./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/bin/uautomizer-uyxdKDjOR8 --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 700a368a7186f7babba672e6f0e63377b52860406179fc124b8eed545215de4f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 11:53:22,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:53:22,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:53:22,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:53:22,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:53:22,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:53:22,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:53:22,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:53:22,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:53:22,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:53:22,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:53:22,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:53:22,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:53:22,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:53:22,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:53:22,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:53:22,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:53:22,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:53:22,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:53:22,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:53:22,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:53:22,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:53:22,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:53:22,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:53:22,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:53:22,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:53:22,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:53:22,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:53:22,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:53:22,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:53:22,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:53:22,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:53:22,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:53:22,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:53:22,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:53:22,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:53:22,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:53:22,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:53:22,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:53:22,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:53:22,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:53:22,477 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 11:53:22,498 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:53:22,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:53:22,499 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:53:22,499 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:53:22,500 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:53:22,500 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:53:22,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:53:22,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:53:22,501 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:53:22,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:53:22,501 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:53:22,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:53:22,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:53:22,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:53:22,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:53:22,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:53:22,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:53:22,502 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:53:22,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:53:22,503 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:53:22,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:53:22,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:53:22,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:53:22,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:53:22,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:53:22,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:53:22,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:53:22,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:53:22,504 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:53:22,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:53:22,504 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:53:22,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:53:22,505 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:53:22,505 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:53:22,505 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:53:22,505 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 700a368a7186f7babba672e6f0e63377b52860406179fc124b8eed545215de4f [2022-12-13 11:53:22,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:53:22,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:53:22,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:53:22,704 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:53:22,705 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:53:22,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2022-12-13 11:53:25,359 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:53:25,626 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:53:25,626 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2022-12-13 11:53:25,643 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/bin/uautomizer-uyxdKDjOR8/data/f336057ea/8157de0b674f4d91b7ab92410ff0bfad/FLAGdcc9d5db9 [2022-12-13 11:53:25,653 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/bin/uautomizer-uyxdKDjOR8/data/f336057ea/8157de0b674f4d91b7ab92410ff0bfad [2022-12-13 11:53:25,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:53:25,656 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:53:25,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:53:25,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:53:25,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:53:25,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:53:25" (1/1) ... [2022-12-13 11:53:25,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c12913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:25, skipping insertion in model container [2022-12-13 11:53:25,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:53:25" (1/1) ... [2022-12-13 11:53:25,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:53:25,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:53:25,994 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14181,14194] [2022-12-13 11:53:26,034 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18885,18898] [2022-12-13 11:53:26,042 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20177,20190] [2022-12-13 11:53:26,047 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20935,20948] [2022-12-13 11:53:26,055 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22598,22611] [2022-12-13 11:53:26,060 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23356,23369] [2022-12-13 11:53:26,067 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24485,24498] [2022-12-13 11:53:26,082 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27110,27123] [2022-12-13 11:53:26,086 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27871,27884] [2022-12-13 11:53:26,092 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29003,29016] [2022-12-13 11:53:26,104 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31094,31107] [2022-12-13 11:53:26,121 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35189,35202] [2022-12-13 11:53:26,125 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35950,35963] [2022-12-13 11:53:26,130 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37043,37056] [2022-12-13 11:53:26,138 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39095,39108] [2022-12-13 11:53:26,152 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42827,42840] [2022-12-13 11:53:26,177 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50005,50018] [2022-12-13 11:53:26,180 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50766,50779] [2022-12-13 11:53:26,185 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51898,51911] [2022-12-13 11:53:26,192 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[53989,54002] [2022-12-13 11:53:26,205 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57550,57563] [2022-12-13 11:53:26,223 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63548,63561] [2022-12-13 11:53:26,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:53:26,497 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:53:26,545 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14181,14194] [2022-12-13 11:53:26,556 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18885,18898] [2022-12-13 11:53:26,561 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20177,20190] [2022-12-13 11:53:26,564 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20935,20948] [2022-12-13 11:53:26,570 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22598,22611] [2022-12-13 11:53:26,573 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23356,23369] [2022-12-13 11:53:26,578 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24485,24498] [2022-12-13 11:53:26,585 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27110,27123] [2022-12-13 11:53:26,589 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27871,27884] [2022-12-13 11:53:26,593 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29003,29016] [2022-12-13 11:53:26,601 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31094,31107] [2022-12-13 11:53:26,613 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35189,35202] [2022-12-13 11:53:26,616 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35950,35963] [2022-12-13 11:53:26,620 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37043,37056] [2022-12-13 11:53:26,627 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39095,39108] [2022-12-13 11:53:26,639 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42827,42840] [2022-12-13 11:53:26,659 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50005,50018] [2022-12-13 11:53:26,662 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50766,50779] [2022-12-13 11:53:26,666 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51898,51911] [2022-12-13 11:53:26,672 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[53989,54002] [2022-12-13 11:53:26,682 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57550,57563] [2022-12-13 11:53:26,698 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_d67d25e7-2371-43c2-97e9-e424c2fe375f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63548,63561] [2022-12-13 11:53:26,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:53:26,911 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:53:26,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:26 WrapperNode [2022-12-13 11:53:26,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:53:26,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:53:26,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:53:26,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:53:26,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:26" (1/1) ... [2022-12-13 11:53:26,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:26" (1/1) ... [2022-12-13 11:53:27,001 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6591 [2022-12-13 11:53:27,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:53:27,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:53:27,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:53:27,002 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:53:27,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:26" (1/1) ... [2022-12-13 11:53:27,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:26" (1/1) ... [2022-12-13 11:53:27,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:26" (1/1) ... [2022-12-13 11:53:27,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:26" (1/1) ... [2022-12-13 11:53:27,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:26" (1/1) ... [2022-12-13 11:53:27,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:26" (1/1) ... [2022-12-13 11:53:27,066 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:26" (1/1) ... [2022-12-13 11:53:27,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:26" (1/1) ... [2022-12-13 11:53:27,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:53:27,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:53:27,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:53:27,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:53:27,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:26" (1/1) ... [2022-12-13 11:53:27,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:53:27,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:53:27,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:53:27,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67d25e7-2371-43c2-97e9-e424c2fe375f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:53:27,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:53:27,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:53:27,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:53:27,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:53:27,384 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:53:27,386 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:53:29,472 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:53:29,497 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:53:29,498 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:53:29,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:53:29 BoogieIcfgContainer [2022-12-13 11:53:29,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:53:29,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:53:29,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:53:29,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:53:29,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:53:25" (1/3) ... [2022-12-13 11:53:29,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@675e53cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:53:29, skipping insertion in model container [2022-12-13 11:53:29,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:26" (2/3) ... [2022-12-13 11:53:29,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@675e53cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:53:29, skipping insertion in model container [2022-12-13 11:53:29,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:53:29" (3/3) ... [2022-12-13 11:53:29,507 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2022-12-13 11:53:29,521 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:53:29,522 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-12-13 11:53:29,581 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:53:29,586 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;@7b91ae18, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:53:29,586 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-12-13 11:53:29,593 INFO L276 IsEmpty]: Start isEmpty. Operand has 1132 states, 1108 states have (on average 1.855595667870036) internal successors, (2056), 1131 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:29,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-13 11:53:29,607 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:29,607 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:29,608 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:29,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:29,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1995797141, now seen corresponding path program 1 times [2022-12-13 11:53:29,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:29,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675574353] [2022-12-13 11:53:29,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:29,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:30,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:30,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:30,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675574353] [2022-12-13 11:53:30,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675574353] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:30,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:30,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:53:30,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878554838] [2022-12-13 11:53:30,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:30,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:53:30,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:30,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:53:30,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:53:30,062 INFO L87 Difference]: Start difference. First operand has 1132 states, 1108 states have (on average 1.855595667870036) internal successors, (2056), 1131 states have internal predecessors, (2056), 0 states have call successors, (0), 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 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:30,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:30,698 INFO L93 Difference]: Finished difference Result 1717 states and 3012 transitions. [2022-12-13 11:53:30,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:53:30,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-12-13 11:53:30,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:30,715 INFO L225 Difference]: With dead ends: 1717 [2022-12-13 11:53:30,715 INFO L226 Difference]: Without dead ends: 874 [2022-12-13 11:53:30,720 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 [2022-12-13 11:53:30,724 INFO L413 NwaCegarLoop]: 1034 mSDtfsCounter, 4517 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4517 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:30,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4517 Valid, 1048 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 11:53:30,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2022-12-13 11:53:30,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 874. [2022-12-13 11:53:30,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 852 states have (on average 1.3157276995305165) internal successors, (1121), 873 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:30,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1121 transitions. [2022-12-13 11:53:30,804 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1121 transitions. Word has length 86 [2022-12-13 11:53:30,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:30,804 INFO L495 AbstractCegarLoop]: Abstraction has 874 states and 1121 transitions. [2022-12-13 11:53:30,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:30,805 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1121 transitions. [2022-12-13 11:53:30,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-13 11:53:30,808 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:30,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:30,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:53:30,809 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:30,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:30,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1029751, now seen corresponding path program 1 times [2022-12-13 11:53:30,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:30,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750539669] [2022-12-13 11:53:30,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:30,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:31,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:31,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:31,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750539669] [2022-12-13 11:53:31,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750539669] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:31,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:31,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:53:31,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353911] [2022-12-13 11:53:31,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:31,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:53:31,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:31,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:53:31,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:53:31,030 INFO L87 Difference]: Start difference. First operand 874 states and 1121 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 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) [2022-12-13 11:53:31,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:31,472 INFO L93 Difference]: Finished difference Result 1448 states and 1911 transitions. [2022-12-13 11:53:31,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:53:31,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 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 [2022-12-13 11:53:31,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:31,476 INFO L225 Difference]: With dead ends: 1448 [2022-12-13 11:53:31,476 INFO L226 Difference]: Without dead ends: 770 [2022-12-13 11:53:31,477 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 [2022-12-13 11:53:31,478 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 2889 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2889 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:31,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2889 Valid, 566 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 11:53:31,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2022-12-13 11:53:31,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 770. [2022-12-13 11:53:31,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 748 states have (on average 1.3368983957219251) internal successors, (1000), 769 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:31,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 1000 transitions. [2022-12-13 11:53:31,510 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 1000 transitions. Word has length 87 [2022-12-13 11:53:31,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:31,510 INFO L495 AbstractCegarLoop]: Abstraction has 770 states and 1000 transitions. [2022-12-13 11:53:31,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 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) [2022-12-13 11:53:31,510 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 1000 transitions. [2022-12-13 11:53:31,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-13 11:53:31,512 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:31,512 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:31,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:53:31,512 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:31,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:31,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1805729392, now seen corresponding path program 1 times [2022-12-13 11:53:31,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:31,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936330565] [2022-12-13 11:53:31,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:31,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:31,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:31,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:31,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936330565] [2022-12-13 11:53:31,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936330565] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:31,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:31,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:53:31,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861858721] [2022-12-13 11:53:31,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:31,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:53:31,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:31,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:53:31,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:53:31,624 INFO L87 Difference]: Start difference. First operand 770 states and 1000 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:32,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:32,026 INFO L93 Difference]: Finished difference Result 1344 states and 1789 transitions. [2022-12-13 11:53:32,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:53:32,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-12-13 11:53:32,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:32,028 INFO L225 Difference]: With dead ends: 1344 [2022-12-13 11:53:32,028 INFO L226 Difference]: Without dead ends: 706 [2022-12-13 11:53:32,029 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 [2022-12-13 11:53:32,030 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 2688 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2688 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:32,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2688 Valid, 534 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 11:53:32,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2022-12-13 11:53:32,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2022-12-13 11:53:32,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.355263157894737) internal successors, (927), 705 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:32,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 927 transitions. [2022-12-13 11:53:32,049 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 927 transitions. Word has length 88 [2022-12-13 11:53:32,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:32,050 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 927 transitions. [2022-12-13 11:53:32,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:32,050 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 927 transitions. [2022-12-13 11:53:32,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-13 11:53:32,051 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:32,051 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] [2022-12-13 11:53:32,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 11:53:32,051 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:32,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:32,052 INFO L85 PathProgramCache]: Analyzing trace with hash 19097864, now seen corresponding path program 1 times [2022-12-13 11:53:32,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:32,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73233178] [2022-12-13 11:53:32,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:32,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:32,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:32,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:32,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73233178] [2022-12-13 11:53:32,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73233178] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:32,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:32,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:53:32,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264864979] [2022-12-13 11:53:32,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:32,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:53:32,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:32,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:53:32,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:53:32,157 INFO L87 Difference]: Start difference. First operand 706 states and 927 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:32,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:32,542 INFO L93 Difference]: Finished difference Result 1280 states and 1715 transitions. [2022-12-13 11:53:32,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:53:32,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-12-13 11:53:32,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:32,547 INFO L225 Difference]: With dead ends: 1280 [2022-12-13 11:53:32,547 INFO L226 Difference]: Without dead ends: 665 [2022-12-13 11:53:32,548 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 [2022-12-13 11:53:32,549 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 2576 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2576 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:32,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2576 Valid, 509 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 11:53:32,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-12-13 11:53:32,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 665. [2022-12-13 11:53:32,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 643 states have (on average 1.370139968895801) internal successors, (881), 664 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:32,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 881 transitions. [2022-12-13 11:53:32,581 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 881 transitions. Word has length 89 [2022-12-13 11:53:32,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:32,581 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 881 transitions. [2022-12-13 11:53:32,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:32,582 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 881 transitions. [2022-12-13 11:53:32,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-12-13 11:53:32,583 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:32,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:32,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 11:53:32,584 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:32,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:32,585 INFO L85 PathProgramCache]: Analyzing trace with hash 817016169, now seen corresponding path program 1 times [2022-12-13 11:53:32,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:32,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240094740] [2022-12-13 11:53:32,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:32,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:32,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:32,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:32,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240094740] [2022-12-13 11:53:32,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240094740] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:32,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:32,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:53:32,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705281570] [2022-12-13 11:53:32,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:32,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:53:32,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:32,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:53:32,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:53:32,685 INFO L87 Difference]: Start difference. First operand 665 states and 881 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:33,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:33,045 INFO L93 Difference]: Finished difference Result 1239 states and 1668 transitions. [2022-12-13 11:53:33,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:53:33,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-12-13 11:53:33,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:33,049 INFO L225 Difference]: With dead ends: 1239 [2022-12-13 11:53:33,049 INFO L226 Difference]: Without dead ends: 646 [2022-12-13 11:53:33,050 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 [2022-12-13 11:53:33,051 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 2497 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2497 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:33,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2497 Valid, 498 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 11:53:33,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2022-12-13 11:53:33,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 646. [2022-12-13 11:53:33,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 624 states have (on average 1.376602564102564) internal successors, (859), 645 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:33,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 859 transitions. [2022-12-13 11:53:33,079 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 859 transitions. Word has length 90 [2022-12-13 11:53:33,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:33,079 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 859 transitions. [2022-12-13 11:53:33,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:33,079 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 859 transitions. [2022-12-13 11:53:33,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-13 11:53:33,080 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:33,081 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:33,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 11:53:33,081 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:33,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:33,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1321361543, now seen corresponding path program 1 times [2022-12-13 11:53:33,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:33,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511158539] [2022-12-13 11:53:33,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:33,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:33,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:33,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:33,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:33,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511158539] [2022-12-13 11:53:33,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511158539] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:33,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:33,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:53:33,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38667480] [2022-12-13 11:53:33,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:33,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:53:33,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:33,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:53:33,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:53:33,179 INFO L87 Difference]: Start difference. First operand 646 states and 859 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:33,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:33,614 INFO L93 Difference]: Finished difference Result 1220 states and 1645 transitions. [2022-12-13 11:53:33,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:53:33,615 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-12-13 11:53:33,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:33,616 INFO L225 Difference]: With dead ends: 1220 [2022-12-13 11:53:33,616 INFO L226 Difference]: Without dead ends: 641 [2022-12-13 11:53:33,617 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 [2022-12-13 11:53:33,617 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 2415 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2415 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:33,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2415 Valid, 423 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 11:53:33,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-12-13 11:53:33,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2022-12-13 11:53:33,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3764135702746365) internal successors, (852), 640 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:33,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 852 transitions. [2022-12-13 11:53:33,645 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 852 transitions. Word has length 91 [2022-12-13 11:53:33,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:33,646 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 852 transitions. [2022-12-13 11:53:33,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:33,646 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 852 transitions. [2022-12-13 11:53:33,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-13 11:53:33,647 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:33,647 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:33,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 11:53:33,648 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:33,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:33,648 INFO L85 PathProgramCache]: Analyzing trace with hash 471449544, now seen corresponding path program 1 times [2022-12-13 11:53:33,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:33,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138535714] [2022-12-13 11:53:33,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:33,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:33,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:33,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:33,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138535714] [2022-12-13 11:53:33,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138535714] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:33,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:33,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:53:33,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596953352] [2022-12-13 11:53:33,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:33,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:53:33,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:33,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:53:33,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:53:33,915 INFO L87 Difference]: Start difference. First operand 641 states and 852 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:34,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:34,941 INFO L93 Difference]: Finished difference Result 1260 states and 1708 transitions. [2022-12-13 11:53:34,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:53:34,942 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-12-13 11:53:34,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:34,946 INFO L225 Difference]: With dead ends: 1260 [2022-12-13 11:53:34,946 INFO L226 Difference]: Without dead ends: 1136 [2022-12-13 11:53:34,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:53:34,947 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 5172 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 1787 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5172 SdHoareTripleChecker+Valid, 2223 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:34,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5172 Valid, 2223 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1787 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:53:34,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2022-12-13 11:53:35,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 641. [2022-12-13 11:53:35,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3747980613893376) internal successors, (851), 640 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:35,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 851 transitions. [2022-12-13 11:53:35,011 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 851 transitions. Word has length 92 [2022-12-13 11:53:35,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:35,011 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 851 transitions. [2022-12-13 11:53:35,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:35,012 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 851 transitions. [2022-12-13 11:53:35,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-13 11:53:35,013 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:35,013 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:35,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 11:53:35,014 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:35,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:35,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1530881816, now seen corresponding path program 1 times [2022-12-13 11:53:35,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:35,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600765163] [2022-12-13 11:53:35,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:35,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:35,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:35,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:35,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600765163] [2022-12-13 11:53:35,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600765163] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:35,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:35,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 11:53:35,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544585758] [2022-12-13 11:53:35,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:35,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 11:53:35,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:35,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 11:53:35,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:53:35,370 INFO L87 Difference]: Start difference. First operand 641 states and 851 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:36,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:36,921 INFO L93 Difference]: Finished difference Result 1409 states and 1897 transitions. [2022-12-13 11:53:36,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 11:53:36,922 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-12-13 11:53:36,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:36,925 INFO L225 Difference]: With dead ends: 1409 [2022-12-13 11:53:36,925 INFO L226 Difference]: Without dead ends: 1271 [2022-12-13 11:53:36,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2022-12-13 11:53:36,926 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 5694 mSDsluCounter, 3173 mSDsCounter, 0 mSdLazyCounter, 2919 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5694 SdHoareTripleChecker+Valid, 3712 SdHoareTripleChecker+Invalid, 2931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:36,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5694 Valid, 3712 Invalid, 2931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2919 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 11:53:36,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2022-12-13 11:53:36,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 644. [2022-12-13 11:53:36,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 622 states have (on average 1.3729903536977492) internal successors, (854), 643 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:36,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 854 transitions. [2022-12-13 11:53:36,963 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 854 transitions. Word has length 92 [2022-12-13 11:53:36,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:36,963 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 854 transitions. [2022-12-13 11:53:36,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:36,963 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 854 transitions. [2022-12-13 11:53:36,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-13 11:53:36,964 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:36,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:36,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 11:53:36,965 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:36,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:36,965 INFO L85 PathProgramCache]: Analyzing trace with hash 348627122, now seen corresponding path program 1 times [2022-12-13 11:53:36,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:36,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853021802] [2022-12-13 11:53:36,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:36,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:37,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:37,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:37,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853021802] [2022-12-13 11:53:37,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853021802] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:37,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:37,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:53:37,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429378053] [2022-12-13 11:53:37,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:37,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:53:37,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:37,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:53:37,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:53:37,244 INFO L87 Difference]: Start difference. First operand 644 states and 854 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:38,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:38,359 INFO L93 Difference]: Finished difference Result 1333 states and 1802 transitions. [2022-12-13 11:53:38,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:53:38,359 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-12-13 11:53:38,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:38,361 INFO L225 Difference]: With dead ends: 1333 [2022-12-13 11:53:38,361 INFO L226 Difference]: Without dead ends: 1140 [2022-12-13 11:53:38,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:53:38,362 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 4467 mSDsluCounter, 2256 mSDsCounter, 0 mSdLazyCounter, 2208 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4467 SdHoareTripleChecker+Valid, 2782 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:38,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4467 Valid, 2782 Invalid, 2215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2208 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 11:53:38,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2022-12-13 11:53:38,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 641. [2022-12-13 11:53:38,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3731825525040389) internal successors, (850), 640 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:38,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 850 transitions. [2022-12-13 11:53:38,408 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 850 transitions. Word has length 92 [2022-12-13 11:53:38,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:38,409 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 850 transitions. [2022-12-13 11:53:38,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:38,409 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 850 transitions. [2022-12-13 11:53:38,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-13 11:53:38,410 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:38,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:38,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 11:53:38,410 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:38,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:38,411 INFO L85 PathProgramCache]: Analyzing trace with hash 