./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38260827-bb43-43ab-8ab8-1e27cc6ebe45/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38260827-bb43-43ab-8ab8-1e27cc6ebe45/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38260827-bb43-43ab-8ab8-1e27cc6ebe45/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38260827-bb43-43ab-8ab8-1e27cc6ebe45/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38260827-bb43-43ab-8ab8-1e27cc6ebe45/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38260827-bb43-43ab-8ab8-1e27cc6ebe45/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8ff37a6bc6dd9a1cef87b79c0817272bb118995e5e060e5cd0eb428df45ac24f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 15:51:31,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:51:31,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:51:31,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:51:31,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:51:31,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:51:31,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:51:31,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:51:31,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:51:31,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:51:31,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:51:31,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:51:31,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:51:31,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:51:31,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:51:31,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:51:31,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:51:31,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:51:31,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:51:31,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:51:31,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:51:31,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:51:31,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:51:31,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:51:31,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:51:31,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:51:31,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:51:31,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:51:31,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:51:31,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:51:31,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:51:31,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:51:31,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:51:31,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:51:31,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:51:31,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:51:31,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:51:31,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:51:31,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:51:31,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:51:31,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:51:31,532 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38260827-bb43-43ab-8ab8-1e27cc6ebe45/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 15:51:31,577 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:51:31,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:51:31,578 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:51:31,578 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:51:31,579 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:51:31,579 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:51:31,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:51:31,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:51:31,581 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:51:31,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:51:31,582 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:51:31,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:51:31,582 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:51:31,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:51:31,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:51:31,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:51:31,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:51:31,583 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:51:31,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:51:31,584 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:51:31,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:51:31,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:51:31,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:51:31,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:51:31,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:51:31,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:51:31,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:51:31,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:51:31,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:51:31,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:51:31,586 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:51:31,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:51:31,587 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:51:31,587 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:51:31,587 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38260827-bb43-43ab-8ab8-1e27cc6ebe45/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ff37a6bc6dd9a1cef87b79c0817272bb118995e5e060e5cd0eb428df45ac24f [2022-11-25 15:51:31,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:51:31,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:51:31,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:51:31,876 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:51:31,880 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:51:31,881 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38260827-bb43-43ab-8ab8-1e27cc6ebe45/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-25 15:51:34,968 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:51:35,460 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:51:35,461 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-25 15:51:35,488 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38260827-bb43-43ab-8ab8-1e27cc6ebe45/bin/uautomizer-ZsLfNo2U6R/data/42958ac7f/1d24add6704347408e9f1edf9fd33978/FLAG92654da97 [2022-11-25 15:51:35,506 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38260827-bb43-43ab-8ab8-1e27cc6ebe45/bin/uautomizer-ZsLfNo2U6R/data/42958ac7f/1d24add6704347408e9f1edf9fd33978 [2022-11-25 15:51:35,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:51:35,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:51:35,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:51:35,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:51:35,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:51:35,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:51:35" (1/1) ... [2022-11-25 15:51:35,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a850b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:35, skipping insertion in model container [2022-11-25 15:51:35,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:51:35" (1/1) ... [2022-11-25 15:51:35,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:51:35,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:51:36,388 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34668,34681] [2022-11-25 15:51:36,422 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35558,35571] [2022-11-25 15:51:36,482 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37388,37401] [2022-11-25 15:51:36,510 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38278,38291] [2022-11-25 15:51:36,578 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41051,41064] [2022-11-25 15:51:36,601 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41944,41957] [2022-11-25 15:51:36,642 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[43777,43790] [2022-11-25 15:51:36,673 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[45054,45067] [2022-11-25 15:51:36,890 