./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.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_242d4335-d5ea-4382-8e16-0da96282b521/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242d4335-d5ea-4382-8e16-0da96282b521/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_242d4335-d5ea-4382-8e16-0da96282b521/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242d4335-d5ea-4382-8e16-0da96282b521/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242d4335-d5ea-4382-8e16-0da96282b521/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_242d4335-d5ea-4382-8e16-0da96282b521/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 2b77f3a84818afa598b0eb39254acb84b353143275f6b4c2e95d15ee5488d008 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:26:56,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:26:56,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:26:56,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:26:56,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:26:56,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:26:56,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:26:56,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:26:56,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:26:56,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:26:56,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:26:56,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:26:56,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:26:56,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:26:56,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:26:56,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:26:56,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:26:56,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:26:56,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:26:56,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:26:56,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:26:56,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:26:56,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:26:56,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:26:56,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:26:56,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:26:56,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:26:56,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:26:56,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:26:56,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:26:56,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:26:56,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:26:56,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:26:56,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:26:56,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:26:56,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:26:56,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:26:56,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:26:56,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:26:56,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:26:56,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:26:56,741 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242d4335-d5ea-4382-8e16-0da96282b521/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 19:26:56,762 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:26:56,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:26:56,763 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:26:56,763 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:26:56,763 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 19:26:56,763 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 19:26:56,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:26:56,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:26:56,764 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:26:56,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:26:56,765 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 19:26:56,765 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:26:56,765 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 19:26:56,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:26:56,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 19:26:56,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 19:26:56,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 19:26:56,766 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 19:26:56,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:26:56,766 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:26:56,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 19:26:56,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:26:56,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:26:56,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 19:26:56,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:26:56,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:26:56,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 19:26:56,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 19:26:56,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:26:56,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 19:26:56,767 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 19:26:56,767 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 19:26:56,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 19:26:56,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:26:56,768 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_242d4335-d5ea-4382-8e16-0da96282b521/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242d4335-d5ea-4382-8e16-0da96282b521/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b77f3a84818afa598b0eb39254acb84b353143275f6b4c2e95d15ee5488d008 [2021-12-06 19:26:56,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:26:56,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:26:56,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:26:56,972 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:26:56,972 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:26:56,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242d4335-d5ea-4382-8e16-0da96282b521/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2021-12-06 19:26:57,019 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242d4335-d5ea-4382-8e16-0da96282b521/bin/uautomizer-DrprNOufMa/data/1ea4ac957/65cfa88987034383a554ccd622ea661c/FLAG11f5df91b [2021-12-06 19:26:57,627 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:26:57,628 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2021-12-06 19:26:57,652 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242d4335-d5ea-4382-8e16-0da96282b521/bin/uautomizer-DrprNOufMa/data/1ea4ac957/65cfa88987034383a554ccd622ea661c/FLAG11f5df91b [2021-12-06 19:26:58,067 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242d4335-d5ea-4382-8e16-0da96282b521/bin/uautomizer-DrprNOufMa/data/1ea4ac957/65cfa88987034383a554ccd622ea661c [2021-12-06 19:26:58,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:26:58,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:26:58,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:26:58,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:26:58,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:26:58,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:26:58" (1/1) ... [2021-12-06 19:26:58,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49410871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:26:58, skipping insertion in model container [2021-12-06 19:26:58,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:26:58" (1/1) ... [2021-12-06 19:26:58,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:26:58,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:26:58,582 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16849,16862] [2021-12-06 19:26:58,603 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21942,21955] [2021-12-06 19:26:58,611 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23299,23312] [2021-12-06 19:26:58,616 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24107,24120] [2021-12-06 19:26:58,625 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25792,25805] [2021-12-06 19:26:58,630 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26600,26613] [2021-12-06 19:26:58,636 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27736,27749] [2021-12-06 19:26:58,649 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30390,30403] [2021-12-06 19:26:58,654 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31201,31214] [2021-12-06 19:26:58,660 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32340,32353] [2021-12-06 19:26:58,670 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34445,34458] [2021-12-06 19:26:58,688 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38533,38546] [2021-12-06 19:26:58,692 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[39344,39357] [2021-12-06 19:26:58,698 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40483,40496] [2021-12-06 19:26:58,707 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[42588,42601] [2021-12-06 19:26:58,722 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[46127,46140] [2021-12-06 19:26:58,745 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52573,52586] [2021-12-06 19:26:58,749 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[53384,53397] [2021-12-06 19:26:58,755 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[54527,54540] [2021-12-06 19:26:58,764 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[56636,56649] [2021-12-06 19:26:58,779 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60424,60437] [2021-12-06 19:26:58,805 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[67072,67085] [2021-12-06 19:26:58,848 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[79206,79219] [2021-12-06 19:26:58,853 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[80017,80030] [2021-12-06 19:26:58,858 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[81156,81169] [2021-12-06 19:26:58,866 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[83261,83274] [2021-12-06 19:26:58,880 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[86800,86813] [2021-12-06 19:26:58,900 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[92697,92710] [2021-12-06 19:26:58,931 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[102772,102785] [2021-12-06 19:26:59,491 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:26:59,501 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:26:59,601 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16849,16862] [2021-12-06 19:26:59,636 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21942,21955] [2021-12-06 19:26:59,652 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23299,23312] [2021-12-06 19:26:59,662 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24107,24120] [2021-12-06 19:26:59,671 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25792,25805] [2021-12-06 19:26:59,675 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26600,26613] [2021-12-06 19:26:59,679 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27736,27749] [2021-12-06 19:26:59,688 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30390,30403] [2021-12-06 19:26:59,692 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31201,31214] [2021-12-06 19:26:59,697 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32340,32353] [2021-12-06 19:26:59,704 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34445,34458] [2021-12-06 19:26:59,717 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38533,38546] [2021-12-06 19:26:59,721 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[39344,39357] [2021-12-06 19:26:59,736 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40483,40496] [2021-12-06 19:26:59,747 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[42588,42601] [2021-12-06 19:26:59,762 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[46127,46140] [2021-12-06 19:26:59,781 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52573,52586] [2021-12-06 19:26:59,785 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[53384,53397] [2021-12-06 19:26:59,789 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[54527,54540] [2021-12-06 19:26:59,796 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[56636,56649] [2021-12-06 19:26:59,809 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60424,60437] [2021-12-06 19:26:59,831 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[67072,67085] [2021-12-06 19:26:59,867 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[79206,79219] [2021-12-06 19:26:59,871 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[80017,80030] [2021-12-06 19:26:59,875 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[81156,81169] [2021-12-06 19:26:59,882 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[83261,83274] [2021-12-06 19:26:59,894 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[86800,86813] [2021-12-06 19:26:59,911 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[92697,92710] [2021-12-06 19:26:59,938 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_242d4335-d5ea-4382-8e16-0da96282b521/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[102772,102785] [2021-12-06 19:27:00,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:27:00,438 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:27:00,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:00 WrapperNode [2021-12-06 19:27:00,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:27:00,439 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:27:00,439 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:27:00,439 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:27:00,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:00" (1/1) ... [2021-12-06 19:27:00,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:00" (1/1) ... [2021-12-06 19:27:00,629 INFO L137 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12087 [2021-12-06 19:27:00,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:27:00,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:27:00,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:27:00,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:27:00,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:00" (1/1) ... [2021-12-06 19:27:00,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:00" (1/1) ... [2021-12-06 19:27:00,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:00" (1/1) ... [2021-12-06 19:27:00,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:00" (1/1) ... [2021-12-06 19:27:00,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:00" (1/1) ... [2021-12-06 19:27:00,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:00" (1/1) ... [2021-12-06 19:27:00,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:00" (1/1) ... [2021-12-06 19:27:00,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:27:00,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:27:00,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:27:00,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:27:00,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:00" (1/1) ... [2021-12-06 19:27:00,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:27:00,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242d4335-d5ea-4382-8e16-0da96282b521/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:27:00,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242d4335-d5ea-4382-8e16-0da96282b521/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 19:27:00,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242d4335-d5ea-4382-8e16-0da96282b521/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 19:27:00,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:27:00,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 19:27:00,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:27:00,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:27:01,182 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:27:01,183 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:27:04,161 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:27:04,182 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:27:04,182 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 19:27:04,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:27:04 BoogieIcfgContainer [2021-12-06 19:27:04,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:27:04,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 19:27:04,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 19:27:04,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 19:27:04,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:26:58" (1/3) ... [2021-12-06 19:27:04,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e78a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:27:04, skipping insertion in model container [2021-12-06 19:27:04,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:27:00" (2/3) ... [2021-12-06 19:27:04,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e78a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:27:04, skipping insertion in model container [2021-12-06 19:27:04,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:27:04" (3/3) ... [2021-12-06 19:27:04,192 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2021-12-06 19:27:04,196 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 19:27:04,196 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-12-06 19:27:04,239 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 19:27:04,243 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 19:27:04,243 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-12-06 19:27:04,286 INFO L276 IsEmpty]: Start isEmpty. Operand has 2064 states, 2034 states have (on average 1.867748279252704) internal successors, (3799), 2063 states have internal predecessors, (3799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:04,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-06 19:27:04,321 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:04,322 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 19:27:04,322 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:04,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:04,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1776091410, now seen corresponding path program 1 times [2021-12-06 19:27:04,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:04,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097532631] [2021-12-06 19:27:04,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:04,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:04,706 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 19:27:04,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:04,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097532631] [2021-12-06 19:27:04,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097532631] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:04,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:04,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:27:04,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761519643] [2021-12-06 19:27:04,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:04,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:27:04,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:04,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:27:04,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:27:04,740 INFO L87 Difference]: Start difference. First operand has 2064 states, 2034 states have (on average 1.867748279252704) internal successors, (3799), 2063 states have internal predecessors, (3799), 0 states have call successors, (0), 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 20.0) internal successors, (100), 4 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 19:27:05,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:05,885 INFO L93 Difference]: Finished difference Result 3639 states and 6415 transitions. [2021-12-06 19:27:05,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:27:05,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 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 19:27:05,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:05,907 INFO L225 Difference]: With dead ends: 3639 [2021-12-06 19:27:05,907 INFO L226 Difference]: Without dead ends: 2131 [2021-12-06 19:27:05,913 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 19:27:05,916 INFO L933 BasicCegarLoop]: 1843 mSDtfsCounter, 10044 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10044 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:05,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10044 Valid, 2433 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1277 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-06 19:27:05,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2131 states. [2021-12-06 19:27:06,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2131 to 2029. [2021-12-06 19:27:06,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2029 states, 2000 states have (on average 1.3745) internal successors, (2749), 2028 states have internal predecessors, (2749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:06,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 2749 transitions. [2021-12-06 19:27:06,039 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 2749 transitions. Word has length 100 [2021-12-06 19:27:06,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:06,040 INFO L470 AbstractCegarLoop]: Abstraction has 2029 states and 2749 transitions. [2021-12-06 19:27:06,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 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 19:27:06,040 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 2749 transitions. [2021-12-06 19:27:06,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-06 19:27:06,046 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:06,046 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 19:27:06,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 19:27:06,047 