./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/bin/uautomizer-DrprNOufMa --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 08e27279d8b0f092d8b126b1fa68f6a49bc0b5cda6842121ef1790310988da5f --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:55:38,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:55:38,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:55:38,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:55:38,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:55:38,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:55:38,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:55:38,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:55:38,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:55:38,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:55:38,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:55:38,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:55:38,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:55:38,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:55:38,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:55:38,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:55:38,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:55:38,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:55:38,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:55:38,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:55:38,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:55:38,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:55:38,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:55:38,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:55:38,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:55:38,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:55:38,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:55:38,674 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:55:38,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:55:38,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:55:38,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:55:38,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:55:38,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:55:38,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:55:38,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:55:38,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:55:38,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:55:38,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:55:38,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:55:38,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:55:38,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:55:38,681 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 18:55:38,697 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:55:38,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:55:38,698 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:55:38,698 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:55:38,698 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:55:38,698 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:55:38,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:55:38,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:55:38,699 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:55:38,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:55:38,699 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 18:55:38,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:55:38,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 18:55:38,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:55:38,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 18:55:38,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:55:38,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 18:55:38,700 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 18:55:38,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:55:38,700 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:55:38,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 18:55:38,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:55:38,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:55:38,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:55:38,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:55:38,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:55:38,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:55:38,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 18:55:38,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:55:38,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:55:38,702 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 18:55:38,702 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 18:55:38,702 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 18:55:38,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:55:38,702 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08e27279d8b0f092d8b126b1fa68f6a49bc0b5cda6842121ef1790310988da5f [2021-12-06 18:55:38,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:55:38,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:55:38,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:55:38,901 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:55:38,902 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:55:38,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2021-12-06 18:55:38,943 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/bin/uautomizer-DrprNOufMa/data/e2c821c10/26d01858933c4233a66352bbffabb964/FLAGcc20a30e6 [2021-12-06 18:55:39,492 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:55:39,492 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2021-12-06 18:55:39,534 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/bin/uautomizer-DrprNOufMa/data/e2c821c10/26d01858933c4233a66352bbffabb964/FLAGcc20a30e6 [2021-12-06 18:55:39,997 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/bin/uautomizer-DrprNOufMa/data/e2c821c10/26d01858933c4233a66352bbffabb964 [2021-12-06 18:55:40,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:55:40,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:55:40,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:55:40,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:55:40,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:55:40,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:55:40" (1/1) ... [2021-12-06 18:55:40,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40fb9adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:40, skipping insertion in model container [2021-12-06 18:55:40,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:55:40" (1/1) ... [2021-12-06 18:55:40,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:55:40,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:55:40,397 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14183,14196] [2021-12-06 18:55:40,418 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18907,18920] [2021-12-06 18:55:40,426 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20199,20212] [2021-12-06 18:55:40,431 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20957,20970] [2021-12-06 18:55:40,439 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22620,22633] [2021-12-06 18:55:40,444 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23378,23391] [2021-12-06 18:55:40,450 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24507,24520] [2021-12-06 18:55:40,462 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27132,27145] [2021-12-06 18:55:40,467 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27893,27906] [2021-12-06 18:55:40,473 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29025,29038] [2021-12-06 18:55:40,483 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31116,31129] [2021-12-06 18:55:40,500 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35211,35224] [2021-12-06 18:55:40,505 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35972,35985] [2021-12-06 18:55:40,511 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37065,37078] [2021-12-06 18:55:40,521 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39117,39130] [2021-12-06 18:55:40,542 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42849,42862] [2021-12-06 18:55:40,575 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50027,50040] [2021-12-06 18:55:40,580 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50788,50801] [2021-12-06 18:55:40,585 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51920,51933] [2021-12-06 18:55:40,594 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[54011,54024] [2021-12-06 18:55:40,611 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57572,57585] [2021-12-06 18:55:40,636 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63570,63583] [2021-12-06 18:55:40,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:55:40,928 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:55:40,991 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14183,14196] [2021-12-06 18:55:41,001 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18907,18920] [2021-12-06 18:55:41,006 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20199,20212] [2021-12-06 18:55:41,009 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20957,20970] [2021-12-06 18:55:41,021 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22620,22633] [2021-12-06 18:55:41,024 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23378,23391] [2021-12-06 18:55:41,028 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24507,24520] [2021-12-06 18:55:41,036 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27132,27145] [2021-12-06 18:55:41,039 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27893,27906] [2021-12-06 18:55:41,042 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29025,29038] [2021-12-06 18:55:41,048 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31116,31129] [2021-12-06 18:55:41,059 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35211,35224] [2021-12-06 18:55:41,062 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35972,35985] [2021-12-06 18:55:41,066 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37065,37078] [2021-12-06 18:55:41,072 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39117,39130] [2021-12-06 18:55:41,083 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42849,42862] [2021-12-06 18:55:41,102 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50027,50040] [2021-12-06 18:55:41,105 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50788,50801] [2021-12-06 18:55:41,109 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51920,51933] [2021-12-06 18:55:41,115 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[54011,54024] [2021-12-06 18:55:41,125 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57572,57585] [2021-12-06 18:55:41,140 WARN L230 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_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63570,63583] [2021-12-06 18:55:41,332 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:55:41,348 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:55:41,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:41 WrapperNode [2021-12-06 18:55:41,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:55:41,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:55:41,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:55:41,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:55:41,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:41" (1/1) ... [2021-12-06 18:55:41,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:41" (1/1) ... [2021-12-06 18:55:41,469 INFO L137 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6593 [2021-12-06 18:55:41,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:55:41,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:55:41,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:55:41,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:55:41,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:41" (1/1) ... [2021-12-06 18:55:41,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:41" (1/1) ... [2021-12-06 18:55:41,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:41" (1/1) ... [2021-12-06 18:55:41,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:41" (1/1) ... [2021-12-06 18:55:41,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:41" (1/1) ... [2021-12-06 18:55:41,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:41" (1/1) ... [2021-12-06 18:55:41,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:41" (1/1) ... [2021-12-06 18:55:41,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:55:41,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:55:41,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:55:41,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:55:41,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:41" (1/1) ... [2021-12-06 18:55:41,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:55:41,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:55:41,625 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:55:41,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec0270c8-f037-4ea3-8fd4-7ad880d54ae6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:55:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:55:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 18:55:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:55:41,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:55:41,843 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:55:41,844 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:55:43,544 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:55:43,562 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:55:43,562 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 18:55:43,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:55:43 BoogieIcfgContainer [2021-12-06 18:55:43,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:55:43,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:55:43,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:55:43,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:55:43,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:55:40" (1/3) ... [2021-12-06 18:55:43,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10c30c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:55:43, skipping insertion in model container [2021-12-06 18:55:43,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:41" (2/3) ... [2021-12-06 18:55:43,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10c30c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:55:43, skipping insertion in model container [2021-12-06 18:55:43,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:55:43" (3/3) ... [2021-12-06 18:55:43,570 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2021-12-06 18:55:43,574 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:55:43,574 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2021-12-06 18:55:43,615 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:55:43,619 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 18:55:43,619 INFO L340 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2021-12-06 18:55:43,649 INFO L276 IsEmpty]: Start isEmpty. Operand has 1131 states, 1108 states have (on average 1.855595667870036) internal successors, (2056), 1130 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:43,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-06 18:55:43,668 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:55:43,668 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:55:43,669 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:55:43,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:43,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1995797141, now seen corresponding path program 1 times [2021-12-06 18:55:43,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:43,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105028211] [2021-12-06 18:55:43,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:43,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:44,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:44,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:44,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105028211] [2021-12-06 18:55:44,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105028211] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:44,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:44,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:55:44,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137886475] [2021-12-06 18:55:44,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:44,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:55:44,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:44,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:55:44,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:55:44,100 INFO L87 Difference]: Start difference. First operand has 1131 states, 1108 states have (on average 1.855595667870036) internal successors, (2056), 1130 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:44,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:55:44,854 INFO L93 Difference]: Finished difference Result 2063 states and 3582 transitions. [2021-12-06 18:55:44,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:55:44,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-12-06 18:55:44,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:55:44,876 INFO L225 Difference]: With dead ends: 2063 [2021-12-06 18:55:44,877 INFO L226 Difference]: Without dead ends: 1223 [2021-12-06 18:55:44,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:55:44,886 INFO L933 BasicCegarLoop]: 1034 mSDtfsCounter, 5615 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5615 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:55:44,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5615 Valid, 1396 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 18:55:44,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2021-12-06 18:55:44,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1143. [2021-12-06 18:55:44,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 1121 states have (on average 1.3648528099910795) internal successors, (1530), 1142 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:44,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1530 transitions. [2021-12-06 18:55:44,978 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1530 transitions. Word has length 86 [2021-12-06 18:55:44,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:55:44,978 INFO L470 AbstractCegarLoop]: Abstraction has 1143 states and 1530 transitions. [2021-12-06 18:55:44,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:44,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1530 transitions. [2021-12-06 18:55:44,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-06 18:55:44,982 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:55:44,982 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:55:44,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 18:55:44,983 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:55:44,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:44,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1029751, now seen corresponding path program 1 times [2021-12-06 18:55:44,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:44,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767743439] [2021-12-06 18:55:44,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:44,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:45,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:45,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:45,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767743439] [2021-12-06 18:55:45,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767743439] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:45,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:45,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:55:45,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244227944] [2021-12-06 18:55:45,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:45,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:55:45,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:45,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:55:45,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:55:45,106 INFO L87 Difference]: Start difference. First operand 1143 states and 1530 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:45,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:55:45,520 INFO L93 Difference]: Finished difference Result 1986 states and 2729 transitions. [2021-12-06 18:55:45,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:55:45,521 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-12-06 18:55:45,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:55:45,526 INFO L225 Difference]: With dead ends: 1986 [2021-12-06 18:55:45,526 INFO L226 Difference]: Without dead ends: 1039 [2021-12-06 18:55:45,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:55:45,528 INFO L933 BasicCegarLoop]: 533 mSDtfsCounter, 2867 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2867 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:55:45,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2867 Valid, 569 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 18:55:45,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2021-12-06 18:55:45,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1039. [2021-12-06 18:55:45,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 1017 states have (on average 1.384464110127827) internal successors, (1408), 1038 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:45,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1408 transitions. [2021-12-06 18:55:45,566 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1408 transitions. Word has length 87 [2021-12-06 18:55:45,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:55:45,567 INFO L470 AbstractCegarLoop]: Abstraction has 1039 states and 1408 transitions. [2021-12-06 18:55:45,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:45,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1408 transitions. [2021-12-06 18:55:45,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-12-06 18:55:45,570 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:55:45,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:55:45,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 18:55:45,570 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:55:45,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:45,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1805729392, now seen corresponding path program 1 times [2021-12-06 18:55:45,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:45,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302170370] [2021-12-06 18:55:45,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:45,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:45,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:45,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:45,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302170370] [2021-12-06 18:55:45,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302170370] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:45,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:45,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:55:45,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911893580] [2021-12-06 18:55:45,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:45,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:55:45,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:45,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:55:45,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:55:45,662 INFO L87 Difference]: Start difference. First operand 1039 states and 1408 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:46,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:55:46,014 INFO L93 Difference]: Finished difference Result 1882 states and 2605 transitions. [2021-12-06 18:55:46,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:55:46,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-12-06 18:55:46,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:55:46,019 INFO L225 Difference]: With dead ends: 1882 [2021-12-06 18:55:46,019 INFO L226 Difference]: Without dead ends: 975 [2021-12-06 18:55:46,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:55:46,022 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 2682 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2682 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:55:46,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2682 Valid, 537 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 18:55:46,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2021-12-06 18:55:46,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 975. [2021-12-06 18:55:46,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 953 states have (on average 1.3997901364113325) internal successors, (1334), 974 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:46,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1334 transitions. [2021-12-06 18:55:46,058 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1334 transitions. Word has length 88 [2021-12-06 18:55:46,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:55:46,059 INFO L470 AbstractCegarLoop]: Abstraction has 975 states and 1334 transitions. [2021-12-06 18:55:46,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:46,059 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1334 transitions. [2021-12-06 18:55:46,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-06 18:55:46,062 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:55:46,062 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:55:46,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 18:55:46,063 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:55:46,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:46,069 INFO L85 PathProgramCache]: Analyzing trace with hash 19097864, now seen corresponding path program 1 times [2021-12-06 18:55:46,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:46,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326197651] [2021-12-06 18:55:46,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:46,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:46,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:46,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:46,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326197651] [2021-12-06 18:55:46,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326197651] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:46,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:46,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:55:46,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014587110] [2021-12-06 18:55:46,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:46,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:55:46,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:46,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:55:46,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:55:46,155 INFO L87 Difference]: Start difference. First operand 975 states and 1334 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:46,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:55:46,492 INFO L93 Difference]: Finished difference Result 1818 states and 2529 transitions. [2021-12-06 18:55:46,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:55:46,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-12-06 18:55:46,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:55:46,498 INFO L225 Difference]: With dead ends: 1818 [2021-12-06 18:55:46,498 INFO L226 Difference]: Without dead ends: 934 [2021-12-06 18:55:46,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:55:46,501 INFO L933 BasicCegarLoop]: 500 mSDtfsCounter, 2582 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2582 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:55:46,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2582 Valid, 512 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 18:55:46,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2021-12-06 18:55:46,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 934. [2021-12-06 18:55:46,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 912 states have (on average 1.4111842105263157) internal successors, (1287), 933 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:46,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1287 transitions. [2021-12-06 18:55:46,540 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1287 transitions. Word has length 89 [2021-12-06 18:55:46,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:55:46,540 INFO L470 AbstractCegarLoop]: Abstraction has 934 states and 1287 transitions. [2021-12-06 18:55:46,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:46,540 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1287 transitions. [2021-12-06 18:55:46,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-06 18:55:46,542 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:55:46,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:55:46,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 18:55:46,542 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:55:46,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:46,543 INFO L85 PathProgramCache]: Analyzing trace with hash 817016169, now seen corresponding path program 1 times [2021-12-06 18:55:46,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:46,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391353846] [2021-12-06 18:55:46,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:46,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:46,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:46,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:46,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:46,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391353846] [2021-12-06 18:55:46,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391353846] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:46,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:46,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:55:46,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637839354] [2021-12-06 18:55:46,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:46,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:55:46,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:46,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:55:46,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:55:46,619 INFO L87 Difference]: Start difference. First operand 934 states and 1287 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:46,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:55:46,931 INFO L93 Difference]: Finished difference Result 1777 states and 2480 transitions. [2021-12-06 18:55:46,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:55:46,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-12-06 18:55:46,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:55:46,935 INFO L225 Difference]: With dead ends: 1777 [2021-12-06 18:55:46,935 INFO L226 Difference]: Without dead ends: 915 [2021-12-06 18:55:46,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:55:46,938 INFO L933 BasicCegarLoop]: 481 mSDtfsCounter, 2499 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2499 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:55:46,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2499 Valid, 501 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 18:55:46,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2021-12-06 18:55:46,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 915. [2021-12-06 18:55:46,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 893 states have (on average 1.4154535274356104) internal successors, (1264), 914 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:46,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1264 transitions. [2021-12-06 18:55:46,969 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1264 transitions. Word has length 90 [2021-12-06 18:55:46,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:55:46,969 INFO L470 AbstractCegarLoop]: Abstraction has 915 states and 1264 transitions. [2021-12-06 18:55:46,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:46,970 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1264 transitions. [2021-12-06 18:55:46,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-06 18:55:46,971 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:55:46,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:55:46,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 18:55:46,972 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:55:46,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:46,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1321361543, now seen corresponding path program 1 times [2021-12-06 18:55:46,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:46,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70934866] [2021-12-06 18:55:46,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:46,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:46,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:47,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:47,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:47,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70934866] [2021-12-06 18:55:47,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70934866] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:47,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:47,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:55:47,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453419596] [2021-12-06 18:55:47,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:47,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:55:47,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:47,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:55:47,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:55:47,039 INFO L87 Difference]: Start difference. First operand 915 states and 1264 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:47,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:55:47,407 INFO L93 Difference]: Finished difference Result 1758 states and 2455 transitions. [2021-12-06 18:55:47,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:55:47,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-12-06 18:55:47,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:55:47,413 INFO L225 Difference]: With dead ends: 1758 [2021-12-06 18:55:47,413 INFO L226 Difference]: Without dead ends: 910 [2021-12-06 18:55:47,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:55:47,415 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 2361 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:55:47,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2361 Valid, 426 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 18:55:47,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2021-12-06 18:55:47,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 910. [2021-12-06 18:55:47,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4144144144144144) internal successors, (1256), 909 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:47,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1256 transitions. [2021-12-06 18:55:47,472 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1256 transitions. Word has length 91 [2021-12-06 18:55:47,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:55:47,473 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1256 transitions. [2021-12-06 18:55:47,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:47,473 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1256 transitions. [2021-12-06 18:55:47,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-06 18:55:47,475 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:55:47,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:55:47,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 18:55:47,476 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:55:47,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:47,476 INFO L85 PathProgramCache]: Analyzing trace with hash 471449544, now seen corresponding path program 1 times [2021-12-06 18:55:47,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:47,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085455258] [2021-12-06 18:55:47,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:47,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:47,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:47,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:47,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085455258] [2021-12-06 18:55:47,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085455258] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:47,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:47,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:55:47,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948131234] [2021-12-06 18:55:47,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:47,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:55:47,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:47,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:55:47,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:55:47,607 INFO L87 Difference]: Start difference. First operand 910 states and 1256 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:48,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:55:48,511 INFO L93 Difference]: Finished difference Result 1936 states and 2726 transitions. [2021-12-06 18:55:48,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:55:48,512 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-12-06 18:55:48,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:55:48,518 INFO L225 Difference]: With dead ends: 1936 [2021-12-06 18:55:48,519 INFO L226 Difference]: Without dead ends: 1738 [2021-12-06 18:55:48,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:55:48,520 INFO L933 BasicCegarLoop]: 527 mSDtfsCounter, 3913 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3913 SdHoareTripleChecker+Valid, 2241 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:55:48,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3913 Valid, 2241 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:55:48,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2021-12-06 18:55:48,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 910. [2021-12-06 18:55:48,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4132882882882882) internal successors, (1255), 909 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:48,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1255 transitions. [2021-12-06 18:55:48,559 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1255 transitions. Word has length 92 [2021-12-06 18:55:48,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:55:48,560 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1255 transitions. [2021-12-06 18:55:48,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:48,560 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1255 transitions. [2021-12-06 18:55:48,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-06 18:55:48,562 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:55:48,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:55:48,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 18:55:48,562 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:55:48,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:48,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1530881816, now seen corresponding path program 1 times [2021-12-06 18:55:48,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:48,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019566103] [2021-12-06 18:55:48,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:48,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:48,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:48,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:48,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019566103] [2021-12-06 18:55:48,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019566103] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:48,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:48,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 18:55:48,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668124361] [2021-12-06 18:55:48,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:48,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:55:48,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:48,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:55:48,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:55:48,694 INFO L87 Difference]: Start difference. First operand 910 states and 1255 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:49,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:55:49,757 INFO L93 Difference]: Finished difference Result 2093 states and 2923 transitions. [2021-12-06 18:55:49,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 18:55:49,757 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-12-06 18:55:49,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:55:49,772 INFO L225 Difference]: With dead ends: 2093 [2021-12-06 18:55:49,772 INFO L226 Difference]: Without dead ends: 1881 [2021-12-06 18:55:49,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2021-12-06 18:55:49,773 INFO L933 BasicCegarLoop]: 545 mSDtfsCounter, 3122 mSDsluCounter, 2702 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3122 SdHoareTripleChecker+Valid, 3247 SdHoareTripleChecker+Invalid, 2563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:55:49,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3122 Valid, 3247 Invalid, 2563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 18:55:49,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1881 states. [2021-12-06 18:55:49,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1881 to 913. [2021-12-06 18:55:49,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.4118967452300786) internal successors, (1258), 912 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:49,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1258 transitions. [2021-12-06 18:55:49,827 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1258 transitions. Word has length 92 [2021-12-06 18:55:49,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:55:49,827 INFO L470 AbstractCegarLoop]: Abstraction has 913 states and 1258 transitions. [2021-12-06 18:55:49,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:49,827 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1258 transitions. [2021-12-06 18:55:49,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-06 18:55:49,829 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:55:49,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:55:49,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 18:55:49,829 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:55:49,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:49,830 INFO L85 PathProgramCache]: Analyzing trace with hash 348627122, now seen corresponding path program 1 times [2021-12-06 18:55:49,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:49,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661390104] [2021-12-06 18:55:49,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:49,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:49,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:49,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:49,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661390104] [2021-12-06 18:55:49,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661390104] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:49,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:49,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:55:49,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087082871] [2021-12-06 18:55:49,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:49,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:55:49,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:49,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:55:49,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:55:49,943 INFO L87 Difference]: Start difference. First operand 913 states and 1258 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:50,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:55:50,817 INFO L93 Difference]: Finished difference Result 1755 states and 2441 transitions. [2021-12-06 18:55:50,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:55:50,817 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-12-06 18:55:50,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:55:50,823 INFO L225 Difference]: With dead ends: 1755 [2021-12-06 18:55:50,823 INFO L226 Difference]: Without dead ends: 1488 [2021-12-06 18:55:50,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:55:50,824 INFO L933 BasicCegarLoop]: 528 mSDtfsCounter, 4470 mSDsluCounter, 2282 mSDsCounter, 0 mSdLazyCounter, 2228 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4470 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 2259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:55:50,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4470 Valid, 2810 Invalid, 2259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2228 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:55:50,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2021-12-06 18:55:50,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 910. [2021-12-06 18:55:50,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.412162162162162) internal successors, (1254), 909 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:50,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1254 transitions. [2021-12-06 18:55:50,870 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1254 transitions. Word has length 92 [2021-12-06 18:55:50,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:55:50,870 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1254 transitions. [2021-12-06 18:55:50,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:50,871 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1254 transitions. [2021-12-06 18:55:50,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-06 18:55:50,872 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:55:50,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:55:50,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 18:55:50,872 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:55:50,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:50,873 INFO L85 PathProgramCache]: Analyzing trace with hash 889427447, now seen corresponding path program 1 times [2021-12-06 18:55:50,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:50,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584131795] [2021-12-06 18:55:50,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:50,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:50,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:50,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:50,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584131795] [2021-12-06 18:55:50,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584131795] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:50,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:50,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:55:50,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519366542] [2021-12-06 18:55:50,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:50,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 18:55:50,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:50,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 18:55:50,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:55:50,961 INFO L87 Difference]: Start difference. First operand 910 states and 1254 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:51,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:55:51,517 INFO L93 Difference]: Finished difference Result 1659 states and 2225 transitions. [2021-12-06 18:55:51,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:55:51,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-12-06 18:55:51,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:55:51,522 INFO L225 Difference]: With dead ends: 1659 [2021-12-06 18:55:51,522 INFO L226 Difference]: Without dead ends: 1239 [2021-12-06 18:55:51,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-12-06 18:55:51,523 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 3810 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3810 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 18:55:51,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3810 Valid, 1045 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 18:55:51,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2021-12-06 18:55:51,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 910. [2021-12-06 18:55:51,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4110360360360361) internal successors, (1253), 909 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:51,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1253 transitions. [2021-12-06 18:55:51,572 