889427447, now seen corresponding path program 1 times [2022-12-13 11:53:38,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:38,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639882712] [2022-12-13 11:53:38,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:38,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:38,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:38,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:38,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639882712] [2022-12-13 11:53:38,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639882712] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:38,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:38,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 11:53:38,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411459321] [2022-12-13 11:53:38,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:38,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:53:38,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:38,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:53:38,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:53:38,616 INFO L87 Difference]: Start difference. First operand 641 states and 850 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:39,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:39,332 INFO L93 Difference]: Finished difference Result 1209 states and 1559 transitions. [2022-12-13 11:53:39,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:53:39,333 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-12-13 11:53:39,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:39,335 INFO L225 Difference]: With dead ends: 1209 [2022-12-13 11:53:39,335 INFO L226 Difference]: Without dead ends: 863 [2022-12-13 11:53:39,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-12-13 11:53:39,336 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 4863 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4863 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:39,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4863 Valid, 1036 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 11:53:39,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2022-12-13 11:53:39,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 641. [2022-12-13 11:53:39,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.37156704361874) internal successors, (849), 640 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:39,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 849 transitions. [2022-12-13 11:53:39,390 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 849 transitions. Word has length 92 [2022-12-13 11:53:39,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:39,390 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 849 transitions. [2022-12-13 11:53:39,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:39,391 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 849 transitions. [2022-12-13 11:53:39,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 11:53:39,392 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:39,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:39,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 11:53:39,392 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:39,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:39,392 INFO L85 PathProgramCache]: Analyzing trace with hash -709696546, now seen corresponding path program 1 times [2022-12-13 11:53:39,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:39,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976560160] [2022-12-13 11:53:39,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:39,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:39,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:39,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:39,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976560160] [2022-12-13 11:53:39,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976560160] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:39,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:39,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:53:39,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376087697] [2022-12-13 11:53:39,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:39,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:53:39,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:39,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:53:39,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:53:39,604 INFO L87 Difference]: Start difference. First operand 641 states and 849 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:40,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:40,720 INFO L93 Difference]: Finished difference Result 1362 states and 1827 transitions. [2022-12-13 11:53:40,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:53:40,720 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-12-13 11:53:40,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:40,722 INFO L225 Difference]: With dead ends: 1362 [2022-12-13 11:53:40,722 INFO L226 Difference]: Without dead ends: 1140 [2022-12-13 11:53:40,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:53:40,723 INFO L413 NwaCegarLoop]: 799 mSDtfsCounter, 3308 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 2296 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3308 SdHoareTripleChecker+Valid, 2891 SdHoareTripleChecker+Invalid, 2304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:40,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3308 Valid, 2891 Invalid, 2304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2296 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:53:40,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2022-12-13 11:53:40,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 641. [2022-12-13 11:53:40,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.369951534733441) internal successors, (848), 640 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:40,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 848 transitions. [2022-12-13 11:53:40,775 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 848 transitions. Word has length 94 [2022-12-13 11:53:40,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:40,775 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 848 transitions. [2022-12-13 11:53:40,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:40,775 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 848 transitions. [2022-12-13 11:53:40,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 11:53:40,776 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:40,776 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:40,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 11:53:40,777 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:40,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:40,777 INFO L85 PathProgramCache]: Analyzing trace with hash -904842275, now seen corresponding path program 1 times [2022-12-13 11:53:40,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:40,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358411364] [2022-12-13 11:53:40,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:40,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:40,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:40,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:40,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:40,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358411364] [2022-12-13 11:53:40,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358411364] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:40,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:40,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:53:40,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971417312] [2022-12-13 11:53:40,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:40,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:53:40,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:40,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:53:40,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:53:40,985 INFO L87 Difference]: Start difference. First operand 641 states and 848 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:41,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:41,989 INFO L93 Difference]: Finished difference Result 1227 states and 1649 transitions. [2022-12-13 11:53:41,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:53:41,989 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-12-13 11:53:41,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:41,991 INFO L225 Difference]: With dead ends: 1227 [2022-12-13 11:53:41,991 INFO L226 Difference]: Without dead ends: 1128 [2022-12-13 11:53:41,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-12-13 11:53:41,991 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 4827 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 1941 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4827 SdHoareTripleChecker+Valid, 2412 SdHoareTripleChecker+Invalid, 1948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:41,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4827 Valid, 2412 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1941 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 11:53:41,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2022-12-13 11:53:42,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 641. [2022-12-13 11:53:42,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.368336025848142) internal successors, (847), 640 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:42,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 847 transitions. [2022-12-13 11:53:42,049 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 847 transitions. Word has length 94 [2022-12-13 11:53:42,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:42,050 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 847 transitions. [2022-12-13 11:53:42,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:42,050 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 847 transitions. [2022-12-13 11:53:42,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 11:53:42,051 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:42,051 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] [2022-12-13 11:53:42,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 11:53:42,052 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:42,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:42,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1510616083, now seen corresponding path program 1 times [2022-12-13 11:53:42,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:42,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059087332] [2022-12-13 11:53:42,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:42,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:42,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:42,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:42,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059087332] [2022-12-13 11:53:42,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059087332] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:42,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:42,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:53:42,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755008018] [2022-12-13 11:53:42,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:42,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:53:42,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:42,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:53:42,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:53:42,283 INFO L87 Difference]: Start difference. First operand 641 states and 847 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:43,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:43,370 INFO L93 Difference]: Finished difference Result 1274 states and 1714 transitions. [2022-12-13 11:53:43,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:53:43,371 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-12-13 11:53:43,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:43,373 INFO L225 Difference]: With dead ends: 1274 [2022-12-13 11:53:43,373 INFO L226 Difference]: Without dead ends: 1136 [2022-12-13 11:53:43,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:53:43,374 INFO L413 NwaCegarLoop]: 790 mSDtfsCounter, 2112 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 2536 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2112 SdHoareTripleChecker+Valid, 3261 SdHoareTripleChecker+Invalid, 2541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:43,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2112 Valid, 3261 Invalid, 2541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2536 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:53:43,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2022-12-13 11:53:43,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 641. [2022-12-13 11:53:43,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3667205169628434) internal successors, (846), 640 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:43,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 846 transitions. [2022-12-13 11:53:43,439 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 846 transitions. Word has length 94 [2022-12-13 11:53:43,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:43,439 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 846 transitions. [2022-12-13 11:53:43,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:43,439 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 846 transitions. [2022-12-13 11:53:43,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 11:53:43,440 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:43,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:43,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 11:53:43,440 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:43,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:43,440 INFO L85 PathProgramCache]: Analyzing trace with hash -10217144, now seen corresponding path program 1 times [2022-12-13 11:53:43,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:43,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83235308] [2022-12-13 11:53:43,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:43,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:43,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:43,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:43,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83235308] [2022-12-13 11:53:43,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83235308] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:43,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:43,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:53:43,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633849570] [2022-12-13 11:53:43,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:43,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:53:43,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:43,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:53:43,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:53:43,609 INFO L87 Difference]: Start difference. First operand 641 states and 846 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:44,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:44,869 INFO L93 Difference]: Finished difference Result 1274 states and 1716 transitions. [2022-12-13 11:53:44,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:53:44,869 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-12-13 11:53:44,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:44,871 INFO L225 Difference]: With dead ends: 1274 [2022-12-13 11:53:44,871 INFO L226 Difference]: Without dead ends: 1136 [2022-12-13 11:53:44,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:53:44,872 INFO L413 NwaCegarLoop]: 800 mSDtfsCounter, 2780 mSDsluCounter, 2282 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2780 SdHoareTripleChecker+Valid, 3082 SdHoareTripleChecker+Invalid, 2388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:44,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2780 Valid, 3082 Invalid, 2388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 11:53:44,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2022-12-13 11:53:44,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 641. [2022-12-13 11:53:44,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3651050080775444) internal successors, (845), 640 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:44,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 845 transitions. [2022-12-13 11:53:44,938 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 845 transitions. Word has length 94 [2022-12-13 11:53:44,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:44,938 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 845 transitions. [2022-12-13 11:53:44,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:44,938 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 845 transitions. [2022-12-13 11:53:44,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 11:53:44,939 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:44,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:44,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 11:53:44,939 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:44,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:44,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1869291794, now seen corresponding path program 1 times [2022-12-13 11:53:44,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:44,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618506127] [2022-12-13 11:53:44,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:44,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:45,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:45,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:45,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618506127] [2022-12-13 11:53:45,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618506127] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:45,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:45,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:53:45,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065446541] [2022-12-13 11:53:45,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:45,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:53:45,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:45,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:53:45,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:53:45,153 INFO L87 Difference]: Start difference. First operand 641 states and 845 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:46,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:46,093 INFO L93 Difference]: Finished difference Result 1159 states and 1534 transitions. [2022-12-13 11:53:46,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:53:46,094 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-12-13 11:53:46,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:46,096 INFO L225 Difference]: With dead ends: 1159 [2022-12-13 11:53:46,096 INFO L226 Difference]: Without dead ends: 1080 [2022-12-13 11:53:46,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:53:46,097 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 3689 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3689 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 1790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:46,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3689 Valid, 2106 Invalid, 1790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 11:53:46,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-12-13 11:53:46,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 641. [2022-12-13 11:53:46,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3634894991922455) internal successors, (844), 640 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:46,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 844 transitions. [2022-12-13 11:53:46,168 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 844 transitions. Word has length 94 [2022-12-13 11:53:46,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:46,168 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 844 transitions. [2022-12-13 11:53:46,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:46,168 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 844 transitions. [2022-12-13 11:53:46,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 11:53:46,169 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:46,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:46,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 11:53:46,169 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:46,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:46,169 INFO L85 PathProgramCache]: Analyzing trace with hash 191796868, now seen corresponding path program 1 times [2022-12-13 11:53:46,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:46,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929287780] [2022-12-13 11:53:46,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:46,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:46,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:46,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:46,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929287780] [2022-12-13 11:53:46,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929287780] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:46,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:46,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:53:46,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650298503] [2022-12-13 11:53:46,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:46,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:53:46,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:46,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:53:46,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:53:46,337 INFO L87 Difference]: Start difference. First operand 641 states and 844 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:47,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:47,272 INFO L93 Difference]: Finished difference Result 1227 states and 1645 transitions. [2022-12-13 11:53:47,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:53:47,272 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-12-13 11:53:47,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:47,274 INFO L225 Difference]: With dead ends: 1227 [2022-12-13 11:53:47,274 INFO L226 Difference]: Without dead ends: 1128 [2022-12-13 11:53:47,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:53:47,275 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 3183 mSDsluCounter, 2185 mSDsCounter, 0 mSdLazyCounter, 2329 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3183 SdHoareTripleChecker+Valid, 2905 SdHoareTripleChecker+Invalid, 2336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:47,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3183 Valid, 2905 Invalid, 2336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2329 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 11:53:47,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2022-12-13 11:53:47,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 641. [2022-12-13 11:53:47,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3618739903069468) internal successors, (843), 640 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:47,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 843 transitions. [2022-12-13 11:53:47,349 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 843 transitions. Word has length 94 [2022-12-13 11:53:47,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:47,349 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 843 transitions. [2022-12-13 11:53:47,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:47,349 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 843 transitions. [2022-12-13 11:53:47,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 11:53:47,350 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:47,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:47,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 11:53:47,350 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:47,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:47,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1752938330, now seen corresponding path program 1 times [2022-12-13 11:53:47,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:47,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671144379] [2022-12-13 11:53:47,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:47,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:47,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:47,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:47,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671144379] [2022-12-13 11:53:47,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671144379] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:47,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:47,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:53:47,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21819817] [2022-12-13 11:53:47,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:47,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:53:47,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:47,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:53:47,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:53:47,526 INFO L87 Difference]: Start difference. First operand 641 states and 843 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:48,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:48,664 INFO L93 Difference]: Finished difference Result 1222 states and 1639 transitions. [2022-12-13 11:53:48,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:53:48,664 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-12-13 11:53:48,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:48,666 INFO L225 Difference]: With dead ends: 1222 [2022-12-13 11:53:48,666 INFO L226 Difference]: Without dead ends: 1128 [2022-12-13 11:53:48,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-12-13 11:53:48,667 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 4343 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 2201 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4343 SdHoareTripleChecker+Valid, 2763 SdHoareTripleChecker+Invalid, 2208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:48,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4343 Valid, 2763 Invalid, 2208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2201 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 11:53:48,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2022-12-13 11:53:48,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 641. [2022-12-13 11:53:48,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3602584814216478) internal successors, (842), 640 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:48,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 842 transitions. [2022-12-13 11:53:48,747 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 842 transitions. Word has length 94 [2022-12-13 11:53:48,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:48,747 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 842 transitions. [2022-12-13 11:53:48,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:48,747 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 842 transitions. [2022-12-13 11:53:48,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 11:53:48,748 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:48,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:48,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 11:53:48,749 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:48,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:48,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1333702137, now seen corresponding path program 1 times [2022-12-13 11:53:48,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:48,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801684677] [2022-12-13 11:53:48,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:48,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:48,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:48,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:48,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801684677] [2022-12-13 11:53:48,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801684677] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:48,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:48,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:53:48,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839125955] [2022-12-13 11:53:48,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:48,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:53:48,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:48,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:53:48,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:53:48,930 INFO L87 Difference]: Start difference. First operand 641 states and 842 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:50,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:50,116 INFO L93 Difference]: Finished difference Result 1236 states and 1651 transitions. [2022-12-13 11:53:50,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:53:50,117 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-13 11:53:50,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:50,118 INFO L225 Difference]: With dead ends: 1236 [2022-12-13 11:53:50,118 INFO L226 Difference]: Without dead ends: 1128 [2022-12-13 11:53:50,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-12-13 11:53:50,119 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 4689 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 2053 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4689 SdHoareTripleChecker+Valid, 2636 SdHoareTripleChecker+Invalid, 2061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:50,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4689 Valid, 2636 Invalid, 2061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2053 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:53:50,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2022-12-13 11:53:50,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 641. [2022-12-13 11:53:50,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.358642972536349) internal successors, (841), 640 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:50,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 841 transitions. [2022-12-13 11:53:50,200 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 841 transitions. Word has length 96 [2022-12-13 11:53:50,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:50,201 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 841 transitions. [2022-12-13 11:53:50,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:50,201 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 841 transitions. [2022-12-13 11:53:50,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 11:53:50,201 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:50,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:50,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 11:53:50,202 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:50,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:50,202 INFO L85 PathProgramCache]: Analyzing trace with hash 924856909, now seen corresponding path program 1 times [2022-12-13 11:53:50,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:50,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297404087] [2022-12-13 11:53:50,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:50,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:50,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:50,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:50,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297404087] [2022-12-13 11:53:50,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297404087] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:50,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:50,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:53:50,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304670492] [2022-12-13 11:53:50,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:50,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:53:50,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:50,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:53:50,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:53:50,357 INFO L87 Difference]: Start difference. First operand 641 states and 841 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:51,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:51,441 INFO L93 Difference]: Finished difference Result 1159 states and 1529 transitions. [2022-12-13 11:53:51,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:53:51,442 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-13 11:53:51,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:51,443 INFO L225 Difference]: With dead ends: 1159 [2022-12-13 11:53:51,444 INFO L226 Difference]: Without dead ends: 1080 [2022-12-13 11:53:51,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:53:51,444 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 3633 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 1769 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3633 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 1775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:51,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3633 Valid, 2106 Invalid, 1775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1769 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 11:53:51,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-12-13 11:53:51,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 641. [2022-12-13 11:53:51,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.35702746365105) internal successors, (840), 640 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:51,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 840 transitions. [2022-12-13 11:53:51,531 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 840 transitions. Word has length 96 [2022-12-13 11:53:51,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:51,531 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 840 transitions. [2022-12-13 11:53:51,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:51,531 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 840 transitions. [2022-12-13 11:53:51,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 11:53:51,532 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:51,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:51,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 11:53:51,532 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:51,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:51,532 INFO L85 PathProgramCache]: Analyzing trace with hash 92967727, now seen corresponding path program 1 times [2022-12-13 11:53:51,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:51,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021999268] [2022-12-13 11:53:51,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:51,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:51,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:51,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:51,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:51,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021999268] [2022-12-13 11:53:51,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021999268] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:51,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:51,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:53:51,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484390317] [2022-12-13 11:53:51,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:51,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:53:51,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:51,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:53:51,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:53:51,686 INFO L87 Difference]: Start difference. First operand 641 states and 840 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:52,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:52,909 INFO L93 Difference]: Finished difference Result 1289 states and 1719 transitions. [2022-12-13 11:53:52,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:53:52,910 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-13 11:53:52,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:52,912 INFO L225 Difference]: With dead ends: 1289 [2022-12-13 11:53:52,912 INFO L226 Difference]: Without dead ends: 1136 [2022-12-13 11:53:52,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:53:52,913 INFO L413 NwaCegarLoop]: 800 mSDtfsCounter, 3050 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3050 SdHoareTripleChecker+Valid, 3098 SdHoareTripleChecker+Invalid, 2387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:52,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3050 Valid, 3098 Invalid, 2387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:53:52,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2022-12-13 11:53:52,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 641. [2022-12-13 11:53:52,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3554119547657513) internal successors, (839), 640 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:52,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 839 transitions. [2022-12-13 11:53:52,998 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 839 transitions. Word has length 96 [2022-12-13 11:53:52,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:52,998 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 839 transitions. [2022-12-13 11:53:52,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:52,998 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 839 transitions. [2022-12-13 11:53:52,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 11:53:52,999 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:52,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:52,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 11:53:52,999 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:53,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:53,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1818861412, now seen corresponding path program 1 times [2022-12-13 11:53:53,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:53,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654480457] [2022-12-13 11:53:53,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:53,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:53,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:53,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:53,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654480457] [2022-12-13 11:53:53,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654480457] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:53,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:53,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:53:53,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516578726] [2022-12-13 11:53:53,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:53,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:53:53,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:53,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:53:53,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:53:53,155 INFO L87 Difference]: Start difference. First operand 641 states and 839 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:54,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:54,133 INFO L93 Difference]: Finished difference Result 1085 states and 1418 transitions. [2022-12-13 11:53:54,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:53:54,133 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-13 11:53:54,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:54,135 INFO L225 Difference]: With dead ends: 1085 [2022-12-13 11:53:54,135 INFO L226 Difference]: Without dead ends: 1080 [2022-12-13 11:53:54,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:53:54,136 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 2502 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 1761 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2502 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 1767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:54,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2502 Valid, 2107 Invalid, 1767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1761 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 11:53:54,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-12-13 11:53:54,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 641. [2022-12-13 11:53:54,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3537964458804523) internal successors, (838), 640 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:54,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 838 transitions. [2022-12-13 11:53:54,225 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 838 transitions. Word has length 96 [2022-12-13 11:53:54,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:54,225 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 838 transitions. [2022-12-13 11:53:54,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:54,225 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 838 transitions. [2022-12-13 11:53:54,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 11:53:54,229 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:54,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:54,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 11:53:54,229 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:54,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:54,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1839313585, now seen corresponding path program 1 times [2022-12-13 11:53:54,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:54,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74135684] [2022-12-13 11:53:54,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:54,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:54,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:54,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:54,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74135684] [2022-12-13 11:53:54,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74135684] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:54,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:54,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:53:54,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969572232] [2022-12-13 11:53:54,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:54,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:53:54,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:54,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:53:54,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:53:54,374 INFO L87 Difference]: Start difference. First operand 641 states and 838 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:55,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:55,341 INFO L93 Difference]: Finished difference Result 1156 states and 1521 transitions. [2022-12-13 11:53:55,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:53:55,341 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-13 11:53:55,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:55,343 INFO L225 Difference]: With dead ends: 1156 [2022-12-13 11:53:55,343 INFO L226 Difference]: Without dead ends: 1080 [2022-12-13 11:53:55,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:53:55,344 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 2866 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2866 SdHoareTripleChecker+Valid, 2110 SdHoareTripleChecker+Invalid, 1762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:55,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2866 Valid, 2110 Invalid, 1762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1756 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 11:53:55,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-12-13 11:53:55,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 641. [2022-12-13 11:53:55,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3521809369951534) internal successors, (837), 640 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:55,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 837 transitions. [2022-12-13 11:53:55,437 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 837 transitions. Word has length 96 [2022-12-13 11:53:55,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:55,437 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 837 transitions. [2022-12-13 11:53:55,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:55,437 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 837 transitions. [2022-12-13 11:53:55,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 11:53:55,438 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:55,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:55,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 11:53:55,438 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:55,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:55,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1859604465, now seen corresponding path program 1 times [2022-12-13 11:53:55,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:55,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644406069] [2022-12-13 11:53:55,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:55,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:55,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:55,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:55,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644406069] [2022-12-13 11:53:55,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644406069] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:55,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:55,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:53:55,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345335339] [2022-12-13 11:53:55,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:55,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:53:55,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:55,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:53:55,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:53:55,582 INFO L87 Difference]: Start difference. First operand 641 states and 837 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:56,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:56,701 INFO L93 Difference]: Finished difference Result 1236 states and 1644 transitions. [2022-12-13 11:53:56,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:53:56,701 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-13 