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:06,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:06,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1108678289, now seen corresponding path program 1 times [2021-12-06 19:27:06,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:06,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830631745] [2021-12-06 19:27:06,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:06,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:06,181 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 19:27:06,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:06,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830631745] [2021-12-06 19:27:06,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830631745] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:06,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:06,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:27:06,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601589603] [2021-12-06 19:27:06,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:06,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:27:06,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:06,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:27:06,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:27:06,184 INFO L87 Difference]: Start difference. First operand 2029 states and 2749 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 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 19:27:06,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:06,904 INFO L93 Difference]: Finished difference Result 3493 states and 4870 transitions. [2021-12-06 19:27:06,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:27:06,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 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 19:27:06,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:06,913 INFO L225 Difference]: With dead ends: 3493 [2021-12-06 19:27:06,913 INFO L226 Difference]: Without dead ends: 1797 [2021-12-06 19:27:06,915 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 19:27:06,916 INFO L933 BasicCegarLoop]: 958 mSDtfsCounter, 5135 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5135 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:06,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5135 Valid, 994 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 19:27:06,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2021-12-06 19:27:06,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1797. [2021-12-06 19:27:06,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1797 states, 1768 states have (on average 1.4044117647058822) internal successors, (2483), 1796 states have internal predecessors, (2483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:06,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 2483 transitions. [2021-12-06 19:27:06,970 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 2483 transitions. Word has length 101 [2021-12-06 19:27:06,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:06,970 INFO L470 AbstractCegarLoop]: Abstraction has 1797 states and 2483 transitions. [2021-12-06 19:27:06,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 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 19:27:06,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 2483 transitions. [2021-12-06 19:27:06,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-06 19:27:06,975 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:06,975 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 19:27:06,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 19:27:06,975 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:06,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:06,976 INFO L85 PathProgramCache]: Analyzing trace with hash 487850506, now seen corresponding path program 1 times [2021-12-06 19:27:06,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:06,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985801818] [2021-12-06 19:27:06,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:06,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:07,080 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 19:27:07,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:07,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985801818] [2021-12-06 19:27:07,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985801818] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:07,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:07,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:27:07,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130265820] [2021-12-06 19:27:07,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:07,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:27:07,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:07,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:27:07,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:27:07,082 INFO L87 Difference]: Start difference. First operand 1797 states and 2483 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 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 19:27:07,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:07,648 INFO L93 Difference]: Finished difference Result 3261 states and 4602 transitions. [2021-12-06 19:27:07,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:27:07,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 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 19:27:07,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:07,655 INFO L225 Difference]: With dead ends: 3261 [2021-12-06 19:27:07,655 INFO L226 Difference]: Without dead ends: 1669 [2021-12-06 19:27:07,657 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 19:27:07,658 INFO L933 BasicCegarLoop]: 886 mSDtfsCounter, 4734 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4734 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:07,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4734 Valid, 914 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:27:07,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2021-12-06 19:27:07,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1669. [2021-12-06 19:27:07,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1669 states, 1640 states have (on average 1.425) internal successors, (2337), 1668 states have internal predecessors, (2337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:07,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 2337 transitions. [2021-12-06 19:27:07,707 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 2337 transitions. Word has length 102 [2021-12-06 19:27:07,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:07,708 INFO L470 AbstractCegarLoop]: Abstraction has 1669 states and 2337 transitions. [2021-12-06 19:27:07,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 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 19:27:07,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 2337 transitions. [2021-12-06 19:27:07,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-06 19:27:07,711 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:07,711 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 19:27:07,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 19:27:07,711 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:07,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:07,712 INFO L85 PathProgramCache]: Analyzing trace with hash -151518128, now seen corresponding path program 1 times [2021-12-06 19:27:07,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:07,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964763608] [2021-12-06 19:27:07,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:07,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:07,794 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 19:27:07,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:07,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964763608] [2021-12-06 19:27:07,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964763608] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:07,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:07,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:27:07,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882603883] [2021-12-06 19:27:07,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:07,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:27:07,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:07,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:27:07,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:27:07,795 INFO L87 Difference]: Start difference. First operand 1669 states and 2337 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 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 19:27:08,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:08,424 INFO L93 Difference]: Finished difference Result 3133 states and 4454 transitions. [2021-12-06 19:27:08,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:27:08,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 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 19:27:08,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:08,433 INFO L225 Difference]: With dead ends: 3133 [2021-12-06 19:27:08,433 INFO L226 Difference]: Without dead ends: 1629 [2021-12-06 19:27:08,436 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 19:27:08,437 INFO L933 BasicCegarLoop]: 650 mSDtfsCounter, 4390 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4390 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:08,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4390 Valid, 702 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 921 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 19:27:08,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2021-12-06 19:27:08,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1629. [2021-12-06 19:27:08,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 1600 states have (on average 1.429375) internal successors, (2287), 1628 states have internal predecessors, (2287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:08,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2287 transitions. [2021-12-06 19:27:08,507 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2287 transitions. Word has length 103 [2021-12-06 19:27:08,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:08,507 INFO L470 AbstractCegarLoop]: Abstraction has 1629 states and 2287 transitions. [2021-12-06 19:27:08,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 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 19:27:08,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2287 transitions. [2021-12-06 19:27:08,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-06 19:27:08,512 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:08,512 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 19:27:08,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 19:27:08,512 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:08,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:08,513 INFO L85 PathProgramCache]: Analyzing trace with hash 683064411, now seen corresponding path program 1 times [2021-12-06 19:27:08,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:08,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274055956] [2021-12-06 19:27:08,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:08,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:08,602 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 19:27:08,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:08,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274055956] [2021-12-06 19:27:08,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274055956] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:08,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:08,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:27:08,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830433293] [2021-12-06 19:27:08,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:08,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:27:08,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:08,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:27:08,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:27:08,605 INFO L87 Difference]: Start difference. First operand 1629 states and 2287 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 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 19:27:09,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:09,096 INFO L93 Difference]: Finished difference Result 3093 states and 4402 transitions. [2021-12-06 19:27:09,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:27:09,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 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 19:27:09,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:09,104 INFO L225 Difference]: With dead ends: 3093 [2021-12-06 19:27:09,104 INFO L226 Difference]: Without dead ends: 1576 [2021-12-06 19:27:09,107 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 19:27:09,108 INFO L933 BasicCegarLoop]: 833 mSDtfsCounter, 4451 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4451 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:09,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4451 Valid, 845 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:27:09,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-12-06 19:27:09,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576. [2021-12-06 19:27:09,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1547 states have (on average 1.4402068519715578) internal successors, (2228), 1575 states have internal predecessors, (2228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:09,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2228 transitions. [2021-12-06 19:27:09,165 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2228 transitions. Word has length 104 [2021-12-06 19:27:09,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:09,166 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 2228 transitions. [2021-12-06 19:27:09,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 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 19:27:09,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2228 transitions. [2021-12-06 19:27:09,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-06 19:27:09,169 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:09,169 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] [2021-12-06 19:27:09,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 19:27:09,169 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:09,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:09,169 INFO L85 PathProgramCache]: Analyzing trace with hash 739412290, now seen corresponding path program 1 times [2021-12-06 19:27:09,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:09,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209291243] [2021-12-06 19:27:09,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:09,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:09,235 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 19:27:09,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:09,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209291243] [2021-12-06 19:27:09,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209291243] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:09,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:09,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:27:09,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901208068] [2021-12-06 19:27:09,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:09,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:27:09,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:09,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:27:09,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:27:09,238 INFO L87 Difference]: Start difference. First operand 1576 states and 2228 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:09,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:09,656 INFO L93 Difference]: Finished difference Result 3040 states and 4341 transitions. [2021-12-06 19:27:09,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:27:09,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-12-06 19:27:09,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:09,663 INFO L225 Difference]: With dead ends: 3040 [2021-12-06 19:27:09,663 INFO L226 Difference]: Without dead ends: 1551 [2021-12-06 19:27:09,664 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 19:27:09,665 INFO L933 BasicCegarLoop]: 812 mSDtfsCounter, 4350 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4350 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:09,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4350 Valid, 832 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:27:09,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2021-12-06 19:27:09,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1551. [2021-12-06 19:27:09,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1522 states have (on average 1.444809461235217) internal successors, (2199), 1550 states have internal predecessors, (2199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:09,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2199 transitions. [2021-12-06 19:27:09,720 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2199 transitions. Word has length 105 [2021-12-06 19:27:09,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:09,720 INFO L470 AbstractCegarLoop]: Abstraction has 1551 states and 2199 transitions. [2021-12-06 19:27:09,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:09,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2199 transitions. [2021-12-06 19:27:09,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-06 19:27:09,723 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:09,723 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] [2021-12-06 19:27:09,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 19:27:09,724 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:09,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:09,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1545322768, now seen corresponding path program 1 times [2021-12-06 19:27:09,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:09,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993257857] [2021-12-06 19:27:09,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:09,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:09,789 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 19:27:09,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:09,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993257857] [2021-12-06 19:27:09,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993257857] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:09,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:09,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:27:09,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471656592] [2021-12-06 19:27:09,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:09,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:27:09,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:09,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:27:09,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:27:09,791 INFO L87 Difference]: Start difference. First operand 1551 states and 2199 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:10,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:10,270 INFO L93 Difference]: Finished difference Result 3015 states and 4310 transitions. [2021-12-06 19:27:10,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:27:10,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-06 19:27:10,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:10,276 INFO L225 Difference]: With dead ends: 3015 [2021-12-06 19:27:10,276 INFO L226 Difference]: Without dead ends: 1543 [2021-12-06 19:27:10,278 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 19:27:10,278 INFO L933 BasicCegarLoop]: 721 mSDtfsCounter, 4203 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4203 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:10,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4203 Valid, 765 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:27:10,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2021-12-06 19:27:10,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1543. [2021-12-06 19:27:10,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4451783355350065) internal successors, (2188), 1542 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:10,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2188 transitions. [2021-12-06 19:27:10,355 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2188 transitions. Word has length 106 [2021-12-06 19:27:10,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:10,355 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2188 transitions. [2021-12-06 19:27:10,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:10,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2188 transitions. [2021-12-06 19:27:10,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-06 19:27:10,360 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:10,360 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:27:10,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 19:27:10,360 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:10,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:10,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1619061170, now seen corresponding path program 1 times [2021-12-06 19:27:10,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:10,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76797272] [2021-12-06 19:27:10,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:10,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:10,560 