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1253 transitions. Word has length 92 [2021-12-06 18:55:51,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:55:51,573 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1253 transitions. [2021-12-06 18:55:51,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:51,573 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1253 transitions. [2021-12-06 18:55:51,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-06 18:55:51,574 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:55:51,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:55:51,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 18:55:51,575 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:55:51,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:51,575 INFO L85 PathProgramCache]: Analyzing trace with hash -709696546, now seen corresponding path program 1 times [2021-12-06 18:55:51,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:51,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127654658] [2021-12-06 18:55:51,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:51,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:51,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:51,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:51,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127654658] [2021-12-06 18:55:51,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127654658] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:51,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:51,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:55:51,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935846819] [2021-12-06 18:55:51,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:51,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:55:51,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:51,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:55:51,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:55:51,670 INFO L87 Difference]: Start difference. First operand 910 states and 1253 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:52,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:55:52,332 INFO L93 Difference]: Finished difference Result 1542 states and 2156 transitions. [2021-12-06 18:55:52,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 18:55:52,332 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-06 18:55:52,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:55:52,338 INFO L225 Difference]: With dead ends: 1542 [2021-12-06 18:55:52,338 INFO L226 Difference]: Without dead ends: 1140 [2021-12-06 18:55:52,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2021-12-06 18:55:52,340 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 3953 mSDsluCounter, 1590 mSDsCounter, 0 mSdLazyCounter, 1694 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3953 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 1729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:55:52,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3953 Valid, 2134 Invalid, 1729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1694 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 18:55:52,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2021-12-06 18:55:52,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 910. [2021-12-06 18:55:52,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4087837837837838) internal successors, (1251), 909 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:52,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1251 transitions. [2021-12-06 18:55:52,391 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1251 transitions. Word has length 94 [2021-12-06 18:55:52,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:55:52,391 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1251 transitions. [2021-12-06 18:55:52,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:52,391 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1251 transitions. [2021-12-06 18:55:52,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-06 18:55:52,393 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:55:52,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:55:52,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 18:55:52,393 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:55:52,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:52,394 INFO L85 PathProgramCache]: Analyzing trace with hash -904842275, now seen corresponding path program 1 times [2021-12-06 18:55:52,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:52,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565452146] [2021-12-06 18:55:52,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:52,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:52,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:52,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:52,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565452146] [2021-12-06 18:55:52,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565452146] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:52,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:52,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:55:52,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110406323] [2021-12-06 18:55:52,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:52,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:55:52,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:52,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:55:52,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:55:52,490 INFO L87 Difference]: Start difference. First operand 910 states and 1251 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:53,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:55:53,396 INFO L93 Difference]: Finished difference Result 1902 states and 2665 transitions. [2021-12-06 18:55:53,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:55:53,396 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-06 18:55:53,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:55:53,402 INFO L225 Difference]: With dead ends: 1902 [2021-12-06 18:55:53,402 INFO L226 Difference]: Without dead ends: 1710 [2021-12-06 18:55:53,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 18:55:53,403 INFO L933 BasicCegarLoop]: 575 mSDtfsCounter, 4795 mSDsluCounter, 1864 mSDsCounter, 0 mSdLazyCounter, 1950 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4795 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 2025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:55:53,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4795 Valid, 2439 Invalid, 2025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1950 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:55:53,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2021-12-06 18:55:53,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 910. [2021-12-06 18:55:53,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4065315315315314) internal successors, (1249), 909 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:53,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1249 transitions. [2021-12-06 18:55:53,465 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1249 transitions. Word has length 94 [2021-12-06 18:55:53,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:55:53,465 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1249 transitions. [2021-12-06 18:55:53,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:53,465 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1249 transitions. [2021-12-06 18:55:53,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-06 18:55:53,466 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:55:53,467 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:55:53,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 18:55:53,467 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:55:53,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:53,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1510616083, now seen corresponding path program 1 times [2021-12-06 18:55:53,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:53,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744792012] [2021-12-06 18:55:53,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:53,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:53,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:53,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:53,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744792012] [2021-12-06 18:55:53,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744792012] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:53,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:53,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:55:53,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811384624] [2021-12-06 18:55:53,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:53,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:55:53,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:53,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:55:53,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:55:53,548 INFO L87 Difference]: Start difference. First operand 910 states and 1249 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:54,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:55:54,425 INFO L93 Difference]: Finished difference Result 1984 states and 2782 transitions. [2021-12-06 18:55:54,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:55:54,426 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-06 18:55:54,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:55:54,432 INFO L225 Difference]: With dead ends: 1984 [2021-12-06 18:55:54,432 INFO L226 Difference]: Without dead ends: 1738 [2021-12-06 18:55:54,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:55:54,433 INFO L933 BasicCegarLoop]: 796 mSDtfsCounter, 2976 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 2546 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2976 SdHoareTripleChecker+Valid, 3288 SdHoareTripleChecker+Invalid, 2575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:55:54,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2976 Valid, 3288 Invalid, 2575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2546 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:55:54,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2021-12-06 18:55:54,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 910. [2021-12-06 18:55:54,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4042792792792793) internal successors, (1247), 909 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:54,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1247 transitions. [2021-12-06 18:55:54,490 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1247 transitions. Word has length 94 [2021-12-06 18:55:54,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:55:54,490 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1247 transitions. [2021-12-06 18:55:54,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:54,490 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1247 transitions. [2021-12-06 18:55:54,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-06 18:55:54,491 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:55:54,491 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:55:54,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 18:55:54,491 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:55:54,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:54,492 INFO L85 PathProgramCache]: Analyzing trace with hash -10217144, now seen corresponding path program 1 times [2021-12-06 18:55:54,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:54,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797421400] [2021-12-06 18:55:54,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:54,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:54,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:54,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:54,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:54,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797421400] [2021-12-06 18:55:54,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797421400] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:54,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:54,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:55:54,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050700051] [2021-12-06 18:55:54,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:54,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:55:54,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:54,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:55:54,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:55:54,570 INFO L87 Difference]: Start difference. First operand 910 states and 1247 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:55,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:55:55,477 INFO L93 Difference]: Finished difference Result 1950 states and 2731 transitions. [2021-12-06 18:55:55,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:55:55,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-06 18:55:55,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:55:55,484 INFO L225 Difference]: With dead ends: 1950 [2021-12-06 18:55:55,484 INFO L226 Difference]: Without dead ends: 1738 [2021-12-06 18:55:55,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:55:55,485 INFO L933 BasicCegarLoop]: 809 mSDtfsCounter, 4325 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 2397 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4325 SdHoareTripleChecker+Valid, 3115 SdHoareTripleChecker+Invalid, 2438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:55:55,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4325 Valid, 3115 Invalid, 2438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2397 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:55:55,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2021-12-06 18:55:55,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 910. [2021-12-06 18:55:55,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4031531531531531) internal successors, (1246), 909 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:55,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1246 transitions. [2021-12-06 18:55:55,550 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1246 transitions. Word has length 94 [2021-12-06 18:55:55,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:55:55,550 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1246 transitions. [2021-12-06 18:55:55,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:55,550 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1246 transitions. [2021-12-06 18:55:55,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-06 18:55:55,551 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:55:55,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:55:55,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 18:55:55,551 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:55:55,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:55,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1869291794, now seen corresponding path program 1 times [2021-12-06 18:55:55,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:55,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253722842] [2021-12-06 18:55:55,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:55,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:55,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:55,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:55,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253722842] [2021-12-06 18:55:55,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253722842] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:55,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:55,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:55:55,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938976294] [2021-12-06 18:55:55,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:55,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:55:55,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:55,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:55:55,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:55:55,646 INFO L87 Difference]: Start difference. First operand 910 states and 1246 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:56,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:55:56,643 INFO L93 Difference]: Finished difference Result 1883 states and 2633 transitions. [2021-12-06 18:55:56,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:55:56,643 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-06 18:55:56,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:55:56,649 INFO L225 Difference]: With dead ends: 1883 [2021-12-06 18:55:56,649 INFO L226 Difference]: Without dead ends: 1710 [2021-12-06 18:55:56,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 18:55:56,650 INFO L933 BasicCegarLoop]: 669 mSDtfsCounter, 4291 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 2224 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4291 SdHoareTripleChecker+Valid, 2812 SdHoareTripleChecker+Invalid, 2293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:55:56,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4291 Valid, 2812 Invalid, 2293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2224 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:55:56,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2021-12-06 18:55:56,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 910. [2021-12-06 18:55:56,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.402027027027027) internal successors, (1245), 909 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:56,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1245 transitions. [2021-12-06 18:55:56,711 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1245 transitions. Word has length 94 [2021-12-06 18:55:56,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:55:56,711 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1245 transitions. [2021-12-06 18:55:56,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:56,711 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1245 transitions. [2021-12-06 18:55:56,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-06 18:55:56,712 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:55:56,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:55:56,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 18:55:56,713 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:55:56,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:56,713 INFO L85 PathProgramCache]: Analyzing trace with hash 191796868, now seen corresponding path program 1 times [2021-12-06 18:55:56,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:56,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314750190] [2021-12-06 18:55:56,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:56,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:56,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:56,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:56,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314750190] [2021-12-06 18:55:56,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314750190] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:56,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:56,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:55:56,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280645181] [2021-12-06 18:55:56,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:56,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:55:56,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:56,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:55:56,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:55:56,798 INFO L87 Difference]: Start difference. First operand 910 states and 1245 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:57,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:55:57,729 INFO L93 Difference]: Finished difference Result 1883 states and 2631 transitions. [2021-12-06 18:55:57,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:55:57,730 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-06 18:55:57,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:55:57,736 INFO L225 Difference]: With dead ends: 1883 [2021-12-06 18:55:57,736 INFO L226 Difference]: Without dead ends: 1710 [2021-12-06 18:55:57,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:55:57,737 INFO L933 BasicCegarLoop]: 729 mSDtfsCounter, 2139 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 2341 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2139 SdHoareTripleChecker+Valid, 2938 SdHoareTripleChecker+Invalid, 2375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:55:57,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2139 Valid, 2938 Invalid, 2375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2341 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:55:57,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2021-12-06 18:55:57,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 910. [2021-12-06 18:55:57,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4009009009009008) internal successors, (1244), 909 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:57,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1244 transitions. [2021-12-06 18:55:57,801 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1244 transitions. Word has length 94 [2021-12-06 18:55:57,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:55:57,801 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1244 transitions. [2021-12-06 18:55:57,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:57,801 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1244 transitions. [2021-12-06 18:55:57,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-06 18:55:57,802 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:55:57,803 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:55:57,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 18:55:57,803 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:55:57,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:57,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1752938330, now seen corresponding path program 1 times [2021-12-06 18:55:57,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:57,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723853942] [2021-12-06 18:55:57,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:57,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:57,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:57,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:57,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723853942] [2021-12-06 18:55:57,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723853942] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:57,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:57,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:55:57,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266560671] [2021-12-06 18:55:57,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:57,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:55:57,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:57,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:55:57,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:55:57,889 INFO L87 Difference]: Start difference. First operand 910 states and 1244 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:58,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:55:58,895 INFO L93 Difference]: Finished difference Result 1878 states and 2625 transitions. [2021-12-06 18:55:58,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:55:58,895 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-06 18:55:58,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:55:58,901 INFO L225 Difference]: With dead ends: 1878 [2021-12-06 18:55:58,901 INFO L226 Difference]: Without dead ends: 1710 [2021-12-06 18:55:58,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 18:55:58,902 INFO L933 BasicCegarLoop]: 657 mSDtfsCounter, 4329 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 2210 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4329 SdHoareTripleChecker+Valid, 2781 SdHoareTripleChecker+Invalid, 2279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:55:58,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4329 Valid, 2781 Invalid, 2279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2210 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:55:58,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2021-12-06 18:55:58,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 910. [2021-12-06 18:55:58,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3997747747747749) internal successors, (1243), 909 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:58,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1243 transitions. [2021-12-06 18:55:58,973 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1243 transitions. Word has length 94 [2021-12-06 18:55:58,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:55:58,973 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1243 transitions. [2021-12-06 18:55:58,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:58,973 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1243 transitions. [2021-12-06 18:55:58,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 18:55:58,974 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:55:58,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:55:58,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 18:55:58,975 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:55:58,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:58,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1333702137, now seen corresponding path program 1 times [2021-12-06 18:55:58,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:58,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530788585] [2021-12-06 18:55:58,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:58,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:59,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:59,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:59,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530788585] [2021-12-06 18:55:59,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530788585] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:59,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:59,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:55:59,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975447074] [2021-12-06 18:55:59,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:59,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:55:59,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:59,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:55:59,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:55:59,056 INFO L87 Difference]: Start difference. First operand 910 states and 1243 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:55:59,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:55:59,962 INFO L93 Difference]: Finished difference Result 1914 states and 2670 transitions. [2021-12-06 18:55:59,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:55:59,962 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-06 18:55:59,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:55:59,970 INFO L225 Difference]: With dead ends: 1914 [2021-12-06 18:55:59,970 INFO L226 Difference]: Without dead ends: 1710 [2021-12-06 18:55:59,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 18:55:59,972 INFO L933 BasicCegarLoop]: 622 mSDtfsCounter, 4664 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 2059 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4664 SdHoareTripleChecker+Valid, 2663 SdHoareTripleChecker+Invalid, 2132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:55:59,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4664 Valid, 2663 Invalid, 2132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2059 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 18:55:59,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2021-12-06 18:56:00,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 910. [2021-12-06 18:56:00,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3975225225225225) internal successors, (1241), 909 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:00,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1241 transitions. [2021-12-06 18:56:00,040 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1241 transitions. Word has length 96 [2021-12-06 18:56:00,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:00,041 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1241 transitions. [2021-12-06 18:56:00,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:00,041 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1241 transitions. [2021-12-06 18:56:00,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 18:56:00,042 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:00,042 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:00,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 18:56:00,042 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:00,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:00,042 INFO L85 PathProgramCache]: Analyzing trace with hash 924856909, now seen corresponding path program 1 times [2021-12-06 18:56:00,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:00,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670039127] [2021-12-06 18:56:00,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:00,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:00,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:00,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:00,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670039127] [2021-12-06 18:56:00,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670039127] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:00,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:00,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:00,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785027821] [2021-12-06 18:56:00,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:00,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:00,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:00,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:00,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:00,151 INFO L87 Difference]: Start difference. First operand 910 states and 1241 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:01,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:01,235 INFO L93 Difference]: Finished difference Result 1856 states and 2581 transitions. [2021-12-06 18:56:01,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:01,235 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-06 18:56:01,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:01,239 INFO L225 Difference]: With dead ends: 1856 [2021-12-06 18:56:01,239 INFO L226 Difference]: Without dead ends: 1686 [2021-12-06 18:56:01,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:01,240 INFO L933 BasicCegarLoop]: 625 mSDtfsCounter, 3855 mSDsluCounter, 2628 mSDsCounter, 0 mSdLazyCounter, 2558 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3855 SdHoareTripleChecker+Valid, 3253 SdHoareTripleChecker+Invalid, 2657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:01,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3855 Valid, 3253 Invalid, 2657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2558 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 18:56:01,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2021-12-06 18:56:01,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 910. [2021-12-06 18:56:01,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3952702702702702) internal successors, (1239), 909 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:01,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1239 transitions. [2021-12-06 18:56:01,318 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1239 transitions. Word has length 96 [2021-12-06 18:56:01,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:01,318 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1239 transitions. [2021-12-06 18:56:01,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:01,319 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1239 transitions. [2021-12-06 18:56:01,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 18:56:01,320 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:01,320 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:01,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 18:56:01,320 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:01,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:01,320 INFO L85 PathProgramCache]: Analyzing trace with hash 92967727, now seen corresponding path program 1 times [2021-12-06 18:56:01,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:01,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31050146] [2021-12-06 18:56:01,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:01,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:01,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:01,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:01,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31050146] [2021-12-06 18:56:01,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31050146] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:01,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:01,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:01,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497485962] [2021-12-06 18:56:01,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:01,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:01,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:01,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:01,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:01,395 INFO L87 Difference]: Start difference. First operand 910 states and 1239 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:02,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:02,294 INFO L93 Difference]: Finished difference Result 2016 states and 2805 transitions. [2021-12-06 18:56:02,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:02,294 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-06 18:56:02,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:02,296 INFO L225 Difference]: With dead ends: 2016 [2021-12-06 18:56:02,296 INFO L226 Difference]: Without dead ends: 1738 [2021-12-06 18:56:02,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:02,297 INFO L933 BasicCegarLoop]: 809 mSDtfsCounter, 3060 mSDsluCounter, 2325 mSDsCounter, 0 mSdLazyCounter, 2391 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3060 SdHoareTripleChecker+Valid, 3134 SdHoareTripleChecker+Invalid, 2422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:02,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3060 Valid, 3134 Invalid, 2422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2391 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 18:56:02,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2021-12-06 18:56:02,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 910. [2021-12-06 18:56:02,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.393018018018018) internal successors, (1237), 909 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:02,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1237 transitions. [2021-12-06 18:56:02,371 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1237 transitions. Word has length 96 [2021-12-06 18:56:02,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:02,371 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1237 transitions. [2021-12-06 18:56:02,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:02,371 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1237 transitions. [2021-12-06 18:56:02,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 18:56:02,372 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:02,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:02,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 18:56:02,372 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:02,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:02,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1818861412, now seen corresponding path program 1 times [2021-12-06 18:56:02,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:02,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738155968] [2021-12-06 18:56:02,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:02,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:02,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:02,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:02,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738155968] [2021-12-06 18:56:02,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738155968] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:02,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:02,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 18:56:02,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580140859] [2021-12-06 18:56:02,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:02,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:56:02,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:02,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:56:02,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:56:02,498 INFO L87 Difference]: Start difference. First operand 910 states and 1237 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:04,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:04,566 INFO L93 Difference]: Finished difference Result 2774 states and 3914 transitions. [2021-12-06 18:56:04,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 18:56:04,567 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-06 18:56:04,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:04,570 INFO L225 Difference]: With dead ends: 2774 [2021-12-06 18:56:04,570 INFO L226 Difference]: Without dead ends: 2608 [2021-12-06 18:56:04,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 18:56:04,571 INFO L933 BasicCegarLoop]: 714 mSDtfsCounter, 6119 mSDsluCounter, 2853 mSDsCounter, 0 mSdLazyCounter, 2931 mSolverCounterSat, 640 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6119 SdHoareTripleChecker+Valid, 3567 SdHoareTripleChecker+Invalid, 3571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 640 IncrementalHoareTripleChecker+Valid, 2931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:04,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6119 Valid, 3567 Invalid, 3571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [640 Valid, 2931 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 18:56:04,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2608 states. [2021-12-06 18:56:04,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2608 to 918. [2021-12-06 18:56:04,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3895089285714286) internal successors, (1245), 917 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:04,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1245 transitions. [2021-12-06 18:56:04,659 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1245 transitions. Word has length 96 [2021-12-06 18:56:04,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:04,659 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1245 transitions. [2021-12-06 18:56:04,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:04,659 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1245 transitions. [2021-12-06 18:56:04,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 18:56:04,660 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:04,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:04,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-06 18:56:04,661 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:04,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:04,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1839313585, now seen corresponding path program 1 times [2021-12-06 18:56:04,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:04,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719844034] [2021-12-06 18:56:04,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:04,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:04,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:04,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:04,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719844034] [2021-12-06 18:56:04,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719844034] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:04,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:04,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:04,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16017197] [2021-12-06 18:56:04,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:04,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:04,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:04,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:04,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:04,735 INFO L87 Difference]: Start difference. First operand 918 states and 1245 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:05,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:05,649 INFO L93 Difference]: Finished difference Result 1850 states and 2568 transitions. [2021-12-06 18:56:05,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:05,649 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-06 18:56:05,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:05,651 INFO L225 Difference]: With dead ends: 1850 [2021-12-06 18:56:05,651 INFO L226 Difference]: Without dead ends: 1686 [2021-12-06 18:56:05,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:05,652 INFO L933 BasicCegarLoop]: 617 mSDtfsCounter, 2259 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 2071 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2259 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 2133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:05,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2259 Valid, 2601 Invalid, 2133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2071 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 18:56:05,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2021-12-06 18:56:05,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2021-12-06 18:56:05,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3872767857142858) internal successors, (1243), 917 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:05,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1243 transitions. [2021-12-06 18:56:05,746 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1243 transitions. Word has length 96 [2021-12-06 18:56:05,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:05,746 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1243 transitions. [2021-12-06 18:56:05,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:05,747 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1243 transitions. [2021-12-06 18:56:05,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 18:56:05,748 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:05,748 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:05,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-06 18:56:05,748 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:05,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:05,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1859604465, now seen corresponding path program 1 times [2021-12-06 18:56:05,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:05,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935806306] [2021-12-06 18:56:05,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:05,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:05,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:05,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:05,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:05,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935806306] [2021-12-06 18:56:05,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935806306] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:05,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:05,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:05,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743234971] [2021-12-06 18:56:05,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:05,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:05,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:05,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:05,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:05,824 INFO L87 Difference]: Start difference. First operand 918 states and 1243 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:06,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:06,858 INFO L93 Difference]: Finished difference Result 1910 states and 2651 transitions. [2021-12-06 18:56:06,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:06,859 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-06 18:56:06,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:06,861 INFO L225 Difference]: With dead ends: 1910 [2021-12-06 18:56:06,861 INFO L226 Difference]: Without dead ends: 1718 [2021-12-06 18:56:06,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:06,862 INFO L933 BasicCegarLoop]: 837 mSDtfsCounter, 1932 mSDsluCounter, 2529 mSDsCounter, 0 mSdLazyCounter, 2641 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1932 SdHoareTripleChecker+Valid, 3366 SdHoareTripleChecker+Invalid, 2672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:06,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1932 Valid, 3366 Invalid, 2672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2641 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:56:06,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2021-12-06 18:56:06,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 918. [2021-12-06 18:56:06,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3850446428571428) internal successors, (1241), 917 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:06,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1241 transitions. [2021-12-06 18:56:06,958 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1241 transitions. Word has length 96 [2021-12-06 18:56:06,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:06,959 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1241 transitions. [2021-12-06 18:56:06,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:06,959 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1241 transitions. [2021-12-06 18:56:06,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 18:56:06,960 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:06,960 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:06,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-06 18:56:06,960 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:06,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:06,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1450759237, now seen corresponding path program 1 times [2021-12-06 18:56:06,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:06,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665790458] [2021-12-06 18:56:06,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:06,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:07,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:07,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:07,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665790458] [2021-12-06 18:56:07,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665790458] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:07,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:07,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:07,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648991764] [2021-12-06 18:56:07,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:07,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:07,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:07,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:07,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:07,040 INFO L87 Difference]: Start difference. First operand 918 states and 1241 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:08,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:08,159 INFO L93 Difference]: Finished difference Result 1852 states and 2565 transitions. [2021-12-06 18:56:08,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:08,160 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-06 18:56:08,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:08,162 INFO L225 Difference]: With dead ends: 1852 [2021-12-06 18:56:08,162 INFO L226 Difference]: Without dead ends: 1686 [2021-12-06 18:56:08,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:08,163 INFO L933 BasicCegarLoop]: 641 mSDtfsCounter, 3809 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 2579 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3809 SdHoareTripleChecker+Valid, 