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60707,60720] [2022-11-25 15:51:36,914 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61600,61613] [2022-11-25 15:51:36,951 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[63433,63446] [2022-11-25 15:51:37,037 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[67890,67903] [2022-11-25 15:51:37,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:51:37,211 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:51:37,531 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34668,34681] [2022-11-25 15:51:37,551 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35558,35571] [2022-11-25 15:51:37,594 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37388,37401] [2022-11-25 15:51:37,614 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38278,38291] [2022-11-25 15:51:37,670 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41051,41064] [2022-11-25 15:51:37,692 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41944,41957] [2022-11-25 15:51:37,725 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[43777,43790] [2022-11-25 15:51:37,753 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[45054,45067] [2022-11-25 15:51:37,929 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60707,60720] [2022-11-25 15:51:37,949 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61600,61613] [2022-11-25 15:51:37,981 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[63433,63446] [2022-11-25 15:51:38,054 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_38260827-bb43-43ab-8ab8-1e27cc6ebe45/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[67890,67903] [2022-11-25 15:51:38,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:51:38,268 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:51:38,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:38 WrapperNode [2022-11-25 15:51:38,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:51:38,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:51:38,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:51:38,286 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:51:38,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:38" (1/1) ... [2022-11-25 15:51:38,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:38" (1/1) ... [2022-11-25 15:51:38,457 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 4116 [2022-11-25 15:51:38,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:51:38,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:51:38,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:51:38,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:51:38,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:38" (1/1) ... [2022-11-25 15:51:38,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:38" (1/1) ... [2022-11-25 15:51:38,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:38" (1/1) ... [2022-11-25 15:51:38,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:38" (1/1) ... [2022-11-25 15:51:38,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:38" (1/1) ... [2022-11-25 15:51:38,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:38" (1/1) ... [2022-11-25 15:51:38,561 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:38" (1/1) ... [2022-11-25 15:51:38,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:38" (1/1) ... [2022-11-25 15:51:38,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:51:38,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:51:38,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:51:38,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:51:38,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:38" (1/1) ... [2022-11-25 15:51:38,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:51:38,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38260827-bb43-43ab-8ab8-1e27cc6ebe45/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:51:38,634 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38260827-bb43-43ab-8ab8-1e27cc6ebe45/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:51:38,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38260827-bb43-43ab-8ab8-1e27cc6ebe45/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:51:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:51:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:51:38,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:51:38,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:51:38,955 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:51:38,959 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:51:41,759 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:51:41,790 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:51:41,791 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 15:51:41,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:51:41 BoogieIcfgContainer [2022-11-25 15:51:41,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:51:41,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:51:41,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:51:41,809 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:51:41,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:51:35" (1/3) ... [2022-11-25 15:51:41,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ee1fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:51:41, skipping insertion in model container [2022-11-25 15:51:41,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:51:38" (2/3) ... [2022-11-25 15:51:41,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ee1fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:51:41, skipping insertion in model container [2022-11-25 15:51:41,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:51:41" (3/3) ... [2022-11-25 15:51:41,815 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-25 15:51:41,835 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:51:41,836 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-25 15:51:41,918 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:51:41,925 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;@2e53e483, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:51:41,925 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-25 15:51:41,934 INFO L276 IsEmpty]: Start isEmpty. Operand has 999 states, 986 states have (on average 1.8123732251521298) internal successors, (1787), 998 states have internal predecessors, (1787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:41,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-11-25 15:51:41,961 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:51:41,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:41,962 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-25 15:51:41,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:41,968 INFO L85 PathProgramCache]: Analyzing trace with hash -85310569, now seen corresponding path program 1 times [2022-11-25 15:51:41,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:41,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514364018] [2022-11-25 15:51:41,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:41,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:43,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:43,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:51:43,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514364018] [2022-11-25 15:51:43,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514364018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:51:43,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:51:43,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:51:43,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882199305] [2022-11-25 15:51:43,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:51:43,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:51:43,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:51:43,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:51:43,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:51:43,137 INFO L87 Difference]: Start difference. First operand has 999 states, 986 states have (on average 1.8123732251521298) internal successors, (1787), 998 states have internal predecessors, (1787), 0 states have call successors, (0), 