11:53:56,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:56,703 INFO L225 Difference]: With dead ends: 1236 [2022-12-13 11:53:56,703 INFO L226 Difference]: Without dead ends: 1128 [2022-12-13 11:53:56,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:53:56,704 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 2763 mSDsluCounter, 2502 mSDsCounter, 0 mSdLazyCounter, 2625 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2763 SdHoareTripleChecker+Valid, 3330 SdHoareTripleChecker+Invalid, 2631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:56,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2763 Valid, 3330 Invalid, 2631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2625 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:53:56,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2022-12-13 11:53:56,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 641. [2022-12-13 11:53:56,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3505654281098547) internal successors, (836), 640 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:56,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 836 transitions. [2022-12-13 11:53:56,797 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 836 transitions. Word has length 96 [2022-12-13 11:53:56,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:56,797 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 836 transitions. [2022-12-13 11:53:56,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:56,798 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 836 transitions. [2022-12-13 11:53:56,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 11:53:56,798 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:56,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:56,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 11:53:56,798 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:56,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:56,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1450759237, now seen corresponding path program 1 times [2022-12-13 11:53:56,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:56,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462433033] [2022-12-13 11:53:56,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:56,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:56,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:56,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:56,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462433033] [2022-12-13 11:53:56,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462433033] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:56,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:56,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:53:56,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568767182] [2022-12-13 11:53:56,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:56,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:53:56,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:56,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:53:56,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:53:56,939 INFO L87 Difference]: Start difference. First operand 641 states and 836 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:57,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:57,780 INFO L93 Difference]: Finished difference Result 1085 states and 1413 transitions. [2022-12-13 11:53:57,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:53:57,781 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-13 11:53:57,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:57,782 INFO L225 Difference]: With dead ends: 1085 [2022-12-13 11:53:57,782 INFO L226 Difference]: Without dead ends: 1080 [2022-12-13 11:53:57,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:53:57,783 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 3645 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3645 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 1755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:57,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3645 Valid, 2107 Invalid, 1755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1748 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 11:53:57,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-12-13 11:53:57,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 641. [2022-12-13 11:53:57,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3489499192245558) internal successors, (835), 640 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:57,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 835 transitions. [2022-12-13 11:53:57,882 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 835 transitions. Word has length 96 [2022-12-13 11:53:57,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:57,883 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 835 transitions. [2022-12-13 11:53:57,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:57,883 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 835 transitions. [2022-12-13 11:53:57,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 11:53:57,884 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:57,884 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:57,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 11:53:57,884 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:57,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:57,885 INFO L85 PathProgramCache]: Analyzing trace with hash 627769446, now seen corresponding path program 1 times [2022-12-13 11:53:57,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:57,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853494588] [2022-12-13 11:53:57,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:57,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:58,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:58,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:58,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853494588] [2022-12-13 11:53:58,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853494588] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:58,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:58,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:53:58,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922841700] [2022-12-13 11:53:58,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:58,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:53:58,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:58,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:53:58,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:53:58,039 INFO L87 Difference]: Start difference. First operand 641 states and 835 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:59,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:59,084 INFO L93 Difference]: Finished difference Result 1236 states and 1642 transitions. [2022-12-13 11:53:59,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:53:59,085 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-13 11:53:59,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:59,086 INFO L225 Difference]: With dead ends: 1236 [2022-12-13 11:53:59,086 INFO L226 Difference]: Without dead ends: 1128 [2022-12-13 11:53:59,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:53:59,087 INFO L413 NwaCegarLoop]: 781 mSDtfsCounter, 3136 mSDsluCounter, 2308 mSDsCounter, 0 mSdLazyCounter, 2373 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3136 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 2381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:59,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3136 Valid, 3089 Invalid, 2381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2373 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 11:53:59,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2022-12-13 11:53:59,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 641. [2022-12-13 11:53:59,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3473344103392568) internal successors, (834), 640 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:59,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 834 transitions. [2022-12-13 11:53:59,185 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 834 transitions. Word has length 96 [2022-12-13 11:53:59,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:59,185 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 834 transitions. [2022-12-13 11:53:59,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:59,186 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 834 transitions. [2022-12-13 11:53:59,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 11:53:59,186 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:59,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:59,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 11:53:59,186 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:53:59,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:59,187 INFO L85 PathProgramCache]: Analyzing trace with hash 218924218, now seen corresponding path program 1 times [2022-12-13 11:53:59,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:59,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020623450] [2022-12-13 11:53:59,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:59,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:59,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:59,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:53:59,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020623450] [2022-12-13 11:53:59,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020623450] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:59,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:59,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:53:59,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126358800] [2022-12-13 11:53:59,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:59,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:53:59,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:53:59,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:53:59,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:53:59,326 INFO L87 Difference]: Start difference. First operand 641 states and 834 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:00,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:00,249 INFO L93 Difference]: Finished difference Result 1159 states and 1518 transitions. [2022-12-13 11:54:00,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:00,249 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-13 11:54:00,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:00,251 INFO L225 Difference]: With dead ends: 1159 [2022-12-13 11:54:00,251 INFO L226 Difference]: Without dead ends: 1080 [2022-12-13 11:54:00,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:00,252 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 3638 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 1740 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3638 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:00,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3638 Valid, 2106 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1740 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 11:54:00,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-12-13 11:54:00,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 641. [2022-12-13 11:54:00,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.345718901453958) internal successors, (833), 640 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:00,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 833 transitions. [2022-12-13 11:54:00,356 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 833 transitions. Word has length 96 [2022-12-13 11:54:00,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:00,356 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 833 transitions. [2022-12-13 11:54:00,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:00,356 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 833 transitions. [2022-12-13 11:54:00,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 11:54:00,356 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:00,356 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:00,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 11:54:00,357 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:00,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:00,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1223338080, now seen corresponding path program 1 times [2022-12-13 11:54:00,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:00,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303689539] [2022-12-13 11:54:00,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:00,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:00,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:00,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:00,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303689539] [2022-12-13 11:54:00,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303689539] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:00,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:00,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:00,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021485209] [2022-12-13 11:54:00,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:00,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:00,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:00,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:00,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:00,501 INFO L87 Difference]: Start difference. First operand 641 states and 833 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:01,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:01,519 INFO L93 Difference]: Finished difference Result 1156 states and 1513 transitions. [2022-12-13 11:54:01,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:01,519 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-13 11:54:01,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:01,521 INFO L225 Difference]: With dead ends: 1156 [2022-12-13 11:54:01,521 INFO L226 Difference]: Without dead ends: 1080 [2022-12-13 11:54:01,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:01,522 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 2480 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 1739 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2480 SdHoareTripleChecker+Valid, 2105 SdHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:01,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2480 Valid, 2105 Invalid, 1745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1739 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 11:54:01,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-12-13 11:54:01,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 641. [2022-12-13 11:54:01,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3441033925686592) internal successors, (832), 640 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:01,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 832 transitions. [2022-12-13 11:54:01,625 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 832 transitions. Word has length 96 [2022-12-13 11:54:01,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:01,626 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 832 transitions. [2022-12-13 11:54:01,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:01,626 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 832 transitions. [2022-12-13 11:54:01,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 11:54:01,626 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:01,626 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:01,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 11:54:01,627 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:01,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:01,627 INFO L85 PathProgramCache]: Analyzing trace with hash -2013822329, now seen corresponding path program 1 times [2022-12-13 11:54:01,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:01,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752064132] [2022-12-13 11:54:01,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:01,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:01,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:01,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:01,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752064132] [2022-12-13 11:54:01,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752064132] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:01,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:01,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:01,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456239041] [2022-12-13 11:54:01,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:01,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:01,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:01,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:01,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:01,794 INFO L87 Difference]: Start difference. First operand 641 states and 832 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:03,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:03,177 INFO L93 Difference]: Finished difference Result 1227 states and 1628 transitions. [2022-12-13 11:54:03,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:03,178 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-13 11:54:03,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:03,180 INFO L225 Difference]: With dead ends: 1227 [2022-12-13 11:54:03,180 INFO L226 Difference]: Without dead ends: 1128 [2022-12-13 11:54:03,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-12-13 11:54:03,181 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 3678 mSDsluCounter, 2456 mSDsCounter, 0 mSdLazyCounter, 2473 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3678 SdHoareTripleChecker+Valid, 3231 SdHoareTripleChecker+Invalid, 2479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:03,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3678 Valid, 3231 Invalid, 2479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2473 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:54:03,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2022-12-13 11:54:03,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 641. [2022-12-13 11:54:03,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3424878836833603) internal successors, (831), 640 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:03,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 831 transitions. [2022-12-13 11:54:03,295 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 831 transitions. Word has length 96 [2022-12-13 11:54:03,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:03,295 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 831 transitions. [2022-12-13 11:54:03,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:03,296 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 831 transitions. [2022-12-13 11:54:03,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 11:54:03,296 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:03,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:03,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 11:54:03,296 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:03,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:03,297 INFO L85 PathProgramCache]: Analyzing trace with hash -236760265, now seen corresponding path program 1 times [2022-12-13 11:54:03,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:03,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871848381] [2022-12-13 11:54:03,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:03,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:03,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:03,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:03,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871848381] [2022-12-13 11:54:03,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871848381] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:03,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:03,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:03,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100531100] [2022-12-13 11:54:03,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:03,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:03,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:03,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:03,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:03,443 INFO L87 Difference]: Start difference. First operand 641 states and 831 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:04,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:04,640 INFO L93 Difference]: Finished difference Result 1156 states and 1510 transitions. [2022-12-13 11:54:04,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:04,641 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-13 11:54:04,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:04,642 INFO L225 Difference]: With dead ends: 1156 [2022-12-13 11:54:04,642 INFO L226 Difference]: Without dead ends: 1080 [2022-12-13 11:54:04,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:04,643 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 3617 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3617 SdHoareTripleChecker+Valid, 2110 SdHoareTripleChecker+Invalid, 1734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:04,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3617 Valid, 2110 Invalid, 1734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1727 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 11:54:04,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-12-13 11:54:04,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 641. [2022-12-13 11:54:04,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3408723747980613) internal successors, (830), 640 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:04,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 830 transitions. [2022-12-13 11:54:04,755 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 830 transitions. Word has length 96 [2022-12-13 11:54:04,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:04,755 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 830 transitions. [2022-12-13 11:54:04,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:04,755 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 830 transitions. [2022-12-13 11:54:04,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 11:54:04,756 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:04,756 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:04,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 11:54:04,756 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:04,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:04,756 INFO L85 PathProgramCache]: Analyzing trace with hash -872854485, now seen corresponding path program 1 times [2022-12-13 11:54:04,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:04,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331507891] [2022-12-13 11:54:04,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:04,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:05,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:05,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:05,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331507891] [2022-12-13 11:54:05,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331507891] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:05,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:05,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 11:54:05,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232812086] [2022-12-13 11:54:05,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:05,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 11:54:05,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:05,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 11:54:05,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:54:05,052 INFO L87 Difference]: Start difference. First operand 641 states and 830 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:07,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:07,607 INFO L93 Difference]: Finished difference Result 1662 states and 2244 transitions. [2022-12-13 11:54:07,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 11:54:07,607 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-13 11:54:07,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:07,609 INFO L225 Difference]: With dead ends: 1662 [2022-12-13 11:54:07,609 INFO L226 Difference]: Without dead ends: 1576 [2022-12-13 11:54:07,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 11:54:07,609 INFO L413 NwaCegarLoop]: 813 mSDtfsCounter, 5379 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 2921 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5379 SdHoareTripleChecker+Valid, 3591 SdHoareTripleChecker+Invalid, 3128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 2921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:07,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5379 Valid, 3591 Invalid, 3128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 2921 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 11:54:07,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2022-12-13 11:54:07,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 645. [2022-12-13 11:54:07,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.3386837881219904) internal successors, (834), 644 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:07,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 834 transitions. [2022-12-13 11:54:07,743 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 834 transitions. Word has length 96 [2022-12-13 11:54:07,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:07,743 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 834 transitions. [2022-12-13 11:54:07,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:07,743 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 834 transitions. [2022-12-13 11:54:07,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 11:54:07,744 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:07,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:07,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-13 11:54:07,744 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:07,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:07,744 INFO L85 PathProgramCache]: Analyzing trace with hash -35876805, now seen corresponding path program 1 times [2022-12-13 11:54:07,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:07,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893315001] [2022-12-13 11:54:07,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:07,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:07,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:07,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:07,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:07,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893315001] [2022-12-13 11:54:07,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893315001] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:07,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:07,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:07,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522381587] [2022-12-13 11:54:07,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:07,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:07,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:07,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:07,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:07,897 INFO L87 Difference]: Start difference. First operand 645 states and 834 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:08,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:08,857 INFO L93 Difference]: Finished difference Result 1160 states and 1512 transitions. [2022-12-13 11:54:08,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:08,858 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-13 11:54:08,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:08,859 INFO L225 Difference]: With dead ends: 1160 [2022-12-13 11:54:08,859 INFO L226 Difference]: Without dead ends: 1084 [2022-12-13 11:54:08,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:08,859 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 2470 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 1722 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2470 SdHoareTripleChecker+Valid, 2110 SdHoareTripleChecker+Invalid, 1728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:08,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2470 Valid, 2110 Invalid, 1728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1722 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 11:54:08,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2022-12-13 11:54:08,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 645. [2022-12-13 11:54:08,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.3370786516853932) internal successors, (833), 644 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:08,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 833 transitions. [2022-12-13 11:54:08,993 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 833 transitions. Word has length 96 [2022-12-13 11:54:08,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:08,994 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 833 transitions. [2022-12-13 11:54:08,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:08,994 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 833 transitions. [2022-12-13 11:54:08,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 11:54:08,994 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:08,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:08,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-13 11:54:08,995 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:08,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:08,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1688520017, now seen corresponding path program 1 times [2022-12-13 11:54:08,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:08,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086978980] [2022-12-13 11:54:08,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:08,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:09,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:09,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:09,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086978980] [2022-12-13 11:54:09,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086978980] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:09,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:09,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:09,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882047437] [2022-12-13 11:54:09,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:09,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:09,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:09,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:09,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:09,169 INFO L87 Difference]: Start difference. First operand 645 states and 833 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:10,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:10,524 INFO L93 Difference]: Finished difference Result 1193 states and 1575 transitions. [2022-12-13 11:54:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:10,525 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-13 11:54:10,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:10,526 INFO L225 Difference]: With dead ends: 1193 [2022-12-13 11:54:10,526 INFO L226 Difference]: Without dead ends: 1112 [2022-12-13 11:54:10,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:10,527 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 3703 mSDsluCounter, 2876 mSDsCounter, 0 mSdLazyCounter, 2749 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3703 SdHoareTripleChecker+Valid, 3588 SdHoareTripleChecker+Invalid, 2755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:10,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3703 Valid, 3588 Invalid, 2755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2749 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 11:54:10,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-12-13 11:54:10,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 645. [2022-12-13 11:54:10,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.3354735152487962) internal successors, (832), 644 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:10,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 832 transitions. [2022-12-13 11:54:10,666 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 832 transitions. Word has length 96 [2022-12-13 11:54:10,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:10,667 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 832 transitions. [2022-12-13 11:54:10,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:10,667 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 832 transitions. [2022-12-13 11:54:10,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-13 11:54:10,667 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:10,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:10,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-13 11:54:10,668 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:10,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:10,668 INFO L85 PathProgramCache]: Analyzing trace with hash -392264462, now seen corresponding path program 1 times [2022-12-13 11:54:10,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:10,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498217959] [2022-12-13 11:54:10,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:10,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:10,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:10,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:10,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498217959] [2022-12-13 11:54:10,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498217959] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:10,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:10,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:10,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015183654] [2022-12-13 11:54:10,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:10,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:10,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:10,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:10,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:10,816 INFO L87 Difference]: Start difference. First operand 645 states and 832 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:12,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:12,077 INFO L93 Difference]: Finished difference Result 1198 states and 1578 transitions. [2022-12-13 11:54:12,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:12,078 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-12-13 11:54:12,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:12,079 INFO L225 Difference]: With dead ends: 1198 [2022-12-13 11:54:12,079 INFO L226 Difference]: Without dead ends: 1112 [2022-12-13 11:54:12,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:12,080 INFO L413 NwaCegarLoop]: 773 mSDtfsCounter, 1957 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 2481 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1957 SdHoareTripleChecker+Valid, 3139 SdHoareTripleChecker+Invalid, 2486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:12,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1957 Valid, 3139 Invalid, 2486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2481 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:54:12,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-12-13 11:54:12,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 641. [2022-12-13 11:54:12,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3360258481421647) internal successors, (827), 640 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:12,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 827 transitions. [2022-12-13 11:54:12,221 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 827 transitions. Word has length 97 [2022-12-13 11:54:12,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:12,221 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 827 transitions. [2022-12-13 11:54:12,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:12,221 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 827 transitions. [2022-12-13 11:54:12,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:12,222 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:12,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:12,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-13 11:54:12,222 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:12,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:12,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1799558176, now seen corresponding path program 1 times [2022-12-13 11:54:12,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:12,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796277547] [2022-12-13 11:54:12,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:12,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:12,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:12,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:12,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796277547] [2022-12-13 11:54:12,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796277547] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:12,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:12,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:12,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985592682] [2022-12-13 11:54:12,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:12,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:12,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:12,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:12,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:12,390 INFO L87 Difference]: Start difference. First operand 641 states and 827 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:13,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:13,803 INFO L93 Difference]: Finished difference Result 1159 states and 1507 transitions. [2022-12-13 11:54:13,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:13,803 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:13,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:13,805 INFO L225 Difference]: With dead ends: 1159 [2022-12-13 11:54:13,805 INFO L226 Difference]: Without dead ends: 1080 [2022-12-13 11:54:13,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:13,805 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 4028 mSDsluCounter, 2206 mSDsCounter, 0 mSdLazyCounter, 2133 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4028 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 2140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:13,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4028 Valid, 2729 Invalid, 2140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2133 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:54:13,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-12-13 11:54:13,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 641. [2022-12-13 11:54:13,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3344103392568658) internal successors, (826), 640 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:13,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 826 transitions. [2022-12-13 11:54:13,951 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 826 transitions. Word has length 98 [2022-12-13 11:54:13,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:13,952 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 826 transitions. [2022-12-13 11:54:13,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:13,952 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 826 transitions. [2022-12-13 11:54:13,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:13,952 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:13,952 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:13,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-13 11:54:13,952 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:13,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:13,953 INFO L85 PathProgramCache]: Analyzing trace with hash 112638926, now seen corresponding path program 1 times [2022-12-13 11:54:13,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:13,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776283713] [2022-12-13 11:54:13,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:13,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:14,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:14,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:14,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776283713] [2022-12-13 11:54:14,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776283713] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:14,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:14,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 11:54:14,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895846804] [2022-12-13 11:54:14,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:14,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 11:54:14,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:14,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 11:54:14,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:54:14,218 INFO L87 Difference]: Start difference. First operand 641 states and 826 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:16,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:16,800 INFO L93 Difference]: Finished difference Result 1672 states and 2247 transitions. [2022-12-13 11:54:16,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 11:54:16,801 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:16,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:16,802 INFO L225 Difference]: With dead ends: 1672 [2022-12-13 11:54:16,802 INFO L226 Difference]: Without dead ends: 1581 [2022-12-13 11:54:16,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 11:54:16,803 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 7369 mSDsluCounter, 2569 mSDsCounter, 0 mSdLazyCounter, 2643 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7369 SdHoareTripleChecker+Valid, 3329 SdHoareTripleChecker+Invalid, 2857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 2643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:16,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7369 Valid, 3329 Invalid, 2857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 2643 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 11:54:16,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2022-12-13 11:54:16,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 645. [2022-12-13 11:54:16,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.332263242375602) internal successors, (830), 644 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:16,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 830 transitions. [2022-12-13 11:54:16,958 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 830 transitions. Word has length 98 [2022-12-13 11:54:16,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:16,958 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 830 transitions. [2022-12-13 11:54:16,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:16,958 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 830 transitions. [2022-12-13 11:54:16,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:16,959 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:16,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:16,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-13 11:54:16,959 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:16,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:16,959 INFO L85 PathProgramCache]: Analyzing trace with hash 385217934, now seen corresponding path program 1 times [2022-12-13 11:54:16,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:16,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924191618] [2022-12-13 11:54:16,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:16,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:17,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:17,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:17,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924191618] [2022-12-13 11:54:17,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924191618] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:17,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:17,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:17,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930064811] [2022-12-13 11:54:17,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:17,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:17,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:17,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:17,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:17,134 INFO L87 Difference]: Start difference. First operand 645 states and 830 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:18,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:18,612 INFO L93 Difference]: Finished difference Result 1198 states and 1574 transitions. [2022-12-13 11:54:18,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:18,613 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:18,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:18,614 INFO L225 Difference]: With dead ends: 1198 [2022-12-13 11:54:18,614 INFO L226 Difference]: Without dead ends: 1112 [2022-12-13 11:54:18,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:18,615 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 4172 mSDsluCounter, 2610 mSDsCounter, 0 mSdLazyCounter, 2405 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4172 SdHoareTripleChecker+Valid, 3215 SdHoareTripleChecker+Invalid, 2413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:18,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4172 Valid, 3215 Invalid, 2413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2405 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 11:54:18,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-12-13 11:54:18,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 645. [2022-12-13 11:54:18,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.3306581059390048) internal successors, (829), 644 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:18,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 829 transitions. [2022-12-13 11:54:18,770 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 829 transitions. Word has length 98 [2022-12-13 