3319 SdHoareTripleChecker+Invalid, 2677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:08,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3809 Valid, 3319 Invalid, 2677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2579 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 18:56:08,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2021-12-06 18:56:08,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2021-12-06 18:56:08,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3828125) internal successors, (1239), 917 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:08,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1239 transitions. [2021-12-06 18:56:08,255 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1239 transitions. Word has length 96 [2021-12-06 18:56:08,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:08,256 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1239 transitions. [2021-12-06 18:56:08,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:08,256 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1239 transitions. [2021-12-06 18:56:08,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 18:56:08,257 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:08,257 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:08,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-06 18:56:08,257 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:08,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:08,257 INFO L85 PathProgramCache]: Analyzing trace with hash 627769446, now seen corresponding path program 1 times [2021-12-06 18:56:08,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:08,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103235720] [2021-12-06 18:56:08,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:08,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:08,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:08,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:08,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103235720] [2021-12-06 18:56:08,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103235720] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:08,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:08,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:08,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450796007] [2021-12-06 18:56:08,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:08,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:08,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:08,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:08,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:08,328 INFO L87 Difference]: Start difference. First operand 918 states and 1239 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:09,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:09,492 INFO L93 Difference]: Finished difference Result 1900 states and 2629 transitions. [2021-12-06 18:56:09,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:09,492 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-06 18:56:09,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:09,494 INFO L225 Difference]: With dead ends: 1900 [2021-12-06 18:56:09,494 INFO L226 Difference]: Without dead ends: 1718 [2021-12-06 18:56:09,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:09,495 INFO L933 BasicCegarLoop]: 790 mSDtfsCounter, 3133 mSDsluCounter, 2335 mSDsCounter, 0 mSdLazyCounter, 2389 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3133 SdHoareTripleChecker+Valid, 3125 SdHoareTripleChecker+Invalid, 2439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:09,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3133 Valid, 3125 Invalid, 2439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2389 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 18:56:09,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2021-12-06 18:56:09,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 918. [2021-12-06 18:56:09,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3816964285714286) internal successors, (1238), 917 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:09,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1238 transitions. [2021-12-06 18:56:09,590 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1238 transitions. Word has length 96 [2021-12-06 18:56:09,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:09,590 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1238 transitions. [2021-12-06 18:56:09,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:09,591 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1238 transitions. [2021-12-06 18:56:09,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 18:56:09,592 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:09,592 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:09,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-06 18:56:09,592 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:09,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:09,592 INFO L85 PathProgramCache]: Analyzing trace with hash 218924218, now seen corresponding path program 1 times [2021-12-06 18:56:09,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:09,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515050988] [2021-12-06 18:56:09,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:09,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:09,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:09,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:09,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515050988] [2021-12-06 18:56:09,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515050988] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:09,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:09,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:09,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723321187] [2021-12-06 18:56:09,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:09,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:09,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:09,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:09,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:09,659 INFO L87 Difference]: Start difference. First operand 918 states and 1238 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:10,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:10,682 INFO L93 Difference]: Finished difference Result 1846 states and 2554 transitions. [2021-12-06 18:56:10,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:10,682 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-06 18:56:10,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:10,684 INFO L225 Difference]: With dead ends: 1846 [2021-12-06 18:56:10,684 INFO L226 Difference]: Without dead ends: 1686 [2021-12-06 18:56:10,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:10,685 INFO L933 BasicCegarLoop]: 714 mSDtfsCounter, 2950 mSDsluCounter, 2269 mSDsCounter, 0 mSdLazyCounter, 2371 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2950 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 2456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:10,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2950 Valid, 2983 Invalid, 2456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2371 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:56:10,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2021-12-06 18:56:10,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2021-12-06 18:56:10,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3805803571428572) internal successors, (1237), 917 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:10,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1237 transitions. [2021-12-06 18:56:10,782 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1237 transitions. Word has length 96 [2021-12-06 18:56:10,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:10,782 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1237 transitions. [2021-12-06 18:56:10,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:10,782 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1237 transitions. [2021-12-06 18:56:10,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 18:56:10,783 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:10,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:10,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-06 18:56:10,783 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:10,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:10,784 INFO L85 PathProgramCache]: Analyzing trace with hash 587026393, now seen corresponding path program 1 times [2021-12-06 18:56:10,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:10,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436440640] [2021-12-06 18:56:10,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:10,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:10,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:10,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:10,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:10,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436440640] [2021-12-06 18:56:10,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436440640] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:10,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:10,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:10,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125021763] [2021-12-06 18:56:10,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:10,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:10,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:10,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:10,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:10,874 INFO L87 Difference]: Start difference. First operand 918 states and 1237 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:11,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:11,870 INFO L93 Difference]: Finished difference Result 1846 states and 2553 transitions. [2021-12-06 18:56:11,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:11,870 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-06 18:56:11,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:11,872 INFO L225 Difference]: With dead ends: 1846 [2021-12-06 18:56:11,872 INFO L226 Difference]: Without dead ends: 1686 [2021-12-06 18:56:11,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:11,873 INFO L933 BasicCegarLoop]: 727 mSDtfsCounter, 2059 mSDsluCounter, 2226 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2059 SdHoareTripleChecker+Valid, 2953 SdHoareTripleChecker+Invalid, 2377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:11,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2059 Valid, 2953 Invalid, 2377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2319 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:56:11,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2021-12-06 18:56:11,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2021-12-06 18:56:11,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3794642857142858) internal successors, (1236), 917 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:11,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1236 transitions. [2021-12-06 18:56:11,979 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1236 transitions. Word has length 96 [2021-12-06 18:56:11,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:11,979 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1236 transitions. [2021-12-06 18:56:11,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:11,979 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1236 transitions. [2021-12-06 18:56:11,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 18:56:11,980 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:11,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:11,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-06 18:56:11,981 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:11,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:11,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1223338080, now seen corresponding path program 1 times [2021-12-06 18:56:11,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:11,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201150910] [2021-12-06 18:56:11,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:11,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:12,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:12,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:12,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201150910] [2021-12-06 18:56:12,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201150910] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:12,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:12,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:12,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094478463] [2021-12-06 18:56:12,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:12,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:12,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:12,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:12,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:12,042 INFO L87 Difference]: Start difference. First operand 918 states and 1236 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:13,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:13,007 INFO L93 Difference]: Finished difference Result 1842 states and 2547 transitions. [2021-12-06 18:56:13,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:13,007 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-06 18:56:13,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:13,009 INFO L225 Difference]: With dead ends: 1842 [2021-12-06 18:56:13,009 INFO L226 Difference]: Without dead ends: 1686 [2021-12-06 18:56:13,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:13,010 INFO L933 BasicCegarLoop]: 667 mSDtfsCounter, 3571 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3571 SdHoareTripleChecker+Valid, 2800 SdHoareTripleChecker+Invalid, 2278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:13,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3571 Valid, 2800 Invalid, 2278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 18:56:13,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2021-12-06 18:56:13,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2021-12-06 18:56:13,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3783482142857142) internal successors, (1235), 917 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:13,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1235 transitions. [2021-12-06 18:56:13,113 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1235 transitions. Word has length 96 [2021-12-06 18:56:13,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:13,113 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1235 transitions. [2021-12-06 18:56:13,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:13,114 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1235 transitions. [2021-12-06 18:56:13,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 18:56:13,115 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:13,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:13,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-06 18:56:13,115 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:13,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:13,115 INFO L85 PathProgramCache]: Analyzing trace with hash -236760265, now seen corresponding path program 1 times [2021-12-06 18:56:13,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:13,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731506931] [2021-12-06 18:56:13,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:13,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:13,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:13,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:13,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731506931] [2021-12-06 18:56:13,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731506931] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:13,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:13,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:13,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266164515] [2021-12-06 18:56:13,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:13,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:13,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:13,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:13,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:13,183 INFO L87 Difference]: Start difference. First operand 918 states and 1235 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:14,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:14,122 INFO L93 Difference]: Finished difference Result 1842 states and 2546 transitions. [2021-12-06 18:56:14,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:14,122 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-06 18:56:14,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:14,125 INFO L225 Difference]: With dead ends: 1842 [2021-12-06 18:56:14,125 INFO L226 Difference]: Without dead ends: 1686 [2021-12-06 18:56:14,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:14,126 INFO L933 BasicCegarLoop]: 718 mSDtfsCounter, 2929 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 2355 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2929 SdHoareTripleChecker+Valid, 3003 SdHoareTripleChecker+Invalid, 2440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:14,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2929 Valid, 3003 Invalid, 2440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2355 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 18:56:14,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2021-12-06 18:56:14,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2021-12-06 18:56:14,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3772321428571428) internal successors, (1234), 917 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:14,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1234 transitions. [2021-12-06 18:56:14,230 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1234 transitions. Word has length 96 [2021-12-06 18:56:14,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:14,231 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1234 transitions. [2021-12-06 18:56:14,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:14,231 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1234 transitions. [2021-12-06 18:56:14,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 18:56:14,232 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:14,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:14,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-06 18:56:14,232 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:14,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:14,232 INFO L85 PathProgramCache]: Analyzing trace with hash -872854485, now seen corresponding path program 1 times [2021-12-06 18:56:14,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:14,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484862809] [2021-12-06 18:56:14,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:14,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:14,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:14,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:14,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484862809] [2021-12-06 18:56:14,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484862809] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:14,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:14,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:14,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25822954] [2021-12-06 18:56:14,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:14,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:14,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:14,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:14,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:14,298 INFO L87 Difference]: Start difference. First operand 918 states and 1234 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:15,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:15,323 INFO L93 Difference]: Finished difference Result 1846 states and 2548 transitions. [2021-12-06 18:56:15,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:15,324 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-06 18:56:15,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:15,325 INFO L225 Difference]: With dead ends: 1846 [2021-12-06 18:56:15,326 INFO L226 Difference]: Without dead ends: 1686 [2021-12-06 18:56:15,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:15,327 INFO L933 BasicCegarLoop]: 778 mSDtfsCounter, 2818 mSDsluCounter, 2381 mSDsCounter, 0 mSdLazyCounter, 2490 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2818 SdHoareTripleChecker+Valid, 3159 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:15,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2818 Valid, 3159 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2490 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:56:15,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2021-12-06 18:56:15,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2021-12-06 18:56:15,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3761160714285714) internal successors, (1233), 917 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:15,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1233 transitions. [2021-12-06 18:56:15,436 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1233 transitions. Word has length 96 [2021-12-06 18:56:15,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:15,437 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1233 transitions. [2021-12-06 18:56:15,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:15,437 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1233 transitions. [2021-12-06 18:56:15,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 18:56:15,438 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:15,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:15,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-06 18:56:15,438 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:15,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:15,438 INFO L85 PathProgramCache]: Analyzing trace with hash -35876805, now seen corresponding path program 1 times [2021-12-06 18:56:15,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:15,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566379346] [2021-12-06 18:56:15,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:15,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:15,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:15,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:15,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566379346] [2021-12-06 18:56:15,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566379346] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:15,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:15,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 18:56:15,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659353266] [2021-12-06 18:56:15,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:15,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:56:15,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:15,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:56:15,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:56:15,556 INFO L87 Difference]: Start difference. First operand 918 states and 1233 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:17,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:17,672 INFO L93 Difference]: Finished difference Result 2754 states and 3874 transitions. [2021-12-06 18:56:17,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 18:56:17,673 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-06 18:56:17,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:17,676 INFO L225 Difference]: With dead ends: 2754 [2021-12-06 18:56:17,676 INFO L226 Difference]: Without dead ends: 2598 [2021-12-06 18:56:17,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 18:56:17,681 INFO L933 BasicCegarLoop]: 753 mSDtfsCounter, 5939 mSDsluCounter, 2564 mSDsCounter, 0 mSdLazyCounter, 2668 mSolverCounterSat, 611 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5939 SdHoareTripleChecker+Valid, 3317 SdHoareTripleChecker+Invalid, 3279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 611 IncrementalHoareTripleChecker+Valid, 2668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:17,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5939 Valid, 3317 Invalid, 3279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [611 Valid, 2668 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 18:56:17,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2021-12-06 18:56:17,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 922. [2021-12-06 18:56:17,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 900 states have (on average 1.3744444444444444) internal successors, (1237), 921 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:17,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1237 transitions. [2021-12-06 18:56:17,795 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1237 transitions. Word has length 96 [2021-12-06 18:56:17,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:17,795 INFO L470 AbstractCegarLoop]: Abstraction has 922 states and 1237 transitions. [2021-12-06 18:56:17,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:17,795 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1237 transitions. [2021-12-06 18:56:17,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 18:56:17,796 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:17,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:17,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-06 18:56:17,797 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:17,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:17,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1688520017, now seen corresponding path program 1 times [2021-12-06 18:56:17,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:17,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480657353] [2021-12-06 18:56:17,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:17,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:17,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:17,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:17,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:17,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480657353] [2021-12-06 18:56:17,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480657353] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:17,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:17,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:17,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860912484] [2021-12-06 18:56:17,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:17,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:17,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:17,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:17,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:17,859 INFO L87 Difference]: Start difference. First operand 922 states and 1237 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:18,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:18,885 INFO L93 Difference]: Finished difference Result 1841 states and 2541 transitions. [2021-12-06 18:56:18,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:18,885 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-06 18:56:18,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:18,886 INFO L225 Difference]: With dead ends: 1841 [2021-12-06 18:56:18,886 INFO L226 Difference]: Without dead ends: 1686 [2021-12-06 18:56:18,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:18,887 INFO L933 BasicCegarLoop]: 662 mSDtfsCounter, 4111 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 2123 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4111 SdHoareTripleChecker+Valid, 2781 SdHoareTripleChecker+Invalid, 2240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 2123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:18,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4111 Valid, 2781 Invalid, 2240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 2123 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:56:18,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2021-12-06 18:56:19,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 922. [2021-12-06 18:56:19,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 900 states have (on average 1.3733333333333333) internal successors, (1236), 921 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:19,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1236 transitions. [2021-12-06 18:56:19,004 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1236 transitions. Word has length 96 [2021-12-06 18:56:19,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:19,004 INFO L470 AbstractCegarLoop]: Abstraction has 922 states and 1236 transitions. [2021-12-06 18:56:19,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:19,005 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1236 transitions. [2021-12-06 18:56:19,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-06 18:56:19,005 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:19,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:19,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-06 18:56:19,006 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:19,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:19,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1446549018, now seen corresponding path program 1 times [2021-12-06 18:56:19,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:19,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605053610] [2021-12-06 18:56:19,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:19,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:19,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:19,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:19,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605053610] [2021-12-06 18:56:19,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605053610] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:19,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:19,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:19,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919812595] [2021-12-06 18:56:19,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:19,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:19,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:19,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:19,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:19,068 INFO L87 Difference]: Start difference. First operand 922 states and 1236 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:20,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:20,111 INFO L93 Difference]: Finished difference Result 1852 states and 2553 transitions. [2021-12-06 18:56:20,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:20,111 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-12-06 18:56:20,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:20,113 INFO L225 Difference]: With dead ends: 1852 [2021-12-06 18:56:20,113 INFO L226 Difference]: Without dead ends: 1686 [2021-12-06 18:56:20,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:20,113 INFO L933 BasicCegarLoop]: 730 mSDtfsCounter, 3005 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 2288 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3005 SdHoareTripleChecker+Valid, 2965 SdHoareTripleChecker+Invalid, 2376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:20,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3005 Valid, 2965 Invalid, 2376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2288 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:56:20,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2021-12-06 18:56:20,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 914. [2021-12-06 18:56:20,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 892 states have (on average 1.3744394618834082) internal successors, (1226), 913 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:20,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1226 transitions. [2021-12-06 18:56:20,225 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1226 transitions. Word has length 97 [2021-12-06 18:56:20,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:20,225 INFO L470 AbstractCegarLoop]: Abstraction has 914 states and 1226 transitions. [2021-12-06 18:56:20,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:20,225 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1226 transitions. [2021-12-06 18:56:20,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-06 18:56:20,226 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:20,226 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:20,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-06 18:56:20,227 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:20,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:20,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1542766093, now seen corresponding path program 1 times [2021-12-06 18:56:20,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:20,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766909763] [2021-12-06 18:56:20,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:20,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:20,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:20,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:20,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766909763] [2021-12-06 18:56:20,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766909763] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:20,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:20,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:20,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202247089] [2021-12-06 18:56:20,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:20,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:20,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:20,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:20,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:20,293 INFO L87 Difference]: Start difference. First operand 914 states and 1226 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:21,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:21,428 INFO L93 Difference]: Finished difference Result 1842 states and 2539 transitions. [2021-12-06 18:56:21,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:21,429 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-12-06 18:56:21,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:21,430 INFO L225 Difference]: With dead ends: 1842 [2021-12-06 18:56:21,430 INFO L226 Difference]: Without dead ends: 1686 [2021-12-06 18:56:21,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:21,431 INFO L933 BasicCegarLoop]: 782 mSDtfsCounter, 1947 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 2501 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1947 SdHoareTripleChecker+Valid, 3167 SdHoareTripleChecker+Invalid, 2558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:21,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1947 Valid, 3167 Invalid, 2558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2501 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:56:21,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2021-12-06 18:56:21,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 910. [2021-12-06 18:56:21,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.375) internal successors, (1221), 909 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:21,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1221 transitions. [2021-12-06 18:56:21,549 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1221 transitions. Word has length 97 [2021-12-06 18:56:21,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:21,549 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1221 transitions. [2021-12-06 18:56:21,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:21,550 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1221 transitions. [2021-12-06 18:56:21,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:21,551 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:21,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:21,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-06 18:56:21,551 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:21,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:21,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1799558176, now seen corresponding path program 1 times [2021-12-06 18:56:21,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:21,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104963068] [2021-12-06 18:56:21,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:21,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:21,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:21,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:21,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104963068] [2021-12-06 18:56:21,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104963068] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:21,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:21,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:21,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923835829] [2021-12-06 18:56:21,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:21,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:21,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:21,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:21,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:21,624 INFO L87 Difference]: Start difference. First operand 910 states and 1221 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:22,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:22,792 INFO L93 Difference]: Finished difference Result 1794 states and 2457 transitions. [2021-12-06 18:56:22,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:22,792 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:22,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:22,793 INFO L225 Difference]: With dead ends: 1794 [2021-12-06 18:56:22,793 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:56:22,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:22,794 INFO L933 BasicCegarLoop]: 593 mSDtfsCounter, 3756 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 2385 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3756 SdHoareTripleChecker+Valid, 3024 SdHoareTripleChecker+Invalid, 2566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 2385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:22,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3756 Valid, 3024 Invalid, 2566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 2385 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 18:56:22,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:56:22,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 910. [2021-12-06 18:56:22,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3727477477477477) internal successors, (1219), 909 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:22,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1219 transitions. [2021-12-06 18:56:22,911 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1219 transitions. Word has length 98 [2021-12-06 18:56:22,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:22,911 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1219 transitions. [2021-12-06 18:56:22,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:22,912 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1219 transitions. [2021-12-06 18:56:22,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:22,913 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:22,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:22,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-06 18:56:22,913 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:22,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:22,913 INFO L85 PathProgramCache]: Analyzing trace with hash 112638926, now seen corresponding path program 1 times [2021-12-06 18:56:22,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:22,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60554570] [2021-12-06 18:56:22,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:22,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:22,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:22,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:22,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60554570] [2021-12-06 18:56:22,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60554570] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:22,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:22,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:22,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737001064] [2021-12-06 18:56:22,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:22,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:22,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:22,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:22,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:22,974 INFO L87 Difference]: Start difference. First operand 910 states and 1219 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:23,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:23,999 INFO L93 Difference]: Finished difference Result 1858 states and 2553 transitions. [2021-12-06 18:56:23,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:23,999 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:24,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:24,001 INFO L225 Difference]: With dead ends: 1858 [2021-12-06 18:56:24,001 INFO L226 Difference]: Without dead ends: 1686 [2021-12-06 18:56:24,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:24,003 INFO L933 BasicCegarLoop]: 735 mSDtfsCounter, 2979 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 2288 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2979 SdHoareTripleChecker+Valid, 2971 SdHoareTripleChecker+Invalid, 2374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:24,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2979 Valid, 2971 Invalid, 2374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2288 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 18:56:24,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2021-12-06 18:56:24,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 910. [2021-12-06 18:56:24,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3704954954954955) internal successors, (1217), 909 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:24,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1217 transitions. [2021-12-06 18:56:24,138 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1217 transitions. Word has length 98 [2021-12-06 18:56:24,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:24,138 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1217 transitions. [2021-12-06 18:56:24,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:24,138 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1217 transitions. [2021-12-06 18:56:24,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:24,139 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:24,139 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:24,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-06 18:56:24,140 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:24,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:24,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1288712520, now seen corresponding path program 1 times [2021-12-06 18:56:24,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:24,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941466064] [2021-12-06 18:56:24,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:24,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:24,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:24,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:24,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941466064] [2021-12-06 18:56:24,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941466064] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:24,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:24,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:24,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747748106] [2021-12-06 18:56:24,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:24,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:24,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:24,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:24,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:24,212 INFO L87 Difference]: Start difference. First operand 910 states and 1217 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:25,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:25,279 INFO L93 Difference]: Finished difference Result 1790 states and 2448 transitions. [2021-12-06 18:56:25,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:25,279 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:25,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:25,280 INFO L225 Difference]: With dead ends: 1790 [2021-12-06 18:56:25,280 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:56:25,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:25,281 INFO L933 BasicCegarLoop]: 657 mSDtfsCounter, 3631 mSDsluCounter, 2054 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3631 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 2343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:25,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3631 Valid, 2711 Invalid, 2343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:56:25,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:56:25,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 910. [2021-12-06 18:56:25,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3682432432432432) internal successors, (1215), 909 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:25,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1215 transitions. [2021-12-06 18:56:25,406 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1215 transitions. Word has length 98 [2021-12-06 18:56:25,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:25,406 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1215 transitions. [2021-12-06 18:56:25,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:25,407 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1215 transitions. [2021-12-06 18:56:25,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:25,407 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:25,408 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:25,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-06 18:56:25,408 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:25,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:25,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1740272545, now seen corresponding path program 1 times [2021-12-06 18:56:25,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:25,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356091659] [2021-12-06 18:56:25,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:25,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:25,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:25,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:25,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356091659] [2021-12-06 18:56:25,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356091659] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:25,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:25,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 18:56:25,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142111100] [2021-12-06 18:56:25,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:25,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:56:25,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:25,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:56:25,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:56:25,524 INFO L87 Difference]: Start difference. First operand 910 states and 1215 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:27,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:27,827 INFO L93 Difference]: Finished difference Result 2546 states and 3540 transitions. [2021-12-06 18:56:27,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 18:56:27,827 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:27,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:27,829 INFO L225 Difference]: With dead ends: 2546 [2021-12-06 18:56:27,829 INFO L226 Difference]: Without dead ends: 2390 [2021-12-06 18:56:27,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 