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 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:43,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:51:43,618 INFO L93 Difference]: Finished difference Result 1757 states and 3116 transitions. [2022-11-25 15:51:43,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:51:43,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 308 [2022-11-25 15:51:43,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:51:43,651 INFO L225 Difference]: With dead ends: 1757 [2022-11-25 15:51:43,651 INFO L226 Difference]: Without dead ends: 1465 [2022-11-25 15:51:43,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:51:43,666 INFO L413 NwaCegarLoop]: 1966 mSDtfsCounter, 999 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 3253 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:51:43,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 3253 Invalid, 147 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 15:51:43,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2022-11-25 15:51:43,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1463. [2022-11-25 15:51:43,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1451 states have (on average 1.5506547208821502) internal successors, (2250), 1462 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:43,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 2250 transitions. [2022-11-25 15:51:43,815 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 2250 transitions. Word has length 308 [2022-11-25 15:51:43,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:51:43,817 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 2250 transitions. [2022-11-25 15:51:43,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:43,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 2250 transitions. [2022-11-25 15:51:43,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-11-25 15:51:43,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:51:43,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:43,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:51:43,826 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-25 15:51:43,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:43,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1477444319, now seen corresponding path program 1 times [2022-11-25 15:51:43,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:43,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655761744] [2022-11-25 15:51:43,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:43,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:44,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:44,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:51:44,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655761744] [2022-11-25 15:51:44,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655761744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:51:44,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:51:44,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:51:44,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959689259] [2022-11-25 15:51:44,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:51:44,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:51:44,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:51:44,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:51:44,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:51:44,341 INFO L87 Difference]: Start difference. First operand 1463 states and 2250 transitions. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:44,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:51:44,697 INFO L93 Difference]: Finished difference Result 2860 states and 4447 transitions. [2022-11-25 15:51:44,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:51:44,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 308 [2022-11-25 15:51:44,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:51:44,754 INFO L225 Difference]: With dead ends: 2860 [2022-11-25 15:51:44,754 INFO L226 Difference]: Without dead ends: 2491 [2022-11-25 15:51:44,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:51:44,764 INFO L413 NwaCegarLoop]: 1670 mSDtfsCounter, 889 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 15:51:44,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 2824 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 15:51:44,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2022-11-25 15:51:44,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 2489. [2022-11-25 15:51:44,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2489 states, 2477 states have (on average 1.5538958417440452) internal successors, (3849), 2488 states have internal predecessors, (3849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:44,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 3849 transitions. [2022-11-25 15:51:44,888 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 3849 transitions. Word has length 308 [2022-11-25 15:51:44,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:51:44,890 INFO L495 AbstractCegarLoop]: Abstraction has 2489 states and 3849 transitions. [2022-11-25 15:51:44,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:44,891 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 3849 transitions. [2022-11-25 15:51:44,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-11-25 15:51:44,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:51:44,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:44,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:51:44,902 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-25 15:51:44,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:44,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1477875295, now seen corresponding path program 1 times [2022-11-25 15:51:44,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:44,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068160955] [2022-11-25 15:51:44,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:44,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:46,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:46,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:51:46,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068160955] [2022-11-25 15:51:46,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068160955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:51:46,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:51:46,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:51:46,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797715410] [2022-11-25 15:51:46,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:51:46,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:51:46,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:51:46,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:51:46,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:51:46,203 INFO L87 Difference]: Start difference. First operand 2489 states and 3849 transitions. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:46,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:51:46,688 INFO L93 Difference]: Finished difference Result 7363 states and 11370 transitions. [2022-11-25 15:51:46,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:51:46,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 308 [2022-11-25 15:51:46,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:51:46,706 INFO L225 Difference]: With dead ends: 7363 [2022-11-25 15:51:46,707 INFO L226 Difference]: Without dead ends: 4885 [2022-11-25 15:51:46,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:51:46,714 INFO L413 NwaCegarLoop]: 2501 mSDtfsCounter, 3359 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3359 SdHoareTripleChecker+Valid, 3944 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:51:46,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3359 Valid, 3944 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:51:46,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4885 states. [2022-11-25 15:51:47,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4885 to 4714. [2022-11-25 15:51:47,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4714 states, 4702 states have (on average 1.5480646533390048) internal successors, (7279), 4713 states have internal predecessors, (7279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:47,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4714 states to 4714 states and 7279 transitions. [2022-11-25 15:51:47,086 INFO L78 Accepts]: Start accepts. Automaton has 4714 states and 7279 transitions. Word has length 308 [2022-11-25 15:51:47,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:51:47,087 INFO L495 AbstractCegarLoop]: Abstraction has 4714 states and 7279 transitions. [2022-11-25 15:51:47,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:47,087 INFO L276 IsEmpty]: Start isEmpty. Operand 4714 states and 7279 transitions. [2022-11-25 15:51:47,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-11-25 15:51:47,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:51:47,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:47,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 15:51:47,099 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-25 15:51:47,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:47,100 INFO L85 PathProgramCache]: Analyzing trace with hash 157578207, now seen corresponding path program 1 times [2022-11-25 15:51:47,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:47,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864150299] [2022-11-25 15:51:47,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:47,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:47,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:47,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:51:47,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864150299] [2022-11-25 15:51:47,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864150299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:51:47,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:51:47,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:51:47,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571344783] [2022-11-25 15:51:47,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:51:47,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:51:47,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:51:47,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:51:47,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:51:47,327 INFO L87 Difference]: Start difference. First operand 4714 states and 7279 transitions. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:48,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:51:48,243 INFO L93 Difference]: Finished difference Result 13840 states and 21315 transitions. [2022-11-25 15:51:48,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:51:48,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 310 [2022-11-25 15:51:48,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:51:48,278 INFO L225 Difference]: With dead ends: 13840 [2022-11-25 15:51:48,278 INFO L226 Difference]: Without dead ends: 9251 [2022-11-25 15:51:48,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:51:48,289 INFO L413 NwaCegarLoop]: 2961 mSDtfsCounter, 1390 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 4414 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:51:48,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1390 Valid, 4414 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:51:48,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9251 states. [2022-11-25 15:51:48,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9251 to 9080. [2022-11-25 15:51:49,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9080 states, 9068 states have (on average 1.5403617115130128) internal successors, (13968), 9079 states have internal predecessors, (13968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:49,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9080 states to 9080 states and 13968 transitions. [2022-11-25 15:51:49,045 INFO L78 Accepts]: Start accepts. Automaton has 9080 states and 13968 transitions. Word has length 310 [2022-11-25 15:51:49,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:51:49,045 INFO L495 AbstractCegarLoop]: Abstraction has 9080 states and 13968 transitions. [2022-11-25 15:51:49,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:49,046 INFO L276 IsEmpty]: Start isEmpty. Operand 9080 states and 13968 transitions. [2022-11-25 15:51:49,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-11-25 15:51:49,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:51:49,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:49,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 15:51:49,065 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-25 15:51:49,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:49,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1863589604, now seen corresponding path program 1 times [2022-11-25 15:51:49,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:49,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547523242] [2022-11-25 15:51:49,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:49,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:49,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:49,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:49,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:51:49,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547523242] [2022-11-25 15:51:49,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547523242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:51:49,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:51:49,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:51:49,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422969026] [2022-11-25 15:51:49,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:51:49,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:51:49,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:51:49,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:51:49,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:51:49,230 INFO L87 Difference]: Start difference. First operand 9080 states and 13968 transitions. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:50,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:51:50,654 INFO L93 Difference]: Finished difference Result 27173 states and 41788 transitions. [2022-11-25 15:51:50,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:51:50,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 310 [2022-11-25 15:51:50,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:51:50,730 INFO L225 Difference]: With dead ends: 27173 [2022-11-25 15:51:50,731 INFO L226 Difference]: Without dead ends: 18131 [2022-11-25 15:51:50,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:51:50,744 INFO L413 NwaCegarLoop]: 3020 mSDtfsCounter, 1507 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 4528 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:51:50,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 4528 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:51:50,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18131 states. [2022-11-25 15:51:51,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18131 to 9099. [2022-11-25 15:51:51,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9099 states, 9087 states have (on average 1.5402222955871026) internal successors, (13996), 9098 states have internal predecessors, (13996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:51,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9099 states to 9099 states and 13996 transitions. [2022-11-25 15:51:51,830 INFO L78 Accepts]: Start accepts. Automaton has 9099 states and 13996 transitions. Word has length 310 [2022-11-25 15:51:51,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:51:51,830 INFO L495 AbstractCegarLoop]: Abstraction has 9099 states and 13996 transitions. [2022-11-25 15:51:51,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:51,830 INFO L276 IsEmpty]: Start isEmpty. Operand 9099 states and 13996 transitions. [2022-11-25 15:51:51,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-11-25 15:51:51,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:51:51,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:51,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 