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 19:27:10,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:10,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76797272] [2021-12-06 19:27:10,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76797272] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:10,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:10,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:27:10,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901347604] [2021-12-06 19:27:10,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:10,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:27:10,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:10,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:27:10,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:27:10,563 INFO L87 Difference]: Start difference. First operand 1543 states and 2188 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:12,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:12,274 INFO L93 Difference]: Finished difference Result 2929 states and 4150 transitions. [2021-12-06 19:27:12,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 19:27:12,274 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-06 19:27:12,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:12,284 INFO L225 Difference]: With dead ends: 2929 [2021-12-06 19:27:12,284 INFO L226 Difference]: Without dead ends: 2751 [2021-12-06 19:27:12,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2021-12-06 19:27:12,286 INFO L933 BasicCegarLoop]: 846 mSDtfsCounter, 8088 mSDsluCounter, 3650 mSDsCounter, 0 mSdLazyCounter, 4126 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8088 SdHoareTripleChecker+Valid, 4496 SdHoareTripleChecker+Invalid, 4335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 4126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:12,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8088 Valid, 4496 Invalid, 4335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 4126 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-06 19:27:12,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2751 states. [2021-12-06 19:27:12,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2751 to 1562. [2021-12-06 19:27:12,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1533 states have (on average 1.4455316373124592) internal successors, (2216), 1561 states have internal predecessors, (2216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:12,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2216 transitions. [2021-12-06 19:27:12,368 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2216 transitions. Word has length 107 [2021-12-06 19:27:12,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:12,368 INFO L470 AbstractCegarLoop]: Abstraction has 1562 states and 2216 transitions. [2021-12-06 19:27:12,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:12,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2216 transitions. [2021-12-06 19:27:12,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-06 19:27:12,370 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:12,370 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] [2021-12-06 19:27:12,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 19:27:12,370 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:12,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:12,371 INFO L85 PathProgramCache]: Analyzing trace with hash 321171132, now seen corresponding path program 1 times [2021-12-06 19:27:12,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:12,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992028049] [2021-12-06 19:27:12,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:12,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:12,512 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 19:27:12,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:12,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992028049] [2021-12-06 19:27:12,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992028049] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:12,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:12,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:27:12,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200972819] [2021-12-06 19:27:12,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:12,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:27:12,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:12,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:27:12,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:27:12,514 INFO L87 Difference]: Start difference. First operand 1562 states and 2216 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:13,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:13,949 INFO L93 Difference]: Finished difference Result 3126 states and 4444 transitions. [2021-12-06 19:27:13,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 19:27:13,950 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-06 19:27:13,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:13,960 INFO L225 Difference]: With dead ends: 3126 [2021-12-06 19:27:13,960 INFO L226 Difference]: Without dead ends: 2896 [2021-12-06 19:27:13,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2021-12-06 19:27:13,961 INFO L933 BasicCegarLoop]: 870 mSDtfsCounter, 8661 mSDsluCounter, 3737 mSDsCounter, 0 mSdLazyCounter, 3930 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8661 SdHoareTripleChecker+Valid, 4607 SdHoareTripleChecker+Invalid, 4006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 3930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:13,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8661 Valid, 4607 Invalid, 4006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 3930 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:27:13,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2896 states. [2021-12-06 19:27:14,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2896 to 1562. [2021-12-06 19:27:14,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1533 states have (on average 1.4448793215916504) internal successors, (2215), 1561 states have internal predecessors, (2215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:14,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2215 transitions. [2021-12-06 19:27:14,036 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2215 transitions. Word has length 107 [2021-12-06 19:27:14,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:14,037 INFO L470 AbstractCegarLoop]: Abstraction has 1562 states and 2215 transitions. [2021-12-06 19:27:14,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:14,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2215 transitions. [2021-12-06 19:27:14,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-06 19:27:14,039 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:14,039 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] [2021-12-06 19:27:14,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 19:27:14,039 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:14,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:14,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1269156506, now seen corresponding path program 1 times [2021-12-06 19:27:14,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:14,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134961570] [2021-12-06 19:27:14,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:14,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:14,170 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 19:27:14,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:14,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134961570] [2021-12-06 19:27:14,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134961570] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:14,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:14,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:27:14,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927938982] [2021-12-06 19:27:14,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:14,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:27:14,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:14,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:27:14,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:27:14,173 INFO L87 Difference]: Start difference. First operand 1562 states and 2215 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:15,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:15,822 INFO L93 Difference]: Finished difference Result 3033 states and 4332 transitions. [2021-12-06 19:27:15,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 19:27:15,823 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-06 19:27:15,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:15,832 INFO L225 Difference]: With dead ends: 3033 [2021-12-06 19:27:15,832 INFO L226 Difference]: Without dead ends: 2818 [2021-12-06 19:27:15,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2021-12-06 19:27:15,833 INFO L933 BasicCegarLoop]: 874 mSDtfsCounter, 6685 mSDsluCounter, 5097 mSDsCounter, 0 mSdLazyCounter, 5060 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6685 SdHoareTripleChecker+Valid, 5971 SdHoareTripleChecker+Invalid, 5124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 5060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:15,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6685 Valid, 5971 Invalid, 5124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 5060 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-06 19:27:15,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2818 states. [2021-12-06 19:27:15,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2818 to 1564. [2021-12-06 19:27:15,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1535 states have (on average 1.444299674267101) internal successors, (2217), 1563 states have internal predecessors, (2217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:15,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2217 transitions. [2021-12-06 19:27:15,908 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2217 transitions. Word has length 107 [2021-12-06 19:27:15,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:15,908 INFO L470 AbstractCegarLoop]: Abstraction has 1564 states and 2217 transitions. [2021-12-06 19:27:15,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:15,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2217 transitions. [2021-12-06 19:27:15,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-06 19:27:15,910 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:15,910 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] [2021-12-06 19:27:15,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 19:27:15,910 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:15,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:15,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1690715753, now seen corresponding path program 1 times [2021-12-06 19:27:15,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:15,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305248708] [2021-12-06 19:27:15,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:15,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:16,009 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 19:27:16,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:16,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305248708] [2021-12-06 19:27:16,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305248708] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:16,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:16,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:27:16,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498900687] [2021-12-06 19:27:16,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:16,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:27:16,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:16,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:27:16,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:27:16,010 INFO L87 Difference]: Start difference. First operand 1564 states and 2217 transitions. Second operand has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 8 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:17,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:17,220 INFO L93 Difference]: Finished difference Result 2972 states and 4248 transitions. [2021-12-06 19:27:17,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:27:17,220 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 8 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-06 19:27:17,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:17,230 INFO L225 Difference]: With dead ends: 2972 [2021-12-06 19:27:17,230 INFO L226 Difference]: Without dead ends: 2757 [2021-12-06 19:27:17,231 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 19:27:17,231 INFO L933 BasicCegarLoop]: 865 mSDtfsCounter, 4336 mSDsluCounter, 2854 mSDsCounter, 0 mSdLazyCounter, 3121 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4336 SdHoareTripleChecker+Valid, 3719 SdHoareTripleChecker+Invalid, 3160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 3121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:17,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4336 Valid, 3719 Invalid, 3160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 3121 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:27:17,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2021-12-06 19:27:17,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 1564. [2021-12-06 19:27:17,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1535 states have (on average 1.4436482084690554) internal successors, (2216), 1563 states have internal predecessors, (2216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:17,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2216 transitions. [2021-12-06 19:27:17,308 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2216 transitions. Word has length 107 [2021-12-06 19:27:17,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:17,308 INFO L470 AbstractCegarLoop]: Abstraction has 1564 states and 2216 transitions. [2021-12-06 19:27:17,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 8 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:17,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2216 transitions. [2021-12-06 19:27:17,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-06 19:27:17,310 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:17,310 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] [2021-12-06 19:27:17,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 19:27:17,310 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:17,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:17,311 INFO L85 PathProgramCache]: Analyzing trace with hash 64636340, now seen corresponding path program 1 times [2021-12-06 19:27:17,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:17,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975316103] [2021-12-06 19:27:17,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:17,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:17,421 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 19:27:17,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:17,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975316103] [2021-12-06 19:27:17,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975316103] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:17,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:17,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:27:17,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214925466] [2021-12-06 19:27:17,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:17,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 19:27:17,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:17,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 19:27:17,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:27:17,423 INFO L87 Difference]: Start difference. First operand 1564 states and 2216 transitions. Second operand has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:18,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:18,747 INFO L93 Difference]: Finished difference Result 2851 states and 4052 transitions. [2021-12-06 19:27:18,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:27:18,747 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-06 19:27:18,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:18,759 INFO L225 Difference]: With dead ends: 2851 [2021-12-06 19:27:18,759 INFO L226 Difference]: Without dead ends: 2667 [2021-12-06 19:27:18,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-06 19:27:18,761 INFO L933 BasicCegarLoop]: 853 mSDtfsCounter, 6838 mSDsluCounter, 3493 mSDsCounter, 0 mSdLazyCounter, 3669 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6838 SdHoareTripleChecker+Valid, 4346 SdHoareTripleChecker+Invalid, 3895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 3669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:18,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6838 Valid, 4346 Invalid, 3895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 3669 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:27:18,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2021-12-06 19:27:18,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 1564. [2021-12-06 19:27:18,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1535 states have (on average 1.442345276872964) internal successors, (2214), 1563 states have internal predecessors, (2214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:18,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2214 transitions. [2021-12-06 19:27:18,842 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2214 transitions. Word has length 107 [2021-12-06 19:27:18,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:18,843 INFO L470 AbstractCegarLoop]: Abstraction has 1564 states and 2214 transitions. [2021-12-06 19:27:18,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:18,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2214 transitions. [2021-12-06 19:27:18,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-06 19:27:18,845 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:18,845 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] [2021-12-06 19:27:18,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 19:27:18,846 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:18,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:18,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1233253698, now seen corresponding path program 1 times [2021-12-06 19:27:18,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:18,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001763681] [2021-12-06 19:27:18,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:18,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:18,963 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 19:27:18,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:18,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001763681] [2021-12-06 19:27:18,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001763681] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:18,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:18,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:27:18,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982187083] [2021-12-06 19:27:18,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:18,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 19:27:18,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:18,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 19:27:18,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:27:18,965 INFO L87 Difference]: Start difference. First operand 1564 states and 2214 transitions. Second operand has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:20,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:20,434 INFO L93 Difference]: Finished difference Result 3013 states and 4298 transitions. [2021-12-06 19:27:20,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:27:20,434 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-06 19:27:20,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:20,439 INFO L225 Difference]: With dead ends: 3013 [2021-12-06 19:27:20,439 INFO L226 Difference]: Without dead ends: 2749 [2021-12-06 19:27:20,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-06 19:27:20,441 INFO L933 BasicCegarLoop]: 877 mSDtfsCounter, 4357 mSDsluCounter, 4491 mSDsCounter, 0 mSdLazyCounter, 4433 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4357 SdHoareTripleChecker+Valid, 5368 SdHoareTripleChecker+Invalid, 4471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 4433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:20,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4357 Valid, 5368 Invalid, 4471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 4433 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:27:20,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2749 states. [2021-12-06 19:27:20,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2749 to 1564. [2021-12-06 19:27:20,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1535 states have (on average 1.441042345276873) internal successors, (2212), 1563 states have internal predecessors, (2212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:20,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2212 transitions. [2021-12-06 19:27:20,529 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2212 transitions. Word has length 107 [2021-12-06 19:27:20,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:20,530 INFO L470 AbstractCegarLoop]: Abstraction has 1564 states and 2212 transitions. [2021-12-06 19:27:20,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:20,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2212 transitions. [2021-12-06 