11:54:18,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:18,770 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 829 transitions. [2022-12-13 11:54:18,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:18,770 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 829 transitions. [2022-12-13 11:54:18,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:18,771 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:18,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:18,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-13 11:54:18,771 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:18,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:18,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1288712520, now seen corresponding path program 1 times [2022-12-13 11:54:18,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:18,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442912819] [2022-12-13 11:54:18,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:18,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:18,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:18,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:18,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442912819] [2022-12-13 11:54:18,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442912819] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:18,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:18,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:18,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802120311] [2022-12-13 11:54:18,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:18,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:18,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:18,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:18,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:18,944 INFO L87 Difference]: Start difference. First operand 645 states and 829 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:20,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:20,311 INFO L93 Difference]: Finished difference Result 1160 states and 1506 transitions. [2022-12-13 11:54:20,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:20,311 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:20,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:20,312 INFO L225 Difference]: With dead ends: 1160 [2022-12-13 11:54:20,313 INFO L226 Difference]: Without dead ends: 1084 [2022-12-13 11:54:20,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:20,313 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 4001 mSDsluCounter, 2234 mSDsCounter, 0 mSdLazyCounter, 2149 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4001 SdHoareTripleChecker+Valid, 2765 SdHoareTripleChecker+Invalid, 2156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:20,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4001 Valid, 2765 Invalid, 2156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2149 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:54:20,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2022-12-13 11:54:20,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 645. [2022-12-13 11:54:20,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.3290529695024078) internal successors, (828), 644 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:20,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 828 transitions. [2022-12-13 11:54:20,472 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 828 transitions. Word has length 98 [2022-12-13 11:54:20,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:20,472 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 828 transitions. [2022-12-13 11:54:20,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:20,472 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 828 transitions. [2022-12-13 11:54:20,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:20,473 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:20,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:20,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-13 11:54:20,473 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:20,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:20,474 INFO L85 PathProgramCache]: Analyzing trace with hash -285632464, now seen corresponding path program 1 times [2022-12-13 11:54:20,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:20,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549649222] [2022-12-13 11:54:20,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:20,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:20,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:20,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:20,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549649222] [2022-12-13 11:54:20,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549649222] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:20,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:20,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:20,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173510749] [2022-12-13 11:54:20,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:20,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:20,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:20,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:20,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:20,617 INFO L87 Difference]: Start difference. First operand 645 states and 828 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:21,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:21,857 INFO L93 Difference]: Finished difference Result 1246 states and 1636 transitions. [2022-12-13 11:54:21,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:21,858 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:21,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:21,859 INFO L225 Difference]: With dead ends: 1246 [2022-12-13 11:54:21,859 INFO L226 Difference]: Without dead ends: 1132 [2022-12-13 11:54:21,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:21,860 INFO L413 NwaCegarLoop]: 781 mSDtfsCounter, 3113 mSDsluCounter, 2284 mSDsCounter, 0 mSdLazyCounter, 2308 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3113 SdHoareTripleChecker+Valid, 3065 SdHoareTripleChecker+Invalid, 2316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:21,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3113 Valid, 3065 Invalid, 2316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2308 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 11:54:21,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2022-12-13 11:54:22,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 645. [2022-12-13 11:54:22,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.3274478330658106) internal successors, (827), 644 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:22,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 827 transitions. [2022-12-13 11:54:22,021 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 827 transitions. Word has length 98 [2022-12-13 11:54:22,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:22,022 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 827 transitions. [2022-12-13 11:54:22,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:22,022 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 827 transitions. [2022-12-13 11:54:22,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:22,022 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:22,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:22,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-13 11:54:22,023 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:22,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:22,023 INFO L85 PathProgramCache]: Analyzing trace with hash 131410264, now seen corresponding path program 1 times [2022-12-13 11:54:22,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:22,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019963696] [2022-12-13 11:54:22,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:22,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:22,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:22,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:22,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019963696] [2022-12-13 11:54:22,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019963696] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:22,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:22,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:22,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091893749] [2022-12-13 11:54:22,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:22,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:22,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:22,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:22,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:22,160 INFO L87 Difference]: Start difference. First operand 645 states and 827 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:23,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:23,323 INFO L93 Difference]: Finished difference Result 1163 states and 1507 transitions. [2022-12-13 11:54:23,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:23,323 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:23,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:23,325 INFO L225 Difference]: With dead ends: 1163 [2022-12-13 11:54:23,325 INFO L226 Difference]: Without dead ends: 1084 [2022-12-13 11:54:23,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:23,325 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 3465 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3465 SdHoareTripleChecker+Valid, 2201 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:23,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3465 Valid, 2201 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1752 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 11:54:23,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2022-12-13 11:54:23,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 645. [2022-12-13 11:54:23,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.3258426966292134) internal successors, (826), 644 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:23,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 826 transitions. [2022-12-13 11:54:23,489 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 826 transitions. Word has length 98 [2022-12-13 11:54:23,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:23,489 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 826 transitions. [2022-12-13 11:54:23,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:23,489 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 826 transitions. [2022-12-13 11:54:23,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:23,490 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:23,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:23,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-13 11:54:23,490 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:23,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:23,490 INFO L85 PathProgramCache]: Analyzing trace with hash 2043607366, now seen corresponding path program 1 times [2022-12-13 11:54:23,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:23,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70841784] [2022-12-13 11:54:23,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:23,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:23,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:23,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:23,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70841784] [2022-12-13 11:54:23,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70841784] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:23,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:23,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:23,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096005407] [2022-12-13 11:54:23,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:23,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:23,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:23,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:23,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:23,669 INFO L87 Difference]: Start difference. First operand 645 states and 826 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:25,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:25,336 INFO L93 Difference]: Finished difference Result 1203 states and 1575 transitions. [2022-12-13 11:54:25,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:25,337 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:25,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:25,338 INFO L225 Difference]: With dead ends: 1203 [2022-12-13 11:54:25,338 INFO L226 Difference]: Without dead ends: 1112 [2022-12-13 11:54:25,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:25,339 INFO L413 NwaCegarLoop]: 742 mSDtfsCounter, 3634 mSDsluCounter, 2955 mSDsCounter, 0 mSdLazyCounter, 2771 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3634 SdHoareTripleChecker+Valid, 3697 SdHoareTripleChecker+Invalid, 2777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:25,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3634 Valid, 3697 Invalid, 2777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2771 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 11:54:25,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-12-13 11:54:25,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 645. [2022-12-13 11:54:25,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.3242375601926164) internal successors, (825), 644 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:25,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 825 transitions. [2022-12-13 11:54:25,504 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 825 transitions. Word has length 98 [2022-12-13 11:54:25,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:25,504 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 825 transitions. [2022-12-13 11:54:25,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:25,504 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 825 transitions. [2022-12-13 11:54:25,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:25,505 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:25,505 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:25,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-13 11:54:25,505 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:25,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:25,505 INFO L85 PathProgramCache]: Analyzing trace with hash 530098373, now seen corresponding path program 1 times [2022-12-13 11:54:25,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:25,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269677931] [2022-12-13 11:54:25,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:25,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:25,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:25,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:25,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269677931] [2022-12-13 11:54:25,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269677931] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:25,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:25,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 11:54:25,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172085278] [2022-12-13 11:54:25,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:25,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 11:54:25,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:25,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 11:54:25,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:54:25,775 INFO L87 Difference]: Start difference. First operand 645 states and 825 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:28,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:28,689 INFO L93 Difference]: Finished difference Result 1662 states and 2229 transitions. [2022-12-13 11:54:28,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 11:54:28,690 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:28,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:28,691 INFO L225 Difference]: With dead ends: 1662 [2022-12-13 11:54:28,691 INFO L226 Difference]: Without dead ends: 1576 [2022-12-13 11:54:28,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 11:54:28,692 INFO L413 NwaCegarLoop]: 773 mSDtfsCounter, 6669 mSDsluCounter, 3242 mSDsCounter, 0 mSdLazyCounter, 3132 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6669 SdHoareTripleChecker+Valid, 4015 SdHoareTripleChecker+Invalid, 3347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 3132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:28,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6669 Valid, 4015 Invalid, 3347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 3132 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 11:54:28,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2022-12-13 11:54:28,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 649. [2022-12-13 11:54:28,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 627 states have (on average 1.3221690590111643) internal successors, (829), 648 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:28,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 829 transitions. [2022-12-13 11:54:28,867 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 829 transitions. Word has length 98 [2022-12-13 11:54:28,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:28,867 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 829 transitions. [2022-12-13 11:54:28,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:28,867 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 829 transitions. [2022-12-13 11:54:28,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:28,868 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:28,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:28,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-13 11:54:28,868 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:28,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:28,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1144212400, now seen corresponding path program 1 times [2022-12-13 11:54:28,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:28,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947105124] [2022-12-13 11:54:28,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:28,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:29,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:29,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:29,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947105124] [2022-12-13 11:54:29,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947105124] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:29,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:29,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:29,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988488874] [2022-12-13 11:54:29,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:29,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:29,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:29,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:29,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:29,012 INFO L87 Difference]: Start difference. First operand 649 states and 829 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:30,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:30,240 INFO L93 Difference]: Finished difference Result 1164 states and 1506 transitions. [2022-12-13 11:54:30,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:30,240 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:30,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:30,242 INFO L225 Difference]: With dead ends: 1164 [2022-12-13 11:54:30,242 INFO L226 Difference]: Without dead ends: 1088 [2022-12-13 11:54:30,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:30,242 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 3416 mSDsluCounter, 1712 mSDsCounter, 0 mSdLazyCounter, 1768 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3416 SdHoareTripleChecker+Valid, 2257 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:30,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3416 Valid, 2257 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1768 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 11:54:30,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2022-12-13 11:54:30,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 649. [2022-12-13 11:54:30,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 627 states have (on average 1.3205741626794258) internal successors, (828), 648 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:30,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 828 transitions. [2022-12-13 11:54:30,426 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 828 transitions. Word has length 98 [2022-12-13 11:54:30,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:30,426 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 828 transitions. [2022-12-13 11:54:30,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:30,427 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 828 transitions. [2022-12-13 11:54:30,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:30,427 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:30,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:30,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-13 11:54:30,427 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:30,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:30,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1274413538, now seen corresponding path program 1 times [2022-12-13 11:54:30,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:30,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078281659] [2022-12-13 11:54:30,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:30,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:30,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:30,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:30,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078281659] [2022-12-13 11:54:30,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078281659] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:30,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:30,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:30,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470278079] [2022-12-13 11:54:30,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:30,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:30,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:30,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:30,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:30,613 INFO L87 Difference]: Start difference. First operand 649 states and 828 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:32,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:32,692 INFO L93 Difference]: Finished difference Result 1194 states and 1562 transitions. [2022-12-13 11:54:32,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:32,693 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:32,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:32,694 INFO L225 Difference]: With dead ends: 1194 [2022-12-13 11:54:32,695 INFO L226 Difference]: Without dead ends: 1112 [2022-12-13 11:54:32,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:32,696 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 4148 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4148 SdHoareTripleChecker+Valid, 3280 SdHoareTripleChecker+Invalid, 2420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:32,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4148 Valid, 3280 Invalid, 2420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2412 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 11:54:32,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-12-13 11:54:32,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 649. [2022-12-13 11:54:32,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 627 states have (on average 1.3189792663476874) internal successors, (827), 648 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:32,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 827 transitions. [2022-12-13 11:54:32,876 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 827 transitions. Word has length 98 [2022-12-13 11:54:32,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:32,876 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 827 transitions. [2022-12-13 11:54:32,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:32,876 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 827 transitions. [2022-12-13 11:54:32,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:32,876 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:32,877 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:32,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-13 11:54:32,877 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:32,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:32,877 INFO L85 PathProgramCache]: Analyzing trace with hash -2030828310, now seen corresponding path program 1 times [2022-12-13 11:54:32,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:32,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9258595] [2022-12-13 11:54:32,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:32,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:33,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:33,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:33,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9258595] [2022-12-13 11:54:33,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9258595] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:33,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:33,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:33,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480110219] [2022-12-13 11:54:33,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:33,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:33,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:33,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:33,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:33,077 INFO L87 Difference]: Start difference. First operand 649 states and 827 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:34,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:34,515 INFO L93 Difference]: Finished difference Result 1162 states and 1502 transitions. [2022-12-13 11:54:34,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:34,516 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:34,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:34,517 INFO L225 Difference]: With dead ends: 1162 [2022-12-13 11:54:34,517 INFO L226 Difference]: Without dead ends: 1088 [2022-12-13 11:54:34,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:34,517 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 3943 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3943 SdHoareTripleChecker+Valid, 2837 SdHoareTripleChecker+Invalid, 2178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:34,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3943 Valid, 2837 Invalid, 2178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:54:34,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2022-12-13 11:54:34,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 649. [2022-12-13 11:54:34,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 627 states have (on average 1.3173843700159489) internal successors, (826), 648 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:34,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 826 transitions. [2022-12-13 11:54:34,704 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 826 transitions. Word has length 98 [2022-12-13 11:54:34,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:34,704 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 826 transitions. [2022-12-13 11:54:34,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:34,704 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 826 transitions. [2022-12-13 11:54:34,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:34,704 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:34,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:34,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-13 11:54:34,705 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:34,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:34,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1081413880, now seen corresponding path program 1 times [2022-12-13 11:54:34,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:34,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433377206] [2022-12-13 11:54:34,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:34,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:34,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:34,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:34,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433377206] [2022-12-13 11:54:34,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433377206] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:34,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:34,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:34,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147516550] [2022-12-13 11:54:34,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:34,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:34,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:34,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:34,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:34,875 INFO L87 Difference]: Start difference. First operand 649 states and 826 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:36,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:36,513 INFO L93 Difference]: Finished difference Result 1093 states and 1398 transitions. [2022-12-13 11:54:36,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:36,513 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:36,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:36,514 INFO L225 Difference]: With dead ends: 1093 [2022-12-13 11:54:36,515 INFO L226 Difference]: Without dead ends: 1088 [2022-12-13 11:54:36,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:36,515 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 3941 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 2162 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3941 SdHoareTripleChecker+Valid, 2838 SdHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:36,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3941 Valid, 2838 Invalid, 2169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2162 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:54:36,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2022-12-13 11:54:36,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 649. [2022-12-13 11:54:36,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 627 states have (on average 1.3157894736842106) internal successors, (825), 648 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:36,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 825 transitions. [2022-12-13 11:54:36,701 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 825 transitions. Word has length 98 [2022-12-13 11:54:36,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:36,701 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 825 transitions. [2022-12-13 11:54:36,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:36,702 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 825 transitions. [2022-12-13 11:54:36,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:36,702 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:36,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:36,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-12-13 11:54:36,702 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:36,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:36,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1301356314, now seen corresponding path program 1 times [2022-12-13 11:54:36,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:36,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844474647] [2022-12-13 11:54:36,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:36,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:36,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:36,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:36,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844474647] [2022-12-13 11:54:36,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844474647] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:36,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:36,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 11:54:36,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539935068] [2022-12-13 11:54:36,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:36,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 11:54:36,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:36,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 11:54:36,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:54:36,978 INFO L87 Difference]: Start difference. First operand 649 states and 825 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:39,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:39,843 INFO L93 Difference]: Finished difference Result 1598 states and 2125 transitions. [2022-12-13 11:54:39,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 11:54:39,844 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:39,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:39,846 INFO L225 Difference]: With dead ends: 1598 [2022-12-13 11:54:39,846 INFO L226 Difference]: Without dead ends: 1581 [2022-12-13 11:54:39,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 11:54:39,847 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 7242 mSDsluCounter, 2989 mSDsCounter, 0 mSdLazyCounter, 2922 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7242 SdHoareTripleChecker+Valid, 3758 SdHoareTripleChecker+Invalid, 3133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 2922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:39,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7242 Valid, 3758 Invalid, 3133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 2922 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 11:54:39,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2022-12-13 11:54:40,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 653. [2022-12-13 11:54:40,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 631 states have (on average 1.3137876386687797) internal successors, (829), 652 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:40,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 829 transitions. [2022-12-13 11:54:40,053 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 829 transitions. Word has length 98 [2022-12-13 11:54:40,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:40,053 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 829 transitions. [2022-12-13 11:54:40,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:40,053 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 829 transitions. [2022-12-13 11:54:40,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:40,053 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:40,054 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:40,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-12-13 11:54:40,054 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:40,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:40,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1591996391, now seen corresponding path program 1 times [2022-12-13 11:54:40,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:40,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291614227] [2022-12-13 11:54:40,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:40,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:40,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:40,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:40,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291614227] [2022-12-13 11:54:40,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291614227] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:40,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:40,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:40,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80471791] [2022-12-13 11:54:40,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:40,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:40,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:40,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:40,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:40,205 INFO L87 Difference]: Start difference. First operand 653 states and 829 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:41,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:41,651 INFO L93 Difference]: Finished difference Result 1168 states and 1506 transitions. [2022-12-13 11:54:41,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:41,652 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:41,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:41,653 INFO L225 Difference]: With dead ends: 1168 [2022-12-13 11:54:41,653 INFO L226 Difference]: Without dead ends: 1092 [2022-12-13 11:54:41,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:41,653 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 2357 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2357 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 1778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:41,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2357 Valid, 2277 Invalid, 1778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 11:54:41,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2022-12-13 11:54:41,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 653. [2022-12-13 11:54:41,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 631 states have (on average 1.312202852614897) internal successors, (828), 652 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:41,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 828 transitions. [2022-12-13 11:54:41,849 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 828 transitions. Word has length 98 [2022-12-13 11:54:41,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:41,849 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 828 transitions. [2022-12-13 11:54:41,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:41,850 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 828 transitions. [2022-12-13 11:54:41,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:41,850 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:41,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:41,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-12-13 11:54:41,850 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:41,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:41,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1028777306, now seen corresponding path program 1 times [2022-12-13 11:54:41,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:41,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128156168] [2022-12-13 11:54:41,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:41,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:42,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:42,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:42,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128156168] [2022-12-13 11:54:42,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128156168] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:42,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:42,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:42,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375034907] [2022-12-13 11:54:42,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:42,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:42,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:42,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:42,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:42,021 INFO L87 Difference]: Start difference. First operand 653 states and 828 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:43,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:43,775 INFO L93 Difference]: Finished difference Result 1198 states and 1559 transitions. [2022-12-13 11:54:43,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:43,775 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:43,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:43,776 INFO L225 Difference]: With dead ends: 1198 [2022-12-13 11:54:43,776 INFO L226 Difference]: Without dead ends: 1112 [2022-12-13 11:54:43,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:43,776 INFO L413 NwaCegarLoop]: 718 mSDtfsCounter, 3636 mSDsluCounter, 2892 mSDsCounter, 0 mSdLazyCounter, 2676 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3636 SdHoareTripleChecker+Valid, 3610 SdHoareTripleChecker+Invalid, 2682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:43,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3636 Valid, 3610 Invalid, 2682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2676 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 11:54:43,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-12-13 11:54:43,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 653. [2022-12-13 11:54:43,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 631 states have (on average 1.3106180665610143) internal successors, (827), 652 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:43,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 827 transitions. [2022-12-13 11:54:43,975 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 827 transitions. Word has length 98 [2022-12-13 11:54:43,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:43,975 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 827 transitions. [2022-12-13 11:54:43,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:43,975 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 827 transitions. [2022-12-13 11:54:43,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:43,976 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:43,976 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:43,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-12-13 11:54:43,976 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:43,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:43,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1596017491, now seen corresponding path program 1 times [2022-12-13 11:54:43,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:43,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162386668] [2022-12-13 11:54:43,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:43,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:44,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:44,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:44,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162386668] [2022-12-13 11:54:44,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162386668] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:44,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:44,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:44,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116038634] [2022-12-13 11:54:44,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:44,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:44,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:44,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:44,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:44,140 INFO L87 Difference]: Start difference. First operand 653 states and 827 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:45,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:45,866 INFO L93 Difference]: Finished difference Result 1171 states and 1507 transitions. [2022-12-13 11:54:45,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:45,867 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:45,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:45,867 INFO L225 Difference]: With dead ends: 1171 [2022-12-13 11:54:45,867 INFO L226 Difference]: Without dead ends: 1092 [2022-12-13 11:54:45,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:45,868 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 3915 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 2170 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3915 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 2177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:45,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3915 Valid, 2869 Invalid, 2177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2170 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 11:54:45,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2022-12-13 11:54:46,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 653. [2022-12-13 11:54:46,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 631 states have (on average 1.3090332805071316) internal successors, (826), 652 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:46,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 826 transitions. [2022-12-13 11:54:46,070 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 826 transitions. Word has length 98 [2022-12-13 11:54:46,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:46,070 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 826 transitions. [2022-12-13 11:54:46,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:46,070 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 826 transitions. [2022-12-13 11:54:46,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:46,071 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:46,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:46,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-12-13 11:54:46,071 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:46,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:46,071 INFO L85 PathProgramCache]: Analyzing trace with hash 316179611, now seen corresponding path program 1 times [2022-12-13 11:54:46,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:46,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134594628] [2022-12-13 11:54:46,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:46,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:46,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:46,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:46,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134594628] [2022-12-13 11:54:46,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134594628] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:46,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:46,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 11:54:46,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731434119] [2022-12-13 