15:51:51,849 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-25 15:51:51,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:51,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2037830479, now seen corresponding path program 1 times [2022-11-25 15:51:51,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:51,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185585597] [2022-11-25 15:51:51,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:51,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:52,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:52,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:51:52,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185585597] [2022-11-25 15:51:52,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185585597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:51:52,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:51:52,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:51:52,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298019565] [2022-11-25 15:51:52,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:51:52,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:51:52,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:51:52,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:51:52,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:51:52,013 INFO L87 Difference]: Start difference. First operand 9099 states and 13996 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:53,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:51:53,527 INFO L93 Difference]: Finished difference Result 27192 states and 41809 transitions. [2022-11-25 15:51:53,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:51:53,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 311 [2022-11-25 15:51:53,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:51:53,580 INFO L225 Difference]: With dead ends: 27192 [2022-11-25 15:51:53,580 INFO L226 Difference]: Without dead ends: 18149 [2022-11-25 15:51:53,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:51:53,597 INFO L413 NwaCegarLoop]: 3020 mSDtfsCounter, 1502 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 4528 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:51:53,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 4528 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:51:53,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18149 states. [2022-11-25 15:51:54,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18149 to 9117. [2022-11-25 15:51:54,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9117 states, 9105 states have (on average 1.5394838001098297) internal successors, (14017), 9116 states have internal predecessors, (14017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:54,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9117 states to 9117 states and 14017 transitions. [2022-11-25 15:51:54,883 INFO L78 Accepts]: Start accepts. Automaton has 9117 states and 14017 transitions. Word has length 311 [2022-11-25 15:51:54,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:51:54,884 INFO L495 AbstractCegarLoop]: Abstraction has 9117 states and 14017 transitions. [2022-11-25 15:51:54,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:54,884 INFO L276 IsEmpty]: Start isEmpty. Operand 9117 states and 14017 transitions. [2022-11-25 15:51:54,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-11-25 15:51:54,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:51:54,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:54,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 15:51:54,907 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-25 15:51:54,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:54,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1963640314, now seen corresponding path program 1 times [2022-11-25 15:51:54,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:54,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474429485] [2022-11-25 15:51:54,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:54,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:55,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:55,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:51:55,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474429485] [2022-11-25 15:51:55,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474429485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:51:55,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:51:55,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:51:55,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807791167] [2022-11-25 15:51:55,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:51:55,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:51:55,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:51:55,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:51:55,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:51:55,166 INFO L87 Difference]: Start difference. First operand 9117 states and 14017 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:56,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:51:56,751 INFO L93 Difference]: Finished difference Result 25718 states and 39429 transitions. [2022-11-25 15:51:56,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:51:56,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 312 [2022-11-25 15:51:56,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:51:56,796 INFO L225 Difference]: With dead ends: 25718 [2022-11-25 15:51:56,796 INFO L226 Difference]: Without dead ends: 16842 [2022-11-25 15:51:56,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:51:56,808 INFO L413 NwaCegarLoop]: 2941 mSDtfsCounter, 1385 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 4394 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:51:56,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1385 Valid, 4394 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:51:56,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16842 states. [2022-11-25 15:51:58,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16842 to 16671. [2022-11-25 15:51:58,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16671 states, 16659 states have (on average 1.5287832402905337) internal successors, (25468), 16670 states have internal predecessors, (25468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:58,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16671 states to 16671 states and 25468 transitions. [2022-11-25 15:51:58,155 INFO L78 Accepts]: Start accepts. Automaton has 16671 states and 25468 transitions. Word has length 312 [2022-11-25 15:51:58,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:51:58,156 INFO L495 AbstractCegarLoop]: Abstraction has 16671 states and 25468 transitions. [2022-11-25 15:51:58,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:51:58,156 INFO L276 IsEmpty]: Start isEmpty. Operand 16671 states and 25468 transitions. [2022-11-25 15:51:58,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-11-25 15:51:58,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:51:58,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:58,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 15:51:58,184 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-25 15:51:58,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:58,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1031936087, now seen corresponding path program 1 times [2022-11-25 15:51:58,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:58,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346128778] [2022-11-25 15:51:58,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:58,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:59,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:51:59,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:51:59,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346128778] [2022-11-25 15:51:59,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346128778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:51:59,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:51:59,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 