19:27:20,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-06 19:27:20,531 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:20,531 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] [2021-12-06 19:27:20,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 19:27:20,532 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:20,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:20,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1471385960, now seen corresponding path program 1 times [2021-12-06 19:27:20,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:20,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419107444] [2021-12-06 19:27:20,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:20,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:20,639 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 19:27:20,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:20,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419107444] [2021-12-06 19:27:20,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419107444] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:20,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:20,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:27:20,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107133750] [2021-12-06 19:27:20,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:20,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 19:27:20,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:20,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 19:27:20,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:27:20,640 INFO L87 Difference]: Start difference. First operand 1564 states and 2212 transitions. Second operand has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:22,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:22,130 INFO L93 Difference]: Finished difference Result 3007 states and 4294 transitions. [2021-12-06 19:27:22,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:27:22,130 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-06 19:27:22,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:22,134 INFO L225 Difference]: With dead ends: 3007 [2021-12-06 19:27:22,134 INFO L226 Difference]: Without dead ends: 2749 [2021-12-06 19:27:22,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-06 19:27:22,135 INFO L933 BasicCegarLoop]: 877 mSDtfsCounter, 6393 mSDsluCounter, 4507 mSDsCounter, 0 mSdLazyCounter, 4429 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6393 SdHoareTripleChecker+Valid, 5384 SdHoareTripleChecker+Invalid, 4486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 4429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:22,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6393 Valid, 5384 Invalid, 4486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 4429 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:27:22,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2749 states. [2021-12-06 19:27:22,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2749 to 1564. [2021-12-06 19:27:22,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1535 states have (on average 1.4397394136807817) internal successors, (2210), 1563 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:22,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2210 transitions. [2021-12-06 19:27:22,215 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2210 transitions. Word has length 107 [2021-12-06 19:27:22,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:22,216 INFO L470 AbstractCegarLoop]: Abstraction has 1564 states and 2210 transitions. [2021-12-06 19:27:22,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:22,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2210 transitions. [2021-12-06 19:27:22,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-06 19:27:22,217 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:22,218 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] [2021-12-06 19:27:22,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 19:27:22,218 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:22,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:22,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1678647856, now seen corresponding path program 1 times [2021-12-06 19:27:22,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:22,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926330279] [2021-12-06 19:27:22,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:22,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:22,325 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 19:27:22,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:22,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926330279] [2021-12-06 19:27:22,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926330279] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:22,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:22,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:27:22,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71822914] [2021-12-06 19:27:22,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:22,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 19:27:22,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:22,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 19:27:22,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:27:22,328 INFO L87 Difference]: Start difference. First operand 1564 states and 2210 transitions. Second operand has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:23,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:23,808 INFO L93 Difference]: Finished difference Result 2748 states and 3869 transitions. [2021-12-06 19:27:23,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:27:23,808 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-06 19:27:23,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:23,812 INFO L225 Difference]: With dead ends: 2748 [2021-12-06 19:27:23,812 INFO L226 Difference]: Without dead ends: 2574 [2021-12-06 19:27:23,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-06 19:27:23,813 INFO L933 BasicCegarLoop]: 837 mSDtfsCounter, 7191 mSDsluCounter, 3206 mSDsCounter, 0 mSdLazyCounter, 3514 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7191 SdHoareTripleChecker+Valid, 4043 SdHoareTripleChecker+Invalid, 3944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 3514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:23,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7191 Valid, 4043 Invalid, 3944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 3514 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:27:23,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2574 states. [2021-12-06 19:27:23,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2574 to 1564. [2021-12-06 19:27:23,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1535 states have (on average 1.4384364820846907) internal successors, (2208), 1563 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:23,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2208 transitions. [2021-12-06 19:27:23,909 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2208 transitions. Word has length 107 [2021-12-06 19:27:23,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:23,909 INFO L470 AbstractCegarLoop]: Abstraction has 1564 states and 2208 transitions. [2021-12-06 19:27:23,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:23,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2208 transitions. [2021-12-06 19:27:23,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-06 19:27:23,911 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:23,911 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] [2021-12-06 19:27:23,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 19:27:23,911 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:23,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:23,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1318429402, now seen corresponding path program 1 times [2021-12-06 19:27:23,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:23,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697418790] [2021-12-06 19:27:23,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:23,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:24,011 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 19:27:24,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:24,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697418790] [2021-12-06 19:27:24,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697418790] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:24,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:24,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:27:24,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411652020] [2021-12-06 19:27:24,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:24,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 19:27:24,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:24,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 19:27:24,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:27:24,013 INFO L87 Difference]: Start difference. First operand 1564 states and 2208 transitions. Second operand has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:25,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:25,425 INFO L93 Difference]: Finished difference Result 3029 states and 4315 transitions. [2021-12-06 19:27:25,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:27:25,425 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-06 19:27:25,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:25,428 INFO L225 Difference]: With dead ends: 3029 [2021-12-06 19:27:25,428 INFO L226 Difference]: Without dead ends: 2749 [2021-12-06 19:27:25,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-06 19:27:25,430 INFO L933 BasicCegarLoop]: 877 mSDtfsCounter, 6516 mSDsluCounter, 3680 mSDsCounter, 0 mSdLazyCounter, 3752 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6516 SdHoareTripleChecker+Valid, 4557 SdHoareTripleChecker+Invalid, 3817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:25,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6516 Valid, 4557 Invalid, 3817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3752 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:27:25,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2749 states. [2021-12-06 19:27:25,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2749 to 1564. [2021-12-06 19:27:25,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1535 states have (on average 1.4371335504885994) internal successors, (2206), 1563 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:25,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2206 transitions. [2021-12-06 19:27:25,524 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2206 transitions. Word has length 107 [2021-12-06 19:27:25,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:25,525 INFO L470 AbstractCegarLoop]: Abstraction has 1564 states and 2206 transitions. [2021-12-06 19:27:25,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:25,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2206 transitions. [2021-12-06 19:27:25,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-06 19:27:25,526 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:25,526 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] [2021-12-06 19:27:25,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 19:27:25,526 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:25,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:25,527 INFO L85 PathProgramCache]: Analyzing trace with hash 985303761, now seen corresponding path program 1 times [2021-12-06 19:27:25,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:25,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647662000] [2021-12-06 19:27:25,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:25,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:25,623 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 19:27:25,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:25,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647662000] [2021-12-06 19:27:25,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647662000] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:25,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:25,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:27:25,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638273143] [2021-12-06 19:27:25,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:25,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 19:27:25,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:25,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 19:27:25,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:27:25,625 INFO L87 Difference]: Start difference. First operand 1564 states and 2206 transitions. Second operand has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:26,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:26,947 INFO L93 Difference]: Finished difference Result 3045 states and 4327 transitions. [2021-12-06 19:27:26,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:27:26,948 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-06 19:27:26,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:26,951 INFO L225 Difference]: With dead ends: 3045 [2021-12-06 19:27:26,951 INFO L226 Difference]: Without dead ends: 2749 [2021-12-06 19:27:26,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-06 19:27:26,952 INFO L933 BasicCegarLoop]: 830 mSDtfsCounter, 7222 mSDsluCounter, 3460 mSDsCounter, 0 mSdLazyCounter, 3500 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7222 SdHoareTripleChecker+Valid, 4290 SdHoareTripleChecker+Invalid, 3567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:26,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7222 Valid, 4290 Invalid, 3567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3500 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:27:26,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2749 states. [2021-12-06 19:27:27,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2749 to 1564. [2021-12-06 19:27:27,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1535 states have (on average 1.435830618892508) internal successors, (2204), 1563 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:27,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2204 transitions. [2021-12-06 19:27:27,057 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2204 transitions. Word has length 107 [2021-12-06 19:27:27,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:27,057 INFO L470 AbstractCegarLoop]: Abstraction has 1564 states and 2204 transitions. [2021-12-06 19:27:27,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.727272727272727) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:27,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2204 transitions. [2021-12-06 19:27:27,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-06 19:27:27,058 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:27,059 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:27:27,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 19:27:27,059 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:27,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:27,059 INFO L85 PathProgramCache]: Analyzing trace with hash 2092313051, now seen corresponding path program 1 times [2021-12-06 19:27:27,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:27,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524782309] [2021-12-06 19:27:27,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:27,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:27,154 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 19:27:27,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:27,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524782309] [2021-12-06 19:27:27,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524782309] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:27,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:27,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:27:27,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970777639] [2021-12-06 19:27:27,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:27,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 19:27:27,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:27,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 19:27:27,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:27:27,156 INFO L87 Difference]: Start difference. First operand 1564 states and 2204 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:28,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:28,220 INFO L93 Difference]: Finished difference Result 2683 states and 3658 transitions. [2021-12-06 19:27:28,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 19:27:28,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-06 19:27:28,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:28,223 INFO L225 Difference]: With dead ends: 2683 [2021-12-06 19:27:28,223 INFO L226 Difference]: Without dead ends: 2023 [2021-12-06 19:27:28,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:27:28,224 INFO L933 BasicCegarLoop]: 655 mSDtfsCounter, 7395 mSDsluCounter, 1446 mSDsCounter, 0 mSdLazyCounter, 2240 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7395 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 2379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 2240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:28,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7395 Valid, 2101 Invalid, 2379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 2240 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 19:27:28,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2023 states. [2021-12-06 19:27:28,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2023 to 1564. [2021-12-06 19:27:28,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1535 states have (on average 1.4351791530944626) internal successors, (2203), 1563 states have internal predecessors, (2203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:28,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2203 transitions. [2021-12-06 19:27:28,328 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2203 transitions. Word has length 107 [2021-12-06 19:27:28,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:28,328 INFO L470 AbstractCegarLoop]: Abstraction has 1564 states and 2203 transitions. [2021-12-06 19:27:28,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:28,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2203 transitions. [2021-12-06 19:27:28,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-06 19:27:28,330 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:28,330 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] [2021-12-06 19:27:28,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 19:27:28,330 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:28,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:28,330 INFO L85 PathProgramCache]: Analyzing trace with hash -27908421, now seen corresponding path program 1 times [2021-12-06 19:27:28,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:28,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269379831] [2021-12-06 19:27:28,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:28,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:28,447 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 19:27:28,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:28,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269379831] [2021-12-06 19:27:28,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269379831] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:28,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:28,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:27:28,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681908012] [2021-12-06 19:27:28,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:28,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:27:28,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:28,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:27:28,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:27:28,449 INFO L87 Difference]: Start difference. First operand 1564 states and 2203 transitions. Second operand has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 11 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:30,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:30,300 INFO L93 Difference]: Finished difference Result 2887 states and 4034 transitions. [2021-12-06 19:27:30,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 19:27:30,300 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 11 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-06 19:27:30,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:30,304 INFO L225 Difference]: With dead ends: 2887 [2021-12-06 19:27:30,304 INFO L226 Difference]: Without dead ends: 2716 [2021-12-06 19:27:30,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2021-12-06 19:27:30,306 INFO L933 BasicCegarLoop]: 838 mSDtfsCounter, 6721 mSDsluCounter, 3940 mSDsCounter, 0 mSdLazyCounter, 4488 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6721 SdHoareTripleChecker+Valid, 4778 SdHoareTripleChecker+Invalid, 4828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 4488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:30,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6721 Valid, 4778 Invalid, 4828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 4488 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-06 19:27:30,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2021-12-06 19:27:30,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 1578. [2021-12-06 19:27:30,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1549 states have (on average 1.435119431891543) internal successors, (2223), 1577 