [2022-11-25 18:07:10,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:07:10,416 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 2756 mSDsluCounter, 1776 mSDsCounter, 0 mSdLazyCounter, 1570 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2756 SdHoareTripleChecker+Valid, 2176 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:10,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2756 Valid, 2176 Invalid, 1577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1570 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 18:07:10,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-11-25 18:07:10,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 390. [2022-11-25 18:07:10,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3449197860962567) internal successors, (503), 389 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:10,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 503 transitions. [2022-11-25 18:07:10,478 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 503 transitions. Word has length 76 [2022-11-25 18:07:10,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:10,479 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 503 transitions. [2022-11-25 18:07:10,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:10,479 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 503 transitions. [2022-11-25 18:07:10,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-25 18:07:10,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:10,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:10,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 18:07:10,482 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:10,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:10,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1538930145, now seen corresponding path program 1 times [2022-11-25 18:07:10,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:10,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884455215] [2022-11-25 18:07:10,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:10,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:10,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:10,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:10,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884455215] [2022-11-25 18:07:10,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884455215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:10,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:10,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:07:10,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679397652] [2022-11-25 18:07:10,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:10,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:07:10,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:10,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:07:10,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:07:10,929 INFO L87 Difference]: Start difference. First operand 390 states and 503 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:12,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:12,328 INFO L93 Difference]: Finished difference Result 820 states and 1103 transitions. [2022-11-25 18:07:12,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:07:12,329 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-25 18:07:12,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:12,333 INFO L225 Difference]: With dead ends: 820 [2022-11-25 18:07:12,333 INFO L226 Difference]: Without dead ends: 731 [2022-11-25 18:07:12,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-25 18:07:12,337 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 2760 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2760 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:12,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2760 Valid, 1632 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1254 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 18:07:12,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-11-25 18:07:12,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 390. [2022-11-25 18:07:12,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3422459893048129) internal successors, (502), 389 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:12,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 502 transitions. [2022-11-25 18:07:12,394 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 502 transitions. Word has length 76 [2022-11-25 18:07:12,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:12,395 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 502 transitions. [2022-11-25 18:07:12,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:12,395 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 502 transitions. [2022-11-25 18:07:12,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-25 18:07:12,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:12,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:12,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 18:07:12,398 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:12,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:12,404 INFO L85 PathProgramCache]: Analyzing trace with hash 684383254, now seen corresponding path program 1 times [2022-11-25 18:07:12,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:12,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526169756] [2022-11-25 18:07:12,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:12,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:13,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:13,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:13,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526169756] [2022-11-25 18:07:13,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526169756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:13,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:13,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:07:13,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358931773] [2022-11-25 18:07:13,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:13,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:07:13,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:13,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:07:13,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:07:13,204 INFO L87 Difference]: Start difference. First operand 390 states and 502 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:16,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:16,407 INFO L93 Difference]: Finished difference Result 1347 states and 1865 transitions. [2022-11-25 18:07:16,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 18:07:16,408 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-25 18:07:16,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:16,412 INFO L225 Difference]: With dead ends: 1347 [2022-11-25 18:07:16,412 INFO L226 Difference]: Without dead ends: 1249 [2022-11-25 18:07:16,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 18:07:16,414 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 4470 mSDsluCounter, 1939 mSDsCounter, 0 mSdLazyCounter, 2188 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4470 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 2344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 2188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:16,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4470 Valid, 2580 Invalid, 2344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 2188 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 18:07:16,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-11-25 18:07:16,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 394. [2022-11-25 18:07:16,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3386243386243386) internal successors, (506), 393 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:16,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 506 transitions. [2022-11-25 18:07:16,527 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 506 transitions. Word has length 78 [2022-11-25 18:07:16,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:16,528 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 506 transitions. [2022-11-25 18:07:16,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:16,528 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 506 transitions. [2022-11-25 18:07:16,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-25 18:07:16,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:16,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:16,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 18:07:16,530 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:16,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:16,531 INFO L85 PathProgramCache]: Analyzing trace with hash 275538026, now seen corresponding path program 1 times [2022-11-25 18:07:16,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:16,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438177364] [2022-11-25 18:07:16,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:16,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:16,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:16,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:16,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438177364] [2022-11-25 18:07:16,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438177364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:16,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:16,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:07:16,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544333323] [2022-11-25 18:07:16,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:16,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:07:16,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:16,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:07:16,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:07:16,917 INFO L87 Difference]: Start difference. First operand 394 states and 506 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:18,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:18,297 INFO L93 Difference]: Finished difference Result 803 states and 1071 transitions. [2022-11-25 18:07:18,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:07:18,298 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-25 18:07:18,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:18,301 INFO L225 Difference]: With dead ends: 803 [2022-11-25 18:07:18,301 INFO L226 Difference]: Without dead ends: 727 [2022-11-25 18:07:18,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-25 18:07:18,303 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 2941 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2941 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:18,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2941 Valid, 1496 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 18:07:18,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-11-25 18:07:18,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 394. [2022-11-25 18:07:18,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.335978835978836) internal successors, (505), 393 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:18,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 505 transitions. [2022-11-25 18:07:18,388 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 505 transitions. Word has length 78 [2022-11-25 18:07:18,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:18,389 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 505 transitions. [2022-11-25 18:07:18,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:18,389 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 505 transitions. [2022-11-25 18:07:18,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-25 18:07:18,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:18,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:18,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 18:07:18,392 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:18,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:18,392 INFO L85 PathProgramCache]: Analyzing trace with hash 643640201, now seen corresponding path program 1 times [2022-11-25 18:07:18,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:18,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848337287] [2022-11-25 18:07:18,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:18,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:19,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:19,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:19,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848337287] [2022-11-25 18:07:19,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848337287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:19,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:19,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:07:19,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919907816] [2022-11-25 18:07:19,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:19,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:07:19,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:19,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:07:19,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:07:19,249 INFO L87 Difference]: Start difference. First operand 394 states and 505 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:22,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:22,227 INFO L93 Difference]: Finished difference Result 1219 states and 1675 transitions. [2022-11-25 18:07:22,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 18:07:22,228 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-25 18:07:22,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:22,233 INFO L225 Difference]: With dead ends: 1219 [2022-11-25 18:07:22,233 INFO L226 Difference]: Without dead ends: 1143 [2022-11-25 18:07:22,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 18:07:22,235 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 4604 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4604 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 1761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:22,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4604 Valid, 1942 Invalid, 1761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 1601 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 18:07:22,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2022-11-25 18:07:22,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 398. [2022-11-25 18:07:22,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.3324607329842932) internal successors, (509), 397 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:22,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 509 transitions. [2022-11-25 18:07:22,333 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 509 transitions. Word has length 78 [2022-11-25 18:07:22,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:22,333 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 509 transitions. [2022-11-25 18:07:22,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:22,334 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 509 transitions. [2022-11-25 18:07:22,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-25 18:07:22,336 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:22,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:22,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 18:07:22,337 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:22,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:22,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1207054515, now seen corresponding path program 1 times [2022-11-25 18:07:22,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:22,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330978522] [2022-11-25 18:07:22,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:22,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:22,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:22,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:22,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330978522] [2022-11-25 18:07:22,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330978522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:22,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:22,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:07:22,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197515455] [2022-11-25 18:07:22,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:22,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:07:22,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:22,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:07:22,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:07:22,713 INFO L87 Difference]: Start difference. First operand 398 states and 509 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:24,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:24,071 INFO L93 Difference]: Finished difference Result 799 states and 1065 transitions. [2022-11-25 18:07:24,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:07:24,071 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-25 18:07:24,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:24,074 INFO L225 Difference]: With dead ends: 799 [2022-11-25 18:07:24,074 INFO L226 Difference]: Without dead ends: 727 [2022-11-25 18:07:24,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-25 18:07:24,075 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 2990 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2990 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:24,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2990 Valid, 1445 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:07:24,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-11-25 18:07:24,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 398. [2022-11-25 18:07:24,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.3298429319371727) internal successors, (508), 397 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:24,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 508 transitions. [2022-11-25 18:07:24,168 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 508 transitions. Word has length 78 [2022-11-25 18:07:24,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:24,168 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 508 transitions. [2022-11-25 18:07:24,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:24,168 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 508 transitions. [2022-11-25 18:07:24,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-25 18:07:24,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:24,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:24,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 18:07:24,170 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:24,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:24,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1808320783, now seen corresponding path program 1 times [2022-11-25 18:07:24,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:24,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019001153] [2022-11-25 18:07:24,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:24,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:24,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:24,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:24,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019001153] [2022-11-25 18:07:24,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019001153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:24,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:24,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:07:24,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666385156] [2022-11-25 18:07:24,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:24,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:07:24,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:24,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:07:24,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:07:24,608 INFO L87 Difference]: Start difference. First operand 398 states and 508 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:26,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:26,025 INFO L93 Difference]: Finished difference Result 842 states and 1112 transitions. [2022-11-25 18:07:26,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:07:26,026 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-25 18:07:26,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:26,029 INFO L225 Difference]: With dead ends: 842 [2022-11-25 18:07:26,029 INFO L226 Difference]: Without dead ends: 761 [2022-11-25 18:07:26,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-11-25 18:07:26,031 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 4083 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4083 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:26,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4083 Valid, 1615 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:07:26,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-11-25 18:07:26,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 405. [2022-11-25 18:07:26,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 389 states have (on average 1.3316195372750643) internal successors, (518), 404 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:26,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 518 transitions. [2022-11-25 18:07:26,138 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 518 transitions. Word has length 78 [2022-11-25 18:07:26,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:26,138 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 518 transitions. [2022-11-25 18:07:26,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:26,139 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 518 transitions. [2022-11-25 18:07:26,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-25 18:07:26,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:26,140 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:26,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 18:07:26,141 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:26,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:26,141 INFO L85 PathProgramCache]: Analyzing trace with hash 574449411, now seen corresponding path program 1 times [2022-11-25 18:07:26,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:26,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671650702] [2022-11-25 18:07:26,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:26,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:26,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:26,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:26,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671650702] [2022-11-25 18:07:26,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671650702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:26,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:26,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:07:26,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072098561] [2022-11-25 18:07:26,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:26,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:07:26,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:26,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:07:26,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:07:26,438 INFO L87 Difference]: Start difference. First operand 405 states and 518 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:27,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:27,784 INFO L93 Difference]: Finished difference Result 886 states and 1175 transitions. [2022-11-25 18:07:27,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:07:27,785 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-25 18:07:27,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:27,788 INFO L225 Difference]: With dead ends: 886 [2022-11-25 18:07:27,788 INFO L226 Difference]: Without dead ends: 743 [2022-11-25 18:07:27,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:07:27,790 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 2144 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2144 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:27,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2144 Valid, 1797 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:07:27,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2022-11-25 18:07:27,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 398. [2022-11-25 18:07:27,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.3272251308900525) internal successors, (507), 397 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:27,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 507 transitions. [2022-11-25 18:07:27,942 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 507 transitions. Word has length 78 [2022-11-25 18:07:27,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:27,943 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 507 transitions. [2022-11-25 18:07:27,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:27,944 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 507 transitions. [2022-11-25 18:07:27,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-25 18:07:27,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:27,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:27,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 18:07:27,946 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:27,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:27,947 INFO L85 PathProgramCache]: Analyzing trace with hash 688086315, now seen corresponding path program 1 times [2022-11-25 18:07:27,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:27,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519327087] [2022-11-25 18:07:27,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:27,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:28,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:28,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:28,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519327087] [2022-11-25 18:07:28,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519327087] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:28,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:28,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:07:28,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473814267] [2022-11-25 18:07:28,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:28,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:07:28,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:28,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:07:28,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:07:28,361 INFO L87 Difference]: Start difference. First operand 398 states and 507 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:29,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:29,746 INFO L93 Difference]: Finished difference Result 803 states and 1066 transitions. [2022-11-25 18:07:29,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:07:29,747 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-25 18:07:29,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:29,750 INFO L225 Difference]: With dead ends: 803 [2022-11-25 18:07:29,750 INFO L226 Difference]: Without dead ends: 727 [2022-11-25 18:07:29,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-25 18:07:29,752 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 2969 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2969 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:29,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2969 Valid, 1466 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:07:29,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-11-25 18:07:29,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 398. [2022-11-25 