15:51:59,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186310993] [2022-11-25 15:51:59,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:51:59,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:51:59,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:51:59,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:51:59,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:51:59,325 INFO L87 Difference]: Start difference. First operand 16671 states and 25468 transitions. Second operand has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:52:02,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:52:02,597 INFO L93 Difference]: Finished difference Result 49080 states and 74843 transitions. [2022-11-25 15:52:02,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:52:02,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 312 [2022-11-25 15:52:02,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:52:02,662 INFO L225 Difference]: With dead ends: 49080 [2022-11-25 15:52:02,662 INFO L226 Difference]: Without dead ends: 32464 [2022-11-25 15:52:02,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:52:02,682 INFO L413 NwaCegarLoop]: 2428 mSDtfsCounter, 3488 mSDsluCounter, 2870 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3488 SdHoareTripleChecker+Valid, 5298 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:52:02,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3488 Valid, 5298 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:52:02,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32464 states. [2022-11-25 15:52:06,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32464 to 32307. [2022-11-25 15:52:06,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32307 states, 32295 states have (on average 1.5172008050781856) internal successors, (48998), 32306 states have internal predecessors, (48998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:52:06,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32307 states to 32307 states and 48998 transitions. [2022-11-25 15:52:06,135 INFO L78 Accepts]: Start accepts. Automaton has 32307 states and 48998 transitions. Word has length 312 [2022-11-25 15:52:06,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:52:06,136 INFO L495 AbstractCegarLoop]: Abstraction has 32307 states and 48998 transitions. [2022-11-25 15:52:06,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:52:06,136 INFO L276 IsEmpty]: Start isEmpty. Operand 32307 states and 48998 transitions. [2022-11-25 15:52:06,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-11-25 15:52:06,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:52:06,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:52:06,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 15:52:06,188 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-25 15:52:06,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:06,189 INFO L85 PathProgramCache]: Analyzing trace with hash -506893435, now seen corresponding path program 1 times [2022-11-25 15:52:06,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:52:06,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501076610] [2022-11-25 15:52:06,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:06,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:52:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:06,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:52:06,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:52:06,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501076610] [2022-11-25 15:52:06,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501076610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:52:06,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:52:06,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:52:06,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220737688] [2022-11-25 15:52:06,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:52:06,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:52:06,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:52:06,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:52:06,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:52:06,381 INFO L87 Difference]: Start difference. First operand 32307 states and 48998 transitions. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:52:12,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:52:12,076 INFO L93 Difference]: Finished difference Result 95033 states and 143817 transitions. [2022-11-25 15:52:12,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:52:12,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 314 [2022-11-25 15:52:12,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:52:12,205 INFO L225 Difference]: With dead ends: 95033 [2022-11-25 15:52:12,205 INFO L226 Difference]: Without dead ends: 63243 [2022-11-25 15:52:12,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:52:12,247 INFO L413 NwaCegarLoop]: 2946 mSDtfsCounter, 1367 mSDsluCounter, 1445 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 4391 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:52:12,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1367 Valid, 4391 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:52:12,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63243 states. [2022-11-25 15:52:17,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63243 to 63094. [2022-11-25 15:52:17,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63094 states, 63082 states have (on average 1.5066421483148917) internal successors, (95042), 63093 states have internal predecessors, (95042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:52:17,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63094 states to 63094 states and 95042 transitions. [2022-11-25 15:52:17,769 INFO L78 Accepts]: Start accepts. Automaton has 63094 states and 95042 transitions. Word has length 314 [2022-11-25 15:52:17,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:52:17,769 INFO L495 AbstractCegarLoop]: Abstraction has 63094 states and 95042 transitions. [2022-11-25 15:52:17,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:52:17,770 INFO L276 IsEmpty]: Start isEmpty. Operand 63094 states and 95042 transitions. [2022-11-25 15:52:17,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-11-25 15:52:17,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:52:17,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:52:17,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 15:52:17,853 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-11-25 15:52:17,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:17,854 INFO L85 PathProgramCache]: Analyzing trace with hash -574901982, now seen corresponding path program 1 times [2022-11-25 15:52:17,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:52:17,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427059784] [2022-11-25 15:52:17,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:17,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:52:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:18,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:52:18,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:52:18,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427059784] [2022-11-25 15:52:18,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427059784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:52:18,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:52:18,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 15:52:18,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337748317] [2022-11-25 15:52:18,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:52:18,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:52:18,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:52:18,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:52:18,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:52:18,609 INFO L87 Difference]: Start difference. First operand 63094 states and 95042 transitions. Second operand has 5 states, 5 states have (on average 62.8) internal successors, (314), 5 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)