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:30,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 2223 transitions. [2021-12-06 19:27:30,424 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 2223 transitions. Word has length 109 [2021-12-06 19:27:30,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:30,424 INFO L470 AbstractCegarLoop]: Abstraction has 1578 states and 2223 transitions. [2021-12-06 19:27:30,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 11 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:30,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 2223 transitions. [2021-12-06 19:27:30,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-06 19:27:30,426 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:30,426 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] [2021-12-06 19:27:30,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 19:27:30,426 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:30,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:30,427 INFO L85 PathProgramCache]: Analyzing trace with hash -2001833387, now seen corresponding path program 1 times [2021-12-06 19:27:30,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:30,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059187382] [2021-12-06 19:27:30,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:30,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:30,545 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 19:27:30,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:30,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059187382] [2021-12-06 19:27:30,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059187382] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:30,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:30,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:27:30,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834245632] [2021-12-06 19:27:30,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:30,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:27:30,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:30,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:27:30,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:27:30,546 INFO L87 Difference]: Start difference. First operand 1578 states and 2223 transitions. Second operand has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 11 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:32,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:32,229 INFO L93 Difference]: Finished difference Result 2953 states and 4154 transitions. [2021-12-06 19:27:32,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 19:27:32,230 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 11 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-06 19:27:32,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:32,233 INFO L225 Difference]: With dead ends: 2953 [2021-12-06 19:27:32,233 INFO L226 Difference]: Without dead ends: 2770 [2021-12-06 19:27:32,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2021-12-06 19:27:32,234 INFO L933 BasicCegarLoop]: 816 mSDtfsCounter, 6913 mSDsluCounter, 4699 mSDsCounter, 0 mSdLazyCounter, 4799 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6913 SdHoareTripleChecker+Valid, 5515 SdHoareTripleChecker+Invalid, 4981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 4799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:32,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6913 Valid, 5515 Invalid, 4981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 4799 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:27:32,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2021-12-06 19:27:32,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 1582. [2021-12-06 19:27:32,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1553 states have (on average 1.4339987121699935) internal successors, (2227), 1581 states have internal predecessors, (2227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:32,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 2227 transitions. [2021-12-06 19:27:32,357 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 2227 transitions. Word has length 109 [2021-12-06 19:27:32,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:32,357 INFO L470 AbstractCegarLoop]: Abstraction has 1582 states and 2227 transitions. [2021-12-06 19:27:32,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 11 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:32,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 2227 transitions. [2021-12-06 19:27:32,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-06 19:27:32,359 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:32,359 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] [2021-12-06 19:27:32,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 19:27:32,359 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:32,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:32,360 INFO L85 PathProgramCache]: Analyzing trace with hash 380936807, now seen corresponding path program 1 times [2021-12-06 19:27:32,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:32,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426253977] [2021-12-06 19:27:32,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:32,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:32,463 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 19:27:32,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:32,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426253977] [2021-12-06 19:27:32,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426253977] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:32,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:32,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:27:32,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726045529] [2021-12-06 19:27:32,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:32,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:27:32,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:32,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:27:32,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:27:32,464 INFO L87 Difference]: Start difference. First operand 1582 states and 2227 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:33,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:33,820 INFO L93 Difference]: Finished difference Result 2184 states and 3111 transitions. [2021-12-06 19:27:33,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:27:33,820 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-06 19:27:33,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:33,822 INFO L225 Difference]: With dead ends: 2184 [2021-12-06 19:27:33,822 INFO L226 Difference]: Without dead ends: 1800 [2021-12-06 19:27:33,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-06 19:27:33,823 INFO L933 BasicCegarLoop]: 811 mSDtfsCounter, 4824 mSDsluCounter, 3578 mSDsCounter, 0 mSdLazyCounter, 3525 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4824 SdHoareTripleChecker+Valid, 4389 SdHoareTripleChecker+Invalid, 3552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:33,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4824 Valid, 4389 Invalid, 3552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3525 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:27:33,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2021-12-06 19:27:33,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1543. [2021-12-06 19:27:33,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4352708058124175) internal successors, (2173), 1542 states have internal predecessors, (2173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:33,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2173 transitions. [2021-12-06 19:27:33,935 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2173 transitions. Word has length 109 [2021-12-06 19:27:33,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:33,935 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2173 transitions. [2021-12-06 19:27:33,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:33,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2173 transitions. [2021-12-06 19:27:33,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-06 19:27:33,937 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:33,937 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] [2021-12-06 19:27:33,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-06 19:27:33,937 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:33,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:33,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1087108112, now seen corresponding path program 1 times [2021-12-06 19:27:33,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:33,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902255759] [2021-12-06 19:27:33,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:33,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:34,019 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 19:27:34,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:34,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902255759] [2021-12-06 19:27:34,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902255759] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:34,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:34,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:27:34,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695093585] [2021-12-06 19:27:34,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:34,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:27:34,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:34,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:27:34,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:27:34,020 INFO L87 Difference]: Start difference. First operand 1543 states and 2173 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:35,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:35,565 INFO L93 Difference]: Finished difference Result 3015 states and 4301 transitions. [2021-12-06 19:27:35,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:27:35,566 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-06 19:27:35,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:35,568 INFO L225 Difference]: With dead ends: 3015 [2021-12-06 19:27:35,568 INFO L226 Difference]: Without dead ends: 2754 [2021-12-06 19:27:35,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:27:35,569 INFO L933 BasicCegarLoop]: 980 mSDtfsCounter, 7981 mSDsluCounter, 3286 mSDsCounter, 0 mSdLazyCounter, 3469 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7981 SdHoareTripleChecker+Valid, 4266 SdHoareTripleChecker+Invalid, 3514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 3469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:35,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7981 Valid, 4266 Invalid, 3514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 3469 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:27:35,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2021-12-06 19:27:35,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1543. [2021-12-06 19:27:35,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4346103038309115) internal successors, (2172), 1542 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:35,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2172 transitions. [2021-12-06 19:27:35,701 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2172 transitions. Word has length 109 [2021-12-06 19:27:35,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:35,701 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2172 transitions. [2021-12-06 19:27:35,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:35,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2172 transitions. [2021-12-06 19:27:35,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-06 19:27:35,703 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:35,703 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] [2021-12-06 19:27:35,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-06 19:27:35,703 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:35,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:35,703 INFO L85 PathProgramCache]: Analyzing trace with hash -604463307, now seen corresponding path program 1 times [2021-12-06 19:27:35,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:35,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154565862] [2021-12-06 19:27:35,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:35,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:35,784 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 19:27:35,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:35,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154565862] [2021-12-06 19:27:35,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154565862] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:35,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:35,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:27:35,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63652037] [2021-12-06 19:27:35,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:35,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:27:35,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:35,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:27:35,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:27:35,785 INFO L87 Difference]: Start difference. First operand 1543 states and 2172 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:37,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:37,163 INFO L93 Difference]: Finished difference Result 2929 states and 4170 transitions. [2021-12-06 19:27:37,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:27:37,163 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-06 19:27:37,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:37,165 INFO L225 Difference]: With dead ends: 2929 [2021-12-06 19:27:37,165 INFO L226 Difference]: Without dead ends: 2722 [2021-12-06 19:27:37,166 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 19:27:37,167 INFO L933 BasicCegarLoop]: 928 mSDtfsCounter, 6102 mSDsluCounter, 3089 mSDsCounter, 0 mSdLazyCounter, 3331 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6102 SdHoareTripleChecker+Valid, 4017 SdHoareTripleChecker+Invalid, 3388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:37,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6102 Valid, 4017 Invalid, 3388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3331 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:27:37,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2021-12-06 19:27:37,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 1543. [2021-12-06 19:27:37,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4339498018494055) internal successors, (2171), 1542 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:37,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2171 transitions. [2021-12-06 19:27:37,292 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2171 transitions. Word has length 109 [2021-12-06 19:27:37,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:37,292 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2171 transitions. [2021-12-06 19:27:37,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:37,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2171 transitions. [2021-12-06 19:27:37,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-06 19:27:37,294 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:37,294 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] [2021-12-06 19:27:37,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-06 19:27:37,294 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:37,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:37,295 INFO L85 PathProgramCache]: Analyzing trace with hash 70295, now seen corresponding path program 1 times [2021-12-06 19:27:37,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:37,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2631040] [2021-12-06 19:27:37,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:37,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:37,426 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 19:27:37,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:37,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2631040] [2021-12-06 19:27:37,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2631040] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:37,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:37,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:27:37,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416667637] [2021-12-06 19:27:37,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:37,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:27:37,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:37,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:27:37,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:27:37,428 INFO L87 Difference]: Start difference. First operand 1543 states and 2171 transitions. Second operand has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 11 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:40,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:40,625 INFO L93 Difference]: Finished difference Result 4596 states and 6629 transitions. [2021-12-06 19:27:40,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:27:40,625 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 11 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-06 19:27:40,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:40,628 INFO L225 Difference]: With dead ends: 4596 [2021-12-06 19:27:40,628 INFO L226 Difference]: Without dead ends: 4312 [2021-12-06 19:27:40,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 19:27:40,630 INFO L933 BasicCegarLoop]: 1517 mSDtfsCounter, 10659 mSDsluCounter, 4756 mSDsCounter, 0 mSdLazyCounter, 5326 mSolverCounterSat, 806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10659 SdHoareTripleChecker+Valid, 6273 SdHoareTripleChecker+Invalid, 6132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 806 IncrementalHoareTripleChecker+Valid, 5326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:40,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10659 Valid, 6273 Invalid, 6132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [806 Valid, 5326 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 19:27:40,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4312 states. [2021-12-06 19:27:40,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4312 to 1547. [2021-12-06 19:27:40,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.4328063241106719) internal successors, (2175), 1546 states have internal predecessors, (2175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:40,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2175 transitions. [2021-12-06 19:27:40,783 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2175 transitions. Word has length 109 [2021-12-06 19:27:40,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:40,783 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2175 transitions. [2021-12-06 19:27:40,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 11 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:40,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2175 transitions. [2021-12-06 19:27:40,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-06 19:27:40,785 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:40,785 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] [2021-12-06 19:27:40,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-06 19:27:40,786 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:40,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:40,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1406819915, now seen corresponding path program 1 times [2021-12-06 19:27:40,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:40,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221082545] [2021-12-06 19:27:40,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:40,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:40,861 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 19:27:40,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:40,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221082545] [2021-12-06 19:27:40,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221082545] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:40,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:40,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:27:40,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195969298] [2021-12-06 19:27:40,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:40,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:27:40,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:40,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:27:40,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:27:40,863 INFO L87 Difference]: Start difference. First operand 1547 states and 2175 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:42,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:42,256 INFO L93 Difference]: Finished difference Result 2941 states and 4181 transitions. [2021-12-06 19:27:42,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:27:42,257 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-06 19:27:42,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:42,259 INFO L225 Difference]: With dead ends: 2941 [2021-12-06 19:27:42,259 INFO L226 Difference]: Without dead ends: 2726 [2021-12-06 19:27:42,260 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 19:27:42,260 INFO L933 BasicCegarLoop]: 952 mSDtfsCounter, 6871 mSDsluCounter, 3114 mSDsCounter, 0 mSdLazyCounter, 3344 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6871 SdHoareTripleChecker+Valid, 4066 SdHoareTripleChecker+Invalid, 3411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:42,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6871 