18:56:27,830 INFO L933 BasicCegarLoop]: 667 mSDtfsCounter, 6875 mSDsluCounter, 2854 mSDsCounter, 0 mSdLazyCounter, 2907 mSolverCounterSat, 925 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6875 SdHoareTripleChecker+Valid, 3521 SdHoareTripleChecker+Invalid, 3832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 925 IncrementalHoareTripleChecker+Valid, 2907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:27,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6875 Valid, 3521 Invalid, 3832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [925 Valid, 2907 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 18:56:27,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2021-12-06 18:56:27,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 918. [2021-12-06 18:56:27,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3649553571428572) internal successors, (1223), 917 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:27,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1223 transitions. [2021-12-06 18:56:27,965 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1223 transitions. Word has length 98 [2021-12-06 18:56:27,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:27,965 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1223 transitions. [2021-12-06 18:56:27,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:27,965 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1223 transitions. [2021-12-06 18:56:27,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:27,966 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:27,966 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:27,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-06 18:56:27,967 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:27,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:27,967 INFO L85 PathProgramCache]: Analyzing trace with hash -285632464, now seen corresponding path program 1 times [2021-12-06 18:56:27,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:27,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084669587] [2021-12-06 18:56:27,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:27,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:28,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:28,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:28,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084669587] [2021-12-06 18:56:28,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084669587] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:28,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:28,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:28,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974054575] [2021-12-06 18:56:28,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:28,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:28,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:28,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:28,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:28,037 INFO L87 Difference]: Start difference. First operand 918 states and 1223 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:29,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:29,219 INFO L93 Difference]: Finished difference Result 1930 states and 2648 transitions. [2021-12-06 18:56:29,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:29,220 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:29,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:29,221 INFO L225 Difference]: With dead ends: 1930 [2021-12-06 18:56:29,221 INFO L226 Difference]: Without dead ends: 1718 [2021-12-06 18:56:29,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:29,222 INFO L933 BasicCegarLoop]: 790 mSDtfsCounter, 4115 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4115 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 2384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:29,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4115 Valid, 3101 Invalid, 2384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2319 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:56:29,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2021-12-06 18:56:29,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 918. [2021-12-06 18:56:29,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3627232142857142) internal successors, (1221), 917 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:29,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1221 transitions. [2021-12-06 18:56:29,358 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1221 transitions. Word has length 98 [2021-12-06 18:56:29,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:29,358 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1221 transitions. [2021-12-06 18:56:29,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:29,359 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1221 transitions. [2021-12-06 18:56:29,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:29,360 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:29,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:29,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-06 18:56:29,360 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:29,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:29,361 INFO L85 PathProgramCache]: Analyzing trace with hash 131410264, now seen corresponding path program 1 times [2021-12-06 18:56:29,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:29,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484696583] [2021-12-06 18:56:29,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:29,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:29,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:29,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:29,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484696583] [2021-12-06 18:56:29,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484696583] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:29,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:29,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:29,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515586721] [2021-12-06 18:56:29,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:29,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:29,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:29,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:29,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:29,446 INFO L87 Difference]: Start difference. First operand 918 states and 1221 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:30,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:30,712 INFO L93 Difference]: Finished difference Result 1794 states and 2447 transitions. [2021-12-06 18:56:30,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:30,713 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:30,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:30,714 INFO L225 Difference]: With dead ends: 1794 [2021-12-06 18:56:30,714 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:56:30,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:30,715 INFO L933 BasicCegarLoop]: 602 mSDtfsCounter, 3724 mSDsluCounter, 2458 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3724 SdHoareTripleChecker+Valid, 3060 SdHoareTripleChecker+Invalid, 2563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:30,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3724 Valid, 3060 Invalid, 2563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 18:56:30,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:56:30,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 918. [2021-12-06 18:56:30,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3604910714285714) internal successors, (1219), 917 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:30,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1219 transitions. [2021-12-06 18:56:30,852 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1219 transitions. Word has length 98 [2021-12-06 18:56:30,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:30,852 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1219 transitions. [2021-12-06 18:56:30,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:30,852 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1219 transitions. [2021-12-06 18:56:30,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:30,853 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:30,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:30,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-06 18:56:30,854 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:30,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:30,854 INFO L85 PathProgramCache]: Analyzing trace with hash 2043607366, now seen corresponding path program 1 times [2021-12-06 18:56:30,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:30,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854296904] [2021-12-06 18:56:30,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:30,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:30,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:30,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:30,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854296904] [2021-12-06 18:56:30,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854296904] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:30,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:30,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:30,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11900386] [2021-12-06 18:56:30,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:30,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:30,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:30,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:30,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:30,914 INFO L87 Difference]: Start difference. First operand 918 states and 1219 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:32,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:32,031 INFO L93 Difference]: Finished difference Result 1866 states and 2551 transitions. [2021-12-06 18:56:32,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:32,031 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:32,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:32,033 INFO L225 Difference]: With dead ends: 1866 [2021-12-06 18:56:32,033 INFO L226 Difference]: Without dead ends: 1694 [2021-12-06 18:56:32,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:32,033 INFO L933 BasicCegarLoop]: 757 mSDtfsCounter, 2785 mSDsluCounter, 2391 mSDsCounter, 0 mSdLazyCounter, 2382 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 3148 SdHoareTripleChecker+Invalid, 2466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:32,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2785 Valid, 3148 Invalid, 2466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2382 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:56:32,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2021-12-06 18:56:32,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 918. [2021-12-06 18:56:32,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3582589285714286) internal successors, (1217), 917 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:32,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1217 transitions. [2021-12-06 18:56:32,190 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1217 transitions. Word has length 98 [2021-12-06 18:56:32,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:32,190 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1217 transitions. [2021-12-06 18:56:32,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:32,190 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1217 transitions. [2021-12-06 18:56:32,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:32,191 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:32,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:32,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-12-06 18:56:32,192 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:32,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:32,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1144212400, now seen corresponding path program 1 times [2021-12-06 18:56:32,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:32,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435614452] [2021-12-06 18:56:32,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:32,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:32,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:32,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:32,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435614452] [2021-12-06 18:56:32,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435614452] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:32,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:32,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:32,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722982621] [2021-12-06 18:56:32,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:32,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:32,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:32,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:32,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:32,264 INFO L87 Difference]: Start difference. First operand 918 states and 1217 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:33,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:33,520 INFO L93 Difference]: Finished difference Result 1790 states and 2438 transitions. [2021-12-06 18:56:33,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:33,521 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:33,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:33,522 INFO L225 Difference]: With dead ends: 1790 [2021-12-06 18:56:33,522 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:56:33,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:33,523 INFO L933 BasicCegarLoop]: 671 mSDtfsCounter, 2843 mSDsluCounter, 2381 mSDsCounter, 0 mSdLazyCounter, 2368 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 3052 SdHoareTripleChecker+Invalid, 2510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 2368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:33,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2843 Valid, 3052 Invalid, 2510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 2368 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 18:56:33,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:56:33,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 918. [2021-12-06 18:56:33,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3560267857142858) internal successors, (1215), 917 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:33,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1215 transitions. [2021-12-06 18:56:33,664 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1215 transitions. Word has length 98 [2021-12-06 18:56:33,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:33,664 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1215 transitions. [2021-12-06 18:56:33,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:33,665 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1215 transitions. [2021-12-06 18:56:33,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:33,666 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:33,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:33,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-12-06 18:56:33,666 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:33,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:33,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1885152984, now seen corresponding path program 1 times [2021-12-06 18:56:33,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:33,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071578116] [2021-12-06 18:56:33,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:33,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:33,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:33,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:33,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071578116] [2021-12-06 18:56:33,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071578116] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:33,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:33,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 18:56:33,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833911888] [2021-12-06 18:56:33,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:33,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:56:33,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:33,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:56:33,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:56:33,781 INFO L87 Difference]: Start difference. First operand 918 states and 1215 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:36,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:36,163 INFO L93 Difference]: Finished difference Result 2392 states and 3300 transitions. [2021-12-06 18:56:36,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 18:56:36,164 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:36,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:36,166 INFO L225 Difference]: With dead ends: 2392 [2021-12-06 18:56:36,166 INFO L226 Difference]: Without dead ends: 2387 [2021-12-06 18:56:36,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 18:56:36,168 INFO L933 BasicCegarLoop]: 725 mSDtfsCounter, 5913 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 2567 mSolverCounterSat, 887 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5913 SdHoareTripleChecker+Valid, 3143 SdHoareTripleChecker+Invalid, 3454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 887 IncrementalHoareTripleChecker+Valid, 2567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:36,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5913 Valid, 3143 Invalid, 3454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [887 Valid, 2567 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 18:56:36,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2387 states. [2021-12-06 18:56:36,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2387 to 926. [2021-12-06 18:56:36,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 904 states have (on average 1.3528761061946903) internal successors, (1223), 925 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:36,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1223 transitions. [2021-12-06 18:56:36,329 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1223 transitions. Word has length 98 [2021-12-06 18:56:36,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:36,329 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 1223 transitions. [2021-12-06 18:56:36,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:36,329 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1223 transitions. [2021-12-06 18:56:36,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:36,331 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:36,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:36,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-12-06 18:56:36,331 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:36,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:36,332 INFO L85 PathProgramCache]: Analyzing trace with hash -495518324, now seen corresponding path program 1 times [2021-12-06 18:56:36,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:36,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308921125] [2021-12-06 18:56:36,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:36,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:36,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:36,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:36,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308921125] [2021-12-06 18:56:36,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308921125] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:36,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:36,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:36,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595484048] [2021-12-06 18:56:36,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:36,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:36,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:36,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:36,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:36,410 INFO L87 Difference]: Start difference. First operand 926 states and 1223 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:37,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:37,605 INFO L93 Difference]: Finished difference Result 1790 states and 2434 transitions. [2021-12-06 18:56:37,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:37,606 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:37,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:37,607 INFO L225 Difference]: With dead ends: 1790 [2021-12-06 18:56:37,607 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:56:37,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:37,608 INFO L933 BasicCegarLoop]: 677 mSDtfsCounter, 3584 mSDsluCounter, 2042 mSDsCounter, 0 mSdLazyCounter, 2110 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3584 SdHoareTripleChecker+Valid, 2719 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 2110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:37,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3584 Valid, 2719 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 2110 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:56:37,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:56:37,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 926. [2021-12-06 18:56:37,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 904 states have (on average 1.3506637168141593) internal successors, (1221), 925 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:37,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1221 transitions. [2021-12-06 18:56:37,761 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1221 transitions. Word has length 98 [2021-12-06 18:56:37,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:37,761 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 1221 transitions. [2021-12-06 18:56:37,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:37,762 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1221 transitions. [2021-12-06 18:56:37,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:37,763 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:37,763 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:37,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-12-06 18:56:37,763 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:37,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:37,763 INFO L85 PathProgramCache]: Analyzing trace with hash -2030828310, now seen corresponding path program 1 times [2021-12-06 18:56:37,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:37,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074556058] [2021-12-06 18:56:37,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:37,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:37,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:37,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:37,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074556058] [2021-12-06 18:56:37,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074556058] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:37,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:37,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:37,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52266291] [2021-12-06 18:56:37,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:37,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:37,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:37,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:37,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:37,831 INFO L87 Difference]: Start difference. First operand 926 states and 1221 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:39,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:39,031 INFO L93 Difference]: Finished difference Result 1786 states and 2426 transitions. [2021-12-06 18:56:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:39,032 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:39,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:39,033 INFO L225 Difference]: With dead ends: 1786 [2021-12-06 18:56:39,033 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:56:39,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:39,034 INFO L933 BasicCegarLoop]: 612 mSDtfsCounter, 2975 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2975 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 2310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:39,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2975 Valid, 2824 Invalid, 2310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:56:39,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:56:39,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 926. [2021-12-06 18:56:39,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 904 states have (on average 1.3484513274336283) internal successors, (1219), 925 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:39,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1219 transitions. [2021-12-06 18:56:39,192 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1219 transitions. Word has length 98 [2021-12-06 18:56:39,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:39,192 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 1219 transitions. [2021-12-06 18:56:39,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:39,192 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1219 transitions. [2021-12-06 18:56:39,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:39,193 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:39,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:39,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-12-06 18:56:39,193 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:39,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:39,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1081413880, now seen corresponding path program 1 times [2021-12-06 18:56:39,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:39,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664382465] [2021-12-06 18:56:39,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:39,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:39,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:39,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:39,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664382465] [2021-12-06 18:56:39,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664382465] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:39,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:39,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:39,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778358399] [2021-12-06 18:56:39,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:39,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:39,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:39,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:39,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:39,264 INFO L87 Difference]: Start difference. First operand 926 states and 1219 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:40,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:40,497 INFO L93 Difference]: Finished difference Result 1643 states and 2208 transitions. [2021-12-06 18:56:40,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:40,497 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:40,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:40,499 INFO L225 Difference]: With dead ends: 1643 [2021-12-06 18:56:40,499 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:56:40,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:40,500 INFO L933 BasicCegarLoop]: 612 mSDtfsCounter, 3687 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 2369 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3687 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 2548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 2369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:40,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3687 Valid, 3101 Invalid, 2548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 2369 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:56:40,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:56:40,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 926. [2021-12-06 18:56:40,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 904 states have (on average 1.3462389380530972) internal successors, (1217), 925 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:40,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1217 transitions. [2021-12-06 18:56:40,656 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1217 transitions. Word has length 98 [2021-12-06 18:56:40,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:40,656 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 1217 transitions. [2021-12-06 18:56:40,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:40,656 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1217 transitions. [2021-12-06 18:56:40,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:40,657 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:40,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:40,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-12-06 18:56:40,657 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:40,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:40,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1301356314, now seen corresponding path program 1 times [2021-12-06 18:56:40,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:40,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67419756] [2021-12-06 18:56:40,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:40,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:40,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:40,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:40,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67419756] [2021-12-06 18:56:40,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67419756] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:40,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:40,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:40,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923242389] [2021-12-06 18:56:40,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:40,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:40,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:40,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:40,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:40,722 INFO L87 Difference]: Start difference. First operand 926 states and 1217 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:41,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:41,963 INFO L93 Difference]: Finished difference Result 1727 states and 2321 transitions. [2021-12-06 18:56:41,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:41,963 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:41,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:41,965 INFO L225 Difference]: With dead ends: 1727 [2021-12-06 18:56:41,965 INFO L226 Difference]: Without dead ends: 1710 [2021-12-06 18:56:41,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:41,965 INFO L933 BasicCegarLoop]: 766 mSDtfsCounter, 1969 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1969 SdHoareTripleChecker+Valid, 3099 SdHoareTripleChecker+Invalid, 2358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:41,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1969 Valid, 3099 Invalid, 2358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2301 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:56:41,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2021-12-06 18:56:42,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 926. [2021-12-06 18:56:42,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 904 states have (on average 1.3440265486725664) internal successors, (1215), 925 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:42,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1215 transitions. [2021-12-06 18:56:42,123 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1215 transitions. Word has length 98 [2021-12-06 18:56:42,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:42,123 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 1215 transitions. [2021-12-06 18:56:42,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:42,123 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1215 transitions. [2021-12-06 18:56:42,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:42,124 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:42,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:42,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-12-06 18:56:42,124 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:42,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:42,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1591996391, now seen corresponding path program 1 times [2021-12-06 18:56:42,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:42,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615180818] [2021-12-06 18:56:42,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:42,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:42,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:42,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:42,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615180818] [2021-12-06 18:56:42,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615180818] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:42,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:42,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:42,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91014956] [2021-12-06 18:56:42,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:42,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:42,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:42,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:42,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:42,208 INFO L87 Difference]: Start difference. First operand 926 states and 1215 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:43,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:43,485 INFO L93 Difference]: Finished difference Result 1790 states and 2424 transitions. [2021-12-06 18:56:43,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:43,485 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:43,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:43,486 INFO L225 Difference]: With dead ends: 1790 [2021-12-06 18:56:43,486 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:56:43,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:43,487 INFO L933 BasicCegarLoop]: 624 mSDtfsCounter, 3658 mSDsluCounter, 2528 mSDsCounter, 0 mSdLazyCounter, 2385 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3658 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 2563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:43,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3658 Valid, 3152 Invalid, 2563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2385 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 18:56:43,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:56:43,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 926. [2021-12-06 18:56:43,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 904 states have (on average 1.3418141592920354) internal successors, (1213), 925 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:43,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1213 transitions. [2021-12-06 18:56:43,649 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1213 transitions. Word has length 98 [2021-12-06 18:56:43,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:43,649 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 1213 transitions. [2021-12-06 18:56:43,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:43,649 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1213 transitions. [2021-12-06 18:56:43,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:43,650 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:43,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:43,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-12-06 18:56:43,650 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:43,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:43,651 INFO L85 PathProgramCache]: Analyzing trace with hash 326277305, now seen corresponding path program 1 times [2021-12-06 18:56:43,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:43,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36127348] [2021-12-06 18:56:43,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:43,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:43,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:43,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:43,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36127348] [2021-12-06 18:56:43,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36127348] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:43,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:43,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 18:56:43,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332162354] [2021-12-06 18:56:43,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:43,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:56:43,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:43,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:56:43,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:56:43,760 INFO L87 Difference]: Start difference. First operand 926 states and 1213 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:46,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:46,249 INFO L93 Difference]: Finished difference Result 2392 states and 3286 transitions. [2021-12-06 18:56:46,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 18:56:46,250 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:46,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:46,251 INFO L225 Difference]: With dead ends: 2392 [2021-12-06 18:56:46,251 INFO L226 Difference]: Without dead ends: 2387 [2021-12-06 18:56:46,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 18:56:46,252 INFO L933 BasicCegarLoop]: 684 mSDtfsCounter, 5618 mSDsluCounter, 2915 mSDsCounter, 0 mSdLazyCounter, 2891 mSolverCounterSat, 759 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5618 SdHoareTripleChecker+Valid, 3599 SdHoareTripleChecker+Invalid, 3650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 759 IncrementalHoareTripleChecker+Valid, 2891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:46,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5618 Valid, 3599 Invalid, 3650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [759 Valid, 2891 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 18:56:46,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2387 states. [2021-12-06 18:56:46,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2387 to 934. [2021-12-06 18:56:46,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 912 states have (on average 1.3388157894736843) internal successors, (1221), 933 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:46,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1221 transitions. [2021-12-06 18:56:46,418 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1221 transitions. Word has length 98 [2021-12-06 18:56:46,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:46,418 INFO L470 AbstractCegarLoop]: Abstraction has 934 states and 1221 transitions. [2021-12-06 18:56:46,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:46,418 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1221 transitions. [2021-12-06 18:56:46,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:46,419 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:46,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:46,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-12-06 18:56:46,419 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:46,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:46,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1596017491, now seen corresponding path program 1 times [2021-12-06 18:56:46,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:46,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420164972] [2021-12-06 18:56:46,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:46,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:46,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:46,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:46,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420164972] [2021-12-06 18:56:46,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420164972] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:46,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:46,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:46,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172714784] [2021-12-06 18:56:46,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:46,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:46,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:46,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:46,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:46,497 INFO L87 Difference]: Start difference. First operand 934 states and 1221 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:47,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:47,886 INFO L93 Difference]: Finished difference Result 1791 states and 2421 transitions. [2021-12-06 18:56:47,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:47,887 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:47,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:47,888 INFO L225 Difference]: With dead ends: 1791 [2021-12-06 18:56:47,888 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:56:47,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:47,889 INFO L933 BasicCegarLoop]: 621 mSDtfsCounter, 3661 mSDsluCounter, 2515 mSDsCounter, 0 mSdLazyCounter, 2370 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3661 SdHoareTripleChecker+Valid, 3136 SdHoareTripleChecker+Invalid, 2548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:47,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3661 Valid, 3136 Invalid, 2548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2370 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 18:56:47,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:56:48,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 934. [2021-12-06 18:56:48,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 912 states have (on average 1.337719298245614) internal successors, (1220), 933 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:48,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1220 transitions. [2021-12-06 18:56:48,057 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1220 transitions. Word has length 98 [2021-12-06 18:56:48,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:48,057 INFO L470 AbstractCegarLoop]: Abstraction has 934 states and 1220 transitions. [2021-12-06 18:56:48,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:48,058 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1220 transitions. [2021-12-06 18:56:48,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:48,059 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:48,059 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:48,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-12-06 18:56:48,059 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:48,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:48,059 INFO L85 PathProgramCache]: Analyzing trace with hash 316179611, now seen corresponding path program 1 times [2021-12-06 18:56:48,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:48,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931445926] [2021-12-06 18:56:48,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:48,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:48,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:48,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:48,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931445926] [2021-12-06 18:56:48,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931445926] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:48,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:48,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:48,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106379973] [2021-12-06 18:56:48,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:48,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:48,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:48,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:48,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:48,122 INFO L87 Difference]: Start difference. First operand 934 states and 1220 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:49,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:49,312 INFO L93 Difference]: Finished difference Result 1883 states and 2542 transitions. [2021-12-06 18:56:49,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:49,312 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:49,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:49,314 INFO L225 Difference]: With dead ends: 1883 [2021-12-06 18:56:49,314 INFO L226 Difference]: Without dead ends: 1718 [2021-12-06 18:56:49,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:49,314 INFO L933 BasicCegarLoop]: 766 mSDtfsCounter, 3733 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 2279 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3733 SdHoareTripleChecker+Valid, 3095 SdHoareTripleChecker+Invalid, 2391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:49,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3733 Valid, 3095 Invalid, 2391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 2279 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 18:56:49,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2021-12-06 18:56:49,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 934. [2021-12-06 18:56:49,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 912 states have (on average 1.3366228070175439) internal successors, (1219), 933 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:49,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1219 transitions. [2021-12-06 18:56:49,480 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1219 transitions. Word has length 98 [2021-12-06 18:56:49,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:49,480 INFO L470 AbstractCegarLoop]: Abstraction has 934 states and 1219 transitions. [2021-12-06 18:56:49,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:49,480 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1219 transitions. [2021-12-06 18:56:49,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:49,481 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:49,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:49,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-12-06 18:56:49,481 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:49,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:49,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1085915592, now seen corresponding path program 1 times [2021-12-06 18:56:49,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:49,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532535637] [2021-12-06 18:56:49,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:49,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:49,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:49,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:49,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532535637] [2021-12-06 18:56:49,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532535637] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:49,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:49,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:49,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938097524] [2021-12-06 18:56:49,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:49,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:49,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:49,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:49,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:49,557 INFO L87 Difference]: Start difference. First operand 934 states and 1219 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:50,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:50,835 INFO L93 Difference]: Finished difference Result 1788 states and 2416 transitions. [2021-12-06 18:56:50,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:50,835 