18:07:29,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.324607329842932) internal successors, (506), 397 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:29,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 506 transitions. [2022-11-25 18:07:29,870 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 506 transitions. Word has length 78 [2022-11-25 18:07:29,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:29,870 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 506 transitions. [2022-11-25 18:07:29,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:29,871 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 506 transitions. [2022-11-25 18:07:29,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-25 18:07:29,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:29,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:29,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 18:07:29,873 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:29,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:29,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1096931543, now seen corresponding path program 1 times [2022-11-25 18:07:29,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:29,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746647514] [2022-11-25 18:07:29,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:29,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:30,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:30,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:30,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746647514] [2022-11-25 18:07:30,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746647514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:30,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:30,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:07:30,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050539549] [2022-11-25 18:07:30,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:30,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:07:30,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:30,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:07:30,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:07:30,140 INFO L87 Difference]: Start difference. First operand 398 states and 506 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:31,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:31,464 INFO L93 Difference]: Finished difference Result 833 states and 1107 transitions. [2022-11-25 18:07:31,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:07:31,464 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-25 18:07:31,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:31,467 INFO L225 Difference]: With dead ends: 833 [2022-11-25 18:07:31,467 INFO L226 Difference]: Without dead ends: 735 [2022-11-25 18:07:31,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:07:31,469 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 2015 mSDsluCounter, 1352 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2015 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:31,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2015 Valid, 1783 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:07:31,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-11-25 18:07:31,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 398. [2022-11-25 18:07:31,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.3219895287958114) internal successors, (505), 397 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:31,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 505 transitions. [2022-11-25 18:07:31,569 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 505 transitions. Word has length 78 [2022-11-25 18:07:31,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:31,570 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 505 transitions. [2022-11-25 18:07:31,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:31,570 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 505 transitions. [2022-11-25 18:07:31,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-25 18:07:31,571 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:31,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:31,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 18:07:31,572 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:31,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:31,572 INFO L85 PathProgramCache]: Analyzing trace with hash 308307099, now seen corresponding path program 1 times [2022-11-25 18:07:31,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:31,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465469673] [2022-11-25 18:07:31,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:31,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:31,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:31,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:31,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465469673] [2022-11-25 18:07:31,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465469673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:31,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:31,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:07:31,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89710485] [2022-11-25 18:07:31,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:31,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:07:31,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:31,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:07:31,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:07:31,845 INFO L87 Difference]: Start difference. First operand 398 states and 505 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:33,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:33,216 INFO L93 Difference]: Finished difference Result 833 states and 1108 transitions. [2022-11-25 18:07:33,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:07:33,216 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-25 18:07:33,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:33,218 INFO L225 Difference]: With dead ends: 833 [2022-11-25 18:07:33,219 INFO L226 Difference]: Without dead ends: 735 [2022-11-25 18:07:33,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:07:33,220 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 1387 mSDsluCounter, 1409 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:33,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 1914 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:07:33,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-11-25 18:07:33,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 394. [2022-11-25 18:07:33,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3227513227513228) internal successors, (500), 393 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:33,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 500 transitions. [2022-11-25 18:07:33,305 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 500 transitions. Word has length 79 [2022-11-25 18:07:33,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:33,305 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 500 transitions. [2022-11-25 18:07:33,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:33,306 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 500 transitions. [2022-11-25 18:07:33,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-25 18:07:33,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:33,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:33,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 18:07:33,308 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:33,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:33,308 INFO L85 PathProgramCache]: Analyzing trace with hash -754652965, now seen corresponding path program 1 times [2022-11-25 18:07:33,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:33,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375252466] [2022-11-25 18:07:33,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:33,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:33,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:33,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:33,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375252466] [2022-11-25 18:07:33,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375252466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:33,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:33,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:07:33,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632592971] [2022-11-25 18:07:33,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:33,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:07:33,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:33,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:07:33,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:07:33,570 INFO L87 Difference]: Start difference. First operand 394 states and 500 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:34,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:34,923 INFO L93 Difference]: Finished difference Result 799 states and 1059 transitions. [2022-11-25 18:07:34,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:07:34,923 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-25 18:07:34,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:34,926 INFO L225 Difference]: With dead ends: 799 [2022-11-25 18:07:34,926 INFO L226 Difference]: Without dead ends: 723 [2022-11-25 18:07:34,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:07:34,928 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 1604 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 1816 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:34,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 1816 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:07:34,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2022-11-25 18:07:35,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 390. [2022-11-25 18:07:35,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3235294117647058) internal successors, (495), 389 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:35,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 495 transitions. [2022-11-25 18:07:35,037 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 495 transitions. Word has length 79 [2022-11-25 18:07:35,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:35,037 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 495 transitions. [2022-11-25 18:07:35,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:35,038 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 495 transitions. [2022-11-25 18:07:35,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 18:07:35,039 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:35,039 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:35,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 18:07:35,040 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:35,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:35,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1780834374, now seen corresponding path program 1 times [2022-11-25 18:07:35,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:35,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610562219] [2022-11-25 18:07:35,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:35,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:35,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:35,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:35,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610562219] [2022-11-25 18:07:35,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610562219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:35,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:35,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:07:35,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040782814] [2022-11-25 18:07:35,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:35,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:07:35,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:35,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:07:35,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:07:35,384 INFO L87 Difference]: Start difference. First operand 390 states and 495 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) [2022-11-25 18:07:36,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:36,923 INFO L93 Difference]: Finished difference Result 773 states and 1019 transitions. [2022-11-25 18:07:36,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:07:36,924 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 [2022-11-25 18:07:36,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:36,927 INFO L225 Difference]: With dead ends: 773 [2022-11-25 18:07:36,927 INFO L226 Difference]: Without dead ends: 707 [2022-11-25 18:07:36,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:07:36,929 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 2339 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2339 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:36,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2339 Valid, 2075 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 18:07:36,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-25 18:07:37,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 390. [2022-11-25 18:07:37,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.320855614973262) internal successors, (494), 389 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:37,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 494 transitions. [2022-11-25 18:07:37,052 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 494 transitions. Word has length 80 [2022-11-25 18:07:37,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:37,053 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 494 transitions. [2022-11-25 18:07:37,053 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) [2022-11-25 18:07:37,053 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 494 transitions. [2022-11-25 18:07:37,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 18:07:37,054 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:37,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:37,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 18:07:37,054 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:37,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:37,054 INFO L85 PathProgramCache]: Analyzing trace with hash 515089470, now seen corresponding path program 1 times [2022-11-25 18:07:37,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:37,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379166301] [2022-11-25 18:07:37,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:37,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:37,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:37,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:37,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379166301] [2022-11-25 18:07:37,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379166301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:37,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:37,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:07:37,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843672588] [2022-11-25 18:07:37,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:37,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:07:37,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:37,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:07:37,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:07:37,613 INFO L87 Difference]: Start difference. First operand 390 states and 494 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:40,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:40,322 INFO L93 Difference]: Finished difference Result 1105 states and 1498 transitions. [2022-11-25 18:07:40,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 18:07:40,323 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-25 18:07:40,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:40,326 INFO L225 Difference]: With dead ends: 1105 [2022-11-25 18:07:40,327 INFO L226 Difference]: Without dead ends: 1036 [2022-11-25 18:07:40,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 18:07:40,328 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 5231 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 1714 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5231 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:40,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5231 Valid, 2100 Invalid, 1868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1714 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 18:07:40,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2022-11-25 18:07:40,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 394. [2022-11-25 18:07:40,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3174603174603174) internal successors, (498), 393 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:40,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 498 transitions. [2022-11-25 18:07:40,478 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 498 transitions. Word has length 80 [2022-11-25 18:07:40,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:40,479 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 498 transitions. [2022-11-25 18:07:40,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:40,479 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 498 transitions. [2022-11-25 18:07:40,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 18:07:40,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:40,480 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:40,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 18:07:40,483 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:40,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:40,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1270226045, now seen corresponding path program 1 times [2022-11-25 18:07:40,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:40,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98845093] [2022-11-25 18:07:40,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:40,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:40,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:40,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:40,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:40,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98845093] [2022-11-25 18:07:40,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98845093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:40,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:40,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:07:40,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440393340] [2022-11-25 18:07:40,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:40,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:07:40,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:40,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:07:40,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:07:40,815 INFO L87 Difference]: Start difference. First operand 394 states and 498 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) [2022-11-25 18:07:42,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:42,313 INFO L93 Difference]: Finished difference Result 776 states and 1020 transitions. [2022-11-25 18:07:42,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:07:42,314 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 [2022-11-25 18:07:42,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:42,317 INFO L225 Difference]: With dead ends: 776 [2022-11-25 18:07:42,317 INFO L226 Difference]: Without dead ends: 707 [2022-11-25 18:07:42,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:07:42,318 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 2422 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 1409 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2422 SdHoareTripleChecker+Valid, 1889 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:42,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2422 Valid, 1889 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1409 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 18:07:42,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-25 18:07:42,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 394. [2022-11-25 18:07:42,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3148148148148149) internal successors, (497), 393 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:42,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 497 transitions. [2022-11-25 18:07:42,423 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 497 transitions. Word has length 80 [2022-11-25 18:07:42,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:42,424 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 497 transitions. [2022-11-25 18:07:42,424 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) [2022-11-25 18:07:42,424 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 497 transitions. [2022-11-25 18:07:42,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 18:07:42,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:42,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:42,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 18:07:42,426 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:42,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:42,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1112544149, now seen corresponding path program 1 times [2022-11-25 18:07:42,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:42,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218352011] [2022-11-25 18:07:42,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:42,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:42,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:42,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:42,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218352011] [2022-11-25 18:07:42,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218352011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:42,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:42,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:07:42,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989211967] [2022-11-25 18:07:42,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:42,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:07:42,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:42,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:07:42,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:07:42,696 INFO L87 Difference]: Start difference. First operand 394 states and 497 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) [2022-11-25 18:07:44,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:44,171 INFO L93 Difference]: Finished difference Result 808 states and 1064 transitions. [2022-11-25 18:07:44,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:07:44,172 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 [2022-11-25 18:07:44,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:44,174 INFO L225 Difference]: With dead ends: 808 [2022-11-25 18:07:44,174 INFO L226 Difference]: Without dead ends: 727 [2022-11-25 18:07:44,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:07:44,175 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 2275 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2275 SdHoareTripleChecker+Valid, 1984 SdHoareTripleChecker+Invalid, 1519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:44,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2275 Valid, 1984 Invalid, 1519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1513 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:07:44,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-11-25 18:07:44,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 394. [2022-11-25 18:07:44,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.312169312169312) internal successors, (496), 393 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:44,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 496 transitions. [2022-11-25 18:07:44,311 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 496 transitions. Word has length 80 [2022-11-25 18:07:44,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:44,311 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 496 transitions. [2022-11-25 18:07:44,311 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) [2022-11-25 18:07:44,312 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 496 transitions. [2022-11-25 18:07:44,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 18:07:44,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:44,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:44,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 18:07:44,313 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:44,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:44,314 INFO L85 PathProgramCache]: Analyzing trace with hash -955374417, now seen corresponding path program 1 times [2022-11-25 18:07:44,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:44,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21447989] [2022-11-25 18:07:44,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:44,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:44,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:44,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:44,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21447989] [2022-11-25 18:07:44,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21447989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:44,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:44,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:07:44,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333602425] [2022-11-25 18:07:44,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:44,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:07:44,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:44,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:07:44,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:07:44,611 INFO L87 Difference]: Start difference. First operand 394 states and 496 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) [2022-11-25 18:07:46,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:46,164 INFO L93 Difference]: Finished difference Result 773 states and 1015 transitions. [2022-11-25 18:07:46,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:07:46,164 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 [2022-11-25 18:07:46,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:46,168 INFO L225 Difference]: With dead ends: 773 [2022-11-25 18:07:46,168 INFO L226 Difference]: Without dead ends: 707 [2022-11-25 18:07:46,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:07:46,169 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 2307 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2307 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:46,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2307 Valid, 2131 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 18:07:46,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-25 18:07:46,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 394. [2022-11-25 18:07:46,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3095238095238095) internal successors, (495), 393 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:46,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 495 transitions. [2022-11-25 18:07:46,339 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 495 transitions. Word has length 80 [2022-11-25 18:07:46,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:46,340 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 495 transitions. [2022-11-25 18:07:46,340 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) [2022-11-25 18:07:46,340 