Valid, 4066 Invalid, 3411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3344 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:27:42,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2021-12-06 19:27:42,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 1547. [2021-12-06 19:27:42,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.4321475625823452) internal successors, (2174), 1546 states have internal predecessors, (2174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:42,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2174 transitions. [2021-12-06 19:27:42,410 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2174 transitions. Word has length 109 [2021-12-06 19:27:42,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:42,410 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2174 transitions. [2021-12-06 19:27:42,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:42,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2174 transitions. [2021-12-06 19:27:42,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-06 19:27:42,411 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:42,412 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] [2021-12-06 19:27:42,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-06 19:27:42,412 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:42,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:42,412 INFO L85 PathProgramCache]: Analyzing trace with hash -583563401, now seen corresponding path program 1 times [2021-12-06 19:27:42,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:42,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237589078] [2021-12-06 19:27:42,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:42,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:42,545 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 19:27:42,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:42,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237589078] [2021-12-06 19:27:42,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237589078] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:42,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:42,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:27:42,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503864007] [2021-12-06 19:27:42,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:42,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 19:27:42,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:42,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 19:27:42,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:27:42,547 INFO L87 Difference]: Start difference. First operand 1547 states and 2174 transitions. Second operand has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:44,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:44,377 INFO L93 Difference]: Finished difference Result 2739 states and 3895 transitions. [2021-12-06 19:27:44,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 19:27:44,378 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-06 19:27:44,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:44,379 INFO L225 Difference]: With dead ends: 2739 [2021-12-06 19:27:44,380 INFO L226 Difference]: Without dead ends: 2089 [2021-12-06 19:27:44,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=474, Unknown=0, NotChecked=0, Total=650 [2021-12-06 19:27:44,381 INFO L933 BasicCegarLoop]: 969 mSDtfsCounter, 5256 mSDsluCounter, 4588 mSDsCounter, 0 mSdLazyCounter, 4598 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5256 SdHoareTripleChecker+Valid, 5557 SdHoareTripleChecker+Invalid, 4637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 4598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:44,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5256 Valid, 5557 Invalid, 4637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 4598 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:27:44,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2021-12-06 19:27:44,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 1547. [2021-12-06 19:27:44,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.4308300395256917) internal successors, (2172), 1546 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:44,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2172 transitions. [2021-12-06 19:27:44,531 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2172 transitions. Word has length 109 [2021-12-06 19:27:44,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:44,531 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2172 transitions. [2021-12-06 19:27:44,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:44,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2172 transitions. [2021-12-06 19:27:44,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-06 19:27:44,533 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:44,533 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] [2021-12-06 19:27:44,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-06 19:27:44,533 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:44,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:44,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1817965001, now seen corresponding path program 1 times [2021-12-06 19:27:44,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:44,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959796816] [2021-12-06 19:27:44,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:44,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:44,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:44,624 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 19:27:44,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:44,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959796816] [2021-12-06 19:27:44,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959796816] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:44,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:44,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:27:44,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316452436] [2021-12-06 19:27:44,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:44,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:27:44,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:44,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:27:44,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:27:44,625 INFO L87 Difference]: Start difference. First operand 1547 states and 2172 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:46,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:46,258 INFO L93 Difference]: Finished difference Result 3038 states and 4318 transitions. [2021-12-06 19:27:46,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:27:46,259 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-06 19:27:46,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:46,261 INFO L225 Difference]: With dead ends: 3038 [2021-12-06 19:27:46,261 INFO L226 Difference]: Without dead ends: 2754 [2021-12-06 19:27:46,262 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 19:27:46,262 INFO L933 BasicCegarLoop]: 1328 mSDtfsCounter, 7028 mSDsluCounter, 3853 mSDsCounter, 0 mSdLazyCounter, 4122 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7028 SdHoareTripleChecker+Valid, 5181 SdHoareTripleChecker+Invalid, 4164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 4122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:46,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7028 Valid, 5181 Invalid, 4164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 4122 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:27:46,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2021-12-06 19:27:46,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1543. [2021-12-06 19:27:46,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4313077939233818) internal successors, (2167), 1542 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:46,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2167 transitions. [2021-12-06 19:27:46,423 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2167 transitions. Word has length 110 [2021-12-06 19:27:46,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:46,423 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2167 transitions. [2021-12-06 19:27:46,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:46,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2167 transitions. [2021-12-06 19:27:46,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-06 19:27:46,425 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:46,425 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] [2021-12-06 19:27:46,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-06 19:27:46,425 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:46,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:46,426 INFO L85 PathProgramCache]: Analyzing trace with hash 141096883, now seen corresponding path program 1 times [2021-12-06 19:27:46,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:46,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198266300] [2021-12-06 19:27:46,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:46,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:46,500 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 19:27:46,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:46,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198266300] [2021-12-06 19:27:46,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198266300] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:46,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:46,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:27:46,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625726884] [2021-12-06 19:27:46,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:46,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:27:46,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:46,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:27:46,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:27:46,501 INFO L87 Difference]: Start difference. First operand 1543 states and 2167 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:48,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:48,022 INFO L93 Difference]: Finished difference Result 2566 states and 3577 transitions. [2021-12-06 19:27:48,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:27:48,022 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-06 19:27:48,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:48,025 INFO L225 Difference]: With dead ends: 2566 [2021-12-06 19:27:48,025 INFO L226 Difference]: Without dead ends: 2561 [2021-12-06 19:27:48,025 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 19:27:48,025 INFO L933 BasicCegarLoop]: 828 mSDtfsCounter, 4079 mSDsluCounter, 2581 mSDsCounter, 0 mSdLazyCounter, 3064 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4079 SdHoareTripleChecker+Valid, 3409 SdHoareTripleChecker+Invalid, 3298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 3064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:48,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4079 Valid, 3409 Invalid, 3298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 3064 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:27:48,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-06 19:27:48,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-06 19:27:48,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4306472919418758) internal successors, (2166), 1542 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:48,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2166 transitions. [2021-12-06 19:27:48,187 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2166 transitions. Word has length 111 [2021-12-06 19:27:48,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:48,187 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2166 transitions. [2021-12-06 19:27:48,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:48,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2166 transitions. [2021-12-06 19:27:48,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-06 19:27:48,189 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:48,189 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:27:48,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-06 19:27:48,189 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:48,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:48,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1756608252, now seen corresponding path program 1 times [2021-12-06 19:27:48,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:48,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640787074] [2021-12-06 19:27:48,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:48,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:48,268 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 19:27:48,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:48,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640787074] [2021-12-06 19:27:48,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640787074] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:48,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:48,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:27:48,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247323235] [2021-12-06 19:27:48,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:48,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:27:48,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:48,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:27:48,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:27:48,269 INFO L87 Difference]: Start difference. First operand 1543 states and 2166 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:49,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:49,652 INFO L93 Difference]: Finished difference Result 2729 states and 3823 transitions. [2021-12-06 19:27:49,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:27:49,653 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-06 19:27:49,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:49,655 INFO L225 Difference]: With dead ends: 2729 [2021-12-06 19:27:49,655 INFO L226 Difference]: Without dead ends: 2561 [2021-12-06 19:27:49,656 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 19:27:49,656 INFO L933 BasicCegarLoop]: 828 mSDtfsCounter, 4073 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 3059 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4073 SdHoareTripleChecker+Valid, 3412 SdHoareTripleChecker+Invalid, 3293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 3059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:49,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4073 Valid, 3412 Invalid, 3293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 3059 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-06 19:27:49,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-06 19:27:49,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-06 19:27:49,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.42998678996037) internal successors, (2165), 1542 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:49,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2165 transitions. [2021-12-06 19:27:49,820 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2165 transitions. Word has length 111 [2021-12-06 19:27:49,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:49,820 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2165 transitions. [2021-12-06 19:27:49,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:49,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2165 transitions. [2021-12-06 19:27:49,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-06 19:27:49,822 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:49,822 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] [2021-12-06 19:27:49,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-06 19:27:49,823 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:49,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:49,823 INFO L85 PathProgramCache]: Analyzing trace with hash 818178437, now seen corresponding path program 1 times [2021-12-06 19:27:49,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:49,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072066442] [2021-12-06 19:27:49,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:49,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:49,895 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 19:27:49,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:49,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072066442] [2021-12-06 19:27:49,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072066442] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:49,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:49,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:27:49,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652360193] [2021-12-06 19:27:49,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:49,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:27:49,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:49,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:27:49,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:27:49,896 INFO L87 Difference]: Start difference. First operand 1543 states and 2165 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:51,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:51,371 INFO L93 Difference]: Finished difference Result 2727 states and 3819 transitions. [2021-12-06 19:27:51,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:27:51,372 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-06 19:27:51,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:51,373 INFO L225 Difference]: With dead ends: 2727 [2021-12-06 19:27:51,374 INFO L226 Difference]: Without dead ends: 2561 [2021-12-06 19:27:51,374 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 19:27:51,375 INFO L933 BasicCegarLoop]: 827 mSDtfsCounter, 5906 mSDsluCounter, 2581 mSDsCounter, 0 mSdLazyCounter, 3060 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5906 SdHoareTripleChecker+Valid, 3408 SdHoareTripleChecker+Invalid, 3425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 3060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:51,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5906 Valid, 3408 Invalid, 3425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 3060 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:27:51,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-06 19:27:51,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-06 19:27:51,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.429326287978864) internal successors, (2164), 1542 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:51,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2164 transitions. [2021-12-06 19:27:51,542 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2164 transitions. Word has length 111 [2021-12-06 19:27:51,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:51,542 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2164 transitions. [2021-12-06 19:27:51,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:51,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2164 transitions. [2021-12-06 19:27:51,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-06 19:27:51,543 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:51,544 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] [2021-12-06 19:27:51,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-06 19:27:51,544 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:51,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:51,544 INFO L85 PathProgramCache]: Analyzing trace with hash 265888723, now seen corresponding path program 1 times [2021-12-06 19:27:51,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:51,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831055756] [2021-12-06 19:27:51,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:51,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:51,613 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 19:27:51,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:51,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831055756] [2021-12-06 19:27:51,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831055756] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:51,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:51,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:27:51,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926663499] [2021-12-06 19:27:51,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:51,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:27:51,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:51,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:27:51,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:27:51,615 INFO L87 Difference]: Start difference. First operand 1543 states and 2164 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:53,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:53,091 INFO L93 Difference]: Finished difference Result 2729 states and 3819 transitions. [2021-12-06 19:27:53,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:27:53,092 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-06 19:27:53,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:53,093 INFO L225 Difference]: With dead ends: 2729 [2021-12-06 19:27:53,093 INFO L226 Difference]: Without dead ends: 2561 [2021-12-06 19:27:53,094 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 19:27:53,094 INFO L933 BasicCegarLoop]: 828 mSDtfsCounter, 5906 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 3049 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5906 SdHoareTripleChecker+Valid, 3412 SdHoareTripleChecker+Invalid, 3413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 