11:54:46,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:46,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 11:54:46,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:46,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 11:54:46,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:54:46,329 INFO L87 Difference]: Start difference. First operand 653 states and 826 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:49,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:49,341 INFO L93 Difference]: Finished difference Result 1672 states and 2229 transitions. [2022-12-13 11:54:49,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 11:54:49,342 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:49,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:49,343 INFO L225 Difference]: With dead ends: 1672 [2022-12-13 11:54:49,343 INFO L226 Difference]: Without dead ends: 1581 [2022-12-13 11:54:49,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 11:54:49,344 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 6031 mSDsluCounter, 3286 mSDsCounter, 0 mSdLazyCounter, 3128 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6031 SdHoareTripleChecker+Valid, 4044 SdHoareTripleChecker+Invalid, 3341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 3128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:49,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6031 Valid, 4044 Invalid, 3341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 3128 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 11:54:49,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2022-12-13 11:54:49,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 657. [2022-12-13 11:54:49,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 635 states have (on average 1.3070866141732282) internal successors, (830), 656 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:49,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 830 transitions. [2022-12-13 11:54:49,555 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 830 transitions. Word has length 98 [2022-12-13 11:54:49,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:49,555 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 830 transitions. [2022-12-13 11:54:49,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:49,555 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 830 transitions. [2022-12-13 11:54:49,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:49,556 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:49,556 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:49,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-12-13 11:54:49,556 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:49,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:49,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1085915592, now seen corresponding path program 1 times [2022-12-13 11:54:49,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:49,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500966406] [2022-12-13 11:54:49,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:49,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:49,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:49,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:49,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500966406] [2022-12-13 11:54:49,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500966406] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:49,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:49,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:49,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016101482] [2022-12-13 11:54:49,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:49,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:49,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:49,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:49,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:49,732 INFO L87 Difference]: Start difference. First operand 657 states and 830 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:51,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:51,458 INFO L93 Difference]: Finished difference Result 1172 states and 1507 transitions. [2022-12-13 11:54:51,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:51,459 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:51,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:51,460 INFO L225 Difference]: With dead ends: 1172 [2022-12-13 11:54:51,460 INFO L226 Difference]: Without dead ends: 1096 [2022-12-13 11:54:51,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:51,460 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 3908 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 2170 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3908 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 2177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:51,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3908 Valid, 2869 Invalid, 2177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2170 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 11:54:51,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-12-13 11:54:51,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 657. [2022-12-13 11:54:51,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 635 states have (on average 1.3055118110236221) internal successors, (829), 656 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:51,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 829 transitions. [2022-12-13 11:54:51,672 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 829 transitions. Word has length 98 [2022-12-13 11:54:51,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:51,672 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 829 transitions. [2022-12-13 11:54:51,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:51,672 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 829 transitions. [2022-12-13 11:54:51,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:51,673 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:51,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:51,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-12-13 11:54:51,673 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:51,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:51,673 INFO L85 PathProgramCache]: Analyzing trace with hash 588758619, now seen corresponding path program 1 times [2022-12-13 11:54:51,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:51,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120148037] [2022-12-13 11:54:51,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:51,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:51,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:51,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:51,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120148037] [2022-12-13 11:54:51,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120148037] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:51,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:51,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:51,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46428515] [2022-12-13 11:54:51,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:51,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:51,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:51,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:51,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:51,847 INFO L87 Difference]: Start difference. First operand 657 states and 829 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:53,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:53,637 INFO L93 Difference]: Finished difference Result 1198 states and 1555 transitions. [2022-12-13 11:54:53,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:53,638 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:53,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:53,639 INFO L225 Difference]: With dead ends: 1198 [2022-12-13 11:54:53,639 INFO L226 Difference]: Without dead ends: 1112 [2022-12-13 11:54:53,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:53,640 INFO L413 NwaCegarLoop]: 709 mSDtfsCounter, 3640 mSDsluCounter, 2863 mSDsCounter, 0 mSdLazyCounter, 2627 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3640 SdHoareTripleChecker+Valid, 3572 SdHoareTripleChecker+Invalid, 2633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:53,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3640 Valid, 3572 Invalid, 2633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2627 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 11:54:53,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-12-13 11:54:53,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 657. [2022-12-13 11:54:53,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 635 states have (on average 1.3039370078740158) internal successors, (828), 656 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:53,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 828 transitions. [2022-12-13 11:54:53,855 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 828 transitions. Word has length 98 [2022-12-13 11:54:53,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:53,855 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 828 transitions. [2022-12-13 11:54:53,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:53,855 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 828 transitions. [2022-12-13 11:54:53,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:53,856 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:53,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:53,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-12-13 11:54:53,856 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:53,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:53,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1615258738, now seen corresponding path program 1 times [2022-12-13 11:54:53,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:53,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164773415] [2022-12-13 11:54:53,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:53,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:54,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:54,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:54,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164773415] [2022-12-13 11:54:54,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164773415] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:54,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:54,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 11:54:54,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520535484] [2022-12-13 11:54:54,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:54,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 11:54:54,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:54,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 11:54:54,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:54:54,130 INFO L87 Difference]: Start difference. First operand 657 states and 828 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:57,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:57,453 INFO L93 Difference]: Finished difference Result 1662 states and 2216 transitions. [2022-12-13 11:54:57,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 11:54:57,453 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:57,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:57,454 INFO L225 Difference]: With dead ends: 1662 [2022-12-13 11:54:57,454 INFO L226 Difference]: Without dead ends: 1576 [2022-12-13 11:54:57,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 11:54:57,455 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 8274 mSDsluCounter, 3130 mSDsCounter, 0 mSdLazyCounter, 2967 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8274 SdHoareTripleChecker+Valid, 3871 SdHoareTripleChecker+Invalid, 3193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 2967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:57,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8274 Valid, 3871 Invalid, 3193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 2967 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 11:54:57,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2022-12-13 11:54:57,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 661. [2022-12-13 11:54:57,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 639 states have (on average 1.302034428794992) internal successors, (832), 660 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:57,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 832 transitions. [2022-12-13 11:54:57,683 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 832 transitions. Word has length 98 [2022-12-13 11:54:57,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:57,684 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 832 transitions. [2022-12-13 11:54:57,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:57,684 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 832 transitions. [2022-12-13 11:54:57,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:57,684 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:57,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:57,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-12-13 11:54:57,685 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:57,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:57,685 INFO L85 PathProgramCache]: Analyzing trace with hash 472842913, now seen corresponding path program 1 times [2022-12-13 11:54:57,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:57,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155952656] [2022-12-13 11:54:57,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:57,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:54:57,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:54:57,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:54:57,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155952656] [2022-12-13 11:54:57,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155952656] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:54:57,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:54:57,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:54:57,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698336898] [2022-12-13 11:54:57,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:54:57,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:54:57,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:54:57,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:54:57,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:54:57,867 INFO L87 Difference]: Start difference. First operand 661 states and 832 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:59,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:54:59,712 INFO L93 Difference]: Finished difference Result 1176 states and 1509 transitions. [2022-12-13 11:54:59,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:54:59,713 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:54:59,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:54:59,713 INFO L225 Difference]: With dead ends: 1176 [2022-12-13 11:54:59,713 INFO L226 Difference]: Without dead ends: 1100 [2022-12-13 11:54:59,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:54:59,714 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 3884 mSDsluCounter, 2339 mSDsCounter, 0 mSdLazyCounter, 2182 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3884 SdHoareTripleChecker+Valid, 2905 SdHoareTripleChecker+Invalid, 2189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 11:54:59,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3884 Valid, 2905 Invalid, 2189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2182 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 11:54:59,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2022-12-13 11:54:59,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 661. [2022-12-13 11:54:59,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 639 states have (on average 1.300469483568075) internal successors, (831), 660 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:59,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 831 transitions. [2022-12-13 11:54:59,939 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 831 transitions. Word has length 98 [2022-12-13 11:54:59,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:54:59,939 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 831 transitions. [2022-12-13 11:54:59,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:54:59,939 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 831 transitions. [2022-12-13 11:54:59,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:54:59,940 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:59,940 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:59,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-12-13 11:54:59,940 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:54:59,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:59,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1403498445, now seen corresponding path program 1 times [2022-12-13 11:54:59,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:59,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778901912] [2022-12-13 11:54:59,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:59,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:54:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:00,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:00,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:00,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778901912] [2022-12-13 11:55:00,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778901912] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:00,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:00,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:55:00,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367620189] [2022-12-13 11:55:00,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:00,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:55:00,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:00,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:55:00,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:55:00,123 INFO L87 Difference]: Start difference. First operand 661 states and 831 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:02,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:02,161 INFO L93 Difference]: Finished difference Result 1194 states and 1547 transitions. [2022-12-13 11:55:02,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:55:02,161 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:55:02,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:02,163 INFO L225 Difference]: With dead ends: 1194 [2022-12-13 11:55:02,163 INFO L226 Difference]: Without dead ends: 1112 [2022-12-13 11:55:02,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:55:02,163 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 3741 mSDsluCounter, 2676 mSDsCounter, 0 mSdLazyCounter, 2411 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3741 SdHoareTripleChecker+Valid, 3321 SdHoareTripleChecker+Invalid, 2418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:02,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3741 Valid, 3321 Invalid, 2418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2411 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 11:55:02,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-12-13 11:55:02,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 661. [2022-12-13 11:55:02,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 639 states have (on average 1.2989045383411582) internal successors, (830), 660 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:02,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 830 transitions. [2022-12-13 11:55:02,390 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 830 transitions. Word has length 98 [2022-12-13 11:55:02,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:02,390 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 830 transitions. [2022-12-13 11:55:02,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:02,390 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 830 transitions. [2022-12-13 11:55:02,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:55:02,391 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:02,391 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:02,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-12-13 11:55:02,391 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:02,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:02,391 INFO L85 PathProgramCache]: Analyzing trace with hash 105073130, now seen corresponding path program 1 times [2022-12-13 11:55:02,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:02,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121774100] [2022-12-13 11:55:02,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:02,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:02,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:02,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:02,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121774100] [2022-12-13 11:55:02,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121774100] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:02,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:02,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:55:02,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801854300] [2022-12-13 11:55:02,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:02,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:55:02,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:02,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:55:02,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:55:02,563 INFO L87 Difference]: Start difference. First operand 661 states and 830 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:04,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:04,354 INFO L93 Difference]: Finished difference Result 1194 states and 1546 transitions. [2022-12-13 11:55:04,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:55:04,355 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:55:04,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:04,356 INFO L225 Difference]: With dead ends: 1194 [2022-12-13 11:55:04,356 INFO L226 Difference]: Without dead ends: 1112 [2022-12-13 11:55:04,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:55:04,356 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 4052 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4052 SdHoareTripleChecker+Valid, 3208 SdHoareTripleChecker+Invalid, 2312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:04,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4052 Valid, 3208 Invalid, 2312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2305 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:55:04,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-12-13 11:55:04,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 661. [2022-12-13 11:55:04,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 639 states have (on average 1.297339593114241) internal successors, (829), 660 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:04,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 829 transitions. [2022-12-13 11:55:04,586 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 829 transitions. Word has length 98 [2022-12-13 11:55:04,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:04,586 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 829 transitions. [2022-12-13 11:55:04,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:04,586 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 829 transitions. [2022-12-13 11:55:04,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:55:04,587 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:04,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:04,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-12-13 11:55:04,587 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:04,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:04,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1773163569, now seen corresponding path program 1 times [2022-12-13 11:55:04,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:04,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810312464] [2022-12-13 11:55:04,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:04,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:04,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:04,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:04,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810312464] [2022-12-13 11:55:04,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810312464] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:04,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:04,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:55:04,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725971874] [2022-12-13 11:55:04,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:04,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:55:04,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:04,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:55:04,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:55:04,738 INFO L87 Difference]: Start difference. First operand 661 states and 829 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:06,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:06,573 INFO L93 Difference]: Finished difference Result 1174 states and 1504 transitions. [2022-12-13 11:55:06,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:55:06,574 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:55:06,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:06,574 INFO L225 Difference]: With dead ends: 1174 [2022-12-13 11:55:06,575 INFO L226 Difference]: Without dead ends: 1100 [2022-12-13 11:55:06,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:55:06,575 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 2286 mSDsluCounter, 1808 mSDsCounter, 0 mSdLazyCounter, 1821 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2286 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:06,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2286 Valid, 2385 Invalid, 1827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1821 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 11:55:06,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2022-12-13 11:55:06,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 661. [2022-12-13 11:55:06,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 639 states have (on average 1.295774647887324) internal successors, (828), 660 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:06,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 828 transitions. [2022-12-13 11:55:06,808 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 828 transitions. Word has length 98 [2022-12-13 11:55:06,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:06,808 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 828 transitions. [2022-12-13 11:55:06,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:06,808 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 828 transitions. [2022-12-13 11:55:06,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:55:06,808 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:06,809 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:06,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-12-13 11:55:06,809 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:06,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:06,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1981414488, now seen corresponding path program 1 times [2022-12-13 11:55:06,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:06,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673778223] [2022-12-13 11:55:06,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:06,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:06,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:06,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:06,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:06,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673778223] [2022-12-13 11:55:06,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673778223] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:06,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:06,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:55:06,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835125377] [2022-12-13 11:55:06,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:06,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:55:06,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:06,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:55:06,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:55:06,997 INFO L87 Difference]: Start difference. First operand 661 states and 828 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:08,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:08,986 INFO L93 Difference]: Finished difference Result 1176 states and 1505 transitions. [2022-12-13 11:55:08,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:55:08,986 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:55:08,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:08,987 INFO L225 Difference]: With dead ends: 1176 [2022-12-13 11:55:08,987 INFO L226 Difference]: Without dead ends: 1100 [2022-12-13 11:55:08,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:55:08,988 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 3844 mSDsluCounter, 2375 mSDsCounter, 0 mSdLazyCounter, 2198 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3844 SdHoareTripleChecker+Valid, 2953 SdHoareTripleChecker+Invalid, 2205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:08,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3844 Valid, 2953 Invalid, 2205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2198 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:55:08,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2022-12-13 11:55:09,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 661. [2022-12-13 11:55:09,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 639 states have (on average 1.294209702660407) internal successors, (827), 660 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:09,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 827 transitions. [2022-12-13 11:55:09,225 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 827 transitions. Word has length 98 [2022-12-13 11:55:09,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:09,226 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 827 transitions. [2022-12-13 11:55:09,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:09,226 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 827 transitions. [2022-12-13 11:55:09,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:55:09,226 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:09,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:09,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-12-13 11:55:09,227 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:09,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:09,227 INFO L85 PathProgramCache]: Analyzing trace with hash 716510655, now seen corresponding path program 1 times [2022-12-13 11:55:09,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:09,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204976714] [2022-12-13 11:55:09,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:09,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:09,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:09,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:09,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204976714] [2022-12-13 11:55:09,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204976714] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:09,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:09,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:55:09,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309390748] [2022-12-13 11:55:09,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:09,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:55:09,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:09,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:55:09,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:55:09,379 INFO L87 Difference]: Start difference. First operand 661 states and 827 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:10,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:10,857 INFO L93 Difference]: Finished difference Result 1105 states and 1399 transitions. [2022-12-13 11:55:10,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:55:10,857 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:55:10,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:10,858 INFO L225 Difference]: With dead ends: 1105 [2022-12-13 11:55:10,858 INFO L226 Difference]: Without dead ends: 1100 [2022-12-13 11:55:10,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:55:10,859 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 2177 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 1956 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2177 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:10,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2177 Valid, 2544 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1956 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 11:55:10,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2022-12-13 11:55:11,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 661. [2022-12-13 11:55:11,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 639 states have (on average 1.2926447574334898) internal successors, (826), 660 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:11,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 826 transitions. [2022-12-13 11:55:11,096 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 826 transitions. Word has length 98 [2022-12-13 11:55:11,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:11,097 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 826 transitions. [2022-12-13 11:55:11,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:11,097 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 826 transitions. [2022-12-13 11:55:11,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:55:11,097 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:11,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:11,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-12-13 11:55:11,098 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:11,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:11,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1342903942, now seen corresponding path program 1 times [2022-12-13 11:55:11,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:11,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716268361] [2022-12-13 11:55:11,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:11,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:11,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:11,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:11,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716268361] [2022-12-13 11:55:11,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716268361] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:11,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:11,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:55:11,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83855148] [2022-12-13 11:55:11,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:11,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:55:11,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:11,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:55:11,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:55:11,250 INFO L87 Difference]: Start difference. First operand 661 states and 826 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:12,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:12,775 INFO L93 Difference]: Finished difference Result 1174 states and 1500 transitions. [2022-12-13 11:55:12,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:55:12,776 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:55:12,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:12,776 INFO L225 Difference]: With dead ends: 1174 [2022-12-13 11:55:12,776 INFO L226 Difference]: Without dead ends: 1100 [2022-12-13 11:55:12,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:55:12,777 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 3266 mSDsluCounter, 1835 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3266 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 1811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:12,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3266 Valid, 2421 Invalid, 1811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 11:55:12,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2022-12-13 11:55:13,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 661. [2022-12-13 11:55:13,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 639 states have (on average 1.2910798122065728) internal successors, (825), 660 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:13,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 825 transitions. [2022-12-13 11:55:13,017 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 825 transitions. Word has length 98 [2022-12-13 11:55:13,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:13,017 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 825 transitions. [2022-12-13 11:55:13,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:13,017 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 825 transitions. [2022-12-13 11:55:13,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:55:13,017 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:13,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:13,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-12-13 11:55:13,018 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:13,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:13,018 INFO L85 PathProgramCache]: Analyzing trace with hash -23165618, now seen corresponding path program 1 times [2022-12-13 11:55:13,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:13,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328740950] [2022-12-13 11:55:13,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:13,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:13,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:13,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:13,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:13,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328740950] [2022-12-13 11:55:13,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328740950] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:13,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:13,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 11:55:13,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113966600] [2022-12-13 11:55:13,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:13,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 11:55:13,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:13,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 11:55:13,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:55:13,288 INFO L87 Difference]: Start difference. First operand 661 states and 825 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:16,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:16,711 INFO L93 Difference]: Finished difference Result 1654 states and 2196 transitions. [2022-12-13 11:55:16,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 11:55:16,712 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:55:16,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:16,713 INFO L225 Difference]: With dead ends: 1654 [2022-12-13 11:55:16,713 INFO L226 Difference]: Without dead ends: 1572 [2022-12-13 11:55:16,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 11:55:16,713 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 6134 mSDsluCounter, 2519 mSDsCounter, 0 mSdLazyCounter, 2451 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6134 SdHoareTripleChecker+Valid, 3247 SdHoareTripleChecker+Invalid, 2670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 2451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:16,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6134 Valid, 3247 Invalid, 2670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 2451 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 11:55:16,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2022-12-13 11:55:16,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 665. [2022-12-13 11:55:16,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 643 states have (on average 1.2892690513219285) internal successors, (829), 664 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:16,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 829 transitions. [2022-12-13 11:55:16,966 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 829 transitions. Word has length 98 [2022-12-13 11:55:16,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:16,966 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 829 transitions. [2022-12-13 11:55:16,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:16,966 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 829 transitions. [2022-12-13 11:55:16,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 11:55:16,967 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:16,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:16,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-12-13 11:55:16,967 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:16,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:16,967 INFO L85 PathProgramCache]: Analyzing trace with hash 311553357, now seen corresponding path program 1 times [2022-12-13 11:55:16,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:16,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45903555] [2022-12-13 11:55:16,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:16,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:17,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:17,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:17,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45903555] [2022-12-13 11:55:17,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45903555] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:17,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:17,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:55:17,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82452649] [2022-12-13 11:55:17,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:17,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:55:17,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:17,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:55:17,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:55:17,111 INFO L87 Difference]: Start difference. First operand 665 states and 829 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:18,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:18,726 INFO L93 Difference]: Finished difference Result 1178 states and 1503 transitions. [2022-12-13 11:55:18,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:55:18,727 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-13 11:55:18,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:18,727 INFO L225 Difference]: With dead ends: 1178 [2022-12-13 11:55:18,728 INFO L226 Difference]: Without dead ends: 1104 [2022-12-13 11:55:18,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:55:18,728 INFO L413 NwaCegarLoop]: 633 mSDtfsCounter, 2536 mSDsluCounter, 1908 mSDsCounter, 0 mSdLazyCounter, 1954 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2536 SdHoareTripleChecker+Valid, 2541 SdHoareTripleChecker+Invalid, 1960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:18,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2536 Valid, 2541 Invalid, 1960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1954 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 11:55:18,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2022-12-13 11:55:18,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 665. [2022-12-13 11:55:18,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 643 states have (on average 1.2877138413685847) internal successors, (828), 664 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:18,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 828 transitions. [2022-12-13 11:55:18,978 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 828 transitions. Word has length 98 [2022-12-13 11:55:18,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:18,979 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 828 transitions. [2022-12-13 11:55:18,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:18,979 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 828 transitions. [2022-12-13 11:55:18,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-12-13 11:55:18,979 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:18,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:18,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-12-13 11:55:18,979 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:18,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:18,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1243175494, now seen corresponding path program 1 times [2022-12-13 11:55:18,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:18,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547094776] [2022-12-13 11:55:18,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:18,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:19,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:19,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:19,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547094776] [2022-12-13 11:55:19,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547094776] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:19,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:19,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:55:19,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428702906] [2022-12-13 11:55:19,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:19,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:55:19,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:19,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:55:19,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:55:19,120 INFO L87 Difference]: Start difference. First operand 665 states and 828 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:20,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:20,579 INFO L93 Difference]: Finished difference Result 1203 states and 1545 transitions. [2022-12-13 11:55:20,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:55:20,580 