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:50,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:50,837 INFO L225 Difference]: With dead ends: 1788 [2021-12-06 18:56:50,837 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:56:50,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:50,838 INFO L933 BasicCegarLoop]: 685 mSDtfsCounter, 3537 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 2154 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3537 SdHoareTripleChecker+Valid, 2823 SdHoareTripleChecker+Invalid, 2329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 2154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:50,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3537 Valid, 2823 Invalid, 2329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 2154 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:56:50,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:56:51,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 934. [2021-12-06 18:56:51,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 912 states have (on average 1.3355263157894737) internal successors, (1218), 933 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:51,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1218 transitions. [2021-12-06 18:56:51,009 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1218 transitions. Word has length 98 [2021-12-06 18:56:51,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:51,009 INFO L470 AbstractCegarLoop]: Abstraction has 934 states and 1218 transitions. [2021-12-06 18:56:51,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:51,009 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1218 transitions. [2021-12-06 18:56:51,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:51,010 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:51,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:51,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-12-06 18:56:51,010 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:51,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:51,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1943813230, now seen corresponding path program 1 times [2021-12-06 18:56:51,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:51,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470833522] [2021-12-06 18:56:51,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:51,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:51,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:51,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:51,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:51,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470833522] [2021-12-06 18:56:51,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470833522] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:51,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:51,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:51,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226653450] [2021-12-06 18:56:51,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:51,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:51,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:51,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:51,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:51,081 INFO L87 Difference]: Start difference. First operand 934 states and 1218 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:52,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:52,350 INFO L93 Difference]: Finished difference Result 1791 states and 2418 transitions. [2021-12-06 18:56:52,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:52,351 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:52,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:52,352 INFO L225 Difference]: With dead ends: 1791 [2021-12-06 18:56:52,352 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:56:52,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:52,353 INFO L933 BasicCegarLoop]: 699 mSDtfsCounter, 2813 mSDsluCounter, 2388 mSDsCounter, 0 mSdLazyCounter, 2312 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2813 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 2453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 2312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:52,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2813 Valid, 3087 Invalid, 2453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 2312 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:56:52,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:56:52,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 934. [2021-12-06 18:56:52,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 912 states have (on average 1.3344298245614035) internal successors, (1217), 933 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:52,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1217 transitions. [2021-12-06 18:56:52,523 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1217 transitions. Word has length 98 [2021-12-06 18:56:52,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:52,523 INFO L470 AbstractCegarLoop]: Abstraction has 934 states and 1217 transitions. [2021-12-06 18:56:52,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:52,523 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1217 transitions. [2021-12-06 18:56:52,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:52,524 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:52,524 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:52,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-12-06 18:56:52,524 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:52,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:52,525 INFO L85 PathProgramCache]: Analyzing trace with hash 472842913, now seen corresponding path program 1 times [2021-12-06 18:56:52,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:52,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752539367] [2021-12-06 18:56:52,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:52,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:52,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:52,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:52,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752539367] [2021-12-06 18:56:52,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752539367] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:52,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:52,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:52,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354839796] [2021-12-06 18:56:52,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:52,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:52,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:52,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:52,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:52,594 INFO L87 Difference]: Start difference. First operand 934 states and 1217 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:53,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:53,863 INFO L93 Difference]: Finished difference Result 1788 states and 2413 transitions. [2021-12-06 18:56:53,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:53,864 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:53,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:53,865 INFO L225 Difference]: With dead ends: 1788 [2021-12-06 18:56:53,865 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:56:53,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:53,866 INFO L933 BasicCegarLoop]: 689 mSDtfsCounter, 2819 mSDsluCounter, 2441 mSDsCounter, 0 mSdLazyCounter, 2338 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2819 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 2479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 2338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:53,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2819 Valid, 3130 Invalid, 2479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 2338 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:56:53,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:56:54,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 934. [2021-12-06 18:56:54,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 912 states have (on average 1.3333333333333333) internal successors, (1216), 933 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:54,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1216 transitions. [2021-12-06 18:56:54,041 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1216 transitions. Word has length 98 [2021-12-06 18:56:54,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:54,041 INFO L470 AbstractCegarLoop]: Abstraction has 934 states and 1216 transitions. [2021-12-06 18:56:54,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:54,041 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1216 transitions. [2021-12-06 18:56:54,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:54,042 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:54,042 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:54,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-12-06 18:56:54,042 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:54,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:54,042 INFO L85 PathProgramCache]: Analyzing trace with hash -792278387, now seen corresponding path program 1 times [2021-12-06 18:56:54,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:54,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142643682] [2021-12-06 18:56:54,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:54,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:54,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:54,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:54,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142643682] [2021-12-06 18:56:54,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142643682] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:54,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:54,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:54,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180787845] [2021-12-06 18:56:54,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:54,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:54,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:54,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:54,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:54,104 INFO L87 Difference]: Start difference. First operand 934 states and 1216 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:55,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:55,361 INFO L93 Difference]: Finished difference Result 1791 states and 2415 transitions. [2021-12-06 18:56:55,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:56:55,361 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:55,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:55,362 INFO L225 Difference]: With dead ends: 1791 [2021-12-06 18:56:55,362 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:56:55,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:56:55,363 INFO L933 BasicCegarLoop]: 745 mSDtfsCounter, 2310 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2310 SdHoareTripleChecker+Valid, 2980 SdHoareTripleChecker+Invalid, 2446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:55,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2310 Valid, 2980 Invalid, 2446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:56:55,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:56:55,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 934. [2021-12-06 18:56:55,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 912 states have (on average 1.332236842105263) internal successors, (1215), 933 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:55,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1215 transitions. [2021-12-06 18:56:55,537 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1215 transitions. Word has length 98 [2021-12-06 18:56:55,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:55,538 INFO L470 AbstractCegarLoop]: Abstraction has 934 states and 1215 transitions. [2021-12-06 18:56:55,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:55,538 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1215 transitions. [2021-12-06 18:56:55,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:55,539 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:55,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:55,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-12-06 18:56:55,539 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:55,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:55,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1121536989, now seen corresponding path program 1 times [2021-12-06 18:56:55,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:55,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254456544] [2021-12-06 18:56:55,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:55,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:55,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:55,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:55,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254456544] [2021-12-06 18:56:55,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254456544] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:55,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:55,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 18:56:55,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104644448] [2021-12-06 18:56:55,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:55,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:56:55,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:55,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:56:55,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:56:55,655 INFO L87 Difference]: Start difference. First operand 934 states and 1215 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:58,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:56:58,378 INFO L93 Difference]: Finished difference Result 2534 states and 3492 transitions. [2021-12-06 18:56:58,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 18:56:58,378 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:56:58,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:56:58,380 INFO L225 Difference]: With dead ends: 2534 [2021-12-06 18:56:58,380 INFO L226 Difference]: Without dead ends: 2384 [2021-12-06 18:56:58,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 18:56:58,381 INFO L933 BasicCegarLoop]: 690 mSDtfsCounter, 5532 mSDsluCounter, 2939 mSDsCounter, 0 mSdLazyCounter, 2874 mSolverCounterSat, 755 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5532 SdHoareTripleChecker+Valid, 3629 SdHoareTripleChecker+Invalid, 3629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 755 IncrementalHoareTripleChecker+Valid, 2874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-06 18:56:58,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5532 Valid, 3629 Invalid, 3629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [755 Valid, 2874 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-06 18:56:58,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2021-12-06 18:56:58,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 938. [2021-12-06 18:56:58,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 916 states have (on average 1.3307860262008733) internal successors, (1219), 937 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:58,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1219 transitions. [2021-12-06 18:56:58,568 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1219 transitions. Word has length 98 [2021-12-06 18:56:58,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:58,568 INFO L470 AbstractCegarLoop]: Abstraction has 938 states and 1219 transitions. [2021-12-06 18:56:58,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:56:58,568 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1219 transitions. [2021-12-06 18:56:58,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:58,569 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:58,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:58,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-12-06 18:56:58,570 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:56:58,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:58,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1773163569, now seen corresponding path program 1 times [2021-12-06 18:56:58,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:58,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844614083] [2021-12-06 18:56:58,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:58,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:58,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:56:58,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:58,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844614083] [2021-12-06 18:56:58,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844614083] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:58,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:58,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:56:58,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925302653] [2021-12-06 18:56:58,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:58,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:56:58,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:58,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:56:58,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:56:58,651 INFO L87 Difference]: Start difference. First operand 938 states and 1219 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:00,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:00,081 INFO L93 Difference]: Finished difference Result 1786 states and 2407 transitions. [2021-12-06 18:57:00,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:57:00,081 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:57:00,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:00,083 INFO L225 Difference]: With dead ends: 1786 [2021-12-06 18:57:00,083 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:57:00,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:57:00,083 INFO L933 BasicCegarLoop]: 687 mSDtfsCounter, 3519 mSDsluCounter, 2715 mSDsCounter, 0 mSdLazyCounter, 2525 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3519 SdHoareTripleChecker+Valid, 3402 SdHoareTripleChecker+Invalid, 2700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 2525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:00,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3519 Valid, 3402 Invalid, 2700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 2525 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 18:57:00,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:57:00,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 938. [2021-12-06 18:57:00,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 916 states have (on average 1.3296943231441047) internal successors, (1218), 937 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:00,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1218 transitions. [2021-12-06 18:57:00,264 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1218 transitions. Word has length 98 [2021-12-06 18:57:00,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:00,264 INFO L470 AbstractCegarLoop]: Abstraction has 938 states and 1218 transitions. [2021-12-06 18:57:00,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:00,264 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1218 transitions. [2021-12-06 18:57:00,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:57:00,265 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:00,265 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:00,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-12-06 18:57:00,265 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:00,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:00,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1664858732, now seen corresponding path program 1 times [2021-12-06 18:57:00,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:00,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874775887] [2021-12-06 18:57:00,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:00,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:00,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:00,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:00,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874775887] [2021-12-06 18:57:00,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874775887] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:00,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:00,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 18:57:00,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210388230] [2021-12-06 18:57:00,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:00,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:57:00,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:00,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:57:00,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:57:00,375 INFO L87 Difference]: Start difference. First operand 938 states and 1218 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:03,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:03,030 INFO L93 Difference]: Finished difference Result 2534 states and 3490 transitions. [2021-12-06 18:57:03,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 18:57:03,031 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:57:03,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:03,032 INFO L225 Difference]: With dead ends: 2534 [2021-12-06 18:57:03,033 INFO L226 Difference]: Without dead ends: 2384 [2021-12-06 18:57:03,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 18:57:03,033 INFO L933 BasicCegarLoop]: 691 mSDtfsCounter, 6689 mSDsluCounter, 2292 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 893 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6689 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 3198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 893 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:03,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6689 Valid, 2983 Invalid, 3198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [893 Valid, 2305 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 18:57:03,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2021-12-06 18:57:03,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 942. [2021-12-06 18:57:03,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 920 states have (on average 1.3282608695652174) internal successors, (1222), 941 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:03,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1222 transitions. [2021-12-06 18:57:03,225 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1222 transitions. Word has length 98 [2021-12-06 18:57:03,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:03,225 INFO L470 AbstractCegarLoop]: Abstraction has 942 states and 1222 transitions. [2021-12-06 18:57:03,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:03,226 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1222 transitions. [2021-12-06 18:57:03,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:57:03,227 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:03,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:03,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-12-06 18:57:03,227 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:03,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:03,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1981414488, now seen corresponding path program 1 times [2021-12-06 18:57:03,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:03,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396620385] [2021-12-06 18:57:03,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:03,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:03,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:03,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:03,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396620385] [2021-12-06 18:57:03,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396620385] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:03,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:03,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:57:03,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753287883] [2021-12-06 18:57:03,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:03,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:57:03,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:03,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:57:03,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:57:03,301 INFO L87 Difference]: Start difference. First operand 942 states and 1222 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:04,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:04,755 INFO L93 Difference]: Finished difference Result 1788 states and 2407 transitions. [2021-12-06 18:57:04,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:57:04,755 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:57:04,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:04,756 INFO L225 Difference]: With dead ends: 1788 [2021-12-06 18:57:04,757 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:57:04,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:57:04,757 INFO L933 BasicCegarLoop]: 687 mSDtfsCounter, 3517 mSDsluCounter, 2715 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3517 SdHoareTripleChecker+Valid, 3402 SdHoareTripleChecker+Invalid, 2680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:04,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3517 Valid, 3402 Invalid, 2680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 2505 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 18:57:04,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:57:04,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 942. [2021-12-06 18:57:04,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 920 states have (on average 1.3271739130434783) internal successors, (1221), 941 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:04,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1221 transitions. [2021-12-06 18:57:04,951 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1221 transitions. Word has length 98 [2021-12-06 18:57:04,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:04,951 INFO L470 AbstractCegarLoop]: Abstraction has 942 states and 1221 transitions. [2021-12-06 18:57:04,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:04,951 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1221 transitions. [2021-12-06 18:57:04,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:57:04,952 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:04,952 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:04,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-12-06 18:57:04,952 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:04,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:04,953 INFO L85 PathProgramCache]: Analyzing trace with hash 716510655, now seen corresponding path program 1 times [2021-12-06 18:57:04,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:04,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325269530] [2021-12-06 18:57:04,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:04,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:05,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:05,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:05,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325269530] [2021-12-06 18:57:05,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325269530] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:05,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:05,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:57:05,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357883372] [2021-12-06 18:57:05,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:05,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:57:05,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:05,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:57:05,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:57:05,018 INFO L87 Difference]: Start difference. First operand 942 states and 1221 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:06,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:06,330 INFO L93 Difference]: Finished difference Result 1643 states and 2188 transitions. [2021-12-06 18:57:06,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:57:06,330 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:57:06,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:06,332 INFO L225 Difference]: With dead ends: 1643 [2021-12-06 18:57:06,332 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:57:06,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:57:06,332 INFO L933 BasicCegarLoop]: 743 mSDtfsCounter, 2719 mSDsluCounter, 2231 mSDsCounter, 0 mSdLazyCounter, 2274 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2719 SdHoareTripleChecker+Valid, 2974 SdHoareTripleChecker+Invalid, 2429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 2274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:06,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2719 Valid, 2974 Invalid, 2429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 2274 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:57:06,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:57:06,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 942. [2021-12-06 18:57:06,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 920 states have (on average 1.326086956521739) internal successors, (1220), 941 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:06,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1220 transitions. [2021-12-06 18:57:06,526 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1220 transitions. Word has length 98 [2021-12-06 18:57:06,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:06,526 INFO L470 AbstractCegarLoop]: Abstraction has 942 states and 1220 transitions. [2021-12-06 18:57:06,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:06,526 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1220 transitions. [2021-12-06 18:57:06,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:57:06,527 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:06,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:06,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-12-06 18:57:06,527 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:06,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:06,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1793097480, now seen corresponding path program 1 times [2021-12-06 18:57:06,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:06,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524192183] [2021-12-06 18:57:06,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:06,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:06,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:06,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:06,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524192183] [2021-12-06 18:57:06,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524192183] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:06,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:06,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 18:57:06,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384767735] [2021-12-06 18:57:06,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:06,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:57:06,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:06,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:57:06,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:57:06,634 INFO L87 Difference]: Start difference. First operand 942 states and 1220 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:09,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:09,316 INFO L93 Difference]: Finished difference Result 2534 states and 3486 transitions. [2021-12-06 18:57:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 18:57:09,316 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:57:09,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:09,318 INFO L225 Difference]: With dead ends: 2534 [2021-12-06 18:57:09,318 INFO L226 Difference]: Without dead ends: 2384 [2021-12-06 18:57:09,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 18:57:09,318 INFO L933 BasicCegarLoop]: 690 mSDtfsCounter, 6600 mSDsluCounter, 2943 mSDsCounter, 0 mSdLazyCounter, 2821 mSolverCounterSat, 894 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6600 SdHoareTripleChecker+Valid, 3633 SdHoareTripleChecker+Invalid, 3715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 894 IncrementalHoareTripleChecker+Valid, 2821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:09,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6600 Valid, 3633 Invalid, 3715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [894 Valid, 2821 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 18:57:09,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2021-12-06 18:57:09,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 946. [2021-12-06 18:57:09,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 924 states have (on average 1.3246753246753247) internal successors, (1224), 945 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:09,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1224 transitions. [2021-12-06 18:57:09,520 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1224 transitions. Word has length 98 [2021-12-06 18:57:09,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:09,520 INFO L470 AbstractCegarLoop]: Abstraction has 946 states and 1224 transitions. [2021-12-06 18:57:09,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:09,521 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1224 transitions. [2021-12-06 18:57:09,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:57:09,521 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:09,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:09,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-12-06 18:57:09,522 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:09,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:09,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1342903942, now seen corresponding path program 1 times [2021-12-06 18:57:09,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:09,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137103272] [2021-12-06 18:57:09,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:09,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:09,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:09,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:09,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137103272] [2021-12-06 18:57:09,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137103272] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:09,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:09,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:57:09,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96608937] [2021-12-06 18:57:09,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:09,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:57:09,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:09,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:57:09,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:57:09,595 INFO L87 Difference]: Start difference. First operand 946 states and 1224 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:10,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:10,934 INFO L93 Difference]: Finished difference Result 1786 states and 2401 transitions. [2021-12-06 18:57:10,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:57:10,935 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:57:10,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:10,936 INFO L225 Difference]: With dead ends: 1786 [2021-12-06 18:57:10,936 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:57:10,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:57:10,937 INFO L933 BasicCegarLoop]: 698 mSDtfsCounter, 3499 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 2085 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3499 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 2085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:10,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3499 Valid, 2875 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 2085 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:57:10,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:57:11,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 946. [2021-12-06 18:57:11,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 924 states have (on average 1.3235930735930737) internal successors, (1223), 945 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:11,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1223 transitions. [2021-12-06 18:57:11,136 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1223 transitions. Word has length 98 [2021-12-06 18:57:11,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:11,136 INFO L470 AbstractCegarLoop]: Abstraction has 946 states and 1223 transitions. [2021-12-06 18:57:11,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:11,137 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1223 transitions. [2021-12-06 18:57:11,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:57:11,138 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:11,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:11,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-12-06 18:57:11,138 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:11,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:11,138 INFO L85 PathProgramCache]: Analyzing trace with hash 311553357, now seen corresponding path program 1 times [2021-12-06 18:57:11,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:11,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779598694] [2021-12-06 18:57:11,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:11,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:11,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:11,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:11,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779598694] [2021-12-06 18:57:11,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779598694] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:11,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:11,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:57:11,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074077043] [2021-12-06 18:57:11,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:11,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:57:11,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:11,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:57:11,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:57:11,203 INFO L87 Difference]: Start difference. First operand 946 states and 1223 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:12,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:12,581 INFO L93 Difference]: Finished difference Result 1786 states and 2400 transitions. [2021-12-06 18:57:12,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:57:12,581 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-06 18:57:12,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:12,582 INFO L225 Difference]: With dead ends: 1786 [2021-12-06 18:57:12,582 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:57:12,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:57:12,583 INFO L933 BasicCegarLoop]: 689 mSDtfsCounter, 2906 mSDsluCounter, 2076 mSDsCounter, 0 mSdLazyCounter, 2074 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2906 SdHoareTripleChecker+Valid, 2765 SdHoareTripleChecker+Invalid, 2233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 2074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:12,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2906 Valid, 2765 Invalid, 2233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 2074 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:57:12,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:57:12,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 946. [2021-12-06 18:57:12,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 924 states have (on average 1.3225108225108224) internal successors, (1222), 945 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:12,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1222 transitions. [2021-12-06 18:57:12,785 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1222 transitions. Word has length 98 [2021-12-06 18:57:12,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:12,785 INFO L470 AbstractCegarLoop]: Abstraction has 946 states and 1222 transitions. [2021-12-06 18:57:12,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:12,785 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1222 transitions. [2021-12-06 18:57:12,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-06 18:57:12,786 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:12,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:12,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-12-06 18:57:12,786 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:12,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:12,787 INFO L85 PathProgramCache]: Analyzing trace with hash 2142673527, now seen corresponding path program 1 times [2021-12-06 18:57:12,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:12,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834595682] [2021-12-06 18:57:12,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:12,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:12,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:12,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:12,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834595682] [2021-12-06 18:57:12,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834595682] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:12,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:12,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:57:12,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983620657] [2021-12-06 18:57:12,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:12,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:57:12,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:12,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:57:12,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:57:12,847 INFO L87 Difference]: Start difference. First operand 946 states and 1222 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:14,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:14,152 INFO L93 Difference]: Finished difference Result 1794 states and 2407 transitions. [2021-12-06 18:57:14,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:57:14,152 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-06 18:57:14,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:14,154 INFO L225 Difference]: With dead ends: 1794 [2021-12-06 18:57:14,154 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:57:14,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:57:14,155 INFO L933 BasicCegarLoop]: 695 mSDtfsCounter, 2018 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 2067 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2018 SdHoareTripleChecker+Valid, 2778 SdHoareTripleChecker+Invalid, 2174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 2067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:14,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2018 Valid, 2778 Invalid, 2174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 2067 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:57:14,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:57:14,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 938. [2021-12-06 18:57:14,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 916 states have (on average 1.3231441048034935) internal successors, (1212), 937 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:14,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1212 transitions. [2021-12-06 18:57:14,360 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1212 transitions. Word has length 99 [2021-12-06 18:57:14,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:14,360 INFO L470 AbstractCegarLoop]: Abstraction has 938 states and 1212 transitions. [2021-12-06 18:57:14,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:14,360 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1212 transitions. [2021-12-06 18:57:14,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-06 18:57:14,361 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:14,361 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:14,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-12-06 18:57:14,362 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:14,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:14,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1955967073, now seen corresponding path program 1 times [2021-12-06 18:57:14,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:14,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543833462] [2021-12-06 18:57:14,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:14,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:14,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:14,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:14,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:14,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543833462] [2021-12-06 18:57:14,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543833462] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:14,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:14,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:57:14,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175938225] [2021-12-06 18:57:14,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:14,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:57:14,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:14,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:57:14,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:57:14,429 INFO L87 Difference]: Start difference. First operand 938 states and 1212 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:15,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:15,690 INFO L93 Difference]: Finished difference Result 1643 states and 2180 transitions. [2021-12-06 18:57:15,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:57:15,690 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-06 18:57:15,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:15,691 INFO L225 Difference]: With dead ends: 1643 [2021-12-06 18:57:15,691 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:57:15,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:57:15,692 INFO L933 BasicCegarLoop]: 698 mSDtfsCounter, 2880 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 2067 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2880 SdHoareTripleChecker+Valid, 2796 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 2067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:15,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2880 Valid, 2796 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 2067 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 18:57:15,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:57:15,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 930. [2021-12-06 18:57:15,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 908 states have (on average 1.3237885462555066) internal successors, (1202), 929 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:15,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1202 transitions. [2021-12-06 18:57:15,897 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1202 transitions. Word has length 99 [2021-12-06 18:57:15,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:15,897 INFO L470 AbstractCegarLoop]: Abstraction has 930 states and 1202 transitions. [2021-12-06 18:57:15,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:15,897 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1202 transitions. [2021-12-06 18:57:15,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-06 18:57:15,898 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:15,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:15,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-12-06 18:57:15,898 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:15,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:15,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1258494312, now seen corresponding path program 1 times [2021-12-06 18:57:15,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:15,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233024472] [2021-12-06 