3049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:53,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5906 Valid, 3412 Invalid, 3413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 3049 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:27:53,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-06 19:27:53,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-06 19:27:53,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.428665785997358) internal successors, (2163), 1542 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:53,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2163 transitions. [2021-12-06 19:27:53,259 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2163 transitions. Word has length 111 [2021-12-06 19:27:53,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:53,259 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2163 transitions. [2021-12-06 19:27:53,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:53,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2163 transitions. [2021-12-06 19:27:53,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-06 19:27:53,261 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:53,261 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] [2021-12-06 19:27:53,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-06 19:27:53,261 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:53,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:53,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1781913043, now seen corresponding path program 1 times [2021-12-06 19:27:53,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:53,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338075733] [2021-12-06 19:27:53,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:53,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:53,344 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 19:27:53,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:53,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338075733] [2021-12-06 19:27:53,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338075733] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:53,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:53,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:27:53,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431446409] [2021-12-06 19:27:53,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:53,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:27:53,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:53,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:27:53,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:27:53,345 INFO L87 Difference]: Start difference. First operand 1543 states and 2163 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:55,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:55,310 INFO L93 Difference]: Finished difference Result 2889 states and 4096 transitions. [2021-12-06 19:27:55,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:27:55,311 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-06 19:27:55,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:55,313 INFO L225 Difference]: With dead ends: 2889 [2021-12-06 19:27:55,313 INFO L226 Difference]: Without dead ends: 2698 [2021-12-06 19:27:55,313 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 19:27:55,314 INFO L933 BasicCegarLoop]: 1164 mSDtfsCounter, 6341 mSDsluCounter, 4754 mSDsCounter, 0 mSdLazyCounter, 4786 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6341 SdHoareTripleChecker+Valid, 5918 SdHoareTripleChecker+Invalid, 4883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 4786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:55,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6341 Valid, 5918 Invalid, 4883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 4786 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-06 19:27:55,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-06 19:27:55,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-06 19:27:55,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4280052840158521) internal successors, (2162), 1542 states have internal predecessors, (2162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:55,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2162 transitions. [2021-12-06 19:27:55,491 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2162 transitions. Word has length 111 [2021-12-06 19:27:55,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:55,491 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2162 transitions. [2021-12-06 19:27:55,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:55,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2162 transitions. [2021-12-06 19:27:55,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-06 19:27:55,493 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:55,493 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] [2021-12-06 19:27:55,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-06 19:27:55,493 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:55,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:55,493 INFO L85 PathProgramCache]: Analyzing trace with hash 484023005, now seen corresponding path program 1 times [2021-12-06 19:27:55,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:55,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607768573] [2021-12-06 19:27:55,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:55,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:55,559 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 19:27:55,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:55,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607768573] [2021-12-06 19:27:55,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607768573] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:55,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:55,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:27:55,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907578846] [2021-12-06 19:27:55,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:55,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:27:55,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:55,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:27:55,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:27:55,560 INFO L87 Difference]: Start difference. First operand 1543 states and 2162 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:57,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:57,083 INFO L93 Difference]: Finished difference Result 2952 states and 4179 transitions. [2021-12-06 19:27:57,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:27:57,083 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-06 19:27:57,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:57,085 INFO L225 Difference]: With dead ends: 2952 [2021-12-06 19:27:57,085 INFO L226 Difference]: Without dead ends: 2722 [2021-12-06 19:27:57,086 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 19:27:57,086 INFO L933 BasicCegarLoop]: 1119 mSDtfsCounter, 7466 mSDsluCounter, 3435 mSDsCounter, 0 mSdLazyCounter, 3685 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7466 SdHoareTripleChecker+Valid, 4554 SdHoareTripleChecker+Invalid, 3755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:57,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7466 Valid, 4554 Invalid, 3755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 3685 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:27:57,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2021-12-06 19:27:57,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 1543. [2021-12-06 19:27:57,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4273447820343461) internal successors, (2161), 1542 states have internal predecessors, (2161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:57,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2161 transitions. [2021-12-06 19:27:57,267 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2161 transitions. Word has length 111 [2021-12-06 19:27:57,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:57,267 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2161 transitions. [2021-12-06 19:27:57,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:57,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2161 transitions. [2021-12-06 19:27:57,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-06 19:27:57,268 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:57,269 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] [2021-12-06 19:27:57,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-06 19:27:57,269 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:57,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:57,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1272512024, now seen corresponding path program 1 times [2021-12-06 19:27:57,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:57,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503962919] [2021-12-06 19:27:57,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:57,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:57,341 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 19:27:57,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:57,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503962919] [2021-12-06 19:27:57,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503962919] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:57,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:57,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:27:57,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356907340] [2021-12-06 19:27:57,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:57,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:27:57,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:57,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:27:57,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:27:57,342 INFO L87 Difference]: Start difference. First operand 1543 states and 2161 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:58,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:58,794 INFO L93 Difference]: Finished difference Result 2729 states and 3815 transitions. [2021-12-06 19:27:58,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:27:58,794 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-06 19:27:58,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:58,796 INFO L225 Difference]: With dead ends: 2729 [2021-12-06 19:27:58,796 INFO L226 Difference]: Without dead ends: 2561 [2021-12-06 19:27:58,796 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 19:27:58,797 INFO L933 BasicCegarLoop]: 827 mSDtfsCounter, 4056 mSDsluCounter, 2580 mSDsCounter, 0 mSdLazyCounter, 3043 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4056 SdHoareTripleChecker+Valid, 3407 SdHoareTripleChecker+Invalid, 3277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 3043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:58,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4056 Valid, 3407 Invalid, 3277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 3043 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:27:58,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-06 19:27:58,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-06 19:27:58,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.42668428005284) internal successors, (2160), 1542 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:58,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2160 transitions. [2021-12-06 19:27:58,975 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2160 transitions. Word has length 111 [2021-12-06 19:27:58,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:58,975 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2160 transitions. [2021-12-06 19:27:58,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:27:58,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2160 transitions. [2021-12-06 19:27:58,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-06 19:27:58,977 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:58,977 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] [2021-12-06 19:27:58,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-06 19:27:58,977 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:27:58,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:58,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1406535780, now seen corresponding path program 1 times [2021-12-06 19:27:58,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:58,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642493235] [2021-12-06 19:27:58,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:58,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:59,048 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 19:27:59,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:59,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642493235] [2021-12-06 19:27:59,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642493235] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:59,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:59,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:27:59,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125695167] [2021-12-06 19:27:59,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:59,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:27:59,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:59,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:27:59,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:27:59,050 INFO L87 Difference]: Start difference. First operand 1543 states and 2160 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:00,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:00,839 INFO L93 Difference]: Finished difference Result 2889 states and 4093 transitions. [2021-12-06 19:28:00,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:00,839 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-06 19:28:00,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:00,841 INFO L225 Difference]: With dead ends: 2889 [2021-12-06 19:28:00,841 INFO L226 Difference]: Without dead ends: 2698 [2021-12-06 19:28:00,842 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 19:28:00,842 INFO L933 BasicCegarLoop]: 1281 mSDtfsCounter, 3306 mSDsluCounter, 4000 mSDsCounter, 0 mSdLazyCounter, 4286 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3306 SdHoareTripleChecker+Valid, 5281 SdHoareTripleChecker+Invalid, 4343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 4286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:00,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3306 Valid, 5281 Invalid, 4343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 4286 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:28:00,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-06 19:28:01,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-06 19:28:01,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4260237780713343) internal successors, (2159), 1542 states have internal predecessors, (2159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:01,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2159 transitions. [2021-12-06 19:28:01,025 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2159 transitions. Word has length 111 [2021-12-06 19:28:01,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:01,025 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2159 transitions. [2021-12-06 19:28:01,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:01,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2159 transitions. [2021-12-06 19:28:01,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-06 19:28:01,027 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:01,027 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] [2021-12-06 19:28:01,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-06 19:28:01,027 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:01,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:01,028 INFO L85 PathProgramCache]: Analyzing trace with hash 2135295553, now seen corresponding path program 1 times [2021-12-06 19:28:01,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:01,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339127074] [2021-12-06 19:28:01,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:01,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:01,108 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 19:28:01,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:01,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339127074] [2021-12-06 19:28:01,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339127074] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:01,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:01,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:01,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782844706] [2021-12-06 19:28:01,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:01,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:01,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:01,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:01,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:01,110 INFO L87 Difference]: Start difference. First operand 1543 states and 2159 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:02,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:02,817 INFO L93 Difference]: Finished difference Result 3120 states and 4421 transitions. [2021-12-06 19:28:02,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:02,817 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-06 19:28:02,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:02,819 INFO L225 Difference]: With dead ends: 3120 [2021-12-06 19:28:02,819 INFO L226 Difference]: Without dead ends: 2754 [2021-12-06 19:28:02,820 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 19:28:02,820 INFO L933 BasicCegarLoop]: 1209 mSDtfsCounter, 6844 mSDsluCounter, 3921 mSDsCounter, 0 mSdLazyCounter, 3975 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6844 SdHoareTripleChecker+Valid, 5130 SdHoareTripleChecker+Invalid, 4017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 3975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:02,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6844 Valid, 5130 Invalid, 4017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 3975 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:28:02,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2021-12-06 19:28:03,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1543. [2021-12-06 19:28:03,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4247027741083222) internal successors, (2157), 1542 states have internal predecessors, (2157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:03,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2157 transitions. [2021-12-06 19:28:03,013 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2157 transitions. Word has length 111 [2021-12-06 19:28:03,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:03,013 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2157 transitions. [2021-12-06 19:28:03,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:03,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2157 transitions. [2021-12-06 19:28:03,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-06 19:28:03,015 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:03,015 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] [2021-12-06 19:28:03,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-06 19:28:03,015 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:03,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:03,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1814914143, now seen corresponding path program 1 times [2021-12-06 19:28:03,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:03,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943605728] [2021-12-06 19:28:03,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:03,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:03,089 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 19:28:03,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:03,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943605728] [2021-12-06 19:28:03,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943605728] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:03,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:03,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:03,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065310358] [2021-12-06 19:28:03,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:03,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:03,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:03,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:03,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:03,091 INFO L87 Difference]: Start difference. First operand 1543 states and 2157 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:04,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:04,662 INFO L93 Difference]: Finished difference Result 2731 states and 3812 transitions. [2021-12-06 19:28:04,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:04,663 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-06 19:28:04,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:04,664 INFO L225 Difference]: With dead ends: 2731 [2021-12-06 19:28:04,665 INFO L226 Difference]: Without dead ends: 2561 [2021-12-06 19:28:04,665 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 19:28:04,665 INFO L933 BasicCegarLoop]: 828 mSDtfsCounter, 5878 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 3027 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5878 SdHoareTripleChecker+Valid, 3412 SdHoareTripleChecker+Invalid, 3392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 