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-12-13 11:55:20,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:20,581 INFO L225 Difference]: With dead ends: 1203 [2022-12-13 11:55:20,581 INFO L226 Difference]: Without dead ends: 1112 [2022-12-13 11:55:20,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:55:20,581 INFO L413 NwaCegarLoop]: 710 mSDtfsCounter, 3197 mSDsluCounter, 2110 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3197 SdHoareTripleChecker+Valid, 2820 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:20,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3197 Valid, 2820 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2038 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 11:55:20,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-12-13 11:55:20,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 661. [2022-12-13 11:55:20,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 639 states have (on average 1.2879499217527386) internal successors, (823), 660 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:20,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 823 transitions. [2022-12-13 11:55:20,843 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 823 transitions. Word has length 99 [2022-12-13 11:55:20,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:20,843 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 823 transitions. [2022-12-13 11:55:20,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:20,843 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 823 transitions. [2022-12-13 11:55:20,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-12-13 11:55:20,844 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:20,844 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:20,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-12-13 11:55:20,844 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:20,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:20,845 INFO L85 PathProgramCache]: Analyzing trace with hash -779826693, now seen corresponding path program 1 times [2022-12-13 11:55:20,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:20,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426251607] [2022-12-13 11:55:20,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:20,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:20,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:20,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:20,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426251607] [2022-12-13 11:55:20,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426251607] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:20,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:20,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:55:20,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596871385] [2022-12-13 11:55:20,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:20,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:55:20,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:20,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:55:20,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:55:20,992 INFO L87 Difference]: Start difference. First operand 661 states and 823 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:22,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:22,801 INFO L93 Difference]: Finished difference Result 1198 states and 1538 transitions. [2022-12-13 11:55:22,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:55:22,801 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-12-13 11:55:22,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:22,802 INFO L225 Difference]: With dead ends: 1198 [2022-12-13 11:55:22,802 INFO L226 Difference]: Without dead ends: 1112 [2022-12-13 11:55:22,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:55:22,803 INFO L413 NwaCegarLoop]: 718 mSDtfsCounter, 2020 mSDsluCounter, 2194 mSDsCounter, 0 mSdLazyCounter, 2102 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2020 SdHoareTripleChecker+Valid, 2912 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:22,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2020 Valid, 2912 Invalid, 2108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2102 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:55:22,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-12-13 11:55:23,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 657. [2022-12-13 11:55:23,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 635 states have (on average 1.2881889763779528) internal successors, (818), 656 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:23,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 818 transitions. [2022-12-13 11:55:23,058 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 818 transitions. Word has length 99 [2022-12-13 11:55:23,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:23,058 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 818 transitions. [2022-12-13 11:55:23,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:23,059 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 818 transitions. [2022-12-13 11:55:23,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-12-13 11:55:23,059 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:23,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:23,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-12-13 11:55:23,059 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:23,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:23,060 INFO L85 PathProgramCache]: Analyzing trace with hash 358996279, now seen corresponding path program 1 times [2022-12-13 11:55:23,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:23,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899783494] [2022-12-13 11:55:23,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:23,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:23,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:23,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:23,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899783494] [2022-12-13 11:55:23,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899783494] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:23,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:23,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:55:23,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965015540] [2022-12-13 11:55:23,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:23,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:55:23,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:23,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:55:23,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:55:23,205 INFO L87 Difference]: Start difference. First operand 657 states and 818 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:24,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:24,753 INFO L93 Difference]: Finished difference Result 1129 states and 1435 transitions. [2022-12-13 11:55:24,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:55:24,754 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-12-13 11:55:24,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:24,755 INFO L225 Difference]: With dead ends: 1129 [2022-12-13 11:55:24,755 INFO L226 Difference]: Without dead ends: 1112 [2022-12-13 11:55:24,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:55:24,755 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 3828 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 2120 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3828 SdHoareTripleChecker+Valid, 2955 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:24,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3828 Valid, 2955 Invalid, 2127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2120 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:55:24,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-12-13 11:55:25,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 653. [2022-12-13 11:55:25,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 631 states have (on average 1.2884310618066561) internal successors, (813), 652 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:25,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 813 transitions. [2022-12-13 11:55:25,008 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 813 transitions. Word has length 99 [2022-12-13 11:55:25,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:25,008 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 813 transitions. [2022-12-13 11:55:25,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:25,008 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 813 transitions. [2022-12-13 11:55:25,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-12-13 11:55:25,009 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:25,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:25,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-12-13 11:55:25,009 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:25,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:25,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1036997114, now seen corresponding path program 1 times [2022-12-13 11:55:25,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:25,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454338819] [2022-12-13 11:55:25,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:25,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:25,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:25,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:25,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454338819] [2022-12-13 11:55:25,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454338819] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:25,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:25,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:55:25,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531013609] [2022-12-13 11:55:25,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:25,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:55:25,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:25,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:55:25,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:55:25,148 INFO L87 Difference]: Start difference. First operand 653 states and 813 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:26,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:26,912 INFO L93 Difference]: Finished difference Result 1203 states and 1542 transitions. [2022-12-13 11:55:26,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:55:26,912 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-12-13 11:55:26,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:26,913 INFO L225 Difference]: With dead ends: 1203 [2022-12-13 11:55:26,913 INFO L226 Difference]: Without dead ends: 1112 [2022-12-13 11:55:26,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:55:26,914 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 2893 mSDsluCounter, 2260 mSDsCounter, 0 mSdLazyCounter, 2140 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2893 SdHoareTripleChecker+Valid, 3003 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:26,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2893 Valid, 3003 Invalid, 2147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2140 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:55:26,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-12-13 11:55:27,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 649. [2022-12-13 11:55:27,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 627 states have (on average 1.288676236044657) internal successors, (808), 648 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:27,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 808 transitions. [2022-12-13 11:55:27,165 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 808 transitions. Word has length 99 [2022-12-13 11:55:27,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:27,165 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 808 transitions. [2022-12-13 11:55:27,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:27,165 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 808 transitions. [2022-12-13 11:55:27,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-12-13 11:55:27,166 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:27,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:27,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-12-13 11:55:27,166 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:27,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:27,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1643745826, now seen corresponding path program 1 times [2022-12-13 11:55:27,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:27,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300266764] [2022-12-13 11:55:27,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:27,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:27,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:27,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:27,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300266764] [2022-12-13 11:55:27,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300266764] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:27,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:27,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:55:27,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589791752] [2022-12-13 11:55:27,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:27,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:55:27,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:27,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:55:27,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:55:27,305 INFO L87 Difference]: Start difference. First operand 649 states and 808 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:28,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:28,893 INFO L93 Difference]: Finished difference Result 1198 states and 1536 transitions. [2022-12-13 11:55:28,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:55:28,894 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-12-13 11:55:28,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:28,895 INFO L225 Difference]: With dead ends: 1198 [2022-12-13 11:55:28,895 INFO L226 Difference]: Without dead ends: 1112 [2022-12-13 11:55:28,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:55:28,895 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 1956 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1956 SdHoareTripleChecker+Valid, 3053 SdHoareTripleChecker+Invalid, 2165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:28,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1956 Valid, 3053 Invalid, 2165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2159 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 11:55:28,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-12-13 11:55:29,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 645. [2022-12-13 11:55:29,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.28892455858748) internal successors, (803), 644 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:29,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 803 transitions. [2022-12-13 11:55:29,146 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 803 transitions. Word has length 99 [2022-12-13 11:55:29,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:29,147 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 803 transitions. [2022-12-13 11:55:29,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:29,147 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 803 transitions. [2022-12-13 11:55:29,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-12-13 11:55:29,147 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:29,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:29,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-12-13 11:55:29,148 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:29,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:29,148 INFO L85 PathProgramCache]: Analyzing trace with hash -739792634, now seen corresponding path program 1 times [2022-12-13 11:55:29,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:29,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012636694] [2022-12-13 11:55:29,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:29,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:29,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:29,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:29,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012636694] [2022-12-13 11:55:29,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012636694] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:29,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:29,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:55:29,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763800263] [2022-12-13 11:55:29,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:29,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:55:29,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:29,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:55:29,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:55:29,285 INFO L87 Difference]: Start difference. First operand 645 states and 803 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:30,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:30,840 INFO L93 Difference]: Finished difference Result 1194 states and 1531 transitions. [2022-12-13 11:55:30,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:55:30,840 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-12-13 11:55:30,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:30,841 INFO L225 Difference]: With dead ends: 1194 [2022-12-13 11:55:30,841 INFO L226 Difference]: Without dead ends: 1112 [2022-12-13 11:55:30,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:55:30,842 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 1939 mSDsluCounter, 2324 mSDsCounter, 0 mSdLazyCounter, 2178 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1939 SdHoareTripleChecker+Valid, 3081 SdHoareTripleChecker+Invalid, 2184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:30,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1939 Valid, 3081 Invalid, 2184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2178 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 11:55:30,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-12-13 11:55:31,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 641. [2022-12-13 11:55:31,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.2891760904684977) internal successors, (798), 640 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:31,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 798 transitions. [2022-12-13 11:55:31,094 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 798 transitions. Word has length 99 [2022-12-13 11:55:31,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:31,094 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 798 transitions. [2022-12-13 11:55:31,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:31,095 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 798 transitions. [2022-12-13 11:55:31,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-12-13 11:55:31,095 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:31,095 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:31,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-12-13 11:55:31,095 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:31,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:31,096 INFO L85 PathProgramCache]: Analyzing trace with hash -23064076, now seen corresponding path program 1 times [2022-12-13 11:55:31,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:31,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837405386] [2022-12-13 11:55:31,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:31,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:31,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:31,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:31,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837405386] [2022-12-13 11:55:31,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837405386] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:31,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:31,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:55:31,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799524971] [2022-12-13 11:55:31,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:31,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:55:31,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:31,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:55:31,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:55:31,245 INFO L87 Difference]: Start difference. First operand 641 states and 798 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:33,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:33,146 INFO L93 Difference]: Finished difference Result 1155 states and 1472 transitions. [2022-12-13 11:55:33,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:55:33,146 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-12-13 11:55:33,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:33,147 INFO L225 Difference]: With dead ends: 1155 [2022-12-13 11:55:33,147 INFO L226 Difference]: Without dead ends: 1080 [2022-12-13 11:55:33,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:55:33,148 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 2065 mSDsluCounter, 2128 mSDsCounter, 0 mSdLazyCounter, 2088 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2065 SdHoareTripleChecker+Valid, 2812 SdHoareTripleChecker+Invalid, 2093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:33,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2065 Valid, 2812 Invalid, 2093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2088 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:55:33,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-12-13 11:55:33,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 641. [2022-12-13 11:55:33,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.2875605815831987) internal successors, (797), 640 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:33,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 797 transitions. [2022-12-13 11:55:33,402 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 797 transitions. Word has length 99 [2022-12-13 11:55:33,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:33,402 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 797 transitions. [2022-12-13 11:55:33,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:33,403 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 797 transitions. [2022-12-13 11:55:33,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-13 11:55:33,403 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:33,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:33,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-12-13 11:55:33,403 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:33,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:33,404 INFO L85 PathProgramCache]: Analyzing trace with hash -362080419, now seen corresponding path program 1 times [2022-12-13 11:55:33,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:33,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798793235] [2022-12-13 11:55:33,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:33,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:33,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:33,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:33,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798793235] [2022-12-13 11:55:33,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798793235] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:33,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:33,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 11:55:33,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207510784] [2022-12-13 11:55:33,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:33,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 11:55:33,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:33,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 11:55:33,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:55:33,785 INFO L87 Difference]: Start difference. First operand 641 states and 797 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:35,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:35,425 INFO L93 Difference]: Finished difference Result 1451 states and 1883 transitions. [2022-12-13 11:55:35,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 11:55:35,426 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-12-13 11:55:35,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:35,427 INFO L225 Difference]: With dead ends: 1451 [2022-12-13 11:55:35,427 INFO L226 Difference]: Without dead ends: 1314 [2022-12-13 11:55:35,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-12-13 11:55:35,427 INFO L413 NwaCegarLoop]: 1500 mSDtfsCounter, 3619 mSDsluCounter, 6272 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3619 SdHoareTripleChecker+Valid, 7772 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:35,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3619 Valid, 7772 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 11:55:35,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2022-12-13 11:55:35,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 578. [2022-12-13 11:55:35,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 560 states have (on average 1.2839285714285715) internal successors, (719), 577 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:35,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 719 transitions. [2022-12-13 11:55:35,683 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 719 transitions. Word has length 100 [2022-12-13 11:55:35,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:35,683 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 719 transitions. [2022-12-13 11:55:35,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:35,683 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 719 transitions. [2022-12-13 11:55:35,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-13 11:55:35,684 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:35,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:35,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-12-13 11:55:35,684 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:35,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:35,684 INFO L85 PathProgramCache]: Analyzing trace with hash 171611640, now seen corresponding path program 1 times [2022-12-13 11:55:35,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:35,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288420523] [2022-12-13 11:55:35,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:35,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:36,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:36,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:36,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288420523] [2022-12-13 11:55:36,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288420523] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:36,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:36,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 11:55:36,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413736249] [2022-12-13 11:55:36,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:36,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 11:55:36,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:36,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 11:55:36,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:55:36,072 INFO L87 Difference]: Start difference. First operand 578 states and 719 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:37,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:37,601 INFO L93 Difference]: Finished difference Result 916 states and 1146 transitions. [2022-12-13 11:55:37,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 11:55:37,601 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-12-13 11:55:37,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:37,602 INFO L225 Difference]: With dead ends: 916 [2022-12-13 11:55:37,602 INFO L226 Difference]: Without dead ends: 838 [2022-12-13 11:55:37,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:55:37,603 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 3377 mSDsluCounter, 2949 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3377 SdHoareTripleChecker+Valid, 3569 SdHoareTripleChecker+Invalid, 1766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:37,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3377 Valid, 3569 Invalid, 1766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:55:37,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-12-13 11:55:37,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 574. [2022-12-13 11:55:37,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 557 states have (on average 1.281867145421903) internal successors, (714), 573 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:37,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 714 transitions. [2022-12-13 11:55:37,870 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 714 transitions. Word has length 100 [2022-12-13 11:55:37,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:37,870 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 714 transitions. [2022-12-13 11:55:37,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:37,870 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 714 transitions. [2022-12-13 11:55:37,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-13 11:55:37,870 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:37,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:37,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-12-13 11:55:37,871 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:37,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:37,871 INFO L85 PathProgramCache]: Analyzing trace with hash -127286155, now seen corresponding path program 1 times [2022-12-13 11:55:37,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:37,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202155239] [2022-12-13 11:55:37,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:37,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:38,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:38,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:38,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202155239] [2022-12-13 11:55:38,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202155239] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:38,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:38,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 11:55:38,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702833411] [2022-12-13 11:55:38,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:38,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 11:55:38,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:38,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 11:55:38,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:55:38,250 INFO L87 Difference]: Start difference. First operand 574 states and 714 transitions. Second operand has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:41,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:41,414 INFO L93 Difference]: Finished difference Result 1877 states and 2452 transitions. [2022-12-13 11:55:41,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 11:55:41,414 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-12-13 11:55:41,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:41,415 INFO L225 Difference]: With dead ends: 1877 [2022-12-13 11:55:41,415 INFO L226 Difference]: Without dead ends: 1770 [2022-12-13 11:55:41,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-12-13 11:55:41,416 INFO L413 NwaCegarLoop]: 1720 mSDtfsCounter, 3243 mSDsluCounter, 12919 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3243 SdHoareTripleChecker+Valid, 14639 SdHoareTripleChecker+Invalid, 1626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:41,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3243 Valid, 14639 Invalid, 1626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1622 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 11:55:41,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2022-12-13 11:55:41,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 541. [2022-12-13 11:55:41,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 527 states have (on average 1.2789373814041747) internal successors, (674), 540 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:41,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 674 transitions. [2022-12-13 11:55:41,703 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 674 transitions. Word has length 100 [2022-12-13 11:55:41,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:41,704 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 674 transitions. [2022-12-13 11:55:41,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:41,704 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 674 transitions. [2022-12-13 11:55:41,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-13 11:55:41,704 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:41,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:41,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-12-13 11:55:41,704 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:41,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:41,705 INFO L85 PathProgramCache]: Analyzing trace with hash -798771389, now seen corresponding path program 1 times [2022-12-13 11:55:41,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:41,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869495295] [2022-12-13 11:55:41,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:41,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:42,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:42,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:42,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869495295] [2022-12-13 11:55:42,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869495295] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:42,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:42,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 11:55:42,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77061916] [2022-12-13 11:55:42,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:42,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 11:55:42,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:42,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 11:55:42,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:55:42,072 INFO L87 Difference]: Start difference. First operand 541 states and 674 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:43,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:43,596 INFO L93 Difference]: Finished difference Result 1138 states and 1495 transitions. [2022-12-13 11:55:43,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 11:55:43,597 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-12-13 11:55:43,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:43,598 INFO L225 Difference]: With dead ends: 1138 [2022-12-13 11:55:43,598 INFO L226 Difference]: Without dead ends: 946 [2022-12-13 11:55:43,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-12-13 11:55:43,598 INFO L413 NwaCegarLoop]: 1054 mSDtfsCounter, 2819 mSDsluCounter, 3678 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2819 SdHoareTripleChecker+Valid, 4732 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:43,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2819 Valid, 4732 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 11:55:43,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2022-12-13 11:55:43,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 423. [2022-12-13 11:55:43,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 414 states have (on average 1.2777777777777777) internal successors, (529), 422 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:43,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 529 transitions. [2022-12-13 11:55:43,850 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 529 transitions. Word has length 100 [2022-12-13 11:55:43,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:43,850 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 529 transitions. [2022-12-13 11:55:43,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:43,851 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 529 transitions. [2022-12-13 11:55:43,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-13 11:55:43,851 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:43,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:43,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-12-13 11:55:43,851 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:43,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:43,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1967013514, now seen corresponding path program 1 times [2022-12-13 11:55:43,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:43,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919685980] [2022-12-13 11:55:43,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:43,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:44,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:44,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:44,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919685980] [2022-12-13 11:55:44,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919685980] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:44,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:44,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 11:55:44,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282038103] [2022-12-13 11:55:44,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:44,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 11:55:44,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:44,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 11:55:44,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:55:44,180 INFO L87 Difference]: Start difference. First operand 423 states and 529 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:45,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:45,568 INFO L93 Difference]: Finished difference Result 694 states and 881 transitions. [2022-12-13 11:55:45,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 11:55:45,569 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-12-13 11:55:45,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:45,569 INFO L225 Difference]: With dead ends: 694 [2022-12-13 11:55:45,569 INFO L226 Difference]: Without dead ends: 616 [2022-12-13 11:55:45,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-12-13 11:55:45,570 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 2820 mSDsluCounter, 2237 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2820 SdHoareTripleChecker+Valid, 2685 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:45,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2820 Valid, 2685 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 11:55:45,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-12-13 11:55:45,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 419. [2022-12-13 11:55:45,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 411 states have (on average 1.2749391727493917) internal successors, (524), 418 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:45,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 524 transitions. [2022-12-13 11:55:45,822 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 524 transitions. Word has length 100 [2022-12-13 11:55:45,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:45,822 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 524 transitions. [2022-12-13 11:55:45,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:45,822 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 524 transitions. [2022-12-13 11:55:45,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-13 11:55:45,822 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:45,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:45,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-12-13 11:55:45,822 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:45,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:45,823 INFO L85 PathProgramCache]: Analyzing trace with hash 186496366, now seen corresponding path program 1 times [2022-12-13 11:55:45,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:45,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064346308] [2022-12-13 11:55:45,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:45,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:46,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:46,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:46,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064346308] [2022-12-13 11:55:46,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064346308] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:46,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:46,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-13 11:55:46,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020845075] [2022-12-13 11:55:46,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:46,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 11:55:46,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:46,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 11:55:46,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-12-13 11:55:46,308 INFO L87 Difference]: Start difference. First operand 419 states and 524 transitions. Second operand has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 15 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:48,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:48,247 INFO L93 Difference]: Finished difference Result 1086 states and 1426 transitions. [2022-12-13 11:55:48,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 11:55:48,248 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 15 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-12-13 11:55:48,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:48,248 INFO L225 Difference]: With dead ends: 1086 [2022-12-13 11:55:48,248 INFO L226 Difference]: Without dead ends: 799 [2022-12-13 11:55:48,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2022-12-13 11:55:48,249 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 3851 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3851 SdHoareTripleChecker+Valid, 4048 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:48,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3851 Valid, 4048 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 11:55:48,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2022-12-13 11:55:48,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 322. [2022-12-13 11:55:48,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 315 states have (on average 1.2571428571428571) internal successors, (396), 321 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:48,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 396 transitions. [2022-12-13 11:55:48,475 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 396 transitions. Word has length 100 [2022-12-13 11:55:48,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:48,475 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 396 transitions. [2022-12-13 11:55:48,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 15 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:48,475 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 396 transitions. [2022-12-13 11:55:48,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-13 11:55:48,476 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:48,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:48,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-12-13 11:55:48,476 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:48,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:48,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1740504427, now seen corresponding path program 1 times [2022-12-13 11:55:48,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:48,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208744175] [2022-12-13 11:55:48,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:48,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:48,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:48,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:48,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208744175] [2022-12-13 11:55:48,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208744175] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:48,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:48,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:55:48,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210220009] [2022-12-13 11:55:48,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:48,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:55:48,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:48,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:55:48,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:55:48,621 INFO L87 Difference]: Start difference. First operand 322 states and 396 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:49,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:49,692 INFO L93 Difference]: Finished difference Result 473 states and 588 transitions. [2022-12-13 11:55:49,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 11:55:49,692 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-12-13 11:55:49,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:49,693 INFO L225 Difference]: With dead ends: 473 [2022-12-13 11:55:49,693 INFO L226 Difference]: Without dead ends: 466 [2022-12-13 11:55:49,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2022-12-13 11:55:49,693 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 1969 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1969 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:49,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1969 Valid, 1063 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 11:55:49,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-12-13 11:55:49,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 322. [2022-12-13 11:55:49,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 315 states have (on average 1.253968253968254) internal successors, (395), 321 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) [2022-12-13 11:55:49,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 395 transitions. [2022-12-13 11:55:49,916 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 395 transitions. Word has length 101 [2022-12-13 11:55:49,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:49,916 