18:57:15,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:15,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:15,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:15,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:15,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233024472] [2021-12-06 18:57:15,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233024472] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:15,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:15,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:57:15,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830807113] [2021-12-06 18:57:15,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:15,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:57:15,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:15,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:57:15,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:57:15,963 INFO L87 Difference]: Start difference. First operand 930 states and 1202 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:17,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:17,275 INFO L93 Difference]: Finished difference Result 1643 states and 2178 transitions. [2021-12-06 18:57:17,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:57:17,276 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-06 18:57:17,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:17,277 INFO L225 Difference]: With dead ends: 1643 [2021-12-06 18:57:17,277 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:57:17,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:57:17,278 INFO L933 BasicCegarLoop]: 701 mSDtfsCounter, 3739 mSDsluCounter, 2107 mSDsCounter, 0 mSdLazyCounter, 2067 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3739 SdHoareTripleChecker+Valid, 2808 SdHoareTripleChecker+Invalid, 2279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 2067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:17,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3739 Valid, 2808 Invalid, 2279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 2067 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:57:17,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:57:17,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 922. [2021-12-06 18:57:17,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 900 states have (on average 1.3244444444444445) internal successors, (1192), 921 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:17,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1192 transitions. [2021-12-06 18:57:17,479 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1192 transitions. Word has length 99 [2021-12-06 18:57:17,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:17,479 INFO L470 AbstractCegarLoop]: Abstraction has 922 states and 1192 transitions. [2021-12-06 18:57:17,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:17,480 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1192 transitions. [2021-12-06 18:57:17,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-06 18:57:17,481 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:17,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:17,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-12-06 18:57:17,481 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:17,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:17,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1644132358, now seen corresponding path program 1 times [2021-12-06 18:57:17,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:17,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779454803] [2021-12-06 18:57:17,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:17,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:17,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:17,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:17,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779454803] [2021-12-06 18:57:17,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779454803] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:17,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:17,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:57:17,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477767976] [2021-12-06 18:57:17,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:17,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:57:17,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:17,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:57:17,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:57:17,541 INFO L87 Difference]: Start difference. First operand 922 states and 1192 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:18,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:18,848 INFO L93 Difference]: Finished difference Result 1788 states and 2394 transitions. [2021-12-06 18:57:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:57:18,848 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-06 18:57:18,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:18,850 INFO L225 Difference]: With dead ends: 1788 [2021-12-06 18:57:18,850 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:57:18,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:57:18,850 INFO L933 BasicCegarLoop]: 700 mSDtfsCounter, 2862 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2862 SdHoareTripleChecker+Valid, 2809 SdHoareTripleChecker+Invalid, 2235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:18,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2862 Valid, 2809 Invalid, 2235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:57:18,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:57:19,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 918. [2021-12-06 18:57:19,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3247767857142858) internal successors, (1187), 917 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:19,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1187 transitions. [2021-12-06 18:57:19,052 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1187 transitions. Word has length 99 [2021-12-06 18:57:19,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:19,052 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1187 transitions. [2021-12-06 18:57:19,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:19,052 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1187 transitions. [2021-12-06 18:57:19,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-06 18:57:19,053 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:19,053 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:19,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-12-06 18:57:19,053 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:19,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:19,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1171735156, now seen corresponding path program 1 times [2021-12-06 18:57:19,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:19,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134952669] [2021-12-06 18:57:19,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:19,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:19,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:19,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:19,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134952669] [2021-12-06 18:57:19,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134952669] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:19,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:19,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:57:19,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296388438] [2021-12-06 18:57:19,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:19,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:57:19,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:19,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:57:19,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:57:19,114 INFO L87 Difference]: Start difference. First operand 918 states and 1187 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:20,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:20,401 INFO L93 Difference]: Finished difference Result 1788 states and 2393 transitions. [2021-12-06 18:57:20,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:57:20,401 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-06 18:57:20,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:20,403 INFO L225 Difference]: With dead ends: 1788 [2021-12-06 18:57:20,403 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:57:20,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:57:20,403 INFO L933 BasicCegarLoop]: 703 mSDtfsCounter, 2855 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 2067 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2855 SdHoareTripleChecker+Valid, 2822 SdHoareTripleChecker+Invalid, 2226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 2067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:20,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2855 Valid, 2822 Invalid, 2226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 2067 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 18:57:20,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:57:20,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 914. [2021-12-06 18:57:20,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 892 states have (on average 1.3251121076233183) internal successors, (1182), 913 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:20,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1182 transitions. [2021-12-06 18:57:20,606 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1182 transitions. Word has length 99 [2021-12-06 18:57:20,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:20,606 INFO L470 AbstractCegarLoop]: Abstraction has 914 states and 1182 transitions. [2021-12-06 18:57:20,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:20,607 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1182 transitions. [2021-12-06 18:57:20,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-06 18:57:20,608 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:20,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:20,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-12-06 18:57:20,608 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:20,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:20,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1494310155, now seen corresponding path program 1 times [2021-12-06 18:57:20,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:20,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596683739] [2021-12-06 18:57:20,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:20,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:20,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:20,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:20,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596683739] [2021-12-06 18:57:20,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596683739] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:20,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:20,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:57:20,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33195397] [2021-12-06 18:57:20,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:20,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:57:20,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:20,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:57:20,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:57:20,669 INFO L87 Difference]: Start difference. First operand 914 states and 1182 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:21,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:21,998 INFO L93 Difference]: Finished difference Result 1788 states and 2392 transitions. [2021-12-06 18:57:21,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:57:21,999 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-06 18:57:21,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:22,000 INFO L225 Difference]: With dead ends: 1788 [2021-12-06 18:57:22,000 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:57:22,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:57:22,000 INFO L933 BasicCegarLoop]: 704 mSDtfsCounter, 2846 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 2067 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2846 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 2067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:22,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2846 Valid, 2826 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 2067 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:57:22,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:57:22,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 910. [2021-12-06 18:57:22,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3254504504504505) internal successors, (1177), 909 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:22,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1177 transitions. [2021-12-06 18:57:22,215 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1177 transitions. Word has length 99 [2021-12-06 18:57:22,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:22,215 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1177 transitions. [2021-12-06 18:57:22,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:22,215 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1177 transitions. [2021-12-06 18:57:22,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-06 18:57:22,216 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:22,216 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:22,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-12-06 18:57:22,216 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:22,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:22,216 INFO L85 PathProgramCache]: Analyzing trace with hash -23064076, now seen corresponding path program 1 times [2021-12-06 18:57:22,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:22,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477863172] [2021-12-06 18:57:22,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:22,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:22,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:22,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:22,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477863172] [2021-12-06 18:57:22,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477863172] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:22,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:22,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:57:22,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78922695] [2021-12-06 18:57:22,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:22,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:57:22,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:22,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:57:22,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:57:22,284 INFO L87 Difference]: Start difference. First operand 910 states and 1177 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:23,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:23,786 INFO L93 Difference]: Finished difference Result 1787 states and 2390 transitions. [2021-12-06 18:57:23,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:57:23,786 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-06 18:57:23,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:23,787 INFO L225 Difference]: With dead ends: 1787 [2021-12-06 18:57:23,787 INFO L226 Difference]: Without dead ends: 1638 [2021-12-06 18:57:23,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:57:23,788 INFO L933 BasicCegarLoop]: 694 mSDtfsCounter, 3463 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 2473 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3463 SdHoareTripleChecker+Valid, 3431 SdHoareTripleChecker+Invalid, 2648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 2473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:23,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3463 Valid, 3431 Invalid, 2648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 2473 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 18:57:23,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2021-12-06 18:57:23,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 910. [2021-12-06 18:57:23,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3243243243243243) internal successors, (1176), 909 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:23,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1176 transitions. [2021-12-06 18:57:23,991 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1176 transitions. Word has length 99 [2021-12-06 18:57:23,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:23,991 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1176 transitions. [2021-12-06 18:57:23,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:23,992 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1176 transitions. [2021-12-06 18:57:23,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-06 18:57:23,992 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:23,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:23,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-12-06 18:57:23,993 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:23,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:23,993 INFO L85 PathProgramCache]: Analyzing trace with hash -362080419, now seen corresponding path program 1 times [2021-12-06 18:57:23,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:23,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503461047] [2021-12-06 18:57:23,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:23,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:24,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:24,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:24,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503461047] [2021-12-06 18:57:24,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503461047] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:24,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:24,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-12-06 18:57:24,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484887002] [2021-12-06 18:57:24,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:24,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-06 18:57:24,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:24,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-06 18:57:24,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-12-06 18:57:24,342 INFO L87 Difference]: Start difference. First operand 910 states and 1176 transitions. Second operand has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:26,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:26,968 INFO L93 Difference]: Finished difference Result 2540 states and 3429 transitions. [2021-12-06 18:57:26,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-06 18:57:26,969 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-12-06 18:57:26,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:26,970 INFO L225 Difference]: With dead ends: 2540 [2021-12-06 18:57:26,970 INFO L226 Difference]: Without dead ends: 2288 [2021-12-06 18:57:26,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=275, Invalid=985, Unknown=0, NotChecked=0, Total=1260 [2021-12-06 18:57:26,971 INFO L933 BasicCegarLoop]: 1564 mSDtfsCounter, 4860 mSDsluCounter, 13035 mSDsCounter, 0 mSdLazyCounter, 2501 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4860 SdHoareTripleChecker+Valid, 14599 SdHoareTripleChecker+Invalid, 2580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:26,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4860 Valid, 14599 Invalid, 2580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2501 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 18:57:26,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2288 states. [2021-12-06 18:57:27,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2288 to 864. [2021-12-06 18:57:27,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 843 states have (on average 1.3202846975088969) internal successors, (1113), 863 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:27,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1113 transitions. [2021-12-06 18:57:27,187 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1113 transitions. Word has length 100 [2021-12-06 18:57:27,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:27,188 INFO L470 AbstractCegarLoop]: Abstraction has 864 states and 1113 transitions. [2021-12-06 18:57:27,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:27,188 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1113 transitions. [2021-12-06 18:57:27,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-06 18:57:27,189 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:27,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:27,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-12-06 18:57:27,189 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:27,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:27,189 INFO L85 PathProgramCache]: Analyzing trace with hash 171611640, now seen corresponding path program 1 times [2021-12-06 18:57:27,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:27,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39271813] [2021-12-06 18:57:27,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:27,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:27,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:27,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:27,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39271813] [2021-12-06 18:57:27,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39271813] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:27,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:27,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:57:27,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292204995] [2021-12-06 18:57:27,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:27,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:57:27,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:27,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:57:27,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:57:27,405 INFO L87 Difference]: Start difference. First operand 864 states and 1113 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:28,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:28,953 INFO L93 Difference]: Finished difference Result 1420 states and 1855 transitions. [2021-12-06 18:57:28,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 18:57:28,954 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-12-06 18:57:28,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:28,955 INFO L225 Difference]: With dead ends: 1420 [2021-12-06 18:57:28,955 INFO L226 Difference]: Without dead ends: 1266 [2021-12-06 18:57:28,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:57:28,955 INFO L933 BasicCegarLoop]: 671 mSDtfsCounter, 3272 mSDsluCounter, 3604 mSDsCounter, 0 mSdLazyCounter, 2166 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3272 SdHoareTripleChecker+Valid, 4275 SdHoareTripleChecker+Invalid, 2344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:28,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3272 Valid, 4275 Invalid, 2344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2166 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-06 18:57:28,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2021-12-06 18:57:29,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 854. [2021-12-06 18:57:29,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 834 states have (on average 1.316546762589928) internal successors, (1098), 853 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:29,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1098 transitions. [2021-12-06 18:57:29,178 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1098 transitions. Word has length 100 [2021-12-06 18:57:29,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:29,178 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1098 transitions. [2021-12-06 18:57:29,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:29,178 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1098 transitions. [2021-12-06 18:57:29,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-06 18:57:29,179 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:29,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:29,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-12-06 18:57:29,180 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:29,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:29,180 INFO L85 PathProgramCache]: Analyzing trace with hash -127286155, now seen corresponding path program 1 times [2021-12-06 18:57:29,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:29,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563294828] [2021-12-06 18:57:29,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:29,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:29,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:29,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:29,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563294828] [2021-12-06 18:57:29,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563294828] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:29,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:29,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-06 18:57:29,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475941868] [2021-12-06 18:57:29,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:29,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:57:29,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:29,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:57:29,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:57:29,418 INFO L87 Difference]: Start difference. First operand 854 states and 1098 transitions. Second operand has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:32,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:32,010 INFO L93 Difference]: Finished difference Result 3037 states and 4152 transitions. [2021-12-06 18:57:32,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-06 18:57:32,010 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-12-06 18:57:32,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:32,012 INFO L225 Difference]: With dead ends: 3037 [2021-12-06 18:57:32,012 INFO L226 Difference]: Without dead ends: 2835 [2021-12-06 18:57:32,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-12-06 18:57:32,013 INFO L933 BasicCegarLoop]: 1783 mSDtfsCounter, 4169 mSDsluCounter, 10452 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4169 SdHoareTripleChecker+Valid, 12235 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:32,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4169 Valid, 12235 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:57:32,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2835 states. [2021-12-06 18:57:32,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2835 to 800. [2021-12-06 18:57:32,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 783 states have (on average 1.3116219667943805) internal successors, (1027), 799 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:32,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1027 transitions. [2021-12-06 18:57:32,257 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1027 transitions. Word has length 100 [2021-12-06 18:57:32,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:32,257 INFO L470 AbstractCegarLoop]: Abstraction has 800 states and 1027 transitions. [2021-12-06 18:57:32,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:32,257 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1027 transitions. [2021-12-06 18:57:32,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-06 18:57:32,258 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:32,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:32,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-12-06 18:57:32,258 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:32,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:32,259 INFO L85 PathProgramCache]: Analyzing trace with hash -798771389, now seen corresponding path program 1 times [2021-12-06 18:57:32,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:32,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438430441] [2021-12-06 18:57:32,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:32,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:32,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:32,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:32,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438430441] [2021-12-06 18:57:32,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438430441] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:32,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:32,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:57:32,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726338584] [2021-12-06 18:57:32,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:32,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:57:32,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:32,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:57:32,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:57:32,438 INFO L87 Difference]: Start difference. First operand 800 states and 1027 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:33,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:33,423 INFO L93 Difference]: Finished difference Result 1465 states and 1976 transitions. [2021-12-06 18:57:33,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 18:57:33,424 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-12-06 18:57:33,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:33,425 INFO L225 Difference]: With dead ends: 1465 [2021-12-06 18:57:33,425 INFO L226 Difference]: Without dead ends: 1117 [2021-12-06 18:57:33,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2021-12-06 18:57:33,425 INFO L933 BasicCegarLoop]: 847 mSDtfsCounter, 3329 mSDsluCounter, 3850 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3329 SdHoareTripleChecker+Valid, 4697 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:33,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3329 Valid, 4697 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 18:57:33,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2021-12-06 18:57:33,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 600. [2021-12-06 18:57:33,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 588 states have (on average 1.3112244897959184) internal successors, (771), 599 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:33,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 771 transitions. [2021-12-06 18:57:33,630 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 771 transitions. Word has length 100 [2021-12-06 18:57:33,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:33,630 INFO L470 AbstractCegarLoop]: Abstraction has 600 states and 771 transitions. [2021-12-06 18:57:33,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:33,631 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 771 transitions. [2021-12-06 18:57:33,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-06 18:57:33,631 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:33,631 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:33,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-12-06 18:57:33,632 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:33,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:33,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1967013514, now seen corresponding path program 1 times [2021-12-06 18:57:33,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:33,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793261878] [2021-12-06 18:57:33,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:33,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:33,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:33,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:33,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793261878] [2021-12-06 18:57:33,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793261878] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:33,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:33,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:57:33,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382588747] [2021-12-06 18:57:33,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:33,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:57:33,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:33,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:57:33,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:57:33,821 INFO L87 Difference]: Start difference. First operand 600 states and 771 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:34,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:34,945 INFO L93 Difference]: Finished difference Result 1058 states and 1397 transitions. [2021-12-06 18:57:34,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:57:34,945 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-12-06 18:57:34,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:34,946 INFO L225 Difference]: With dead ends: 1058 [2021-12-06 18:57:34,946 INFO L226 Difference]: Without dead ends: 906 [2021-12-06 18:57:34,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-06 18:57:34,947 INFO L933 BasicCegarLoop]: 499 mSDtfsCounter, 2655 mSDsluCounter, 1937 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2655 SdHoareTripleChecker+Valid, 2436 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:34,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2655 Valid, 2436 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 18:57:34,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2021-12-06 18:57:35,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 596. [2021-12-06 18:57:35,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 585 states have (on average 1.3094017094017094) internal successors, (766), 595 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:35,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 766 transitions. [2021-12-06 18:57:35,154 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 766 transitions. Word has length 100 [2021-12-06 18:57:35,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:35,154 INFO L470 AbstractCegarLoop]: Abstraction has 596 states and 766 transitions. [2021-12-06 18:57:35,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:35,154 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 766 transitions. [2021-12-06 18:57:35,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-06 18:57:35,155 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:35,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:35,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-12-06 18:57:35,155 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:35,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:35,155 INFO L85 PathProgramCache]: Analyzing trace with hash 186496366, now seen corresponding path program 1 times [2021-12-06 18:57:35,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:35,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782222448] [2021-12-06 18:57:35,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:35,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:35,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:35,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:35,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782222448] [2021-12-06 18:57:35,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782222448] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:35,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:35,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-12-06 18:57:35,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207958219] [2021-12-06 18:57:35,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:35,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-06 18:57:35,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:35,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-06 18:57:35,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-12-06 18:57:35,410 INFO L87 Difference]: Start difference. First operand 596 states and 766 transitions. Second operand has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 15 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:36,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:36,607 INFO L93 Difference]: Finished difference Result 1195 states and 1608 transitions. [2021-12-06 18:57:36,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-06 18:57:36,608 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 15 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-12-06 18:57:36,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:36,608 INFO L225 Difference]: With dead ends: 1195 [2021-12-06 18:57:36,608 INFO L226 Difference]: Without dead ends: 834 [2021-12-06 18:57:36,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2021-12-06 18:57:36,609 INFO L933 BasicCegarLoop]: 576 mSDtfsCounter, 2608 mSDsluCounter, 3097 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2608 SdHoareTripleChecker+Valid, 3673 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:36,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2608 Valid, 3673 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 18:57:36,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2021-12-06 18:57:36,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 499. [2021-12-06 18:57:36,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 489 states have (on average 1.3047034764826175) internal successors, (638), 498 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:36,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 638 transitions. [2021-12-06 18:57:36,797 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 638 transitions. Word has length 100 [2021-12-06 18:57:36,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:36,797 INFO L470 AbstractCegarLoop]: Abstraction has 499 states and 638 transitions. [2021-12-06 18:57:36,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 15 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:36,797 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 638 transitions. [2021-12-06 18:57:36,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-06 18:57:36,798 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:36,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:36,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-12-06 18:57:36,798 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:36,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:36,799 INFO L85 PathProgramCache]: Analyzing trace with hash -543164459, now seen corresponding path program 1 times [2021-12-06 18:57:36,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:36,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381594238] [2021-12-06 18:57:36,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:36,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:36,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:36,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:36,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381594238] [2021-12-06 18:57:36,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381594238] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:36,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:36,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:57:36,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331619073] [2021-12-06 18:57:36,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:36,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:57:36,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:36,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:57:36,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:57:36,978 INFO L87 Difference]: Start difference. First operand 499 states and 638 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:37,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:37,903 INFO L93 Difference]: Finished difference Result 912 states and 1210 transitions. [2021-12-06 18:57:37,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:57:37,904 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-12-06 18:57:37,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:37,904 INFO L225 Difference]: With dead ends: 912 [2021-12-06 18:57:37,904 INFO L226 Difference]: Without dead ends: 758 [2021-12-06 18:57:37,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-06 18:57:37,905 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 2425 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2425 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:37,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2425 Valid, 1797 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 18:57:37,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2021-12-06 18:57:38,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 487. [2021-12-06 18:57:38,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 478 states have (on average 1.299163179916318) internal successors, (621), 486 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:38,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 621 transitions. [2021-12-06 18:57:38,093 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 621 transitions. Word has length 101 [2021-12-06 18:57:38,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:38,093 INFO L470 AbstractCegarLoop]: Abstraction has 487 states and 621 transitions. [2021-12-06 18:57:38,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:38,093 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 621 transitions. [2021-12-06 18:57:38,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-06 18:57:38,094 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:38,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:38,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-12-06 18:57:38,094 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:38,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:38,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1971285689, now seen corresponding path program 1 times [2021-12-06 18:57:38,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:38,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295685080] [2021-12-06 18:57:38,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:38,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:38,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:38,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:38,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295685080] [2021-12-06 18:57:38,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295685080] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:38,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:38,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:57:38,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002434762] [2021-12-06 18:57:38,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:38,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:57:38,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:38,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:57:38,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:57:38,241 INFO L87 Difference]: Start difference. First operand 487 states and 621 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:38,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:38,979 INFO L93 Difference]: Finished difference Result 910 states and 1212 transitions. [2021-12-06 18:57:38,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 18:57:38,980 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-12-06 18:57:38,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:38,980 INFO L225 Difference]: With dead ends: 910 [2021-12-06 18:57:38,980 INFO L226 Difference]: Without dead ends: 742 [2021-12-06 18:57:38,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2021-12-06 18:57:38,981 INFO L933 BasicCegarLoop]: 575 mSDtfsCounter, 1277 mSDsluCounter, 2434 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1277 SdHoareTripleChecker+Valid, 3009 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:38,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1277 Valid, 3009 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 18:57:38,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2021-12-06 18:57:39,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 457. [2021-12-06 18:57:39,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 449 states have (on average 1.2984409799554566) internal successors, (583), 456 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:39,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 583 transitions. [2021-12-06 18:57:39,166 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 583 transitions. Word has length 101 [2021-12-06 18:57:39,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:39,166 INFO L470 AbstractCegarLoop]: Abstraction has 457 states and 583 transitions. [2021-12-06 18:57:39,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:39,167 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 583 transitions. [2021-12-06 18:57:39,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-06 18:57:39,167 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:39,167 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:39,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-12-06 18:57:39,167 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:39,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:39,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1740504427, now seen corresponding path program 1 times [2021-12-06 18:57:39,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:39,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91361608] [2021-12-06 18:57:39,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:39,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:39,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:39,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:39,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91361608] [2021-12-06 18:57:39,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91361608] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:39,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:39,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:57:39,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802634996] [2021-12-06 18:57:39,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:39,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:57:39,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:39,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:57:39,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:57:39,238 INFO L87 Difference]: Start difference. First operand 457 states and 583 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:40,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:40,007 INFO L93 Difference]: Finished difference Result 711 states and 921 transitions. [2021-12-06 18:57:40,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 18:57:40,008 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-12-06 18:57:40,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:40,009 INFO L225 Difference]: With dead ends: 711 [2021-12-06 18:57:40,009 INFO L226 Difference]: Without dead ends: 704 [2021-12-06 18:57:40,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2021-12-06 18:57:40,009 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 1836 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1836 SdHoareTripleChecker+Valid, 1428 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:40,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1836 Valid, 1428 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 18:57:40,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2021-12-06 18:57:40,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 457. [2021-12-06 18:57:40,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 449 states have (on average 1.2962138084632517) internal successors, (582), 456 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:40,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 582 transitions. [2021-12-06 18:57:40,199 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 582 transitions. Word has length 101 [2021-12-06 18:57:40,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:40,199 INFO L470 AbstractCegarLoop]: Abstraction has 457 states and 582 transitions. [2021-12-06 18:57:40,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:40,199 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 582 transitions. [2021-12-06 18:57:40,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-06 18:57:40,200 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:40,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:40,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-12-06 18:57:40,200 