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 495 transitions. [2022-11-25 18:07:46,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 18:07:46,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:46,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:46,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-25 18:07:46,342 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:46,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:46,343 INFO L85 PathProgramCache]: Analyzing trace with hash 2073965149, now seen corresponding path program 1 times [2022-11-25 18:07:46,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:46,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492385077] [2022-11-25 18:07:46,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:46,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:46,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:46,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:46,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492385077] [2022-11-25 18:07:46,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492385077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:46,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:46,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:07:46,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001650506] [2022-11-25 18:07:46,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:46,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:07:46,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:46,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:07:46,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:07:46,877 INFO L87 Difference]: Start difference. First operand 394 states and 495 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:49,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:49,621 INFO L93 Difference]: Finished difference Result 1041 states and 1397 transitions. [2022-11-25 18:07:49,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 18:07:49,622 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-25 18:07:49,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:49,625 INFO L225 Difference]: With dead ends: 1041 [2022-11-25 18:07:49,626 INFO L226 Difference]: Without dead ends: 1036 [2022-11-25 18:07:49,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 18:07:49,629 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 4337 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4337 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 1790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:49,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4337 Valid, 2024 Invalid, 1790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 18:07:49,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2022-11-25 18:07:49,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 398. [2022-11-25 18:07:49,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.306282722513089) internal successors, (499), 397 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:49,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 499 transitions. [2022-11-25 18:07:49,751 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 499 transitions. Word has length 80 [2022-11-25 18:07:49,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:49,751 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 499 transitions. [2022-11-25 18:07:49,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:49,752 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 499 transitions. [2022-11-25 18:07:49,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 18:07:49,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:49,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:49,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-25 18:07:49,754 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:49,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:49,754 INFO L85 PathProgramCache]: Analyzing trace with hash -306680341, now seen corresponding path program 1 times [2022-11-25 18:07:49,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:49,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173257445] [2022-11-25 18:07:49,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:49,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:50,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:50,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:50,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173257445] [2022-11-25 18:07:50,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173257445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:50,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:50,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:07:50,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695631295] [2022-11-25 18:07:50,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:50,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:07:50,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:50,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:07:50,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:07:50,207 INFO L87 Difference]: Start difference. First operand 398 states and 499 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:52,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:52,824 INFO L93 Difference]: Finished difference Result 1099 states and 1487 transitions. [2022-11-25 18:07:52,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 18:07:52,825 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-25 18:07:52,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:52,828 INFO L225 Difference]: With dead ends: 1099 [2022-11-25 18:07:52,828 INFO L226 Difference]: Without dead ends: 1033 [2022-11-25 18:07:52,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 18:07:52,829 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 5211 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5211 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:52,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5211 Valid, 1806 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 18:07:52,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2022-11-25 18:07:52,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 402. [2022-11-25 18:07:52,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.3031088082901554) internal successors, (503), 401 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:52,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 503 transitions. [2022-11-25 18:07:52,952 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 503 transitions. Word has length 80 [2022-11-25 18:07:52,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:52,953 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 503 transitions. [2022-11-25 18:07:52,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:52,953 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 503 transitions. [2022-11-25 18:07:52,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 18:07:52,954 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:52,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:52,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-25 18:07:52,955 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:52,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:52,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1961273491, now seen corresponding path program 1 times [2022-11-25 18:07:52,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:52,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548264750] [2022-11-25 18:07:52,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:52,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:53,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:53,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:53,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548264750] [2022-11-25 18:07:53,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548264750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:53,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:53,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:07:53,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630107285] [2022-11-25 18:07:53,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:53,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:07:53,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:53,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:07:53,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:07:53,264 INFO L87 Difference]: Start difference. First operand 402 states and 503 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) [2022-11-25 18:07:54,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:54,803 INFO L93 Difference]: Finished difference Result 771 states and 1010 transitions. [2022-11-25 18:07:54,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:07:54,804 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 [2022-11-25 18:07:54,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:54,807 INFO L225 Difference]: With dead ends: 771 [2022-11-25 18:07:54,807 INFO L226 Difference]: Without dead ends: 707 [2022-11-25 18:07:54,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:07:54,808 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 2395 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:54,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2395 Valid, 1926 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:07:54,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-25 18:07:54,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 402. [2022-11-25 18:07:54,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.3005181347150259) internal successors, (502), 401 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:54,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 502 transitions. [2022-11-25 18:07:54,923 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 502 transitions. Word has length 80 [2022-11-25 18:07:54,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:54,923 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 502 transitions. [2022-11-25 18:07:54,924 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) [2022-11-25 18:07:54,924 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 502 transitions. [2022-11-25 18:07:54,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 18:07:54,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:54,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:54,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-25 18:07:54,925 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:54,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:54,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1780916949, now seen corresponding path program 1 times [2022-11-25 18:07:54,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:54,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493613898] [2022-11-25 18:07:54,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:54,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:55,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:55,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:55,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493613898] [2022-11-25 18:07:55,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493613898] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:55,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:55,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:07:55,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150788374] [2022-11-25 18:07:55,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:55,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:07:55,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:55,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:07:55,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:07:55,156 INFO L87 Difference]: Start difference. First operand 402 states and 502 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) [2022-11-25 18:07:56,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:56,496 INFO L93 Difference]: Finished difference Result 820 states and 1071 transitions. [2022-11-25 18:07:56,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:07:56,496 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 [2022-11-25 18:07:56,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:56,500 INFO L225 Difference]: With dead ends: 820 [2022-11-25 18:07:56,500 INFO L226 Difference]: Without dead ends: 739 [2022-11-25 18:07:56,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:07:56,501 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 1870 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1870 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:56,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1870 Valid, 1605 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 18:07:56,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2022-11-25 18:07:56,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 402. [2022-11-25 18:07:56,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.2979274611398963) internal successors, (501), 401 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:56,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 501 transitions. [2022-11-25 18:07:56,624 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 501 transitions. Word has length 80 [2022-11-25 18:07:56,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:56,624 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 501 transitions. [2022-11-25 18:07:56,624 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) [2022-11-25 18:07:56,624 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 501 transitions. [2022-11-25 18:07:56,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 18:07:56,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:56,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:56,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-25 18:07:56,626 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:56,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:56,627 INFO L85 PathProgramCache]: Analyzing trace with hash 601853245, now seen corresponding path program 1 times [2022-11-25 18:07:56,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:56,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810408007] [2022-11-25 18:07:56,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:56,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:56,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:56,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:56,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810408007] [2022-11-25 18:07:56,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810408007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:56,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:56,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:07:56,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358119237] [2022-11-25 18:07:56,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:56,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:07:56,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:56,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:07:56,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:07:56,961 INFO L87 Difference]: Start difference. First operand 402 states and 501 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) [2022-11-25 18:07:58,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:07:58,527 INFO L93 Difference]: Finished difference Result 776 states and 1013 transitions. [2022-11-25 18:07:58,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:07:58,528 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 [2022-11-25 18:07:58,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:07:58,531 INFO L225 Difference]: With dead ends: 776 [2022-11-25 18:07:58,531 INFO L226 Difference]: Without dead ends: 707 [2022-11-25 18:07:58,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:07:58,532 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 2366 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2366 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:07:58,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2366 Valid, 1977 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:07:58,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-25 18:07:58,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 402. [2022-11-25 18:07:58,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.2953367875647668) internal successors, (500), 401 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:07:58,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 500 transitions. [2022-11-25 18:07:58,699 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 500 transitions. Word has length 80 [2022-11-25 18:07:58,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:07:58,699 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 500 transitions. [2022-11-25 18:07:58,699 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) [2022-11-25 18:07:58,700 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 500 transitions. [2022-11-25 18:07:58,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 18:07:58,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:07:58,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:07:58,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-25 18:07:58,701 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:07:58,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:07:58,702 INFO L85 PathProgramCache]: Analyzing trace with hash -953833721, now seen corresponding path program 1 times [2022-11-25 18:07:58,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:07:58,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289066390] [2022-11-25 18:07:58,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:07:58,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:07:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:07:58,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:07:58,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:07:58,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289066390] [2022-11-25 18:07:58,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289066390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:07:58,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:07:58,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:07:58,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661515987] [2022-11-25 18:07:58,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:07:58,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:07:58,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:07:58,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:07:58,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:07:58,955 INFO L87 Difference]: Start difference. First operand 402 states and 500 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) [2022-11-25 18:08:00,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:00,486 INFO L93 Difference]: Finished difference Result 851 states and 1111 transitions. [2022-11-25 18:08:00,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:08:00,487 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 [2022-11-25 18:08:00,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:00,491 INFO L225 Difference]: With dead ends: 851 [2022-11-25 18:08:00,491 INFO L226 Difference]: Without dead ends: 747 [2022-11-25 18:08:00,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:08:00,492 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 1858 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1858 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:00,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1858 Valid, 1945 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:08:00,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2022-11-25 18:08:00,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 402. [2022-11-25 18:08:00,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.2927461139896372) internal successors, (499), 401 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:00,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 499 transitions. [2022-11-25 18:08:00,654 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 499 transitions. Word has length 80 [2022-11-25 18:08:00,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:00,655 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 499 transitions. [2022-11-25 18:08:00,655 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) [2022-11-25 18:08:00,655 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 499 transitions. [2022-11-25 18:08:00,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 18:08:00,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:00,656 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:00,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-25 18:08:00,656 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:00,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:00,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1702835234, now seen corresponding path program 1 times [2022-11-25 18:08:00,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:00,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447246278] [2022-11-25 18:08:00,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:00,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:00,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:00,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:00,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447246278] [2022-11-25 18:08:00,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447246278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:00,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:00,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:08:00,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602694842] [2022-11-25 18:08:00,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:00,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:08:00,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:00,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:08:00,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:08:00,931 INFO L87 Difference]: Start difference. First operand 402 states and 499 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) [2022-11-25 18:08:02,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:02,481 INFO L93 Difference]: Finished difference Result 712 states and 915 transitions. [2022-11-25 18:08:02,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:08:02,481 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 [2022-11-25 18:08:02,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:02,485 INFO L225 Difference]: With dead ends: 712 [2022-11-25 18:08:02,485 INFO L226 Difference]: Without dead ends: 707 [2022-11-25 18:08:02,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:08:02,486 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 2356 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2356 SdHoareTripleChecker+Valid, 1978 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:02,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2356 Valid, 1978 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:08:02,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-25 18:08:02,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 402. [2022-11-25 18:08:02,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.2901554404145077) internal successors, (498), 401 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:02,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 498 transitions. [2022-11-25 18:08:02,630 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 498 transitions. Word has length 80 [2022-11-25 18:08:02,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:02,630 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 498 transitions. [2022-11-25 18:08:02,630 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) [2022-11-25 18:08:02,630 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 498 transitions. [2022-11-25 18:08:02,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 18:08:02,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:02,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:02,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-25 18:08:02,632 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:02,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:02,632 INFO L85 PathProgramCache]: Analyzing trace with hash 209361868, now seen corresponding path program 1 times [2022-11-25 18:08:02,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:02,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116716881] [2022-11-25 18:08:02,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:02,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:02,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:02,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:02,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116716881] [2022-11-25 18:08:02,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116716881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:02,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:02,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:08:02,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358578615] [2022-11-25 18:08:02,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:02,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:08:02,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:02,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:08:02,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:08:02,870 INFO L87 Difference]: Start difference. First operand 402 states and 498 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) [2022-11-25 18:08:04,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:04,343 INFO L93 Difference]: Finished difference Result 756 states and 970 transitions. [2022-11-25 18:08:04,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:08:04,344 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 [2022-11-25 18:08:04,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:04,348 INFO L225 Difference]: With dead ends: 756 [2022-11-25 18:08:04,348 INFO L226 Difference]: Without dead ends: 739 [2022-11-25 18:08:04,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:08:04,349 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 2313 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2313 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:04,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2313 Valid, 1990 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 18:08:04,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2022-11-25 18:08:04,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 402. [2022-11-25 18:08:04,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.2875647668393781) internal successors, (497), 401 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:04,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 497 transitions. [2022-11-25 18:08:04,559 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 497 transitions. Word has length 80 [2022-11-25 18:08:04,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:04,560 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 497 transitions. [2022-11-25 18:08:04,560 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) [2022-11-25 18:08:04,560 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 497 transitions. [2022-11-25 18:08:04,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 18:08:04,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:04,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:04,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-25 18:08:04,562 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:04,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:04,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1191963760, now seen corresponding path program 1 times [2022-11-25 18:08:04,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:04,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256902812] [2022-11-25 