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 395 transitions. [2022-12-13 11:55:49,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:49,916 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 395 transitions. [2022-12-13 11:55:49,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-13 11:55:49,917 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:49,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:49,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-12-13 11:55:49,917 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:49,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:49,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1904507925, now seen corresponding path program 1 times [2022-12-13 11:55:49,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:49,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369861107] [2022-12-13 11:55:49,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:49,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:50,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:50,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:50,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369861107] [2022-12-13 11:55:50,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369861107] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:50,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:50,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 11:55:50,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145392024] [2022-12-13 11:55:50,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:50,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 11:55:50,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:50,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 11:55:50,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:55:50,199 INFO L87 Difference]: Start difference. First operand 322 states and 395 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:53,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:53,874 INFO L93 Difference]: Finished difference Result 1204 states and 1625 transitions. [2022-12-13 11:55:53,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 11:55:53,874 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-12-13 11:55:53,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:53,875 INFO L225 Difference]: With dead ends: 1204 [2022-12-13 11:55:53,875 INFO L226 Difference]: Without dead ends: 1112 [2022-12-13 11:55:53,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 11:55:53,876 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 3713 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3713 SdHoareTripleChecker+Valid, 2422 SdHoareTripleChecker+Invalid, 1913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:53,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3713 Valid, 2422 Invalid, 1913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1832 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 11:55:53,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-12-13 11:55:54,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 326. [2022-12-13 11:55:54,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 319 states have (on average 1.250783699059561) internal successors, (399), 325 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:54,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 399 transitions. [2022-12-13 11:55:54,115 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 399 transitions. Word has length 101 [2022-12-13 11:55:54,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:54,115 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 399 transitions. [2022-12-13 11:55:54,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:54,115 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 399 transitions. [2022-12-13 11:55:54,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-13 11:55:54,115 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:54,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:54,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-12-13 11:55:54,115 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:54,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:54,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1612960383, now seen corresponding path program 1 times [2022-12-13 11:55:54,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:54,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767992145] [2022-12-13 11:55:54,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:54,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:54,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:54,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:54,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767992145] [2022-12-13 11:55:54,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767992145] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:54,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:54,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 11:55:54,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439781443] [2022-12-13 11:55:54,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:54,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 11:55:54,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:54,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 11:55:54,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:55:54,515 INFO L87 Difference]: Start difference. First operand 326 states and 399 transitions. Second operand has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:56,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:56,053 INFO L93 Difference]: Finished difference Result 815 states and 1047 transitions. [2022-12-13 11:55:56,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 11:55:56,054 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-12-13 11:55:56,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:56,054 INFO L225 Difference]: With dead ends: 815 [2022-12-13 11:55:56,054 INFO L226 Difference]: Without dead ends: 730 [2022-12-13 11:55:56,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-12-13 11:55:56,055 INFO L413 NwaCegarLoop]: 471 mSDtfsCounter, 2232 mSDsluCounter, 2596 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2232 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:56,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2232 Valid, 3067 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 11:55:56,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2022-12-13 11:55:56,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 315. [2022-12-13 11:55:56,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 309 states have (on average 1.2459546925566343) internal successors, (385), 314 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:56,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 385 transitions. [2022-12-13 11:55:56,296 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 385 transitions. Word has length 101 [2022-12-13 11:55:56,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:56,296 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 385 transitions. [2022-12-13 11:55:56,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:56,296 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 385 transitions. [2022-12-13 11:55:56,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-13 11:55:56,297 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:56,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:56,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-12-13 11:55:56,297 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:56,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:56,297 INFO L85 PathProgramCache]: Analyzing trace with hash -2060658306, now seen corresponding path program 1 times [2022-12-13 11:55:56,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:56,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406250826] [2022-12-13 11:55:56,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:56,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:56,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:56,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:56,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406250826] [2022-12-13 11:55:56,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406250826] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:56,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:56,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 11:55:56,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773341403] [2022-12-13 11:55:56,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:56,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 11:55:56,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:56,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 11:55:56,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:55:56,656 INFO L87 Difference]: Start difference. First operand 315 states and 385 transitions. Second operand has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:58,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:55:58,295 INFO L93 Difference]: Finished difference Result 816 states and 1046 transitions. [2022-12-13 11:55:58,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 11:55:58,296 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-12-13 11:55:58,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:55:58,296 INFO L225 Difference]: With dead ends: 816 [2022-12-13 11:55:58,296 INFO L226 Difference]: Without dead ends: 718 [2022-12-13 11:55:58,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-12-13 11:55:58,297 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 1766 mSDsluCounter, 3375 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 4030 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 11:55:58,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 4030 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 11:55:58,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2022-12-13 11:55:58,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 291. [2022-12-13 11:55:58,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 286 states have (on average 1.2377622377622377) internal successors, (354), 290 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:58,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 354 transitions. [2022-12-13 11:55:58,533 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 354 transitions. Word has length 101 [2022-12-13 11:55:58,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:55:58,533 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 354 transitions. [2022-12-13 11:55:58,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:55:58,533 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 354 transitions. [2022-12-13 11:55:58,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-13 11:55:58,533 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:55:58,534 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:55:58,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-12-13 11:55:58,534 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:55:58,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:55:58,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1370136807, now seen corresponding path program 1 times [2022-12-13 11:55:58,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:55:58,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971946874] [2022-12-13 11:55:58,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:55:58,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:55:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:55:58,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:55:58,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:55:58,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971946874] [2022-12-13 11:55:58,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971946874] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:55:58,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:55:58,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 11:55:58,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716852216] [2022-12-13 11:55:58,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:55:58,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 11:55:58,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:55:58,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 11:55:58,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:55:58,888 INFO L87 Difference]: Start difference. First operand 291 states and 354 transitions. Second operand has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:01,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:01,692 INFO L93 Difference]: Finished difference Result 1204 states and 1619 transitions. [2022-12-13 11:56:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 11:56:01,693 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-12-13 11:56:01,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:01,694 INFO L225 Difference]: With dead ends: 1204 [2022-12-13 11:56:01,694 INFO L226 Difference]: Without dead ends: 1123 [2022-12-13 11:56:01,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-12-13 11:56:01,695 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 2127 mSDsluCounter, 6449 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2127 SdHoareTripleChecker+Valid, 7258 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:01,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2127 Valid, 7258 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1087 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 11:56:01,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2022-12-13 11:56:01,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 284. [2022-12-13 11:56:01,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 279 states have (on average 1.2329749103942653) internal successors, (344), 283 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:01,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 344 transitions. [2022-12-13 11:56:01,935 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 344 transitions. Word has length 101 [2022-12-13 11:56:01,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:01,935 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 344 transitions. [2022-12-13 11:56:01,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:01,935 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 344 transitions. [2022-12-13 11:56:01,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-13 11:56:01,936 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:01,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:01,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-12-13 11:56:01,936 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:56:01,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:01,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1781714603, now seen corresponding path program 1 times [2022-12-13 11:56:01,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:01,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826416163] [2022-12-13 11:56:01,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:01,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:02,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:02,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:02,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826416163] [2022-12-13 11:56:02,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826416163] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:02,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:02,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 11:56:02,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473816870] [2022-12-13 11:56:02,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:02,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 11:56:02,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:02,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 11:56:02,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:56:02,303 INFO L87 Difference]: Start difference. First operand 284 states and 344 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:04,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:04,038 INFO L93 Difference]: Finished difference Result 794 states and 1059 transitions. [2022-12-13 11:56:04,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 11:56:04,039 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-12-13 11:56:04,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:04,039 INFO L225 Difference]: With dead ends: 794 [2022-12-13 11:56:04,039 INFO L226 Difference]: Without dead ends: 719 [2022-12-13 11:56:04,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-12-13 11:56:04,040 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 2014 mSDsluCounter, 2882 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2014 SdHoareTripleChecker+Valid, 3586 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:04,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2014 Valid, 3586 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 11:56:04,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2022-12-13 11:56:04,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 283. [2022-12-13 11:56:04,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.2302158273381294) internal successors, (342), 282 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:04,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 342 transitions. [2022-12-13 11:56:04,277 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 342 transitions. Word has length 101 [2022-12-13 11:56:04,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:04,277 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 342 transitions. [2022-12-13 11:56:04,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:04,278 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 342 transitions. [2022-12-13 11:56:04,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-13 11:56:04,278 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:04,278 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:04,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-12-13 11:56:04,278 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:56:04,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:04,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1981178433, now seen corresponding path program 1 times [2022-12-13 11:56:04,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:04,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463615602] [2022-12-13 11:56:04,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:04,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:04,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:04,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:04,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463615602] [2022-12-13 11:56:04,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463615602] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:04,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:04,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 11:56:04,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663307119] [2022-12-13 11:56:04,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:04,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 11:56:04,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:04,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 11:56:04,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:56:04,562 INFO L87 Difference]: Start difference. First operand 283 states and 342 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:05,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:05,678 INFO L93 Difference]: Finished difference Result 668 states and 865 transitions. [2022-12-13 11:56:05,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 11:56:05,679 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-12-13 11:56:05,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:05,679 INFO L225 Difference]: With dead ends: 668 [2022-12-13 11:56:05,679 INFO L226 Difference]: Without dead ends: 517 [2022-12-13 11:56:05,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2022-12-13 11:56:05,680 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 1913 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1913 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:05,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1913 Valid, 1188 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:56:05,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2022-12-13 11:56:05,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 206. [2022-12-13 11:56:05,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 203 states have (on average 1.2216748768472907) internal successors, (248), 205 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:05,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 248 transitions. [2022-12-13 11:56:05,878 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 248 transitions. Word has length 101 [2022-12-13 11:56:05,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:05,878 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 248 transitions. [2022-12-13 11:56:05,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:05,878 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 248 transitions. [2022-12-13 11:56:05,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-12-13 11:56:05,878 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:05,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:05,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-12-13 11:56:05,879 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:56:05,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:05,879 INFO L85 PathProgramCache]: Analyzing trace with hash 690209749, now seen corresponding path program 1 times [2022-12-13 11:56:05,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:05,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119118964] [2022-12-13 11:56:05,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:05,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:06,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:06,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:06,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119118964] [2022-12-13 11:56:06,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119118964] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:06,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:06,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:56:06,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151544156] [2022-12-13 11:56:06,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:06,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:56:06,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:06,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:56:06,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:56:06,039 INFO L87 Difference]: Start difference. First operand 206 states and 248 transitions. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:06,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:06,793 INFO L93 Difference]: Finished difference Result 407 states and 521 transitions. [2022-12-13 11:56:06,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 11:56:06,793 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-12-13 11:56:06,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:06,794 INFO L225 Difference]: With dead ends: 407 [2022-12-13 11:56:06,794 INFO L226 Difference]: Without dead ends: 315 [2022-12-13 11:56:06,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-12-13 11:56:06,794 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 835 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:06,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 762 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 11:56:06,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-12-13 11:56:06,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 202. [2022-12-13 11:56:06,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 199 states have (on average 1.221105527638191) internal successors, (243), 201 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:06,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 243 transitions. [2022-12-13 11:56:06,992 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 243 transitions. Word has length 102 [2022-12-13 11:56:06,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:06,992 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 243 transitions. [2022-12-13 11:56:06,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:06,992 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 243 transitions. [2022-12-13 11:56:06,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 11:56:06,993 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:06,993 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:06,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-12-13 11:56:06,993 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:56:06,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:06,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1191441136, now seen corresponding path program 1 times [2022-12-13 11:56:06,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:06,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085400988] [2022-12-13 11:56:06,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:06,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:08,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:08,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:08,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085400988] [2022-12-13 11:56:08,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085400988] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:08,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:08,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-12-13 11:56:08,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108947552] [2022-12-13 11:56:08,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:08,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-12-13 11:56:08,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:08,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-12-13 11:56:08,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=978, Unknown=0, NotChecked=0, Total=1056 [2022-12-13 11:56:08,597 INFO L87 Difference]: Start difference. First operand 202 states and 243 transitions. Second operand has 33 states, 33 states have (on average 3.121212121212121) internal successors, (103), 33 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:19,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:19,266 INFO L93 Difference]: Finished difference Result 1066 states and 1400 transitions. [2022-12-13 11:56:19,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-13 11:56:19,267 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.121212121212121) internal successors, (103), 33 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-12-13 11:56:19,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:19,268 INFO L225 Difference]: With dead ends: 1066 [2022-12-13 11:56:19,268 INFO L226 Difference]: Without dead ends: 1060 [2022-12-13 11:56:19,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=510, Invalid=3150, Unknown=0, NotChecked=0, Total=3660 [2022-12-13 11:56:19,269 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 2455 mSDsluCounter, 17731 mSDsCounter, 0 mSdLazyCounter, 9386 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2455 SdHoareTripleChecker+Valid, 18597 SdHoareTripleChecker+Invalid, 9400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 9386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:19,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2455 Valid, 18597 Invalid, 9400 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 9386 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-12-13 11:56:19,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2022-12-13 11:56:19,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 228. [2022-12-13 11:56:19,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 225 states have (on average 1.2222222222222223) internal successors, (275), 227 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:19,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 275 transitions. [2022-12-13 11:56:19,505 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 275 transitions. Word has length 103 [2022-12-13 11:56:19,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:19,505 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 275 transitions. [2022-12-13 11:56:19,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.121212121212121) internal successors, (103), 33 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:19,505 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 275 transitions. [2022-12-13 11:56:19,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 11:56:19,506 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:19,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:19,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-12-13 11:56:19,506 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:56:19,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:19,506 INFO L85 PathProgramCache]: Analyzing trace with hash -996428293, now seen corresponding path program 1 times [2022-12-13 11:56:19,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:19,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867068248] [2022-12-13 11:56:19,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:19,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:21,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:21,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:21,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867068248] [2022-12-13 11:56:21,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867068248] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:21,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:21,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-12-13 11:56:21,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255428570] [2022-12-13 11:56:21,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:21,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-12-13 11:56:21,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:21,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-12-13 11:56:21,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=980, Unknown=0, NotChecked=0, Total=1056 [2022-12-13 11:56:21,096 INFO L87 Difference]: Start difference. First operand 228 states and 275 transitions. Second operand has 33 states, 33 states have (on average 3.121212121212121) internal successors, (103), 33 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:29,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:29,875 INFO L93 Difference]: Finished difference Result 917 states and 1184 transitions. [2022-12-13 11:56:29,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-13 11:56:29,876 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.121212121212121) internal successors, (103), 33 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-12-13 11:56:29,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:29,877 INFO L225 Difference]: With dead ends: 917 [2022-12-13 11:56:29,877 INFO L226 Difference]: Without dead ends: 909 [2022-12-13 11:56:29,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=510, Invalid=3150, Unknown=0, NotChecked=0, Total=3660 [2022-12-13 11:56:29,878 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 2416 mSDsluCounter, 15920 mSDsCounter, 0 mSdLazyCounter, 8096 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2416 SdHoareTripleChecker+Valid, 16758 SdHoareTripleChecker+Invalid, 8110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 8096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:29,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2416 Valid, 16758 Invalid, 8110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 8096 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-12-13 11:56:29,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2022-12-13 11:56:30,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 232. [2022-12-13 11:56:30,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 229 states have (on average 1.222707423580786) internal successors, (280), 231 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:30,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 280 transitions. [2022-12-13 11:56:30,120 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 280 transitions. Word has length 103 [2022-12-13 11:56:30,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:30,120 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 280 transitions. [2022-12-13 11:56:30,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.121212121212121) internal successors, (103), 33 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:30,121 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 280 transitions. [2022-12-13 11:56:30,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-13 11:56:30,121 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:30,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:30,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-12-13 11:56:30,121 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:56:30,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:30,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1155230333, now seen corresponding path program 1 times [2022-12-13 11:56:30,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:30,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098977164] [2022-12-13 11:56:30,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:30,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:30,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:30,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:30,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098977164] [2022-12-13 11:56:30,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098977164] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:30,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:30,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 11:56:30,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056002811] [2022-12-13 11:56:30,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:30,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 11:56:30,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:30,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 11:56:30,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:56:30,448 INFO L87 Difference]: Start difference. First operand 232 states and 280 transitions. Second operand has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:31,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:31,748 INFO L93 Difference]: Finished difference Result 481 states and 631 transitions. [2022-12-13 11:56:31,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 11:56:31,748 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-12-13 11:56:31,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:31,749 INFO L225 Difference]: With dead ends: 481 [2022-12-13 11:56:31,749 INFO L226 Difference]: Without dead ends: 475 [2022-12-13 11:56:31,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-12-13 11:56:31,749 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 1245 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 2701 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:31,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1245 Valid, 2701 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 11:56:31,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-12-13 11:56:31,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 220. [2022-12-13 11:56:31,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 218 states have (on average 1.2201834862385321) internal successors, (266), 219 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:31,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 266 transitions. [2022-12-13 11:56:31,987 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 266 transitions. Word has length 104 [2022-12-13 11:56:31,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:31,987 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 266 transitions. [2022-12-13 11:56:31,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:31,987 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 266 transitions. [2022-12-13 11:56:31,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-13 11:56:31,987 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:31,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:31,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-12-13 11:56:31,987 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:56:31,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:31,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1350243176, now seen corresponding path program 1 times [2022-12-13 11:56:31,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:31,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888009931] [2022-12-13 11:56:31,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:31,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:32,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:32,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:32,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888009931] [2022-12-13 11:56:32,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888009931] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:32,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:32,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 11:56:32,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822724633] [2022-12-13 11:56:32,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:32,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 11:56:32,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:32,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 11:56:32,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:56:32,367 INFO L87 Difference]: Start difference. First operand 220 states and 266 transitions. Second operand has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:34,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:34,177 INFO L93 Difference]: Finished difference Result 635 states and 854 transitions. [2022-12-13 11:56:34,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 11:56:34,177 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-12-13 11:56:34,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:34,178 INFO L225 Difference]: With dead ends: 635 [2022-12-13 11:56:34,178 INFO L226 Difference]: Without dead ends: 620 [2022-12-13 11:56:34,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-12-13 11:56:34,178 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 1515 mSDsluCounter, 2817 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 3347 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:34,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 3347 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 11:56:34,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2022-12-13 11:56:34,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 184. [2022-12-13 11:56:34,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 1.2240437158469946) internal successors, (224), 183 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:34,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 224 transitions. [2022-12-13 11:56:34,396 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 224 transitions. Word has length 104 [2022-12-13 11:56:34,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:34,396 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 224 transitions. [2022-12-13 11:56:34,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:34,396 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 224 transitions. [2022-12-13 11:56:34,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-12-13 11:56:34,396 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:34,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:34,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-12-13 11:56:34,397 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:56:34,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:34,397 INFO L85 PathProgramCache]: Analyzing trace with hash 448868843, now seen corresponding path program 1 times [2022-12-13 11:56:34,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:34,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911929972] [2022-12-13 11:56:34,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:34,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:34,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:34,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:34,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911929972] [2022-12-13 11:56:34,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911929972] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:34,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:34,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:56:34,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515331447] [2022-12-13 11:56:34,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:34,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:56:34,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:34,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:56:34,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:56:34,499 INFO L87 Difference]: Start difference. First operand 184 states and 224 transitions. Second operand has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:36,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:36,915 INFO L93 Difference]: Finished difference Result 1072 states and 1508 transitions. [2022-12-13 11:56:36,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 11:56:36,916 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-12-13 11:56:36,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:36,916 INFO L225 Difference]: With dead ends: 1072 [2022-12-13 11:56:36,917 INFO L226 Difference]: Without dead ends: 998 [2022-12-13 11:56:36,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2022-12-13 11:56:36,917 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 1763 mSDsluCounter, 3354 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1763 SdHoareTripleChecker+Valid, 3595 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:36,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1763 Valid, 3595 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:56:36,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2022-12-13 11:56:37,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 256. [2022-12-13 11:56:37,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 255 states have (on average 1.2901960784313726) internal successors, (329), 255 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:37,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 329 transitions. [2022-12-13 11:56:37,330 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 329 transitions. Word has length 135 [2022-12-13 11:56:37,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:37,331 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 329 transitions. [2022-12-13 11:56:37,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:37,331 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 329 transitions. [2022-12-13 11:56:37,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-13 11:56:37,331 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:37,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:37,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-12-13 11:56:37,331 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:56:37,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:37,332 INFO L85 PathProgramCache]: Analyzing trace with hash -41714143, now seen corresponding path program 1 times [2022-12-13 11:56:37,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:37,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203554254] [2022-12-13 11:56:37,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:37,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:37,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:37,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:37,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203554254] [2022-12-13 11:56:37,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203554254] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:37,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:37,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:56:37,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831510045] [2022-12-13 11:56:37,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:37,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:56:37,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:37,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:56:37,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:56:37,440 INFO L87 Difference]: Start difference. First operand 256 states and 329 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:40,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:40,037 INFO L93 Difference]: Finished difference Result 1206 states and 1707 transitions. [2022-12-13 11:56:40,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:56:40,038 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-12-13 11:56:40,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:40,039 INFO L225 Difference]: With dead ends: 1206 [2022-12-13 11:56:40,039 INFO L226 Difference]: Without dead ends: 1060 [2022-12-13 11:56:40,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:56:40,039 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 1486 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1939 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:40,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 1939 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:56:40,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2022-12-13 11:56:40,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 328. [2022-12-13 11:56:40,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 327 states have (on average 1.327217125382263) internal successors, (434), 327 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:40,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 434 transitions. [2022-12-13 11:56:40,664 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 434 transitions. Word has length 137 [2022-12-13 11:56:40,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:40,665 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 434 transitions. [2022-12-13 11:56:40,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:40,665 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 434 transitions. [2022-12-13 11:56:40,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-13 11:56:40,665 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:40,665 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:40,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-12-13 11:56:40,665 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:56:40,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:40,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1023774299, now seen corresponding path program 1 times [2022-12-13 