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:40,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:40,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1904507925, now seen corresponding path program 1 times [2021-12-06 18:57:40,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:40,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506308052] [2021-12-06 18:57:40,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:40,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:40,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:40,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:40,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506308052] [2021-12-06 18:57:40,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506308052] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:40,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:40,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 18:57:40,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501850051] [2021-12-06 18:57:40,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:40,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:57:40,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:40,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:57:40,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:57:40,306 INFO L87 Difference]: Start difference. First operand 457 states and 582 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:43,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:43,137 INFO L93 Difference]: Finished difference Result 2134 states and 2995 transitions. [2021-12-06 18:57:43,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 18:57:43,138 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-12-06 18:57:43,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:43,139 INFO L225 Difference]: With dead ends: 2134 [2021-12-06 18:57:43,139 INFO L226 Difference]: Without dead ends: 1956 [2021-12-06 18:57:43,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 18:57:43,140 INFO L933 BasicCegarLoop]: 480 mSDtfsCounter, 4555 mSDsluCounter, 2057 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4555 SdHoareTripleChecker+Valid, 2537 SdHoareTripleChecker+Invalid, 2208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:43,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4555 Valid, 2537 Invalid, 2208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 18:57:43,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2021-12-06 18:57:43,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 465. [2021-12-06 18:57:43,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 457 states have (on average 1.2910284463894968) internal successors, (590), 464 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:43,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 590 transitions. [2021-12-06 18:57:43,339 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 590 transitions. Word has length 101 [2021-12-06 18:57:43,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:43,339 INFO L470 AbstractCegarLoop]: Abstraction has 465 states and 590 transitions. [2021-12-06 18:57:43,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:43,339 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 590 transitions. [2021-12-06 18:57:43,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-06 18:57:43,339 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:43,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:43,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-12-06 18:57:43,340 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:43,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:43,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1612960383, now seen corresponding path program 1 times [2021-12-06 18:57:43,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:43,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282132795] [2021-12-06 18:57:43,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:43,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:43,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:43,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:43,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282132795] [2021-12-06 18:57:43,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282132795] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:43,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:43,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-06 18:57:43,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428752268] [2021-12-06 18:57:43,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:43,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:57:43,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:43,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:57:43,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:57:43,530 INFO L87 Difference]: Start difference. First operand 465 states and 590 transitions. Second operand has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:44,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:44,832 INFO L93 Difference]: Finished difference Result 1305 states and 1757 transitions. [2021-12-06 18:57:44,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 18:57:44,833 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-12-06 18:57:44,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:44,834 INFO L225 Difference]: With dead ends: 1305 [2021-12-06 18:57:44,834 INFO L226 Difference]: Without dead ends: 1146 [2021-12-06 18:57:44,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2021-12-06 18:57:44,835 INFO L933 BasicCegarLoop]: 511 mSDtfsCounter, 2448 mSDsluCounter, 3375 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2448 SdHoareTripleChecker+Valid, 3886 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:44,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2448 Valid, 3886 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 18:57:44,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2021-12-06 18:57:45,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 454. [2021-12-06 18:57:45,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 447 states have (on average 1.2885906040268456) internal successors, (576), 453 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:45,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 576 transitions. [2021-12-06 18:57:45,041 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 576 transitions. Word has length 101 [2021-12-06 18:57:45,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:45,041 INFO L470 AbstractCegarLoop]: Abstraction has 454 states and 576 transitions. [2021-12-06 18:57:45,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:45,041 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 576 transitions. [2021-12-06 18:57:45,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-06 18:57:45,041 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:45,042 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:45,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-12-06 18:57:45,042 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:45,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:45,042 INFO L85 PathProgramCache]: Analyzing trace with hash -2060658306, now seen corresponding path program 1 times [2021-12-06 18:57:45,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:45,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764168151] [2021-12-06 18:57:45,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:45,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:45,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:45,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:45,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764168151] [2021-12-06 18:57:45,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764168151] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:45,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:45,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-06 18:57:45,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293857252] [2021-12-06 18:57:45,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:45,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:57:45,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:45,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:57:45,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:57:45,261 INFO L87 Difference]: Start difference. First operand 454 states and 576 transitions. Second operand has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:46,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:46,772 INFO L93 Difference]: Finished difference Result 1310 states and 1765 transitions. [2021-12-06 18:57:46,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 18:57:46,773 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-12-06 18:57:46,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:46,774 INFO L225 Difference]: With dead ends: 1310 [2021-12-06 18:57:46,774 INFO L226 Difference]: Without dead ends: 1138 [2021-12-06 18:57:46,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2021-12-06 18:57:46,774 INFO L933 BasicCegarLoop]: 683 mSDtfsCounter, 1935 mSDsluCounter, 3886 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1935 SdHoareTripleChecker+Valid, 4569 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:46,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1935 Valid, 4569 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 18:57:46,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2021-12-06 18:57:46,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 430. [2021-12-06 18:57:46,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 424 states have (on average 1.2853773584905661) internal successors, (545), 429 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:46,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 545 transitions. [2021-12-06 18:57:46,977 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 545 transitions. Word has length 101 [2021-12-06 18:57:46,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:46,977 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 545 transitions. [2021-12-06 18:57:46,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:46,977 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 545 transitions. [2021-12-06 18:57:46,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-06 18:57:46,977 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:46,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:46,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-12-06 18:57:46,978 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:46,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:46,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1370136807, now seen corresponding path program 1 times [2021-12-06 18:57:46,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:46,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889591637] [2021-12-06 18:57:46,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:46,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:47,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:47,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:47,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889591637] [2021-12-06 18:57:47,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889591637] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:47,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:47,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-06 18:57:47,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439218809] [2021-12-06 18:57:47,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:47,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:57:47,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:47,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:57:47,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:57:47,156 INFO L87 Difference]: Start difference. First operand 430 states and 545 transitions. Second operand has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:49,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:49,480 INFO L93 Difference]: Finished difference Result 2138 states and 3007 transitions. [2021-12-06 18:57:49,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-06 18:57:49,481 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-12-06 18:57:49,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:49,482 INFO L225 Difference]: With dead ends: 2138 [2021-12-06 18:57:49,482 INFO L226 Difference]: Without dead ends: 1983 [2021-12-06 18:57:49,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-12-06 18:57:49,483 INFO L933 BasicCegarLoop]: 865 mSDtfsCounter, 2323 mSDsluCounter, 5726 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2323 SdHoareTripleChecker+Valid, 6591 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:49,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2323 Valid, 6591 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 18:57:49,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2021-12-06 18:57:49,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 423. [2021-12-06 18:57:49,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 417 states have (on average 1.2829736211031175) internal successors, (535), 422 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:49,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 535 transitions. [2021-12-06 18:57:49,694 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 535 transitions. Word has length 101 [2021-12-06 18:57:49,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:49,694 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 535 transitions. [2021-12-06 18:57:49,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:49,694 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 535 transitions. [2021-12-06 18:57:49,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-06 18:57:49,695 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:49,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:49,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-12-06 18:57:49,695 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:49,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:49,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1781714603, now seen corresponding path program 1 times [2021-12-06 18:57:49,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:49,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754320755] [2021-12-06 18:57:49,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:49,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:49,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:49,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:49,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:49,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754320755] [2021-12-06 18:57:49,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754320755] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:49,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:49,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:57:49,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306303747] [2021-12-06 18:57:49,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:49,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:57:49,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:49,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:57:49,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:57:49,867 INFO L87 Difference]: Start difference. First operand 423 states and 535 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:51,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:51,451 INFO L93 Difference]: Finished difference Result 1404 states and 1959 transitions. [2021-12-06 18:57:51,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:57:51,452 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-12-06 18:57:51,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:51,453 INFO L225 Difference]: With dead ends: 1404 [2021-12-06 18:57:51,453 INFO L226 Difference]: Without dead ends: 1255 [2021-12-06 18:57:51,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-06 18:57:51,453 INFO L933 BasicCegarLoop]: 755 mSDtfsCounter, 2392 mSDsluCounter, 3445 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2392 SdHoareTripleChecker+Valid, 4200 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:51,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2392 Valid, 4200 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 18:57:51,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2021-12-06 18:57:51,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 422. [2021-12-06 18:57:51,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 416 states have (on average 1.28125) internal successors, (533), 421 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:51,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 533 transitions. [2021-12-06 18:57:51,660 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 533 transitions. Word has length 101 [2021-12-06 18:57:51,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:51,660 INFO L470 AbstractCegarLoop]: Abstraction has 422 states and 533 transitions. [2021-12-06 18:57:51,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:51,660 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 533 transitions. [2021-12-06 18:57:51,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-06 18:57:51,661 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:51,661 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:51,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-12-06 18:57:51,661 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:51,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:51,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1981178433, now seen corresponding path program 1 times [2021-12-06 18:57:51,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:51,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68064777] [2021-12-06 18:57:51,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:51,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:51,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:51,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:51,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68064777] [2021-12-06 18:57:51,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68064777] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:51,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:51,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 18:57:51,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357160081] [2021-12-06 18:57:51,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:51,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 18:57:51,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:51,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 18:57:51,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-12-06 18:57:51,803 INFO L87 Difference]: Start difference. First operand 422 states and 533 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:52,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:52,797 INFO L93 Difference]: Finished difference Result 1102 states and 1498 transitions. [2021-12-06 18:57:52,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 18:57:52,797 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-12-06 18:57:52,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:52,798 INFO L225 Difference]: With dead ends: 1102 [2021-12-06 18:57:52,798 INFO L226 Difference]: Without dead ends: 877 [2021-12-06 18:57:52,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2021-12-06 18:57:52,799 INFO L933 BasicCegarLoop]: 433 mSDtfsCounter, 1819 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1819 SdHoareTripleChecker+Valid, 1613 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:52,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1819 Valid, 1613 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 18:57:52,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2021-12-06 18:57:52,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 345. [2021-12-06 18:57:52,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 341 states have (on average 1.2873900293255132) internal successors, (439), 344 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:52,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 439 transitions. [2021-12-06 18:57:52,989 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 439 transitions. Word has length 101 [2021-12-06 18:57:52,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:52,989 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 439 transitions. [2021-12-06 18:57:52,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:52,989 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 439 transitions. [2021-12-06 18:57:52,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-06 18:57:52,989 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:52,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:52,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-12-06 18:57:52,990 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:52,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:52,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1057282067, now seen corresponding path program 1 times [2021-12-06 18:57:52,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:52,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035538840] [2021-12-06 18:57:52,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:52,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:53,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:53,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:53,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035538840] [2021-12-06 18:57:53,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035538840] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:53,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:53,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 18:57:53,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791678386] [2021-12-06 18:57:53,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:53,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:57:53,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:53,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:57:53,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:57:53,104 INFO L87 Difference]: Start difference. First operand 345 states and 439 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 11 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:54,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:54,539 INFO L93 Difference]: Finished difference Result 929 states and 1267 transitions. [2021-12-06 18:57:54,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-06 18:57:54,539 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 11 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-12-06 18:57:54,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:54,540 INFO L225 Difference]: With dead ends: 929 [2021-12-06 18:57:54,540 INFO L226 Difference]: Without dead ends: 922 [2021-12-06 18:57:54,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2021-12-06 18:57:54,541 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 3471 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3471 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:54,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3471 Valid, 952 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 18:57:54,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2021-12-06 18:57:54,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 349. [2021-12-06 18:57:54,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 345 states have (on average 1.2840579710144928) internal successors, (443), 348 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:54,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 443 transitions. [2021-12-06 18:57:54,742 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 443 transitions. Word has length 102 [2021-12-06 18:57:54,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:54,742 INFO L470 AbstractCegarLoop]: Abstraction has 349 states and 443 transitions. [2021-12-06 18:57:54,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 11 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:54,742 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 443 transitions. [2021-12-06 18:57:54,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-06 18:57:54,743 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:54,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:54,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-12-06 18:57:54,743 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:54,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:54,743 INFO L85 PathProgramCache]: Analyzing trace with hash 690209749, now seen corresponding path program 1 times [2021-12-06 18:57:54,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:54,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244329752] [2021-12-06 18:57:54,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:54,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:54,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:54,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:54,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244329752] [2021-12-06 18:57:54,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244329752] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:54,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:54,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:57:54,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954866720] [2021-12-06 18:57:54,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:54,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 18:57:54,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:54,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 18:57:54,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:57:54,804 INFO L87 Difference]: Start difference. First operand 349 states and 443 transitions. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:55,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:55,443 INFO L93 Difference]: Finished difference Result 727 states and 979 transitions. [2021-12-06 18:57:55,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 18:57:55,443 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-12-06 18:57:55,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:55,444 INFO L225 Difference]: With dead ends: 727 [2021-12-06 18:57:55,444 INFO L226 Difference]: Without dead ends: 549 [2021-12-06 18:57:55,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2021-12-06 18:57:55,444 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 979 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:55,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [979 Valid, 838 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 18:57:55,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2021-12-06 18:57:55,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 341. [2021-12-06 18:57:55,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 337 states have (on average 1.28486646884273) internal successors, (433), 340 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:55,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 433 transitions. [2021-12-06 18:57:55,636 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 433 transitions. Word has length 102 [2021-12-06 18:57:55,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:55,636 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 433 transitions. [2021-12-06 18:57:55,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:55,636 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 433 transitions. [2021-12-06 18:57:55,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-06 18:57:55,637 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:55,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:55,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-12-06 18:57:55,637 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:55,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:55,637 INFO L85 PathProgramCache]: Analyzing trace with hash 348199129, now seen corresponding path program 1 times [2021-12-06 18:57:55,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:55,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914483966] [2021-12-06 18:57:55,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:55,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:55,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:55,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:55,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914483966] [2021-12-06 18:57:55,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914483966] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:55,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:55,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:57:55,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678496776] [2021-12-06 18:57:55,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:55,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:57:55,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:55,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:57:55,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:57:55,763 INFO L87 Difference]: Start difference. First operand 341 states and 433 transitions. Second operand has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:56,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:56,877 INFO L93 Difference]: Finished difference Result 566 states and 738 transitions. [2021-12-06 18:57:56,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-06 18:57:56,878 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-12-06 18:57:56,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:56,878 INFO L225 Difference]: With dead ends: 566 [2021-12-06 18:57:56,878 INFO L226 Difference]: Without dead ends: 559 [2021-12-06 18:57:56,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=188, Invalid=624, Unknown=0, NotChecked=0, Total=812 [2021-12-06 18:57:56,879 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 831 mSDsluCounter, 1738 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:56,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [831 Valid, 1986 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1613 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 18:57:56,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2021-12-06 18:57:57,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 337. [2021-12-06 18:57:57,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 333 states have (on average 1.2852852852852852) internal successors, (428), 336 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:57,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 428 transitions. [2021-12-06 18:57:57,066 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 428 transitions. Word has length 103 [2021-12-06 18:57:57,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:57,066 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 428 transitions. [2021-12-06 18:57:57,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:57,066 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 428 transitions. [2021-12-06 18:57:57,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-06 18:57:57,067 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:57,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:57,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-12-06 18:57:57,067 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:57,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:57,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1191441136, now seen corresponding path program 1 times [2021-12-06 18:57:57,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:57,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645277863] [2021-12-06 18:57:57,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:57,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:57,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:57,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:57,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645277863] [2021-12-06 18:57:57,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645277863] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:57,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:57,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:57:57,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761456675] [2021-12-06 18:57:57,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:57,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:57:57,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:57,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:57:57,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:57:57,269 INFO L87 Difference]: Start difference. First operand 337 states and 428 transitions. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:58,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:57:58,458 INFO L93 Difference]: Finished difference Result 849 states and 1162 transitions. [2021-12-06 18:57:58,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:57:58,458 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-12-06 18:57:58,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:57:58,459 INFO L225 Difference]: With dead ends: 849 [2021-12-06 18:57:58,459 INFO L226 Difference]: Without dead ends: 843 [2021-12-06 18:57:58,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-06 18:57:58,460 INFO L933 BasicCegarLoop]: 560 mSDtfsCounter, 1257 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 18:57:58,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1257 Valid, 2801 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 18:57:58,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2021-12-06 18:57:58,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 331. [2021-12-06 18:57:58,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 328 states have (on average 1.2835365853658536) internal successors, (421), 330 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:58,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 421 transitions. [2021-12-06 18:57:58,649 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 421 transitions. Word has length 103 [2021-12-06 18:57:58,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:57:58,649 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 421 transitions. [2021-12-06 18:57:58,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:57:58,650 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 421 transitions. [2021-12-06 18:57:58,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-06 18:57:58,650 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:57:58,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:57:58,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-12-06 18:57:58,650 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:57:58,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:57:58,650 INFO L85 PathProgramCache]: Analyzing trace with hash -996428293, now seen corresponding path program 1 times [2021-12-06 18:57:58,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:57:58,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656290794] [2021-12-06 18:57:58,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:57:58,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:57:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:57:59,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:57:59,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:57:59,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656290794] [2021-12-06 18:57:59,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656290794] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:57:59,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:57:59,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-12-06 18:57:59,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121529826] [2021-12-06 18:57:59,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:57:59,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-12-06 18:57:59,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:57:59,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-12-06 18:57:59,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=865, Unknown=0, NotChecked=0, Total=930 [2021-12-06 18:57:59,391 INFO L87 Difference]: Start difference. First operand 331 states and 421 transitions. Second operand has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:02,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:58:02,355 INFO L93 Difference]: Finished difference Result 382 states and 476 transitions. [2021-12-06 18:58:02,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-12-06 18:58:02,356 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-12-06 18:58:02,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:58:02,356 INFO L225 Difference]: With dead ends: 382 [2021-12-06 18:58:02,356 INFO L226 Difference]: Without dead ends: 374 [2021-12-06 18:58:02,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=469, Invalid=2953, Unknown=0, NotChecked=0, Total=3422 [2021-12-06 18:58:02,357 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 656 mSDsluCounter, 4328 mSDsCounter, 0 mSdLazyCounter, 2709 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 4532 SdHoareTripleChecker+Invalid, 2751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 18:58:02,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [656 Valid, 4532 Invalid, 2751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2709 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 18:58:02,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2021-12-06 18:58:02,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 350. [2021-12-06 18:58:02,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 347 states have (on average 1.2795389048991355) internal successors, (444), 349 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:02,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 444 transitions. [2021-12-06 18:58:02,549 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 444 transitions. Word has length 103 [2021-12-06 18:58:02,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:58:02,549 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 444 transitions. [2021-12-06 18:58:02,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 31 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:02,549 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 444 transitions. [2021-12-06 18:58:02,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-06 18:58:02,550 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:58:02,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:58:02,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-12-06 18:58:02,550 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:58:02,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:58:02,550 INFO L85 PathProgramCache]: Analyzing trace with hash -443112637, now seen corresponding path program 1 times [2021-12-06 18:58:02,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:58:02,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415377783] [2021-12-06 18:58:02,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:58:02,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:58:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:58:02,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:58:02,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:58:02,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415377783] [2021-12-06 18:58:02,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415377783] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:58:02,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:58:02,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:58:02,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501503655] [2021-12-06 18:58:02,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:58:02,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:58:02,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:58:02,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:58:02,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:58:02,735 INFO L87 Difference]: Start difference. First operand 350 states and 444 transitions. Second operand has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:03,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:58:03,924 INFO L93 Difference]: Finished difference Result 982 states and 1324 transitions. [2021-12-06 18:58:03,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:58:03,924 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-12-06 18:58:03,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:58:03,925 INFO L225 Difference]: With dead ends: 982 [2021-12-06 18:58:03,925 INFO L226 Difference]: Without dead ends: 958 [2021-12-06 18:58:03,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2021-12-06 18:58:03,926 INFO L933 BasicCegarLoop]: 634 mSDtfsCounter, 1245 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 3648 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 18:58:03,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1245 Valid, 3648 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 18:58:03,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2021-12-06 18:58:04,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 326. [2021-12-06 18:58:04,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 324 states have (on average 1.287037037037037) internal successors, (417), 325 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:04,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 417 transitions. [2021-12-06 18:58:04,120 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 417 transitions. Word has length 104 [2021-12-06 18:58:04,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:58:04,120 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 417 transitions. [2021-12-06 18:58:04,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:04,120 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 417 transitions. [2021-12-06 18:58:04,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-06 18:58:04,121 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:58:04,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:58:04,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-12-06 18:58:04,121 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:58:04,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:58:04,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1350243176, now seen corresponding path program 1 times [2021-12-06 18:58:04,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:58:04,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967871702] [2021-12-06 18:58:04,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:58:04,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:58:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:58:04,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:58:04,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:58:04,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967871702] [2021-12-06 18:58:04,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967871702] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:58:04,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:58:04,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-06 18:58:04,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433899305] [2021-12-06 18:58:04,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:58:04,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:58:04,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:58:04,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:58:04,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:58:04,335 INFO L87 Difference]: Start difference. First operand 326 states and 417 transitions. Second operand has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:06,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:58:06,044 INFO L93 Difference]: Finished difference Result 1156 states and 1623 transitions. [2021-12-06 18:58:06,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-06 18:58:06,045 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-12-06 18:58:06,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:58:06,046 INFO L225 Difference]: With dead ends: 1156 [2021-12-06 18:58:06,046 INFO L226 Difference]: Without dead ends: 1141 [2021-12-06 18:58:06,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-12-06 18:58:06,046 INFO L933 BasicCegarLoop]: 546 mSDtfsCounter, 1207 mSDsluCounter, 3618 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 4164 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:58:06,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1207 Valid, 4164 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 18:58:06,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2021-12-06 18:58:06,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 295. [2021-12-06 18:58:06,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 294 states have (on average 1.2925170068027212) internal successors, (380), 294 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:06,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 380 transitions. [2021-12-06 18:58:06,239 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 380 transitions. Word has length 104 [2021-12-06 18:58:06,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:58:06,239 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 380 transitions. [2021-12-06 18:58:06,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:06,239 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 380 transitions. [2021-12-06 18:58:06,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-06 18:58:06,240 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:58:06,240 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:58:06,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-12-06 18:58:06,240 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:58:06,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:58:06,240 INFO L85 PathProgramCache]: Analyzing trace with hash 448868843, now seen corresponding path program 1 times [2021-12-06 18:58:06,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:58:06,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267267712] [2021-12-06 18:58:06,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:58:06,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:58:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:58:06,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:58:06,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:58:06,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267267712] [2021-12-06 18:58:06,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267267712] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:58:06,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:58:06,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:58:06,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439816939] [2021-12-06 18:58:06,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:58:06,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 18:58:06,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:58:06,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 18:58:06,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:58:06,293 INFO L87 Difference]: Start difference. First operand 295 states and 380 transitions. Second operand has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:08,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:58:08,396 INFO L93 Difference]: Finished difference Result 2071 states and 3020 transitions. [2021-12-06 18:58:08,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 18:58:08,397 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2021-12-06 18:58:08,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:58:08,398 INFO L225 Difference]: With dead ends: 2071 [2021-12-06 18:58:08,398 INFO L226 Difference]: Without dead ends: 1923 [2021-12-06 18:58:08,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2021-12-06 18:58:08,399 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 1808 mSDsluCounter, 3420 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1808 SdHoareTripleChecker+Valid, 3664 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:58:08,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1808 Valid, 3664 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:58:08,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2021-12-06 18:58:08,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 441. [2021-12-06 18:58:08,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 440 states have (on average 1.3522727272727273) internal successors, (595), 440 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:08,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 595 transitions. [2021-12-06 18:58:08,762 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 595 transitions. Word has length 135 [2021-12-06 18:58:08,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:58:08,762 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 595 transitions. [2021-12-06 18:58:08,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:08,762 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 595 transitions. [2021-12-06 18:58:08,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-06 18:58:08,763 