18:08:04,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:04,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:04,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:04,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:04,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256902812] [2022-11-25 18:08:04,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256902812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:04,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:04,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:08:04,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37552155] [2022-11-25 18:08:04,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:04,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:08:04,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:04,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:08:04,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:08:04,833 INFO L87 Difference]: Start difference. First operand 402 states and 497 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) [2022-11-25 18:08:06,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:06,429 INFO L93 Difference]: Finished difference Result 773 states and 1006 transitions. [2022-11-25 18:08:06,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:08:06,429 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 [2022-11-25 18:08:06,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:06,433 INFO L225 Difference]: With dead ends: 773 [2022-11-25 18:08:06,433 INFO L226 Difference]: Without dead ends: 707 [2022-11-25 18:08:06,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:08:06,435 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 2326 mSDsluCounter, 1638 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2326 SdHoareTripleChecker+Valid, 2029 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:06,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2326 Valid, 2029 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 18:08:06,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-25 18:08:06,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 402. [2022-11-25 18:08:06,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.2849740932642486) internal successors, (496), 401 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:06,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 496 transitions. [2022-11-25 18:08:06,599 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 496 transitions. Word has length 80 [2022-11-25 18:08:06,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:06,600 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 496 transitions. [2022-11-25 18:08:06,600 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) [2022-11-25 18:08:06,600 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 496 transitions. [2022-11-25 18:08:06,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 18:08:06,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:06,601 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:06,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-25 18:08:06,601 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:06,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:06,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1836995487, now seen corresponding path program 1 times [2022-11-25 18:08:06,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:06,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439270588] [2022-11-25 18:08:06,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:06,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:07,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:07,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:07,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439270588] [2022-11-25 18:08:07,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439270588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:07,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:07,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:08:07,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189366174] [2022-11-25 18:08:07,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:07,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:08:07,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:07,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:08:07,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:08:07,033 INFO L87 Difference]: Start difference. First operand 402 states and 496 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:09,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:09,938 INFO L93 Difference]: Finished difference Result 1041 states and 1388 transitions. [2022-11-25 18:08:09,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 18:08:09,939 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-25 18:08:09,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:09,941 INFO L225 Difference]: With dead ends: 1041 [2022-11-25 18:08:09,941 INFO L226 Difference]: Without dead ends: 1036 [2022-11-25 18:08:09,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 18:08:09,942 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 4096 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4096 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 1932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:09,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4096 Valid, 2321 Invalid, 1932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 18:08:09,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2022-11-25 18:08:10,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 406. [2022-11-25 18:08:10,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 390 states have (on average 1.2820512820512822) internal successors, (500), 405 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:10,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 500 transitions. [2022-11-25 18:08:10,093 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 500 transitions. Word has length 80 [2022-11-25 18:08:10,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:10,093 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 500 transitions. [2022-11-25 18:08:10,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:10,094 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 500 transitions. [2022-11-25 18:08:10,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 18:08:10,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:10,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:10,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-25 18:08:10,095 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:10,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:10,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1478263256, now seen corresponding path program 1 times [2022-11-25 18:08:10,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:10,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355419090] [2022-11-25 18:08:10,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:10,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:10,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:10,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:10,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355419090] [2022-11-25 18:08:10,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355419090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:10,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:10,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:08:10,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263716674] [2022-11-25 18:08:10,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:10,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:08:10,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:10,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:08:10,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:08:10,318 INFO L87 Difference]: Start difference. First operand 406 states and 500 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:11,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:11,769 INFO L93 Difference]: Finished difference Result 776 states and 1007 transitions. [2022-11-25 18:08:11,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:08:11,770 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 18:08:11,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:11,772 INFO L225 Difference]: With dead ends: 776 [2022-11-25 18:08:11,772 INFO L226 Difference]: Without dead ends: 707 [2022-11-25 18:08:11,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:08:11,773 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 2700 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2700 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 1251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:11,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2700 Valid, 1722 Invalid, 1251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 18:08:11,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-25 18:08:11,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 402. [2022-11-25 18:08:11,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.282383419689119) internal successors, (495), 401 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:11,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 495 transitions. [2022-11-25 18:08:11,912 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 495 transitions. Word has length 81 [2022-11-25 18:08:11,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:11,912 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 495 transitions. [2022-11-25 18:08:11,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:11,912 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 495 transitions. [2022-11-25 18:08:11,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 18:08:11,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:11,913 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] [2022-11-25 18:08:11,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-25 18:08:11,914 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:11,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:11,914 INFO L85 PathProgramCache]: Analyzing trace with hash -397757345, now seen corresponding path program 1 times [2022-11-25 18:08:11,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:11,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776286502] [2022-11-25 18:08:11,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:11,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:12,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:12,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:12,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776286502] [2022-11-25 18:08:12,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776286502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:12,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:12,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:08:12,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894405117] [2022-11-25 18:08:12,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:12,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:08:12,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:12,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:08:12,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:08:12,138 INFO L87 Difference]: Start difference. First operand 402 states and 495 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:13,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:13,621 INFO L93 Difference]: Finished difference Result 712 states and 910 transitions. [2022-11-25 18:08:13,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:08:13,622 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 18:08:13,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:13,624 INFO L225 Difference]: With dead ends: 712 [2022-11-25 18:08:13,625 INFO L226 Difference]: Without dead ends: 707 [2022-11-25 18:08:13,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:08:13,626 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 1875 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1875 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:13,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1875 Valid, 1779 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 18:08:13,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-25 18:08:13,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 398. [2022-11-25 18:08:13,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.2827225130890052) internal successors, (490), 397 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:13,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 490 transitions. [2022-11-25 18:08:13,826 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 490 transitions. Word has length 81 [2022-11-25 18:08:13,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:13,827 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 490 transitions. [2022-11-25 18:08:13,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:13,827 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 490 transitions. [2022-11-25 18:08:13,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 18:08:13,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:13,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:13,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-25 18:08:13,828 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:13,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:13,829 INFO L85 PathProgramCache]: Analyzing trace with hash 500388118, now seen corresponding path program 1 times [2022-11-25 18:08:13,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:13,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823569600] [2022-11-25 18:08:13,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:13,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:14,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:14,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:14,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823569600] [2022-11-25 18:08:14,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823569600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:14,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:14,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:08:14,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353828520] [2022-11-25 18:08:14,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:14,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:08:14,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:14,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:08:14,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:08:14,047 INFO L87 Difference]: Start difference. First operand 398 states and 490 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:15,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:15,582 INFO L93 Difference]: Finished difference Result 773 states and 1002 transitions. [2022-11-25 18:08:15,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:08:15,583 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 18:08:15,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:15,585 INFO L225 Difference]: With dead ends: 773 [2022-11-25 18:08:15,585 INFO L226 Difference]: Without dead ends: 707 [2022-11-25 18:08:15,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:08:15,586 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 2457 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2457 SdHoareTripleChecker+Valid, 1777 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:15,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2457 Valid, 1777 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:08:15,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-25 18:08:15,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 394. [2022-11-25 18:08:15,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.283068783068783) internal successors, (485), 393 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:15,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 485 transitions. [2022-11-25 18:08:15,754 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 485 transitions. Word has length 81 [2022-11-25 18:08:15,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:15,755 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 485 transitions. [2022-11-25 18:08:15,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:15,755 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 485 transitions. [2022-11-25 18:08:15,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 18:08:15,756 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:15,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:15,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-25 18:08:15,756 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:15,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:15,756 INFO L85 PathProgramCache]: Analyzing trace with hash 846117342, now seen corresponding path program 1 times [2022-11-25 18:08:15,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:15,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559500637] [2022-11-25 18:08:15,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:15,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:15,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:15,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:15,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559500637] [2022-11-25 18:08:15,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559500637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:15,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:15,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:08:15,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654709324] [2022-11-25 18:08:15,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:15,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:08:15,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:15,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:08:15,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:08:15,972 INFO L87 Difference]: Start difference. First operand 394 states and 485 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:17,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:17,529 INFO L93 Difference]: Finished difference Result 712 states and 908 transitions. [2022-11-25 18:08:17,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:08:17,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 18:08:17,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:17,532 INFO L225 Difference]: With dead ends: 712 [2022-11-25 18:08:17,532 INFO L226 Difference]: Without dead ends: 707 [2022-11-25 18:08:17,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:08:17,533 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 1857 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1857 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:17,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1857 Valid, 1795 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:08:17,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-25 18:08:17,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 390. [2022-11-25 18:08:17,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.2834224598930482) internal successors, (480), 389 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:17,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 480 transitions. [2022-11-25 18:08:17,727 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 480 transitions. Word has length 81 [2022-11-25 18:08:17,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:17,727 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 480 transitions. [2022-11-25 18:08:17,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:17,728 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 480 transitions. [2022-11-25 18:08:17,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 18:08:17,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:17,729 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, 1, 1, 1, 1, 1] [2022-11-25 18:08:17,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-25 18:08:17,729 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:17,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:17,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1125287833, now seen corresponding path program 1 times [2022-11-25 18:08:17,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:17,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890680953] [2022-11-25 18:08:17,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:17,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:18,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:18,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:18,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890680953] [2022-11-25 18:08:18,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890680953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:18,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:18,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:08:18,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289064085] [2022-11-25 18:08:18,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:18,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 18:08:18,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:18,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 18:08:18,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:08:18,340 INFO L87 Difference]: Start difference. First operand 390 states and 480 transitions. Second operand has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:20,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:20,096 INFO L93 Difference]: Finished difference Result 1027 states and 1321 transitions. [2022-11-25 18:08:20,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:08:20,097 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-25 18:08:20,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:20,098 INFO L225 Difference]: With dead ends: 1027 [2022-11-25 18:08:20,099 INFO L226 Difference]: Without dead ends: 846 [2022-11-25 18:08:20,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-11-25 18:08:20,100 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 2532 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2532 SdHoareTripleChecker+Valid, 2557 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:20,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2532 Valid, 2557 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 18:08:20,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2022-11-25 18:08:20,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 273. [2022-11-25 18:08:20,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 262 states have (on average 1.2709923664122138) internal successors, (333), 272 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:20,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 333 transitions. [2022-11-25 18:08:20,276 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 333 transitions. Word has length 82 [2022-11-25 18:08:20,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:20,277 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 333 transitions. [2022-11-25 18:08:20,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:20,277 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 333 transitions. [2022-11-25 18:08:20,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 18:08:20,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:20,278 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:20,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-25 18:08:20,278 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:20,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:20,279 INFO L85 PathProgramCache]: Analyzing trace with hash 996849594, now seen corresponding path program 1 times [2022-11-25 18:08:20,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:20,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57498770] [2022-11-25 18:08:20,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:20,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:20,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:20,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:20,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57498770] [2022-11-25 18:08:20,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57498770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:20,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:20,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 18:08:20,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409653712] [2022-11-25 18:08:20,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:20,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:08:20,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:20,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:08:20,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:08:20,911 INFO L87 Difference]: Start difference. First operand 273 states and 333 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:22,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:22,507 INFO L93 Difference]: Finished difference Result 786 states and 1055 transitions. [2022-11-25 18:08:22,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 18:08:22,507 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-25 18:08:22,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:22,508 INFO L225 Difference]: With dead ends: 786 [2022-11-25 18:08:22,509 INFO L226 Difference]: Without dead ends: 689 [2022-11-25 18:08:22,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-25 18:08:22,510 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 2031 mSDsluCounter, 3103 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2031 SdHoareTripleChecker+Valid, 3848 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:22,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2031 Valid, 3848 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 18:08:22,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2022-11-25 18:08:22,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 240. [2022-11-25 18:08:22,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 232 states have (on average 1.2629310344827587) internal successors, (293), 239 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:22,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 293 transitions. [2022-11-25 18:08:22,633 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 293 transitions. Word has length 82 [2022-11-25 18:08:22,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:22,633 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 293 transitions. [2022-11-25 18:08:22,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:22,633 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 293 transitions. [2022-11-25 18:08:22,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 18:08:22,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:22,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:22,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-25 18:08:22,635 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:22,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:22,635 INFO L85 PathProgramCache]: Analyzing trace with hash 504555190, now seen corresponding path program 1 times [2022-11-25 18:08:22,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:22,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314199562] [2022-11-25 18:08:22,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:22,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:23,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:23,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:23,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314199562] [2022-11-25 18:08:23,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314199562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:23,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:23,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 18:08:23,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347776999] [2022-11-25 