11:56:40,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:40,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70943753] [2022-12-13 11:56:40,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:40,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:40,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:40,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:40,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70943753] [2022-12-13 11:56:40,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70943753] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:40,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:40,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:56:40,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067550226] [2022-12-13 11:56:40,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:40,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:56:40,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:40,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:56:40,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:56:40,773 INFO L87 Difference]: Start difference. First operand 328 states and 434 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:43,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:43,642 INFO L93 Difference]: Finished difference Result 1278 states and 1812 transitions. [2022-12-13 11:56:43,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:56:43,643 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-12-13 11:56:43,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:43,644 INFO L225 Difference]: With dead ends: 1278 [2022-12-13 11:56:43,644 INFO L226 Difference]: Without dead ends: 1132 [2022-12-13 11:56:43,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:56:43,644 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 1486 mSDsluCounter, 1482 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1813 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:43,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 1813 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:56:43,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2022-12-13 11:56:44,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 472. [2022-12-13 11:56:44,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.3673036093418258) internal successors, (644), 471 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:44,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 644 transitions. [2022-12-13 11:56:44,656 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 644 transitions. Word has length 137 [2022-12-13 11:56:44,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:44,656 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 644 transitions. [2022-12-13 11:56:44,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:44,656 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 644 transitions. [2022-12-13 11:56:44,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-13 11:56:44,656 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:44,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:44,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-12-13 11:56:44,657 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:56:44,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:44,657 INFO L85 PathProgramCache]: Analyzing trace with hash 388220693, now seen corresponding path program 1 times [2022-12-13 11:56:44,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:44,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251967286] [2022-12-13 11:56:44,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:44,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:44,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:44,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:44,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251967286] [2022-12-13 11:56:44,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251967286] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:44,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:44,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:56:44,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051408092] [2022-12-13 11:56:44,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:44,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:56:44,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:44,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:56:44,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:56:44,775 INFO L87 Difference]: Start difference. First operand 472 states and 644 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:47,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:47,873 INFO L93 Difference]: Finished difference Result 1350 states and 1917 transitions. [2022-12-13 11:56:47,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:56:47,874 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-12-13 11:56:47,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:47,875 INFO L225 Difference]: With dead ends: 1350 [2022-12-13 11:56:47,875 INFO L226 Difference]: Without dead ends: 1204 [2022-12-13 11:56:47,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:56:47,875 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 1562 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1562 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:47,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1562 Valid, 1721 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:56:47,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2022-12-13 11:56:49,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 544. [2022-12-13 11:56:49,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 543 states have (on average 1.3793738489871086) internal successors, (749), 543 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:49,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 749 transitions. [2022-12-13 11:56:49,100 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 749 transitions. Word has length 137 [2022-12-13 11:56:49,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:49,100 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 749 transitions. [2022-12-13 11:56:49,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:49,100 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 749 transitions. [2022-12-13 11:56:49,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-13 11:56:49,100 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:49,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:49,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-12-13 11:56:49,101 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:56:49,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:49,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1948470775, now seen corresponding path program 1 times [2022-12-13 11:56:49,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:49,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769117853] [2022-12-13 11:56:49,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:49,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:49,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:49,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:49,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769117853] [2022-12-13 11:56:49,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769117853] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:49,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:49,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:56:49,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13744124] [2022-12-13 11:56:49,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:49,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:56:49,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:49,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:56:49,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:56:49,218 INFO L87 Difference]: Start difference. First operand 544 states and 749 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:52,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:52,639 INFO L93 Difference]: Finished difference Result 1422 states and 2022 transitions. [2022-12-13 11:56:52,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:56:52,640 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-12-13 11:56:52,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:52,641 INFO L225 Difference]: With dead ends: 1422 [2022-12-13 11:56:52,641 INFO L226 Difference]: Without dead ends: 1276 [2022-12-13 11:56:52,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:56:52,642 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 1672 mSDsluCounter, 1463 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1672 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:52,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1672 Valid, 1782 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:56:52,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2022-12-13 11:56:54,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 616. [2022-12-13 11:56:54,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 615 states have (on average 1.3886178861788618) internal successors, (854), 615 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:54,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 854 transitions. [2022-12-13 11:56:54,078 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 854 transitions. Word has length 137 [2022-12-13 11:56:54,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:54,078 INFO L495 AbstractCegarLoop]: Abstraction has 616 states and 854 transitions. [2022-12-13 11:56:54,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:54,078 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 854 transitions. [2022-12-13 11:56:54,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-13 11:56:54,079 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:54,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:54,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-12-13 11:56:54,079 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:56:54,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:54,079 INFO L85 PathProgramCache]: Analyzing trace with hash 574551692, now seen corresponding path program 1 times [2022-12-13 11:56:54,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:54,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638320330] [2022-12-13 11:56:54,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:54,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:54,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:54,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:54,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638320330] [2022-12-13 11:56:54,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638320330] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:54,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:54,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:56:54,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63464022] [2022-12-13 11:56:54,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:54,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:56:54,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:54,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:56:54,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:56:54,264 INFO L87 Difference]: Start difference. First operand 616 states and 854 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:56,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:56:56,610 INFO L93 Difference]: Finished difference Result 1412 states and 2012 transitions. [2022-12-13 11:56:56,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:56:56,611 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-12-13 11:56:56,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:56:56,611 INFO L225 Difference]: With dead ends: 1412 [2022-12-13 11:56:56,612 INFO L226 Difference]: Without dead ends: 906 [2022-12-13 11:56:56,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:56:56,612 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 292 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:56:56,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 741 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:56:56,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2022-12-13 11:56:58,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 904. [2022-12-13 11:56:58,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 903 states have (on average 1.4042081949058693) internal successors, (1268), 903 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:58,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1268 transitions. [2022-12-13 11:56:58,832 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1268 transitions. Word has length 137 [2022-12-13 11:56:58,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:56:58,832 INFO L495 AbstractCegarLoop]: Abstraction has 904 states and 1268 transitions. [2022-12-13 11:56:58,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:56:58,833 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1268 transitions. [2022-12-13 11:56:58,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-13 11:56:58,833 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:56:58,833 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:56:58,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-12-13 11:56:58,833 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:56:58,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:56:58,834 INFO L85 PathProgramCache]: Analyzing trace with hash -194741301, now seen corresponding path program 1 times [2022-12-13 11:56:58,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:56:58,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282025469] [2022-12-13 11:56:58,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:56:58,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:56:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:56:58,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:56:58,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:56:58,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282025469] [2022-12-13 11:56:58,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282025469] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:56:58,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:56:58,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:56:58,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521999432] [2022-12-13 11:56:58,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:56:58,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:56:58,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:56:58,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:56:58,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:56:58,877 INFO L87 Difference]: Start difference. First operand 904 states and 1268 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:57:01,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:57:01,172 INFO L93 Difference]: Finished difference Result 1704 states and 2425 transitions. [2022-12-13 11:57:01,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:57:01,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-12-13 11:57:01,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:57:01,174 INFO L225 Difference]: With dead ends: 1704 [2022-12-13 11:57:01,174 INFO L226 Difference]: Without dead ends: 899 [2022-12-13 11:57:01,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:57:01,174 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 0 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:57:01,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 436 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:57:01,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2022-12-13 11:57:03,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 899. [2022-12-13 11:57:03,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 898 states have (on average 1.3942093541202674) internal successors, (1252), 898 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:57:03,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1252 transitions. [2022-12-13 11:57:03,435 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1252 transitions. Word has length 137 [2022-12-13 11:57:03,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:57:03,435 INFO L495 AbstractCegarLoop]: Abstraction has 899 states and 1252 transitions. [2022-12-13 11:57:03,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:57:03,435 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1252 transitions. [2022-12-13 11:57:03,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-13 11:57:03,436 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:57:03,436 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:57:03,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-12-13 11:57:03,436 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:57:03,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:57:03,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1350263875, now seen corresponding path program 1 times [2022-12-13 11:57:03,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:57:03,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966076409] [2022-12-13 11:57:03,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:57:03,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:57:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:57:03,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:57:03,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:57:03,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966076409] [2022-12-13 11:57:03,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966076409] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:57:03,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:57:03,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:57:03,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791655450] [2022-12-13 11:57:03,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:57:03,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:57:03,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:57:03,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:57:03,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:57:03,546 INFO L87 Difference]: Start difference. First operand 899 states and 1252 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:57:07,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:57:07,782 INFO L93 Difference]: Finished difference Result 1771 states and 2501 transitions. [2022-12-13 11:57:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:57:07,783 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-12-13 11:57:07,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:57:07,785 INFO L225 Difference]: With dead ends: 1771 [2022-12-13 11:57:07,785 INFO L226 Difference]: Without dead ends: 1626 [2022-12-13 11:57:07,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:57:07,785 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 1508 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:57:07,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1801 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:57:07,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2022-12-13 11:57:10,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1042. [2022-12-13 11:57:10,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 1041 states have (on average 1.4005763688760806) internal successors, (1458), 1041 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:57:10,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1458 transitions. [2022-12-13 11:57:10,365 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1458 transitions. Word has length 137 [2022-12-13 11:57:10,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:57:10,365 INFO L495 AbstractCegarLoop]: Abstraction has 1042 states and 1458 transitions. [2022-12-13 11:57:10,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:57:10,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1458 transitions. [2022-12-13 11:57:10,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-13 11:57:10,366 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:57:10,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:57:10,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-12-13 11:57:10,366 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:57:10,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:57:10,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1930438735, now seen corresponding path program 1 times [2022-12-13 11:57:10,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:57:10,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112829847] [2022-12-13 11:57:10,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:57:10,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:57:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:57:10,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:57:10,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:57:10,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112829847] [2022-12-13 11:57:10,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112829847] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:57:10,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:57:10,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:57:10,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059212200] [2022-12-13 11:57:10,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:57:10,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:57:10,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:57:10,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:57:10,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:57:10,489 INFO L87 Difference]: Start difference. First operand 1042 states and 1458 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:57:15,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:57:15,288 INFO L93 Difference]: Finished difference Result 1914 states and 2707 transitions. [2022-12-13 11:57:15,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:57:15,289 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-12-13 11:57:15,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:57:15,290 INFO L225 Difference]: With dead ends: 1914 [2022-12-13 11:57:15,290 INFO L226 Difference]: Without dead ends: 1769 [2022-12-13 11:57:15,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:57:15,290 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 1408 mSDsluCounter, 1707 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 2026 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:57:15,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 2026 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:57:15,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2022-12-13 11:57:18,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1185. [2022-12-13 11:57:18,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 1184 states have (on average 1.4054054054054055) internal successors, (1664), 1184 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:57:18,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1664 transitions. [2022-12-13 11:57:18,292 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1664 transitions. Word has length 137 [2022-12-13 11:57:18,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:57:18,292 INFO L495 AbstractCegarLoop]: Abstraction has 1185 states and 1664 transitions. [2022-12-13 11:57:18,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:57:18,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1664 transitions. [2022-12-13 11:57:18,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-12-13 11:57:18,293 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:57:18,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:57:18,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-12-13 11:57:18,293 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:57:18,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:57:18,293 INFO L85 PathProgramCache]: Analyzing trace with hash 572065848, now seen corresponding path program 1 times [2022-12-13 11:57:18,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:57:18,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204961964] [2022-12-13 11:57:18,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:57:18,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:57:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:57:18,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:57:18,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:57:18,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204961964] [2022-12-13 11:57:18,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204961964] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:57:18,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:57:18,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:57:18,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999228238] [2022-12-13 11:57:18,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:57:18,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:57:18,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:57:18,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:57:18,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:57:18,378 INFO L87 Difference]: Start difference. First operand 1185 states and 1664 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:57:24,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:57:24,240 INFO L93 Difference]: Finished difference Result 3275 states and 4653 transitions. [2022-12-13 11:57:24,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:57:24,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2022-12-13 11:57:24,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:57:24,243 INFO L225 Difference]: With dead ends: 3275 [2022-12-13 11:57:24,243 INFO L226 Difference]: Without dead ends: 2200 [2022-12-13 11:57:24,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:57:24,244 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 108 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 482 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 [2022-12-13 11:57:24,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 482 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:57:24,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2200 states. [2022-12-13 11:57:29,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2200 to 2138. [2022-12-13 11:57:29,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2138 states, 2137 states have (on average 1.410856340664483) internal successors, (3015), 2137 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:57:29,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2138 states to 2138 states and 3015 transitions. [2022-12-13 11:57:29,882 INFO L78 Accepts]: Start accepts. Automaton has 2138 states and 3015 transitions. Word has length 138 [2022-12-13 11:57:29,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:57:29,883 INFO L495 AbstractCegarLoop]: Abstraction has 2138 states and 3015 transitions. [2022-12-13 11:57:29,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:57:29,883 INFO L276 IsEmpty]: Start isEmpty. Operand 2138 states and 3015 transitions. [2022-12-13 11:57:29,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-12-13 11:57:29,883 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:57:29,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:57:29,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-12-13 11:57:29,884 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:57:29,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:57:29,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1682502168, now seen corresponding path program 1 times [2022-12-13 11:57:29,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:57:29,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809749617] [2022-12-13 11:57:29,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:57:29,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:57:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:57:29,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:57:29,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:57:29,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809749617] [2022-12-13 11:57:29,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809749617] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:57:29,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:57:29,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:57:29,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860022655] [2022-12-13 11:57:29,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:57:29,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:57:29,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:57:29,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:57:29,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:57:29,973 INFO L87 Difference]: Start difference. First operand 2138 states and 3015 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:57:41,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:57:41,080 INFO L93 Difference]: Finished difference Result 6074 states and 8601 transitions. [2022-12-13 11:57:41,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:57:41,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2022-12-13 11:57:41,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:57:41,084 INFO L225 Difference]: With dead ends: 6074 [2022-12-13 11:57:41,084 INFO L226 Difference]: Without dead ends: 4046 [2022-12-13 11:57:41,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:57:41,085 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 101 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 482 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 [2022-12-13 11:57:41,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 482 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:57:41,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4046 states. [2022-12-13 11:57:51,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4046 to 3924. [2022-12-13 11:57:51,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3924 states, 3923 states have (on average 1.4075962273770073) internal successors, (5522), 3923 states have internal predecessors, (5522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:57:51,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3924 states to 3924 states and 5522 transitions. [2022-12-13 11:57:51,818 INFO L78 Accepts]: Start accepts. Automaton has 3924 states and 5522 transitions. Word has length 139 [2022-12-13 11:57:51,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:57:51,818 INFO L495 AbstractCegarLoop]: Abstraction has 3924 states and 5522 transitions. [2022-12-13 11:57:51,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:57:51,819 INFO L276 IsEmpty]: Start isEmpty. Operand 3924 states and 5522 transitions. [2022-12-13 11:57:51,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-12-13 11:57:51,819 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:57:51,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:57:51,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-12-13 11:57:51,819 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:57:51,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:57:51,820 INFO L85 PathProgramCache]: Analyzing trace with hash 759478895, now seen corresponding path program 1 times [2022-12-13 11:57:51,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:57:51,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759206807] [2022-12-13 11:57:51,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:57:51,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:57:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:57:51,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:57:51,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:57:51,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759206807] [2022-12-13 11:57:51,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759206807] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:57:51,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:57:51,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:57:51,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471205556] [2022-12-13 11:57:51,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:57:51,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:57:51,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:57:51,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:57:51,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:57:51,913 INFO L87 Difference]: Start difference. First operand 3924 states and 5522 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:58:12,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:58:12,977 INFO L93 Difference]: Finished difference Result 11312 states and 15912 transitions. [2022-12-13 11:58:12,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:58:12,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2022-12-13 11:58:12,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:58:12,984 INFO L225 Difference]: With dead ends: 11312 [2022-12-13 11:58:12,984 INFO L226 Difference]: Without dead ends: 7498 [2022-12-13 11:58:12,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:58:12,987 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 94 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 482 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 [2022-12-13 11:58:12,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 482 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:58:12,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7498 states. [2022-12-13 11:58:33,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7498 to 7256. [2022-12-13 11:58:33,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7256 states, 7255 states have (on average 1.3984838042729153) internal successors, (10146), 7255 states have internal predecessors, (10146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:58:33,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7256 states to 7256 states and 10146 transitions. [2022-12-13 11:58:33,272 INFO L78 Accepts]: Start accepts. Automaton has 7256 states and 10146 transitions. Word has length 140 [2022-12-13 11:58:33,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:58:33,272 INFO L495 AbstractCegarLoop]: Abstraction has 7256 states and 10146 transitions. [2022-12-13 11:58:33,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:58:33,272 INFO L276 IsEmpty]: Start isEmpty. Operand 7256 states and 10146 transitions. [2022-12-13 11:58:33,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-12-13 11:58:33,272 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:58:33,272 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:58:33,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-12-13 11:58:33,273 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:58:33,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:58:33,273 INFO L85 PathProgramCache]: Analyzing trace with hash 872733499, now seen corresponding path program 1 times [2022-12-13 11:58:33,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:58:33,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048452333] [2022-12-13 11:58:33,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:58:33,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:58:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:58:33,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:58:33,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:58:33,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048452333] [2022-12-13 11:58:33,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048452333] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:58:33,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:58:33,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:58:33,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870850636] [2022-12-13 11:58:33,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:58:33,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:58:33,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:58:33,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:58:33,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:58:33,388 INFO L87 Difference]: Start difference. First operand 7256 states and 10146 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:59:16,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:59:16,243 INFO L93 Difference]: Finished difference Result 21068 states and 29364 transitions. [2022-12-13 11:59:16,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:59:16,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-12-13 11:59:16,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:59:16,255 INFO L225 Difference]: With dead ends: 21068 [2022-12-13 11:59:16,255 INFO L226 Difference]: Without dead ends: 13922 [2022-12-13 11:59:16,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:59:16,261 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 87 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 482 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 [2022-12-13 11:59:16,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 482 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:59:16,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13922 states. [2022-12-13 11:59:57,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13922 to 13440. [2022-12-13 11:59:57,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13440 states, 13439 states have (on average 1.3850732941439095) internal successors, (18614), 13439 states have internal predecessors, (18614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:59:57,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13440 states to 13440 states and 18614 transitions. [2022-12-13 11:59:57,037 INFO L78 Accepts]: Start accepts. Automaton has 13440 states and 18614 transitions. Word has length 141 [2022-12-13 11:59:57,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:59:57,037 INFO L495 AbstractCegarLoop]: Abstraction has 13440 states and 18614 transitions. [2022-12-13 11:59:57,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:59:57,037 INFO L276 IsEmpty]: Start isEmpty. Operand 13440 states and 18614 transitions. [2022-12-13 11:59:57,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-12-13 11:59:57,038 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:59:57,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:59:57,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-12-13 11:59:57,038 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 11:59:57,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:59:57,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1491720642, now seen corresponding path program 1 times [2022-12-13 11:59:57,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:59:57,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987213398] [2022-12-13 11:59:57,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:59:57,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:59:57,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:59:57,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:59:57,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:59:57,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987213398] [2022-12-13 11:59:57,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987213398] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:59:57,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:59:57,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:59:57,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374828269] [2022-12-13 11:59:57,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:59:57,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:59:57,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:59:57,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:59:57,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:59:57,121 INFO L87 Difference]: Start difference. First operand 13440 states and 18614 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:01:14,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:01:14,023 INFO L93 Difference]: Finished difference Result 39140 states and 53928 transitions. [2022-12-13 12:01:14,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:01:14,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-12-13 12:01:14,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:01:14,049 INFO L225 Difference]: With dead ends: 39140 [2022-12-13 12:01:14,049 INFO L226 Difference]: Without dead ends: 25810 [2022-12-13 12:01:14,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:01:14,060 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 80 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 481 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 [2022-12-13 12:01:14,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 481 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:01:14,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25810 states. [2022-12-13 12:02:28,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25810 to 24848. [2022-12-13 12:02:28,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24848 states, 24847 states have (on average 1.3679719885700488) internal successors, (33990), 24847 states have internal predecessors, (33990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:28,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24848 states to 24848 states and 33990 transitions. [2022-12-13 12:02:28,112 INFO L78 Accepts]: Start accepts. Automaton has 24848 states and 33990 transitions. Word has length 142 [2022-12-13 12:02:28,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:02:28,112 INFO L495 AbstractCegarLoop]: Abstraction has 24848 states and 33990 transitions. [2022-12-13 12:02:28,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:02:28,112 INFO L276 IsEmpty]: Start isEmpty. Operand 24848 states and 33990 transitions. [2022-12-13 12:02:28,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-12-13 12:02:28,113 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:02:28,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:02:28,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-12-13 12:02:28,113 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 12:02:28,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:02:28,113 INFO L85 PathProgramCache]: Analyzing trace with hash 451218934, now seen corresponding path program 1 times [2022-12-13 12:02:28,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:02:28,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466727298] [2022-12-13 12:02:28,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:02:28,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:02:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:02:28,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:02:28,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:02:28,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466727298] [2022-12-13 12:02:28,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466727298] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:02:28,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:02:28,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:02:28,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851077114] [2022-12-13 12:02:28,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:02:28,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:02:28,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:02:28,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:02:28,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:02:28,196 INFO L87 Difference]: Start difference. First operand 24848 states and 33990 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:04:47,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:04:47,618 INFO L93 Difference]: Finished difference Result 72404 states and 98376 transitions. [2022-12-13 12:04:47,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:04:47,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-12-13 12:04:47,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:04:47,681 INFO L225 Difference]: With dead ends: 72404 [2022-12-13 12:04:47,681 INFO L226 Difference]: Without dead ends: 47666 [2022-12-13 12:04:47,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:04:47,701 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 70 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 480 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 [2022-12-13 12:04:47,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 480 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:04:47,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47666 states. [2022-12-13 12:07:01,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47666 to 45744. [2022-12-13 12:07:01,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45744 states, 45743 states have (on average 1.3471350807773868) internal successors, (61622), 45743 states have internal predecessors, (61622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:07:01,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45744 states to 45744 states and 61622 transitions. [2022-12-13 12:07:01,914 INFO L78 Accepts]: Start accepts. Automaton has 45744 states and 61622 transitions. Word has length 143 [2022-12-13 12:07:01,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:07:01,915 INFO L495 AbstractCegarLoop]: Abstraction has 45744 states and 61622 transitions. [2022-12-13 12:07:01,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:07:01,915 INFO L276 IsEmpty]: Start isEmpty. Operand 45744 states and 61622 transitions. [2022-12-13 12:07:01,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-12-13 12:07:01,915 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:07:01,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:07:01,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-12-13 12:07:01,915 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-13 12:07:01,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:07:01,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1160021083, now seen corresponding path program 1 times [2022-12-13 12:07:01,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:07:01,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836517576] [2022-12-13 12:07:01,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:07:01,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:07:01,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:07:02,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:07:02,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:07:02,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836517576] [2022-12-13 12:07:02,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836517576] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:07:02,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:07:02,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:07:02,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705466610] [2022-12-13 12:07:02,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:07:02,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:07:02,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:07:02,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:07:02,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:07:02,110 INFO L87 Difference]: Start difference. First operand 45744 states and 61622 transitions. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)