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:58:08,763 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:58:08,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-12-06 18:58:08,763 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:58:08,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:58:08,763 INFO L85 PathProgramCache]: Analyzing trace with hash -41714143, now seen corresponding path program 1 times [2021-12-06 18:58:08,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:58:08,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18447092] [2021-12-06 18:58:08,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:58:08,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:58:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:58:08,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:58:08,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:58:08,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18447092] [2021-12-06 18:58:08,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18447092] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:58:08,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:58:08,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:58:08,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741149653] [2021-12-06 18:58:08,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:58:08,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 18:58:08,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:58:08,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 18:58:08,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:58:08,825 INFO L87 Difference]: Start difference. First operand 441 states and 595 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:11,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:58:11,094 INFO L93 Difference]: Finished difference Result 2353 states and 3421 transitions. [2021-12-06 18:58:11,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:58:11,094 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2021-12-06 18:58:11,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:58:11,096 INFO L225 Difference]: With dead ends: 2353 [2021-12-06 18:58:11,096 INFO L226 Difference]: Without dead ends: 2059 [2021-12-06 18:58:11,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:58:11,097 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 1531 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:58:11,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1531 Valid, 1936 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:58:11,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2021-12-06 18:58:11,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 733. [2021-12-06 18:58:11,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 732 states have (on average 1.4030054644808743) internal successors, (1027), 732 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:11,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1027 transitions. [2021-12-06 18:58:11,824 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1027 transitions. Word has length 137 [2021-12-06 18:58:11,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:58:11,824 INFO L470 AbstractCegarLoop]: Abstraction has 733 states and 1027 transitions. [2021-12-06 18:58:11,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:11,825 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1027 transitions. [2021-12-06 18:58:11,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-06 18:58:11,825 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:58:11,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:58:11,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-12-06 18:58:11,826 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:58:11,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:58:11,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1023774299, now seen corresponding path program 1 times [2021-12-06 18:58:11,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:58:11,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780362790] [2021-12-06 18:58:11,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:58:11,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:58:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:58:11,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:58:11,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:58:11,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780362790] [2021-12-06 18:58:11,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780362790] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:58:11,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:58:11,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:58:11,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106780557] [2021-12-06 18:58:11,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:58:11,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 18:58:11,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:58:11,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 18:58:11,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:58:11,884 INFO L87 Difference]: Start difference. First operand 733 states and 1027 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:14,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:58:14,451 INFO L93 Difference]: Finished difference Result 2645 states and 3853 transitions. [2021-12-06 18:58:14,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:58:14,452 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2021-12-06 18:58:14,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:58:14,454 INFO L225 Difference]: With dead ends: 2645 [2021-12-06 18:58:14,454 INFO L226 Difference]: Without dead ends: 2351 [2021-12-06 18:58:14,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:58:14,454 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 1531 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:58:14,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1531 Valid, 1842 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:58:14,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2351 states. [2021-12-06 18:58:15,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2351 to 1171. [2021-12-06 18:58:15,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 1170 states have (on average 1.4307692307692308) internal successors, (1674), 1170 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:15,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1674 transitions. [2021-12-06 18:58:15,693 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1674 transitions. Word has length 137 [2021-12-06 18:58:15,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:58:15,693 INFO L470 AbstractCegarLoop]: Abstraction has 1171 states and 1674 transitions. [2021-12-06 18:58:15,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:15,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1674 transitions. [2021-12-06 18:58:15,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-06 18:58:15,694 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:58:15,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:58:15,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-12-06 18:58:15,694 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:58:15,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:58:15,694 INFO L85 PathProgramCache]: Analyzing trace with hash 388220693, now seen corresponding path program 1 times [2021-12-06 18:58:15,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:58:15,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280724552] [2021-12-06 18:58:15,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:58:15,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:58:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:58:15,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:58:15,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:58:15,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280724552] [2021-12-06 18:58:15,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280724552] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:58:15,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:58:15,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:58:15,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916079907] [2021-12-06 18:58:15,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:58:15,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 18:58:15,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:58:15,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 18:58:15,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:58:15,751 INFO L87 Difference]: Start difference. First operand 1171 states and 1674 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:18,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:58:18,684 INFO L93 Difference]: Finished difference Result 2937 states and 4285 transitions. [2021-12-06 18:58:18,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:58:18,684 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2021-12-06 18:58:18,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:58:18,686 INFO L225 Difference]: With dead ends: 2937 [2021-12-06 18:58:18,686 INFO L226 Difference]: Without dead ends: 2643 [2021-12-06 18:58:18,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:58:18,687 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 1607 mSDsluCounter, 1441 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1607 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:58:18,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1607 Valid, 1771 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:58:18,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2643 states. [2021-12-06 18:58:20,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2643 to 1463. [2021-12-06 18:58:20,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1462 states have (on average 1.4404924760601916) internal successors, (2106), 1462 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:20,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 2106 transitions. [2021-12-06 18:58:20,219 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 2106 transitions. Word has length 137 [2021-12-06 18:58:20,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:58:20,219 INFO L470 AbstractCegarLoop]: Abstraction has 1463 states and 2106 transitions. [2021-12-06 18:58:20,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:20,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 2106 transitions. [2021-12-06 18:58:20,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-06 18:58:20,220 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:58:20,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:58:20,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-12-06 18:58:20,221 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:58:20,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:58:20,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1948470775, now seen corresponding path program 1 times [2021-12-06 18:58:20,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:58:20,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609805947] [2021-12-06 18:58:20,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:58:20,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:58:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:58:20,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:58:20,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:58:20,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609805947] [2021-12-06 18:58:20,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609805947] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:58:20,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:58:20,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:58:20,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537239040] [2021-12-06 18:58:20,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:58:20,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 18:58:20,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:58:20,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 18:58:20,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:58:20,279 INFO L87 Difference]: Start difference. First operand 1463 states and 2106 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:23,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:58:23,635 INFO L93 Difference]: Finished difference Result 3229 states and 4717 transitions. [2021-12-06 18:58:23,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:58:23,636 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2021-12-06 18:58:23,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:58:23,638 INFO L225 Difference]: With dead ends: 3229 [2021-12-06 18:58:23,638 INFO L226 Difference]: Without dead ends: 2935 [2021-12-06 18:58:23,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:58:23,639 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 1718 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 1811 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:58:23,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1718 Valid, 1811 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:58:23,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states. [2021-12-06 18:58:25,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 1755. [2021-12-06 18:58:25,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1755 states, 1754 states have (on average 1.4469783352337515) internal successors, (2538), 1754 states have internal predecessors, (2538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:25,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1755 states to 1755 states and 2538 transitions. [2021-12-06 18:58:25,519 INFO L78 Accepts]: Start accepts. Automaton has 1755 states and 2538 transitions. Word has length 137 [2021-12-06 18:58:25,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:58:25,519 INFO L470 AbstractCegarLoop]: Abstraction has 1755 states and 2538 transitions. [2021-12-06 18:58:25,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:25,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1755 states and 2538 transitions. [2021-12-06 18:58:25,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-06 18:58:25,520 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:58:25,520 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:58:25,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-12-06 18:58:25,521 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:58:25,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:58:25,521 INFO L85 PathProgramCache]: Analyzing trace with hash 574551692, now seen corresponding path program 1 times [2021-12-06 18:58:25,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:58:25,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497943948] [2021-12-06 18:58:25,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:58:25,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:58:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:58:25,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:58:25,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:58:25,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497943948] [2021-12-06 18:58:25,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497943948] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:58:25,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:58:25,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:58:25,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991212854] [2021-12-06 18:58:25,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:58:25,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 18:58:25,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:58:25,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 18:58:25,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:58:25,631 INFO L87 Difference]: Start difference. First operand 1755 states and 2538 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:27,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:58:27,671 INFO L93 Difference]: Finished difference Result 3365 states and 4917 transitions. [2021-12-06 18:58:27,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:58:27,672 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2021-12-06 18:58:27,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:58:27,673 INFO L225 Difference]: With dead ends: 3365 [2021-12-06 18:58:27,674 INFO L226 Difference]: Without dead ends: 1757 [2021-12-06 18:58:27,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:58:27,675 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 841 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:58:27,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [841 Valid, 760 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:58:27,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2021-12-06 18:58:29,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1755. [2021-12-06 18:58:29,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1755 states, 1754 states have (on average 1.4401368301026225) internal successors, (2526), 1754 states have internal predecessors, (2526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:29,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1755 states to 1755 states and 2526 transitions. [2021-12-06 18:58:29,531 INFO L78 Accepts]: Start accepts. Automaton has 1755 states and 2526 transitions. Word has length 137 [2021-12-06 18:58:29,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:58:29,531 INFO L470 AbstractCegarLoop]: Abstraction has 1755 states and 2526 transitions. [2021-12-06 18:58:29,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:29,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1755 states and 2526 transitions. [2021-12-06 18:58:29,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-06 18:58:29,532 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:58:29,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:58:29,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-12-06 18:58:29,532 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:58:29,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:58:29,532 INFO L85 PathProgramCache]: Analyzing trace with hash -194741301, now seen corresponding path program 1 times [2021-12-06 18:58:29,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:58:29,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299766566] [2021-12-06 18:58:29,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:58:29,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:58:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:58:29,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:58:29,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:58:29,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299766566] [2021-12-06 18:58:29,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299766566] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:58:29,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:58:29,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:58:29,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981921304] [2021-12-06 18:58:29,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:58:29,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:58:29,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:58:29,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:58:29,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:58:29,565 INFO L87 Difference]: Start difference. First operand 1755 states and 2526 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:33,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:58:33,151 INFO L93 Difference]: Finished difference Result 4829 states and 7020 transitions. [2021-12-06 18:58:33,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:58:33,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2021-12-06 18:58:33,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:58:33,153 INFO L225 Difference]: With dead ends: 4829 [2021-12-06 18:58:33,153 INFO L226 Difference]: Without dead ends: 3221 [2021-12-06 18:58:33,155 INFO L932 BasicCegarLoop]: 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 [2021-12-06 18:58:33,155 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 98 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:58:33,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 535 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:58:33,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3221 states. [2021-12-06 18:58:36,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3221 to 3219. [2021-12-06 18:58:36,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3219 states, 3218 states have (on average 1.4322560596643878) internal successors, (4609), 3218 states have internal predecessors, (4609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:36,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3219 states to 3219 states and 4609 transitions. [2021-12-06 18:58:36,835 INFO L78 Accepts]: Start accepts. Automaton has 3219 states and 4609 transitions. Word has length 137 [2021-12-06 18:58:36,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:58:36,835 INFO L470 AbstractCegarLoop]: Abstraction has 3219 states and 4609 transitions. [2021-12-06 18:58:36,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:36,835 INFO L276 IsEmpty]: Start isEmpty. Operand 3219 states and 4609 transitions. [2021-12-06 18:58:36,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-06 18:58:36,836 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:58:36,836 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:58:36,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-12-06 18:58:36,836 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:58:36,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:58:36,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1350263875, now seen corresponding path program 1 times [2021-12-06 18:58:36,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:58:36,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695272018] [2021-12-06 18:58:36,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:58:36,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:58:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:58:36,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:58:36,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:58:36,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695272018] [2021-12-06 18:58:36,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695272018] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:58:36,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:58:36,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:58:36,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695393520] [2021-12-06 18:58:36,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:58:36,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 18:58:36,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:58:36,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 18:58:36,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:58:36,894 INFO L87 Difference]: Start difference. First operand 3219 states and 4609 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:43,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:58:43,813 INFO L93 Difference]: Finished difference Result 6581 states and 9488 transitions. [2021-12-06 18:58:43,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:58:43,814 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2021-12-06 18:58:43,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:58:43,818 INFO L225 Difference]: With dead ends: 6581 [2021-12-06 18:58:43,818 INFO L226 Difference]: Without dead ends: 6021 [2021-12-06 18:58:43,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:58:43,820 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 1561 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:58:43,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1561 Valid, 1848 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:58:43,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2021-12-06 18:58:48,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 3777. [2021-12-06 18:58:48,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3777 states, 3776 states have (on average 1.4345868644067796) internal successors, (5417), 3776 states have internal predecessors, (5417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:48,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3777 states to 3777 states and 5417 transitions. [2021-12-06 18:58:48,116 INFO L78 Accepts]: Start accepts. Automaton has 3777 states and 5417 transitions. Word has length 137 [2021-12-06 18:58:48,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:58:48,116 INFO L470 AbstractCegarLoop]: Abstraction has 3777 states and 5417 transitions. [2021-12-06 18:58:48,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:48,116 INFO L276 IsEmpty]: Start isEmpty. Operand 3777 states and 5417 transitions. [2021-12-06 18:58:48,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-06 18:58:48,117 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:58:48,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:58:48,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-12-06 18:58:48,117 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:58:48,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:58:48,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1930438735, now seen corresponding path program 1 times [2021-12-06 18:58:48,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:58:48,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623290911] [2021-12-06 18:58:48,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:58:48,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:58:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:58:48,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:58:48,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:58:48,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623290911] [2021-12-06 18:58:48,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623290911] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:58:48,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:58:48,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 18:58:48,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136071966] [2021-12-06 18:58:48,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:58:48,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 18:58:48,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:58:48,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 18:58:48,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:58:48,184 INFO L87 Difference]: Start difference. First operand 3777 states and 5417 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:58:55,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:58:55,921 INFO L93 Difference]: Finished difference Result 7139 states and 10296 transitions. [2021-12-06 18:58:55,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:58:55,922 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2021-12-06 18:58:55,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:58:55,927 INFO L225 Difference]: With dead ends: 7139 [2021-12-06 18:58:55,927 INFO L226 Difference]: Without dead ends: 6579 [2021-12-06 18:58:55,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:58:55,929 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 1453 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 2098 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:58:55,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1453 Valid, 2098 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:58:55,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6579 states. [2021-12-06 18:59:00,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6579 to 4335. [2021-12-06 18:59:00,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4335 states, 4334 states have (on average 1.436317489616982) internal successors, (6225), 4334 states have internal predecessors, (6225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:59:00,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4335 states to 4335 states and 6225 transitions. [2021-12-06 18:59:00,926 INFO L78 Accepts]: Start accepts. Automaton has 4335 states and 6225 transitions. Word has length 137 [2021-12-06 18:59:00,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:59:00,926 INFO L470 AbstractCegarLoop]: Abstraction has 4335 states and 6225 transitions. [2021-12-06 18:59:00,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:59:00,926 INFO L276 IsEmpty]: Start isEmpty. Operand 4335 states and 6225 transitions. [2021-12-06 18:59:00,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-06 18:59:00,927 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:59:00,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:59:00,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-12-06 18:59:00,927 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:59:00,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:59:00,927 INFO L85 PathProgramCache]: Analyzing trace with hash 572065848, now seen corresponding path program 1 times [2021-12-06 18:59:00,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:59:00,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295281623] [2021-12-06 18:59:00,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:59:00,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:59:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:59:00,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:59:00,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:59:00,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295281623] [2021-12-06 18:59:00,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295281623] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:59:00,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:59:00,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:59:00,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456763917] [2021-12-06 18:59:00,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:59:00,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:59:00,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:59:00,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:59:00,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:59:00,965 INFO L87 Difference]: Start difference. First operand 4335 states and 6225 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:59:08,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:59:08,825 INFO L93 Difference]: Finished difference Result 10941 states and 15743 transitions. [2021-12-06 18:59:08,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:59:08,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2021-12-06 18:59:08,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:59:08,831 INFO L225 Difference]: With dead ends: 10941 [2021-12-06 18:59:08,831 INFO L226 Difference]: Without dead ends: 6753 [2021-12-06 18:59:08,833 INFO L932 BasicCegarLoop]: 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 [2021-12-06 18:59:08,833 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 113 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:59:08,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 496 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:59:08,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6753 states. [2021-12-06 18:59:16,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6753 to 6511. [2021-12-06 18:59:16,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6511 states, 6510 states have (on average 1.4265745007680493) internal successors, (9287), 6510 states have internal predecessors, (9287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:59:16,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6511 states to 6511 states and 9287 transitions. [2021-12-06 18:59:16,611 INFO L78 Accepts]: Start accepts. Automaton has 6511 states and 9287 transitions. Word has length 138 [2021-12-06 18:59:16,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:59:16,611 INFO L470 AbstractCegarLoop]: Abstraction has 6511 states and 9287 transitions. [2021-12-06 18:59:16,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:59:16,612 INFO L276 IsEmpty]: Start isEmpty. Operand 6511 states and 9287 transitions. [2021-12-06 18:59:16,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-06 18:59:16,612 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:59:16,612 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:59:16,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-12-06 18:59:16,613 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:59:16,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:59:16,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1682502168, now seen corresponding path program 1 times [2021-12-06 18:59:16,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:59:16,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385402460] [2021-12-06 18:59:16,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:59:16,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:59:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:59:16,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:59:16,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:59:16,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385402460] [2021-12-06 18:59:16,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385402460] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:59:16,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:59:16,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:59:16,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203926798] [2021-12-06 18:59:16,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:59:16,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:59:16,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:59:16,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:59:16,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:59:16,651 INFO L87 Difference]: Start difference. First operand 6511 states and 9287 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:59:31,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:59:31,325 INFO L93 Difference]: Finished difference Result 18879 states and 26911 transitions. [2021-12-06 18:59:31,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:59:31,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2021-12-06 18:59:31,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:59:31,337 INFO L225 Difference]: With dead ends: 18879 [2021-12-06 18:59:31,337 INFO L226 Difference]: Without dead ends: 12515 [2021-12-06 18:59:31,341 INFO L932 BasicCegarLoop]: 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 [2021-12-06 18:59:31,341 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 106 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:59:31,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 496 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:59:31,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12515 states. [2021-12-06 18:59:45,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12515 to 12153. [2021-12-06 18:59:45,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12153 states, 12152 states have (on average 1.4189433838051349) internal successors, (17243), 12152 states have internal predecessors, (17243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:59:45,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12153 states to 12153 states and 17243 transitions. [2021-12-06 18:59:45,779 INFO L78 Accepts]: Start accepts. Automaton has 12153 states and 17243 transitions. Word has length 139 [2021-12-06 18:59:45,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:59:45,780 INFO L470 AbstractCegarLoop]: Abstraction has 12153 states and 17243 transitions. [2021-12-06 18:59:45,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:59:45,780 INFO L276 IsEmpty]: Start isEmpty. Operand 12153 states and 17243 transitions. [2021-12-06 18:59:45,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-06 18:59:45,780 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:59:45,781 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:59:45,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-12-06 18:59:45,781 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 18:59:45,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:59:45,781 INFO L85 PathProgramCache]: Analyzing trace with hash 759478895, now seen corresponding path program 1 times [2021-12-06 18:59:45,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:59:45,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487165833] [2021-12-06 18:59:45,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:59:45,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:59:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:59:45,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:59:45,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:59:45,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487165833] [2021-12-06 18:59:45,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487165833] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:59:45,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:59:45,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:59:45,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674545372] [2021-12-06 18:59:45,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:59:45,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:59:45,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:59:45,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:59:45,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:59:45,819 INFO L87 Difference]: Start difference. First operand 12153 states and 17243 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:00:13,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:00:13,828 INFO L93 Difference]: Finished difference Result 35445 states and 50149 transitions. [2021-12-06 19:00:13,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:00:13,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-12-06 19:00:13,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:00:13,850 INFO L225 Difference]: With dead ends: 35445 [2021-12-06 19:00:13,851 INFO L226 Difference]: Without dead ends: 23439 [2021-12-06 19:00:13,859 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:00:13,859 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 99 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:00:13,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 496 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:00:13,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23439 states. [2021-12-06 19:00:41,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23439 to 22717. [2021-12-06 19:00:41,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22717 states, 22716 states have (on average 1.4080383870399718) internal successors, (31985), 22716 states have internal predecessors, (31985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:00:41,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22717 states to 22717 states and 31985 transitions. [2021-12-06 19:00:41,236 INFO L78 Accepts]: Start accepts. Automaton has 22717 states and 31985 transitions. Word has length 140 [2021-12-06 19:00:41,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:00:41,236 INFO L470 AbstractCegarLoop]: Abstraction has 22717 states and 31985 transitions. [2021-12-06 19:00:41,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:00:41,236 INFO L276 IsEmpty]: Start isEmpty. Operand 22717 states and 31985 transitions. [2021-12-06 19:00:41,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-12-06 19:00:41,237 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:00:41,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:00:41,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-12-06 19:00:41,237 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 19:00:41,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:00:41,237 INFO L85 PathProgramCache]: Analyzing trace with hash 872733499, now seen corresponding path program 1 times [2021-12-06 19:00:41,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:00:41,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279505575] [2021-12-06 19:00:41,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:00:41,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:00:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:00:41,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:00:41,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:00:41,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279505575] [2021-12-06 19:00:41,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279505575] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:00:41,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:00:41,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:00:41,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301904183] [2021-12-06 19:00:41,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:00:41,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:00:41,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:00:41,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:00:41,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:00:41,275 INFO L87 Difference]: Start difference. First operand 22717 states and 31985 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:01:34,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:01:34,427 INFO L93 Difference]: Finished difference Result 66417 states and 93115 transitions. [2021-12-06 19:01:34,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:01:34,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2021-12-06 19:01:34,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:01:34,478 INFO L225 Difference]: With dead ends: 66417 [2021-12-06 19:01:34,478 INFO L226 Difference]: Without dead ends: 43847 [2021-12-06 19:01:34,496 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:01:34,496 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 92 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:01:34,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 496 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:01:34,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43847 states. [2021-12-06 19:02:26,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43847 to 42405. [2021-12-06 19:02:26,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42405 states, 42404 states have (on average 1.39442033770399) internal successors, (59129), 42404 states have internal predecessors, (59129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:02:26,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42405 states to 42405 states and 59129 transitions. [2021-12-06 19:02:26,643 INFO L78 Accepts]: Start accepts. Automaton has 42405 states and 59129 transitions. Word has length 141 [2021-12-06 19:02:26,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:02:26,643 INFO L470 AbstractCegarLoop]: Abstraction has 42405 states and 59129 transitions. [2021-12-06 19:02:26,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:02:26,643 INFO L276 IsEmpty]: Start isEmpty. Operand 42405 states and 59129 transitions. [2021-12-06 19:02:26,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-12-06 19:02:26,644 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:02:26,644 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:02:26,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-12-06 19:02:26,644 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 19:02:26,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:02:26,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1491720642, now seen corresponding path program 1 times [2021-12-06 19:02:26,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:02:26,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452952409] [2021-12-06 19:02:26,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:02:26,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:02:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:02:26,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:02:26,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:02:26,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452952409] [2021-12-06 19:02:26,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452952409] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:02:26,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:02:26,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:02:26,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396540452] [2021-12-06 19:02:26,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:02:26,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:02:26,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:02:26,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:02:26,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:02:26,684 INFO L87 Difference]: Start difference. First operand 42405 states and 59129 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:04:08,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:04:08,036 INFO L93 Difference]: Finished difference Result 124041 states and 172027 transitions. [2021-12-06 19:04:08,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:04:08,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2021-12-06 19:04:08,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:04:08,147 INFO L225 Difference]: With dead ends: 124041 [2021-12-06 19:04:08,147 INFO L226 Difference]: Without dead ends: 81783 [2021-12-06 19:04:08,184 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:04:08,184 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 85 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:04:08,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 495 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:04:08,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81783 states. [2021-12-06 19:05:47,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81783 to 78901. [2021-12-06 19:05:47,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78901 states, 78900 states have (on average 1.3781622306717363) internal successors, (108737), 78900 states have internal predecessors, (108737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:05:47,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78901 states to 78901 states and 108737 transitions. [2021-12-06 19:05:47,979 INFO L78 Accepts]: Start accepts. Automaton has 78901 states and 108737 transitions. Word has length 142 [2021-12-06 19:05:47,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:05:47,979 INFO L470 AbstractCegarLoop]: Abstraction has 78901 states and 108737 transitions. [2021-12-06 19:05:47,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:05:47,979 INFO L276 IsEmpty]: Start isEmpty. Operand 78901 states and 108737 transitions. [2021-12-06 19:05:47,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-12-06 19:05:47,980 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:05:47,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:05:47,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-12-06 19:05:47,980 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-06 19:05:47,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:05:47,980 INFO L85 PathProgramCache]: Analyzing trace with hash 451218934, now seen corresponding path program 1 times [2021-12-06 19:05:47,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:05:47,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723833278] [2021-12-06 19:05:47,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:47,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:05:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:48,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:05:48,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:05:48,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723833278] [2021-12-06 19:05:48,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723833278] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:05:48,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:05:48,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:05:48,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719685472] [2021-12-06 19:05:48,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:05:48,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:05:48,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:05:48,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:05:48,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:05:48,023 INFO L87 Difference]: Start difference. First operand 78901 states and 108737 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:09:00,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:09:00,014 INFO L93 Difference]: Finished difference Result 230649 states and 315811 transitions. [2021-12-06 19:09:00,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:09:00,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2021-12-06 19:09:00,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:09:00,235 INFO L225 Difference]: With dead ends: 230649 [2021-12-06 19:09:00,235 INFO L226 Difference]: Without dead ends: 151895 [2021-12-06 19:09:00,302 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:09:00,302 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 75 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:09:00,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 493 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:09:00,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151895 states.