18:08:23,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:23,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 18:08:23,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:23,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 18:08:23,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:08:23,252 INFO L87 Difference]: Start difference. First operand 240 states and 293 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:24,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:24,761 INFO L93 Difference]: Finished difference Result 612 states and 786 transitions. [2022-11-25 18:08:24,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:08:24,764 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-25 18:08:24,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:24,765 INFO L225 Difference]: With dead ends: 612 [2022-11-25 18:08:24,765 INFO L226 Difference]: Without dead ends: 544 [2022-11-25 18:08:24,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-11-25 18:08:24,766 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 1776 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1776 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:24,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1776 Valid, 2121 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 18:08:24,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-11-25 18:08:24,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 236. [2022-11-25 18:08:24,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 229 states have (on average 1.25764192139738) internal successors, (288), 235 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:24,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 288 transitions. [2022-11-25 18:08:24,897 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 288 transitions. Word has length 82 [2022-11-25 18:08:24,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:24,898 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 288 transitions. [2022-11-25 18:08:24,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:24,898 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 288 transitions. [2022-11-25 18:08:24,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 18:08:24,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:24,899 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:24,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-25 18:08:24,900 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:24,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:24,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1900616581, now seen corresponding path program 1 times [2022-11-25 18:08:24,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:24,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76438650] [2022-11-25 18:08:24,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:24,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:24,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:25,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:25,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:25,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76438650] [2022-11-25 18:08:25,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76438650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:25,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:25,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-25 18:08:25,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244729353] [2022-11-25 18:08:25,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:25,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 18:08:25,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:25,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 18:08:25,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-25 18:08:25,862 INFO L87 Difference]: Start difference. First operand 236 states and 288 transitions. Second operand has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:28,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:28,539 INFO L93 Difference]: Finished difference Result 789 states and 1053 transitions. [2022-11-25 18:08:28,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 18:08:28,540 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-25 18:08:28,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:28,541 INFO L225 Difference]: With dead ends: 789 [2022-11-25 18:08:28,542 INFO L226 Difference]: Without dead ends: 666 [2022-11-25 18:08:28,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=275, Invalid=985, Unknown=0, NotChecked=0, Total=1260 [2022-11-25 18:08:28,543 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 2025 mSDsluCounter, 4523 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2025 SdHoareTripleChecker+Valid, 5116 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:28,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2025 Valid, 5116 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 18:08:28,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-11-25 18:08:28,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 212. [2022-11-25 18:08:28,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 206 states have (on average 1.2475728155339805) internal successors, (257), 211 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:28,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 257 transitions. [2022-11-25 18:08:28,664 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 257 transitions. Word has length 82 [2022-11-25 18:08:28,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:28,664 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 257 transitions. [2022-11-25 18:08:28,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:28,664 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 257 transitions. [2022-11-25 18:08:28,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-25 18:08:28,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:28,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:28,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-25 18:08:28,665 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:28,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:28,666 INFO L85 PathProgramCache]: Analyzing trace with hash -823147502, now seen corresponding path program 1 times [2022-11-25 18:08:28,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:28,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066415668] [2022-11-25 18:08:28,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:28,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:28,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:28,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:28,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066415668] [2022-11-25 18:08:28,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066415668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:28,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:28,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:08:28,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546742576] [2022-11-25 18:08:28,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:28,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:08:28,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:28,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:08:28,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:08:28,943 INFO L87 Difference]: Start difference. First operand 212 states and 257 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) [2022-11-25 18:08:29,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:29,780 INFO L93 Difference]: Finished difference Result 322 states and 400 transitions. [2022-11-25 18:08:29,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 18:08:29,781 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 [2022-11-25 18:08:29,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:29,782 INFO L225 Difference]: With dead ends: 322 [2022-11-25 18:08:29,782 INFO L226 Difference]: Without dead ends: 315 [2022-11-25 18:08:29,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2022-11-25 18:08:29,783 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 1156 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:29,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 845 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 18:08:29,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-11-25 18:08:29,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 212. [2022-11-25 18:08:29,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 206 states have (on average 1.2427184466019416) internal successors, (256), 211 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:29,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 256 transitions. [2022-11-25 18:08:29,904 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 256 transitions. Word has length 83 [2022-11-25 18:08:29,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:29,904 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 256 transitions. [2022-11-25 18:08:29,904 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) [2022-11-25 18:08:29,905 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 256 transitions. [2022-11-25 18:08:29,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-25 18:08:29,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:29,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:29,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-25 18:08:29,906 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:29,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:29,907 INFO L85 PathProgramCache]: Analyzing trace with hash -892730834, now seen corresponding path program 1 times [2022-11-25 18:08:29,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:29,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524718583] [2022-11-25 18:08:29,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:29,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:30,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:30,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:30,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524718583] [2022-11-25 18:08:30,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524718583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:30,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:30,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:08:30,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026114708] [2022-11-25 18:08:30,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:30,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:08:30,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:30,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:08:30,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:08:30,118 INFO L87 Difference]: Start difference. First operand 212 states and 256 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) [2022-11-25 18:08:31,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:31,300 INFO L93 Difference]: Finished difference Result 527 states and 702 transitions. [2022-11-25 18:08:31,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:08:31,301 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 [2022-11-25 18:08:31,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:31,301 INFO L225 Difference]: With dead ends: 527 [2022-11-25 18:08:31,301 INFO L226 Difference]: Without dead ends: 445 [2022-11-25 18:08:31,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:08:31,302 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 808 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:31,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 1037 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 18:08:31,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-11-25 18:08:31,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 212. [2022-11-25 18:08:31,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 206 states have (on average 1.2378640776699028) internal successors, (255), 211 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:31,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 255 transitions. [2022-11-25 18:08:31,447 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 255 transitions. Word has length 83 [2022-11-25 18:08:31,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:31,447 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 255 transitions. [2022-11-25 18:08:31,447 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) [2022-11-25 18:08:31,447 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 255 transitions. [2022-11-25 18:08:31,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-25 18:08:31,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:31,448 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:31,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-25 18:08:31,449 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:31,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:31,449 INFO L85 PathProgramCache]: Analyzing trace with hash -993145316, now seen corresponding path program 1 times [2022-11-25 18:08:31,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:31,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013598553] [2022-11-25 18:08:31,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:31,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:32,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:32,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:32,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013598553] [2022-11-25 18:08:32,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013598553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:32,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:32,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 18:08:32,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971926699] [2022-11-25 18:08:32,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:32,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 18:08:32,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:32,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 18:08:32,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:08:32,092 INFO L87 Difference]: Start difference. First operand 212 states and 255 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:34,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:34,073 INFO L93 Difference]: Finished difference Result 495 states and 629 transitions. [2022-11-25 18:08:34,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:08:34,074 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-11-25 18:08:34,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:34,075 INFO L225 Difference]: With dead ends: 495 [2022-11-25 18:08:34,075 INFO L226 Difference]: Without dead ends: 491 [2022-11-25 18:08:34,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-11-25 18:08:34,076 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 1563 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:34,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1563 Valid, 1906 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 18:08:34,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-11-25 18:08:34,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 208. [2022-11-25 18:08:34,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.2364532019704433) internal successors, (251), 207 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:34,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 251 transitions. [2022-11-25 18:08:34,277 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 251 transitions. Word has length 83 [2022-11-25 18:08:34,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:34,278 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 251 transitions. [2022-11-25 18:08:34,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:34,278 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 251 transitions. [2022-11-25 18:08:34,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-25 18:08:34,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:34,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:34,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-25 18:08:34,280 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:34,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:34,280 INFO L85 PathProgramCache]: Analyzing trace with hash 2054330386, now seen corresponding path program 1 times [2022-11-25 18:08:34,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:34,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432426122] [2022-11-25 18:08:34,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:34,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:34,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:34,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:34,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432426122] [2022-11-25 18:08:34,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432426122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:34,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:34,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 18:08:34,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373561342] [2022-11-25 18:08:34,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:34,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 18:08:34,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:34,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 18:08:34,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:08:34,799 INFO L87 Difference]: Start difference. First operand 208 states and 251 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:36,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:36,110 INFO L93 Difference]: Finished difference Result 541 states and 707 transitions. [2022-11-25 18:08:36,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:08:36,111 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-11-25 18:08:36,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:36,112 INFO L225 Difference]: With dead ends: 541 [2022-11-25 18:08:36,112 INFO L226 Difference]: Without dead ends: 476 [2022-11-25 18:08:36,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-11-25 18:08:36,113 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 1574 mSDsluCounter, 1685 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:36,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 2020 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 18:08:36,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-11-25 18:08:36,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 207. [2022-11-25 18:08:36,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.2326732673267327) internal successors, (249), 206 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:36,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 249 transitions. [2022-11-25 18:08:36,287 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 249 transitions. Word has length 83 [2022-11-25 18:08:36,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:36,288 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 249 transitions. [2022-11-25 18:08:36,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:36,288 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 249 transitions. [2022-11-25 18:08:36,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-25 18:08:36,294 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:36,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:36,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-25 18:08:36,295 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:36,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:36,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1521304832, now seen corresponding path program 1 times [2022-11-25 18:08:36,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:36,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51036860] [2022-11-25 18:08:36,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:36,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:36,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:36,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:36,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51036860] [2022-11-25 18:08:36,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51036860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:36,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:36,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 18:08:36,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526396000] [2022-11-25 18:08:36,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:36,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 18:08:36,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:36,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 18:08:36,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:08:36,891 INFO L87 Difference]: Start difference. First operand 207 states and 249 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:38,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:38,461 INFO L93 Difference]: Finished difference Result 488 states and 632 transitions. [2022-11-25 18:08:38,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:08:38,461 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-11-25 18:08:38,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:38,462 INFO L225 Difference]: With dead ends: 488 [2022-11-25 18:08:38,462 INFO L226 Difference]: Without dead ends: 478 [2022-11-25 18:08:38,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-11-25 18:08:38,463 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 1134 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 3381 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:38,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 3381 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 18:08:38,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-11-25 18:08:38,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 197. [2022-11-25 18:08:38,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 193 states have (on average 1.233160621761658) internal successors, (238), 196 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:38,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 238 transitions. [2022-11-25 18:08:38,596 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 238 transitions. Word has length 83 [2022-11-25 18:08:38,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:38,596 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 238 transitions. [2022-11-25 18:08:38,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:38,596 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 238 transitions. [2022-11-25 18:08:38,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-25 18:08:38,597 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:38,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:38,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-25 18:08:38,598 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:38,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:38,598 INFO L85 PathProgramCache]: Analyzing trace with hash -7222703, now seen corresponding path program 1 times [2022-11-25 18:08:38,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:38,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406975598] [2022-11-25 18:08:38,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:38,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:39,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:39,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:39,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406975598] [2022-11-25 18:08:39,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406975598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:39,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:39,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:08:39,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550471136] [2022-11-25 18:08:39,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:39,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:08:39,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:39,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:08:39,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:08:39,023 INFO L87 Difference]: Start difference. First operand 197 states and 238 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:40,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:40,941 INFO L93 Difference]: Finished difference Result 472 states and 619 transitions. [2022-11-25 18:08:40,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 18:08:40,942 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-11-25 18:08:40,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:40,943 INFO L225 Difference]: With dead ends: 472 [2022-11-25 18:08:40,943 INFO L226 Difference]: Without dead ends: 465 [2022-11-25 18:08:40,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2022-11-25 18:08:40,944 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 1859 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1859 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:40,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1859 Valid, 974 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 18:08:40,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-11-25 18:08:41,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 201. [2022-11-25 18:08:41,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 197 states have (on average 1.2284263959390862) internal successors, (242), 200 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:41,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 242 transitions. [2022-11-25 18:08:41,096 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 242 transitions. Word has length 84 [2022-11-25 18:08:41,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:41,096 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 242 transitions. [2022-11-25 18:08:41,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:41,097 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 242 transitions. [2022-11-25 18:08:41,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-25 18:08:41,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:41,098 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:41,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-25 18:08:41,098 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:41,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:41,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1767300528, now seen corresponding path program 1 times [2022-11-25 18:08:41,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:41,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554023075] [2022-11-25 18:08:41,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:41,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:41,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:41,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:41,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554023075] [2022-11-25 18:08:41,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554023075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:41,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:41,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 18:08:41,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203821369] [2022-11-25 18:08:41,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:41,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 18:08:41,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:41,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 18:08:41,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:08:41,728 INFO L87 Difference]: Start difference. First operand 201 states and 242 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 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) [2022-11-25 18:08:43,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:43,888 INFO L93 Difference]: Finished difference Result 722 states and 980 transitions. [2022-11-25 18:08:43,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 18:08:43,888 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 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 [2022-11-25 18:08:43,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:43,890 INFO L225 Difference]: With dead ends: 722 [2022-11-25 18:08:43,890 INFO L226 Difference]: Without dead ends: 716 [2022-11-25 18:08:43,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-25 18:08:43,890 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 1563 mSDsluCounter, 3242 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 3718 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:43,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1563 Valid, 3718 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 18:08:43,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-11-25 18:08:44,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 195. [2022-11-25 18:08:44,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 192 states have (on average 1.2291666666666667) internal successors, (236), 194 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:44,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 236 transitions. [2022-11-25 18:08:44,038 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 236 transitions. Word has length 85 [2022-11-25 18:08:44,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:44,038 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 236 transitions. [2022-11-25 18:08:44,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 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) [2022-11-25 18:08:44,038 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 236 transitions. [2022-11-25 18:08:44,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-25 18:08:44,039 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:44,039 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] [2022-11-25 18:08:44,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-25 18:08:44,040 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:44,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:44,040 INFO L85 PathProgramCache]: Analyzing trace with hash 645292930, now seen corresponding path program 1 times [2022-11-25 18:08:44,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:44,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417522520] [2022-11-25 18:08:44,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:44,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:45,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:45,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:45,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417522520] [2022-11-25 18:08:45,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417522520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:45,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:45,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-25 18:08:45,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591584686] [2022-11-25 18:08:45,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:45,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-25 18:08:45,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:45,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-25 18:08:45,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2022-11-25 18:08:45,723 INFO L87 Difference]: Start difference. First operand 195 states and 236 transitions. Second operand has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 26 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) [2022-11-25 18:08:52,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:52,089 INFO L93 Difference]: Finished difference Result 741 states and 957 transitions. [2022-11-25 18:08:52,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-25 18:08:52,089 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 26 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 [2022-11-25 18:08:52,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:52,091 INFO L225 Difference]: With dead ends: 741 [2022-11-25 18:08:52,091 INFO L226 Difference]: Without dead ends: 733 [2022-11-25 18:08:52,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=365, Invalid=1891, Unknown=0, NotChecked=0, Total=2256 [2022-11-25 18:08:52,092 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 2189 mSDsluCounter, 8531 mSDsCounter, 0 mSdLazyCounter, 4644 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2189 SdHoareTripleChecker+Valid, 9166 SdHoareTripleChecker+Invalid, 4663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 4644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:52,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2189 Valid, 9166 Invalid, 4663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 4644 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-25 18:08:52,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2022-11-25 18:08:52,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 214. [2022-11-25 18:08:52,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 211 states have (on average 1.2274881516587677) internal successors, (259), 213 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:52,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 259 transitions. [2022-11-25 18:08:52,272 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 259 transitions. Word has length 85 [2022-11-25 18:08:52,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:52,273 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 259 transitions. [2022-11-25 18:08:52,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 26 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) [2022-11-25 18:08:52,273 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 259 transitions. [2022-11-25 18:08:52,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-25 18:08:52,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:52,274 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] [2022-11-25 18:08:52,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-25 18:08:52,274 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:52,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:52,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1708289536, now seen corresponding path program 1 times [2022-11-25 18:08:52,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:52,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286009021] [2022-11-25 18:08:52,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:52,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:52,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:52,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:52,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286009021] [2022-11-25 18:08:52,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286009021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:52,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:52,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:08:52,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302657757] [2022-11-25 18:08:52,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:52,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:08:52,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:52,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:08:52,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:08:52,522 INFO L87 Difference]: Start difference. First operand 214 states and 259 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) [2022-11-25 18:08:53,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:53,451 INFO L93 Difference]: Finished difference Result 310 states and 387 transitions. [2022-11-25 18:08:53,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 18:08:53,451 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 [2022-11-25 18:08:53,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:53,452 INFO L225 Difference]: With dead ends: 310 [2022-11-25 18:08:53,452 INFO L226 Difference]: Without dead ends: 303 [2022-11-25 18:08:53,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-11-25 18:08:53,453 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 495 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:53,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 825 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 18:08:53,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-11-25 18:08:53,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 210. [2022-11-25 18:08:53,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 207 states have (on average 1.2270531400966183) internal successors, (254), 209 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:53,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 254 transitions. [2022-11-25 18:08:53,648 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 254 transitions. Word has length 85 [2022-11-25 18:08:53,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:53,649 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 254 transitions. [2022-11-25 18:08:53,649 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) [2022-11-25 18:08:53,649 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 254 transitions. [2022-11-25 18:08:53,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-25 18:08:53,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:53,650 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] [2022-11-25 18:08:53,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-25 18:08:53,650 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:53,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:53,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1988293680, now seen corresponding path program 1 times [2022-11-25 18:08:53,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:53,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233677308] [2022-11-25 18:08:53,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:53,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:54,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:54,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:54,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233677308] [2022-11-25 18:08:54,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233677308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:54,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:54,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-25 18:08:54,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264387217] [2022-11-25 18:08:54,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:54,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 18:08:54,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:54,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 18:08:54,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-25 18:08:54,636 INFO L87 Difference]: Start difference. First operand 210 states and 254 transitions. Second operand has 17 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 17 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) [2022-11-25 18:08:57,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:57,077 INFO L93 Difference]: Finished difference Result 404 states and 515 transitions. [2022-11-25 18:08:57,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-25 18:08:57,078 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 17 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 [2022-11-25 18:08:57,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:57,079 INFO L225 Difference]: With dead ends: 404 [2022-11-25 18:08:57,079 INFO L226 Difference]: Without dead ends: 396 [2022-11-25 18:08:57,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=249, Invalid=873, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 18:08:57,080 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 1453 mSDsluCounter, 3308 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 3708 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:57,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1453 Valid, 3708 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:08:57,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-11-25 18:08:57,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 191. [2022-11-25 18:08:57,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 188 states have (on average 1.2234042553191489) internal successors, (230), 190 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:57,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 230 transitions. [2022-11-25 18:08:57,234 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 230 transitions. Word has length 86 [2022-11-25 18:08:57,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:57,235 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 230 transitions. [2022-11-25 18:08:57,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 17 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) [2022-11-25 18:08:57,235 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 230 transitions. [2022-11-25 18:08:57,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-25 18:08:57,235 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:57,235 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:57,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-25 18:08:57,236 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:57,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:57,236 INFO L85 PathProgramCache]: Analyzing trace with hash -479136402, now seen corresponding path program 1 times [2022-11-25 18:08:57,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:57,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819159812] [2022-11-25 18:08:57,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:57,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:57,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:57,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:57,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819159812] [2022-11-25 18:08:57,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819159812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:57,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:57,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 18:08:57,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622766965] [2022-11-25 18:08:57,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:57,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:08:57,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:57,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:08:57,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:08:57,696 INFO L87 Difference]: Start difference. First operand 191 states and 230 transitions. Second operand has 12 states, 12 states have (on average 7.166666666666667) 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) [2022-11-25 18:08:59,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:08:59,100 INFO L93 Difference]: Finished difference Result 428 states and 568 transitions. [2022-11-25 18:08:59,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 18:08:59,101 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.166666666666667) 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) Word has length 86 [2022-11-25 18:08:59,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:08:59,101 INFO L225 Difference]: With dead ends: 428 [2022-11-25 18:08:59,101 INFO L226 Difference]: Without dead ends: 416 [2022-11-25 18:08:59,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-11-25 18:08:59,102 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 938 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 2831 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:08:59,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 2831 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 18:08:59,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-11-25 18:08:59,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 179. [2022-11-25 18:08:59,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 177 states have (on average 1.231638418079096) internal successors, (218), 178 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:08:59,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 218 transitions. [2022-11-25 18:08:59,246 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 218 transitions. Word has length 86 [2022-11-25 18:08:59,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:08:59,246 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 218 transitions. [2022-11-25 18:08:59,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.166666666666667) 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) [2022-11-25 18:08:59,246 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 218 transitions. [2022-11-25 18:08:59,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-25 18:08:59,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:08:59,246 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] [2022-11-25 18:08:59,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-25 18:08:59,247 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:08:59,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:59,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1229983071, now seen corresponding path program 1 times [2022-11-25 18:08:59,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:59,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980685942] [2022-11-25 18:08:59,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:59,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:09:01,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:09:01,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:09:01,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980685942] [2022-11-25 18:09:01,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980685942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:09:01,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:09:01,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-25 18:09:01,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356127928] [2022-11-25 18:09:01,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:09:01,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-25 18:09:01,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:09:01,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-25 18:09:01,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2022-11-25 18:09:01,047 INFO L87 Difference]: Start difference. First operand 179 states and 218 transitions. Second operand has 27 states, 27 states have (on average 3.185185185185185) internal successors, (86), 27 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) [2022-11-25 18:09:07,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:09:07,406 INFO L93 Difference]: Finished difference Result 582 states and 756 transitions. [2022-11-25 18:09:07,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-25 18:09:07,407 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.185185185185185) internal successors, (86), 27 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 [2022-11-25 18:09:07,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:09:07,408 INFO L225 Difference]: With dead ends: 582 [2022-11-25 18:09:07,408 INFO L226 Difference]: Without dead ends: 574 [2022-11-25 18:09:07,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=441, Invalid=2315, Unknown=0, NotChecked=0, Total=2756 [2022-11-25 18:09:07,409 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 1811 mSDsluCounter, 6360 mSDsCounter, 0 mSdLazyCounter, 3647 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1811 SdHoareTripleChecker+Valid, 6838 SdHoareTripleChecker+Invalid, 3656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:09:07,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1811 Valid, 6838 Invalid, 3656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 3647 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-25 18:09:07,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-11-25 18:09:07,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 199. [2022-11-25 18:09:07,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 197 states have (on average 1.2233502538071066) internal successors, (241), 198 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:07,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 241 transitions. [2022-11-25 18:09:07,620 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 241 transitions. Word has length 86 [2022-11-25 18:09:07,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:09:07,621 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 241 transitions. [2022-11-25 18:09:07,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.185185185185185) internal successors, (86), 27 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) [2022-11-25 18:09:07,621 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 241 transitions. [2022-11-25 18:09:07,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-25 18:09:07,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:09:07,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:09:07,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-25 18:09:07,622 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:09:07,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:09:07,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1748334515, now seen corresponding path program 1 times [2022-11-25 18:09:07,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:09:07,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243579358] [2022-11-25 18:09:07,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:09:07,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:09:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:09:09,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:09:09,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:09:09,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243579358] [2022-11-25 18:09:09,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243579358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:09:09,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:09:09,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-25 18:09:09,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49142636] [2022-11-25 18:09:09,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:09:09,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-25 18:09:09,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:09:09,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-25 18:09:09,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-11-25 18:09:09,512 INFO L87 Difference]: Start difference. First operand 199 states and 241 transitions. Second operand has 25 states, 25 states have (on average 3.48) internal successors, (87), 25 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:15,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:09:15,033 INFO L93 Difference]: Finished difference Result 576 states and 750 transitions. [2022-11-25 18:09:15,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-25 18:09:15,033 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.48) internal successors, (87), 25 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-11-25 18:09:15,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:09:15,035 INFO L225 Difference]: With dead ends: 576 [2022-11-25 18:09:15,035 INFO L226 Difference]: Without dead ends: 568 [2022-11-25 18:09:15,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=481, Invalid=1775, Unknown=0, NotChecked=0, Total=2256 [2022-11-25 18:09:15,035 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 2053 mSDsluCounter, 6300 mSDsCounter, 0 mSdLazyCounter, 3005 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2053 SdHoareTripleChecker+Valid, 6805 SdHoareTripleChecker+Invalid, 3015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:09:15,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2053 Valid, 6805 Invalid, 3015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 3005 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-25 18:09:15,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2022-11-25 18:09:15,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 184. [2022-11-25 18:09:15,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 182 states have (on average 1.2252747252747254) internal successors, (223), 183 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:15,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 223 transitions. [2022-11-25 18:09:15,204 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 223 transitions. Word has length 87 [2022-11-25 18:09:15,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:09:15,204 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 223 transitions. [2022-11-25 18:09:15,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.48) internal successors, (87), 25 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:15,204 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 223 transitions. [2022-11-25 18:09:15,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-25 18:09:15,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:09:15,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:09:15,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-25 18:09:15,205 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:09:15,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:09:15,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1516849940, now seen corresponding path program 1 times [2022-11-25 18:09:15,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:09:15,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291361149] [2022-11-25 18:09:15,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:09:15,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:09:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:09:15,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:09:15,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:09:15,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291361149] [2022-11-25 18:09:15,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291361149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:09:15,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:09:15,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 18:09:15,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087240306] [2022-11-25 18:09:15,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:09:15,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:09:15,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:09:15,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:09:15,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:09:15,659 INFO L87 Difference]: Start difference. First operand 184 states and 223 transitions. Second operand has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:17,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:09:17,019 INFO L93 Difference]: Finished difference Result 457 states and 603 transitions. [2022-11-25 18:09:17,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 18:09:17,020 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-11-25 18:09:17,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:09:17,021 INFO L225 Difference]: With dead ends: 457 [2022-11-25 18:09:17,021 INFO L226 Difference]: Without dead ends: 428 [2022-11-25 18:09:17,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-25 18:09:17,021 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 1125 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 2214 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:09:17,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1125 Valid, 2214 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 18:09:17,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-11-25 18:09:17,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 155. [2022-11-25 18:09:17,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.2467532467532467) internal successors, (192), 154 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:17,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 192 transitions. [2022-11-25 18:09:17,173 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 192 transitions. Word has length 87 [2022-11-25 18:09:17,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:09:17,173 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 192 transitions. [2022-11-25 18:09:17,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:17,174 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 192 transitions. [2022-11-25 18:09:17,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 18:09:17,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:09:17,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:09:17,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-25 18:09:17,175 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:09:17,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:09:17,175 INFO L85 PathProgramCache]: Analyzing trace with hash 529887998, now seen corresponding path program 1 times [2022-11-25 18:09:17,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:09:17,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700953077] [2022-11-25 18:09:17,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:09:17,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:09:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:09:17,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:09:17,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:09:17,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700953077] [2022-11-25 18:09:17,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700953077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:09:17,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:09:17,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:09:17,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965208226] [2022-11-25 18:09:17,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:09:17,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:09:17,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:09:17,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:09:17,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:09:17,280 INFO L87 Difference]: Start difference. First operand 155 states and 192 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:18,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:09:18,938 INFO L93 Difference]: Finished difference Result 795 states and 1142 transitions. [2022-11-25 18:09:18,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 18:09:18,938 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 18:09:18,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:09:18,940 INFO L225 Difference]: With dead ends: 795 [2022-11-25 18:09:18,940 INFO L226 Difference]: Without dead ends: 731 [2022-11-25 18:09:18,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-25 18:09:18,941 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 1483 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 1527 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:09:18,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 1527 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:09:18,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-11-25 18:09:19,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 217. [2022-11-25 18:09:19,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 1.3148148148148149) internal successors, (284), 216 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:19,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 284 transitions. [2022-11-25 18:09:19,273 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 284 transitions. Word has length 112 [2022-11-25 18:09:19,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:09:19,274 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 284 transitions. [2022-11-25 18:09:19,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:19,274 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 284 transitions. [2022-11-25 18:09:19,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 18:09:19,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:09:19,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:09:19,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-25 18:09:19,275 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:09:19,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:09:19,275 INFO L85 PathProgramCache]: Analyzing trace with hash 257111127, now seen corresponding path program 1 times [2022-11-25 18:09:19,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:09:19,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065524633] [2022-11-25 18:09:19,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:09:19,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:09:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:09:19,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:09:19,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:09:19,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065524633] [2022-11-25 18:09:19,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065524633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:09:19,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:09:19,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:09:19,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552382354] [2022-11-25 18:09:19,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:09:19,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:09:19,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:09:19,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:09:19,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:09:19,380 INFO L87 Difference]: Start difference. First operand 217 states and 284 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:21,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:09:21,135 INFO L93 Difference]: Finished difference Result 911 states and 1312 transitions. [2022-11-25 18:09:21,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:09:21,135 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-25 18:09:21,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:09:21,137 INFO L225 Difference]: With dead ends: 911 [2022-11-25 18:09:21,137 INFO L226 Difference]: Without dead ends: 785 [2022-11-25 18:09:21,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:09:21,138 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 1185 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:09:21,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 954 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:09:21,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2022-11-25 18:09:21,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 341. [2022-11-25 18:09:21,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 340 states have (on average 1.3794117647058823) internal successors, (469), 340 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:21,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 469 transitions. [2022-11-25 18:09:21,866 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 469 transitions. Word has length 114 [2022-11-25 18:09:21,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:09:21,866 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 469 transitions. [2022-11-25 18:09:21,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:21,866 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 469 transitions. [2022-11-25 18:09:21,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 18:09:21,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:09:21,867 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:09:21,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-25 18:09:21,867 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:09:21,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:09:21,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1982497248, now seen corresponding path program 1 times [2022-11-25 18:09:21,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:09:21,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426917736] [2022-11-25 18:09:21,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:09:21,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:09:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:09:22,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:09:22,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:09:22,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426917736] [2022-11-25 18:09:22,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426917736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:09:22,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:09:22,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:09:22,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586896172] [2022-11-25 18:09:22,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:09:22,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:09:22,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:09:22,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:09:22,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:09:22,141 INFO L87 Difference]: Start difference. First operand 341 states and 469 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:22,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:09:22,930 INFO L93 Difference]: Finished difference Result 593 states and 842 transitions. [2022-11-25 18:09:22,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:09:22,931 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-25 18:09:22,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:09:22,932 INFO L225 Difference]: With dead ends: 593 [2022-11-25 18:09:22,932 INFO L226 Difference]: Without dead ends: 343 [2022-11-25 18:09:22,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-25 18:09:22,932 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 249 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:09:22,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 552 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:09:22,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2022-11-25 18:09:23,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 341. [2022-11-25 18:09:23,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 340 states have (on average 1.3735294117647059) internal successors, (467), 340 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:23,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 467 transitions. [2022-11-25 18:09:23,696 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 467 transitions. Word has length 114 [2022-11-25 18:09:23,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:09:23,696 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 467 transitions. [2022-11-25 18:09:23,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:23,696 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 467 transitions. [2022-11-25 18:09:23,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 18:09:23,697 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:09:23,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:09:23,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-25 18:09:23,698 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:09:23,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:09:23,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1242756927, now seen corresponding path program 1 times [2022-11-25 18:09:23,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:09:23,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932826778] [2022-11-25 18:09:23,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:09:23,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:09:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:09:23,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:09:23,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:09:23,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932826778] [2022-11-25 18:09:23,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932826778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:09:23,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:09:23,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:09:23,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077286353] [2022-11-25 18:09:23,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:09:23,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:09:23,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:09:23,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:09:23,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:09:23,780 INFO L87 Difference]: Start difference. First operand 341 states and 467 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:25,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:09:25,125 INFO L93 Difference]: Finished difference Result 815 states and 1163 transitions. [2022-11-25 18:09:25,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:09:25,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-25 18:09:25,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:09:25,127 INFO L225 Difference]: With dead ends: 815 [2022-11-25 18:09:25,127 INFO L226 Difference]: Without dead ends: 565 [2022-11-25 18:09:25,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:09:25,128 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 111 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:09:25,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:09:25,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2022-11-25 18:09:26,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 559. [2022-11-25 18:09:26,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 558 states have (on average 1.3942652329749103) internal successors, (778), 558 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:26,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 778 transitions. [2022-11-25 18:09:26,260 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 778 transitions. Word has length 114 [2022-11-25 18:09:26,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:09:26,261 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 778 transitions. [2022-11-25 18:09:26,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:26,261 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 778 transitions. [2022-11-25 18:09:26,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 18:09:26,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:09:26,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:09:26,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-25 18:09:26,263 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:09:26,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:09:26,263 INFO L85 PathProgramCache]: Analyzing trace with hash 335311913, now seen corresponding path program 1 times [2022-11-25 18:09:26,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:09:26,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243678697] [2022-11-25 18:09:26,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:09:26,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:09:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:09:26,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:09:26,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:09:26,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243678697] [2022-11-25 18:09:26,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243678697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:09:26,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:09:26,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:09:26,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004582457] [2022-11-25 18:09:26,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:09:26,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:09:26,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:09:26,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:09:26,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:09:26,411 INFO L87 Difference]: Start difference. First operand 559 states and 778 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:30,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:09:30,132 INFO L93 Difference]: Finished difference Result 1853 states and 2658 transitions. [2022-11-25 18:09:30,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:09:30,133 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-25 18:09:30,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:09:30,136 INFO L225 Difference]: With dead ends: 1853 [2022-11-25 18:09:30,136 INFO L226 Difference]: Without dead ends: 1618 [2022-11-25 18:09:30,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:09:30,137 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 1109 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:09:30,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 996 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:09:30,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2022-11-25 18:09:32,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 909. [2022-11-25 18:09:32,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 908 states have (on average 1.4162995594713657) internal successors, (1286), 908 states have internal predecessors, (1286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:32,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1286 transitions. [2022-11-25 18:09:32,245 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1286 transitions. Word has length 114 [2022-11-25 18:09:32,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:09:32,246 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1286 transitions. [2022-11-25 18:09:32,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:32,246 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1286 transitions. [2022-11-25 18:09:32,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 18:09:32,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:09:32,247 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:09:32,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-25 18:09:32,247 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:09:32,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:09:32,248 INFO L85 PathProgramCache]: Analyzing trace with hash -784107677, now seen corresponding path program 1 times [2022-11-25 18:09:32,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:09:32,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480144281] [2022-11-25 18:09:32,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:09:32,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:09:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:09:32,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:09:32,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:09:32,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480144281] [2022-11-25 18:09:32,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480144281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:09:32,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:09:32,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:09:32,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337752820] [2022-11-25 18:09:32,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:09:32,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:09:32,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:09:32,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:09:32,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:09:32,357 INFO L87 Difference]: Start difference. First operand 909 states and 1286 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:36,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:09:36,772 INFO L93 Difference]: Finished difference Result 2086 states and 2997 transitions. [2022-11-25 18:09:36,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:09:36,772 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-25 18:09:36,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:09:36,776 INFO L225 Difference]: With dead ends: 2086 [2022-11-25 18:09:36,776 INFO L226 Difference]: Without dead ends: 1851 [2022-11-25 18:09:36,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:09:36,778 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 1002 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:09:36,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1002 Valid, 1082 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:09:36,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2022-11-25 18:09:39,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1142. [2022-11-25 18:09:39,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1141 states have (on average 1.4241893076248904) internal successors, (1625), 1141 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:39,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1625 transitions. [2022-11-25 18:09:39,736 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1625 transitions. Word has length 114 [2022-11-25 18:09:39,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:09:39,736 INFO L495 AbstractCegarLoop]: Abstraction has 1142 states and 1625 transitions. [2022-11-25 18:09:39,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:39,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1625 transitions. [2022-11-25 18:09:39,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 18:09:39,737 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:09:39,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:09:39,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-25 18:09:39,737 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:09:39,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:09:39,738 INFO L85 PathProgramCache]: Analyzing trace with hash -651533795, now seen corresponding path program 1 times [2022-11-25 18:09:39,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:09:39,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438310924] [2022-11-25 18:09:39,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:09:39,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:09:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:09:39,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:09:39,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:09:39,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438310924] [2022-11-25 18:09:39,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438310924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:09:39,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:09:39,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:09:39,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707897543] [2022-11-25 18:09:39,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:09:39,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:09:39,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:09:39,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:09:39,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:09:39,878 INFO L87 Difference]: Start difference. First operand 1142 states and 1625 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:44,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:09:44,898 INFO L93 Difference]: Finished difference Result 2319 states and 3336 transitions. [2022-11-25 18:09:44,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:09:44,899 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-25 18:09:44,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:09:44,903 INFO L225 Difference]: With dead ends: 2319 [2022-11-25 18:09:44,903 INFO L226 Difference]: Without dead ends: 2084 [2022-11-25 18:09:44,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:09:44,904 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 1037 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:09:44,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 1122 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:09:44,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2084 states. [2022-11-25 18:09:49,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2084 to 1375. [2022-11-25 18:09:49,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1375 states, 1374 states have (on average 1.4294032023289664) internal successors, (1964), 1374 states have internal predecessors, (1964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:49,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1375 states to 1375 states and 1964 transitions. [2022-11-25 18:09:49,049 INFO L78 Accepts]: Start accepts. Automaton has 1375 states and 1964 transitions. Word has length 114 [2022-11-25 18:09:49,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:09:49,049 INFO L495 AbstractCegarLoop]: Abstraction has 1375 states and 1964 transitions. [2022-11-25 18:09:49,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:49,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1375 states and 1964 transitions. [2022-11-25 18:09:49,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-25 18:09:49,051 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:09:49,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:09:49,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-25 18:09:49,051 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:09:49,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:09:49,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1268705059, now seen corresponding path program 1 times [2022-11-25 18:09:49,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:09:49,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016773104] [2022-11-25 18:09:49,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:09:49,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:09:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:09:49,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:09:49,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:09:49,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016773104] [2022-11-25 18:09:49,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016773104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:09:49,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:09:49,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:09:49,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407419427] [2022-11-25 18:09:49,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:09:49,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:09:49,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:09:49,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:09:49,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:09:49,191 INFO L87 Difference]: Start difference. First operand 1375 states and 1964 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:56,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:09:56,131 INFO L93 Difference]: Finished difference Result 3855 states and 5544 transitions. [2022-11-25 18:09:56,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:09:56,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-11-25 18:09:56,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:09:56,136 INFO L225 Difference]: With dead ends: 3855 [2022-11-25 18:09:56,137 INFO L226 Difference]: Without dead ends: 2571 [2022-11-25 18:09:56,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:09:56,139 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 89 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:09:56,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 407 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:09:56,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2022-11-25 18:10:01,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2481. [2022-11-25 18:10:01,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2481 states, 2480 states have (on average 1.429032258064516) internal successors, (3544), 2480 states have internal predecessors, (3544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:10:02,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2481 states to 2481 states and 3544 transitions. [2022-11-25 18:10:02,001 INFO L78 Accepts]: Start accepts. Automaton has 2481 states and 3544 transitions. Word has length 115 [2022-11-25 18:10:02,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:10:02,002 INFO L495 AbstractCegarLoop]: Abstraction has 2481 states and 3544 transitions. [2022-11-25 18:10:02,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:10:02,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2481 states and 3544 transitions. [2022-11-25 18:10:02,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-25 18:10:02,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:10:02,004 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:10:02,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-25 18:10:02,004 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:10:02,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:10:02,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1444283991, now seen corresponding path program 1 times [2022-11-25 18:10:02,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:10:02,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018601108] [2022-11-25 18:10:02,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:10:02,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:10:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:10:02,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:10:02,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:10:02,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018601108] [2022-11-25 18:10:02,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018601108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:10:02,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:10:02,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:10:02,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325191871] [2022-11-25 18:10:02,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:10:02,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:10:02,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:10:02,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:10:02,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:10:02,130 INFO L87 Difference]: Start difference. First operand 2481 states and 3544 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:10:13,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:10:13,912 INFO L93 Difference]: Finished difference Result 7085 states and 10130 transitions. [2022-11-25 18:10:13,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:10:13,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2022-11-25 18:10:13,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:10:13,921 INFO L225 Difference]: With dead ends: 7085 [2022-11-25 18:10:13,921 INFO L226 Difference]: Without dead ends: 4695 [2022-11-25 18:10:13,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:10:13,925 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 82 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:10:13,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 407 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:10:13,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4695 states. [2022-11-25 18:10:25,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4695 to 4517. [2022-11-25 18:10:25,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4517 states, 4516 states have (on average 1.421169176262179) internal successors, (6418), 4516 states have internal predecessors, (6418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:10:25,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4517 states to 4517 states and 6418 transitions. [2022-11-25 18:10:25,549 INFO L78 Accepts]: Start accepts. Automaton has 4517 states and 6418 transitions. Word has length 116 [2022-11-25 18:10:25,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:10:25,550 INFO L495 AbstractCegarLoop]: Abstraction has 4517 states and 6418 transitions. [2022-11-25 18:10:25,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:10:25,550 INFO L276 IsEmpty]: Start isEmpty. Operand 4517 states and 6418 transitions. [2022-11-25 18:10:25,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-25 18:10:25,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:10:25,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:10:25,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-25 18:10:25,551 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:10:25,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:10:25,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1913447474, now seen corresponding path program 1 times [2022-11-25 18:10:25,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:10:25,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672621146] [2022-11-25 18:10:25,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:10:25,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:10:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:10:25,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:10:25,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:10:25,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672621146] [2022-11-25 18:10:25,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672621146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:10:25,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:10:25,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:10:25,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585563655] [2022-11-25 18:10:25,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:10:25,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:10:25,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:10:25,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:10:25,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:10:25,634 INFO L87 Difference]: Start difference. First operand 4517 states and 6418 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:10:48,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:10:48,128 INFO L93 Difference]: Finished difference Result 13017 states and 18444 transitions. [2022-11-25 18:10:48,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:10:48,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-11-25 18:10:48,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:10:48,141 INFO L225 Difference]: With dead ends: 13017 [2022-11-25 18:10:48,142 INFO L226 Difference]: Without dead ends: 8591 [2022-11-25 18:10:48,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:10:48,149 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 75 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:10:48,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 407 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:10:48,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8591 states. [2022-11-25 18:11:08,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8591 to 8237. [2022-11-25 18:11:08,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8237 states, 8236 states have (on average 1.407722195240408) internal successors, (11594), 8236 states have internal predecessors, (11594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:09,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8237 states to 8237 states and 11594 transitions. [2022-11-25 18:11:09,003 INFO L78 Accepts]: Start accepts. Automaton has 8237 states and 11594 transitions. Word has length 117 [2022-11-25 18:11:09,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:11:09,003 INFO L495 AbstractCegarLoop]: Abstraction has 8237 states and 11594 transitions. [2022-11-25 18:11:09,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:09,004 INFO L276 IsEmpty]: Start isEmpty. Operand 8237 states and 11594 transitions. [2022-11-25 18:11:09,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-25 18:11:09,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:11:09,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:11:09,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-11-25 18:11:09,005 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:11:09,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:11:09,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1786344024, now seen corresponding path program 1 times [2022-11-25 18:11:09,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:11:09,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572994590] [2022-11-25 18:11:09,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:11:09,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:11:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:11:09,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:11:09,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:11:09,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572994590] [2022-11-25 18:11:09,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572994590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:11:09,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:11:09,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:11:09,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947481616] [2022-11-25 18:11:09,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:11:09,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:11:09,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:11:09,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:11:09,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:11:09,085 INFO L87 Difference]: Start difference. First operand 8237 states and 11594 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:51,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:11:51,691 INFO L93 Difference]: Finished difference Result 23825 states and 33356 transitions. [2022-11-25 18:11:51,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:11:51,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-11-25 18:11:51,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:11:51,710 INFO L225 Difference]: With dead ends: 23825 [2022-11-25 18:11:51,710 INFO L226 Difference]: Without dead ends: 15679 [2022-11-25 18:11:51,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:11:51,718 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 65 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:11:51,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 407 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:11:51,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15679 states. [2022-11-25 18:12:28,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15679 to 14973. [2022-11-25 18:12:28,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14973 states, 14972 states have (on average 1.389393534597916) internal successors, (20802), 14972 states have internal predecessors, (20802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:12:28,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14973 states to 14973 states and 20802 transitions. [2022-11-25 18:12:28,901 INFO L78 Accepts]: Start accepts. Automaton has 14973 states and 20802 transitions. Word has length 118 [2022-11-25 18:12:28,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:12:28,902 INFO L495 AbstractCegarLoop]: Abstraction has 14973 states and 20802 transitions. [2022-11-25 18:12:28,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:12:28,902 INFO L276 IsEmpty]: Start isEmpty. Operand 14973 states and 20802 transitions. [2022-11-25 18:12:28,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-25 18:12:28,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:12:28,903 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:12:28,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-11-25 18:12:28,903 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:12:28,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:12:28,904 INFO L85 PathProgramCache]: Analyzing trace with hash 880608737, now seen corresponding path program 1 times [2022-11-25 18:12:28,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:12:28,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161290104] [2022-11-25 18:12:28,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:12:28,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:12:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:12:29,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:12:29,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:12:29,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161290104] [2022-11-25 18:12:29,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161290104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:12:29,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:12:29,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:12:29,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192640114] [2022-11-25 18:12:29,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:12:29,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:12:29,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:12:29,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:12:29,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:12:29,083 INFO L87 Difference]: Start difference. First operand 14973 states and 20802 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:13:36,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:13:36,114 INFO L93 Difference]: Finished difference Result 26383 states and 36427 transitions. [2022-11-25 18:13:36,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:13:36,114 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2022-11-25 18:13:36,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:13:36,147 INFO L225 Difference]: With dead ends: 26383 [2022-11-25 18:13:36,147 INFO L226 Difference]: Without dead ends: 26381 [2022-11-25 18:13:36,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:13:36,153 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 310 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:13:36,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 1012 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:13:36,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26381 states. [2022-11-25 18:14:15,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26381 to 15453. [2022-11-25 18:14:15,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15453 states, 15452 states have (on average 1.3710846492363449) internal successors, (21186), 15452 states have internal predecessors, (21186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:15,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15453 states to 15453 states and 21186 transitions. [2022-11-25 18:14:15,524 INFO L78 Accepts]: Start accepts. Automaton has 15453 states and 21186 transitions. Word has length 119 [2022-11-25 18:14:15,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:14:15,524 INFO L495 AbstractCegarLoop]: Abstraction has 15453 states and 21186 transitions. [2022-11-25 18:14:15,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:14:15,524 INFO L276 IsEmpty]: Start isEmpty. Operand 15453 states and 21186 transitions. [2022-11-25 18:14:15,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-25 18:14:15,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:14:15,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:14:15,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-11-25 18:14:15,526 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:14:15,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:14:15,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1221320670, now seen corresponding path program 1 times [2022-11-25 18:14:15,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:14:15,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512412292] [2022-11-25 18:14:15,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:14:15,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:14:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:14:15,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:14:15,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:14:15,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512412292] [2022-11-25 18:14:15,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512412292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:14:15,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:14:15,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:14:15,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696103252] [2022-11-25 18:14:15,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:14:15,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:14:15,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:14:15,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:14:15,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:14:15,680 INFO L87 Difference]: Start difference. First operand 15453 states and 21186 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:15:20,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:15:20,315 INFO L93 Difference]: Finished difference Result 29465 states and 40552 transitions. [2022-11-25 18:15:20,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:15:20,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2022-11-25 18:15:20,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:15:20,351 INFO L225 Difference]: With dead ends: 29465 [2022-11-25 18:15:20,351 INFO L226 Difference]: Without dead ends: 26663 [2022-11-25 18:15:20,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:15:20,358 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 1179 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:15:20,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1179 Valid, 1098 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:15:20,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26663 states. [2022-11-25 18:16:05,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26663 to 18253. [2022-11-25 18:16:05,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18253 states, 18252 states have (on average 1.3711374095989481) internal successors, (25026), 18252 states have internal predecessors, (25026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:16:05,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18253 states to 18253 states and 25026 transitions. [2022-11-25 18:16:05,337 INFO L78 Accepts]: Start accepts. Automaton has 18253 states and 25026 transitions. Word has length 119 [2022-11-25 18:16:05,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:16:05,337 INFO L495 AbstractCegarLoop]: Abstraction has 18253 states and 25026 transitions. [2022-11-25 18:16:05,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:16:05,337 INFO L276 IsEmpty]: Start isEmpty. Operand 18253 states and 25026 transitions. [2022-11-25 18:16:05,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-25 18:16:05,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:16:05,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:16:05,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-11-25 18:16:05,338 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:16:05,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:16:05,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1777695494, now seen corresponding path program 1 times [2022-11-25 18:16:05,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:16:05,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765202069] [2022-11-25 18:16:05,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:16:05,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:16:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:16:05,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:16:05,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:16:05,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765202069] [2022-11-25 18:16:05,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765202069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:16:05,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:16:05,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:16:05,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246085629] [2022-11-25 18:16:05,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:16:05,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:16:05,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:16:05,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:16:05,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:16:05,432 INFO L87 Difference]: Start difference. First operand 18253 states and 25026 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:17:15,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:17:15,310 INFO L93 Difference]: Finished difference Result 47297 states and 64676 transitions. [2022-11-25 18:17:15,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:17:15,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-11-25 18:17:15,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:17:15,347 INFO L225 Difference]: With dead ends: 47297 [2022-11-25 18:17:15,347 INFO L226 Difference]: Without dead ends: 29135 [2022-11-25 18:17:15,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:17:15,360 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 93 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:17:15,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 410 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:17:15,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29135 states. [2022-11-25 18:18:26,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29135 to 27469. [2022-11-25 18:18:26,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27469 states, 27468 states have (on average 1.356123489151012) internal successors, (37250), 27468 states have internal predecessors, (37250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:18:26,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27469 states to 27469 states and 37250 transitions. [2022-11-25 18:18:26,147 INFO L78 Accepts]: Start accepts. Automaton has 27469 states and 37250 transitions. Word has length 120 [2022-11-25 18:18:26,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:18:26,148 INFO L495 AbstractCegarLoop]: Abstraction has 27469 states and 37250 transitions. [2022-11-25 18:18:26,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:18:26,148 INFO L276 IsEmpty]: Start isEmpty. Operand 27469 states and 37250 transitions. [2022-11-25 18:18:26,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-25 18:18:26,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:18:26,154 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:18:26,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-11-25 18:18:26,154 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:18:26,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:18:26,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1132154545, now seen corresponding path program 1 times [2022-11-25 18:18:26,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:18:26,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857080806] [2022-11-25 18:18:26,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:18:26,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:18:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:18:26,237 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:18:26,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:18:26,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857080806] [2022-11-25 18:18:26,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857080806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:18:26,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:18:26,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:18:26,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082361427] [2022-11-25 18:18:26,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:18:26,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:18:26,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:18:26,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:18:26,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:18:26,240 INFO L87 Difference]: Start difference. First operand 27469 states and 37250 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:19:36,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:19:36,722 INFO L93 Difference]: Finished difference Result 54849 states and 74404 transitions. [2022-11-25 18:19:36,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:19:36,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150 [2022-11-25 18:19:36,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:19:36,757 INFO L225 Difference]: With dead ends: 54849 [2022-11-25 18:19:36,757 INFO L226 Difference]: Without dead ends: 27471 [2022-11-25 18:19:36,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:19:36,778 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 82 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:19:36,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 380 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:19:36,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27471 states. [2022-11-25 18:20:59,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27471 to 27469. [2022-11-25 18:20:59,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27469 states, 27468 states have (on average 1.3409785932721712) internal successors, (36834), 27468 states have internal predecessors, (36834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:59,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27469 states to 27469 states and 36834 transitions. [2022-11-25 18:20:59,776 INFO L78 Accepts]: Start accepts. Automaton has 27469 states and 36834 transitions. Word has length 150 [2022-11-25 18:20:59,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:20:59,776 INFO L495 AbstractCegarLoop]: Abstraction has 27469 states and 36834 transitions. [2022-11-25 18:20:59,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:20:59,777 INFO L276 IsEmpty]: Start isEmpty. Operand 27469 states and 36834 transitions. [2022-11-25 18:20:59,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-25 18:20:59,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:20:59,780 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:20:59,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-11-25 18:20:59,780 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:20:59,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:20:59,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1845946094, now seen corresponding path program 1 times [2022-11-25 18:20:59,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:20:59,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136028407] [2022-11-25 18:20:59,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:20:59,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:20:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:21:00,035 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:21:00,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:21:00,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136028407] [2022-11-25 18:21:00,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136028407] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:21:00,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163613377] [2022-11-25 18:21:00,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:21:00,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:21:00,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e890f8d-078d-4733-83c5-f9b248923f7e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:21:00,039 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e890f8d-078d-4733-83c5-f9b248923f7e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:21:00,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e890f8d-078d-4733-83c5-f9b248923f7e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 18:21:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:21:00,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 18:21:00,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:21:01,437 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:21:01,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:21:03,053 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:21:03,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163613377] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:21:03,053 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 18:21:03,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 26 [2022-11-25 18:21:03,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415806544] [2022-11-25 18:21:03,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 18:21:03,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-25 18:21:03,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:21:03,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-25 18:21:03,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2022-11-25 18:21:03,056 INFO L87 Difference]: Start difference. First operand 27469 states and 36834 transitions. Second operand has 27 states, 27 states have (on average 14.62962962962963) internal successors, (395), 26 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)