3027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:04,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5878 Valid, 3412 Invalid, 3392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 3027 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:28:04,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-06 19:28:04,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-06 19:28:04,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4233817701453104) internal successors, (2155), 1542 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:04,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2155 transitions. [2021-12-06 19:28:04,857 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2155 transitions. Word has length 111 [2021-12-06 19:28:04,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:04,857 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2155 transitions. [2021-12-06 19:28:04,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:04,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2155 transitions. [2021-12-06 19:28:04,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-06 19:28:04,859 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:04,859 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] [2021-12-06 19:28:04,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-06 19:28:04,859 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:04,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:04,859 INFO L85 PathProgramCache]: Analyzing trace with hash 198106909, now seen corresponding path program 1 times [2021-12-06 19:28:04,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:04,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912027777] [2021-12-06 19:28:04,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:04,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:04,932 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 19:28:04,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:04,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912027777] [2021-12-06 19:28:04,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912027777] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:04,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:04,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:04,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646760747] [2021-12-06 19:28:04,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:04,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:04,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:04,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:04,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:04,933 INFO L87 Difference]: Start difference. First operand 1543 states and 2155 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:06,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:06,680 INFO L93 Difference]: Finished difference Result 2908 states and 4114 transitions. [2021-12-06 19:28:06,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:06,680 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-06 19:28:06,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:06,682 INFO L225 Difference]: With dead ends: 2908 [2021-12-06 19:28:06,682 INFO L226 Difference]: Without dead ends: 2698 [2021-12-06 19:28:06,683 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 19:28:06,683 INFO L933 BasicCegarLoop]: 1285 mSDtfsCounter, 4820 mSDsluCounter, 4018 mSDsCounter, 0 mSdLazyCounter, 4265 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4820 SdHoareTripleChecker+Valid, 5303 SdHoareTripleChecker+Invalid, 4350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 4265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:06,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4820 Valid, 5303 Invalid, 4350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 4265 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:28:06,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-06 19:28:06,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-06 19:28:06,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4220607661822986) internal successors, (2153), 1542 states have internal predecessors, (2153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:06,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2153 transitions. [2021-12-06 19:28:06,889 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2153 transitions. Word has length 111 [2021-12-06 19:28:06,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:06,890 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2153 transitions. [2021-12-06 19:28:06,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:06,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2153 transitions. [2021-12-06 19:28:06,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-06 19:28:06,891 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:06,891 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] [2021-12-06 19:28:06,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-06 19:28:06,892 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:06,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:06,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1538279842, now seen corresponding path program 1 times [2021-12-06 19:28:06,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:06,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87083310] [2021-12-06 19:28:06,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:06,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:07,006 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 19:28:07,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:07,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87083310] [2021-12-06 19:28:07,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87083310] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:07,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:07,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:28:07,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884872567] [2021-12-06 19:28:07,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:07,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:28:07,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:07,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:28:07,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:28:07,007 INFO L87 Difference]: Start difference. First operand 1543 states and 2153 transitions. Second operand has 12 states, 12 states have (on average 9.25) internal successors, (111), 11 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:10,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:10,869 INFO L93 Difference]: Finished difference Result 4868 states and 6969 transitions. [2021-12-06 19:28:10,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:28:10,869 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.25) internal successors, (111), 11 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-06 19:28:10,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:10,872 INFO L225 Difference]: With dead ends: 4868 [2021-12-06 19:28:10,872 INFO L226 Difference]: Without dead ends: 4448 [2021-12-06 19:28:10,873 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 19:28:10,873 INFO L933 BasicCegarLoop]: 1749 mSDtfsCounter, 10794 mSDsluCounter, 5619 mSDsCounter, 0 mSdLazyCounter, 6106 mSolverCounterSat, 822 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10794 SdHoareTripleChecker+Valid, 7368 SdHoareTripleChecker+Invalid, 6928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 822 IncrementalHoareTripleChecker+Valid, 6106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:10,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10794 Valid, 7368 Invalid, 6928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [822 Valid, 6106 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-06 19:28:10,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4448 states. [2021-12-06 19:28:11,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4448 to 1551. [2021-12-06 19:28:11,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1522 states have (on average 1.4198423127463864) internal successors, (2161), 1550 states have internal predecessors, (2161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:11,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2161 transitions. [2021-12-06 19:28:11,083 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2161 transitions. Word has length 111 [2021-12-06 19:28:11,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:11,083 INFO L470 AbstractCegarLoop]: Abstraction has 1551 states and 2161 transitions. [2021-12-06 19:28:11,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.25) internal successors, (111), 11 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:11,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2161 transitions. [2021-12-06 19:28:11,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-06 19:28:11,085 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:11,085 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] [2021-12-06 19:28:11,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-06 19:28:11,085 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:11,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:11,085 INFO L85 PathProgramCache]: Analyzing trace with hash -33307795, now seen corresponding path program 1 times [2021-12-06 19:28:11,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:11,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237997474] [2021-12-06 19:28:11,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:11,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:11,161 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 19:28:11,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:11,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237997474] [2021-12-06 19:28:11,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237997474] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:11,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:11,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:11,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729852097] [2021-12-06 19:28:11,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:11,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:11,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:11,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:11,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:11,163 INFO L87 Difference]: Start difference. First operand 1551 states and 2161 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:12,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:12,896 INFO L93 Difference]: Finished difference Result 3174 states and 4479 transitions. [2021-12-06 19:28:12,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:12,897 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-12-06 19:28:12,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:12,899 INFO L225 Difference]: With dead ends: 3174 [2021-12-06 19:28:12,899 INFO L226 Difference]: Without dead ends: 2754 [2021-12-06 19:28:12,900 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 19:28:12,900 INFO L933 BasicCegarLoop]: 1328 mSDtfsCounter, 3539 mSDsluCounter, 3846 mSDsCounter, 0 mSdLazyCounter, 4086 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3539 SdHoareTripleChecker+Valid, 5174 SdHoareTripleChecker+Invalid, 4108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 4086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:12,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3539 Valid, 5174 Invalid, 4108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 4086 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:28:12,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2021-12-06 19:28:13,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1543. [2021-12-06 19:28:13,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4207397622192866) internal successors, (2151), 1542 states have internal predecessors, (2151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:13,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2151 transitions. [2021-12-06 19:28:13,108 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2151 transitions. Word has length 112 [2021-12-06 19:28:13,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:13,108 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2151 transitions. [2021-12-06 19:28:13,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:13,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2151 transitions. [2021-12-06 19:28:13,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:13,110 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:13,110 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] [2021-12-06 19:28:13,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-06 19:28:13,110 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:13,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:13,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1188810924, now seen corresponding path program 1 times [2021-12-06 19:28:13,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:13,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104204939] [2021-12-06 19:28:13,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:13,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:13,185 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 19:28:13,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:13,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104204939] [2021-12-06 19:28:13,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104204939] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:13,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:13,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:13,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138352558] [2021-12-06 19:28:13,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:13,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:13,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:13,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:13,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:13,187 INFO L87 Difference]: Start difference. First operand 1543 states and 2151 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:14,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:14,908 INFO L93 Difference]: Finished difference Result 2889 states and 4079 transitions. [2021-12-06 19:28:14,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:14,909 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:28:14,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:14,910 INFO L225 Difference]: With dead ends: 2889 [2021-12-06 19:28:14,910 INFO L226 Difference]: Without dead ends: 2698 [2021-12-06 19:28:14,911 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 19:28:14,911 INFO L933 BasicCegarLoop]: 1281 mSDtfsCounter, 3405 mSDsluCounter, 3947 mSDsCounter, 0 mSdLazyCounter, 4203 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3405 SdHoareTripleChecker+Valid, 5228 SdHoareTripleChecker+Invalid, 4261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 4203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:14,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3405 Valid, 5228 Invalid, 4261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 4203 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:28:14,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-06 19:28:15,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-06 19:28:15,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4200792602377807) internal successors, (2150), 1542 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:15,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2150 transitions. [2021-12-06 19:28:15,123 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2150 transitions. Word has length 113 [2021-12-06 19:28:15,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:15,123 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2150 transitions. [2021-12-06 19:28:15,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:15,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2150 transitions. [2021-12-06 19:28:15,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:15,124 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:15,125 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] [2021-12-06 19:28:15,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-12-06 19:28:15,125 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:15,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:15,125 INFO L85 PathProgramCache]: Analyzing trace with hash -202027273, now seen corresponding path program 1 times [2021-12-06 19:28:15,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:15,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012833661] [2021-12-06 19:28:15,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:15,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:15,205 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 19:28:15,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:15,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012833661] [2021-12-06 19:28:15,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012833661] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:15,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:15,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:15,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599399808] [2021-12-06 19:28:15,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:15,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:15,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:15,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:15,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:15,206 INFO L87 Difference]: Start difference. First operand 1543 states and 2150 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:16,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:16,776 INFO L93 Difference]: Finished difference Result 2729 states and 3801 transitions. [2021-12-06 19:28:16,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:16,776 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:28:16,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:16,778 INFO L225 Difference]: With dead ends: 2729 [2021-12-06 19:28:16,778 INFO L226 Difference]: Without dead ends: 2561 [2021-12-06 19:28:16,779 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 19:28:16,779 INFO L933 BasicCegarLoop]: 828 mSDtfsCounter, 5859 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 3013 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5859 SdHoareTripleChecker+Valid, 3412 SdHoareTripleChecker+Invalid, 3378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 3013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:16,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5859 Valid, 3412 Invalid, 3378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 3013 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:28:16,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-06 19:28:16,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-06 19:28:16,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4194187582562747) internal successors, (2149), 1542 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:16,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2149 transitions. [2021-12-06 19:28:16,987 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2149 transitions. Word has length 113 [2021-12-06 19:28:16,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:16,987 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2149 transitions. [2021-12-06 19:28:16,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:16,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2149 transitions. [2021-12-06 19:28:16,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:16,989 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:16,989 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:28:16,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-12-06 19:28:16,989 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:16,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:16,990 INFO L85 PathProgramCache]: Analyzing trace with hash -552255394, now seen corresponding path program 1 times [2021-12-06 19:28:16,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:16,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726301660] [2021-12-06 19:28:16,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:16,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:17,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:17,056 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 19:28:17,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:17,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726301660] [2021-12-06 19:28:17,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726301660] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:17,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:17,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:17,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246954058] [2021-12-06 19:28:17,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:17,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:17,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:17,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:17,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:17,058 INFO L87 Difference]: Start difference. First operand 1543 states and 2149 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:18,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:18,642 INFO L93 Difference]: Finished difference Result 2727 states and 3797 transitions. [2021-12-06 19:28:18,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:18,642 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:28:18,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:18,644 INFO L225 Difference]: With dead ends: 2727 [2021-12-06 19:28:18,644 INFO L226 Difference]: Without dead ends: 2561 [2021-12-06 19:28:18,645 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 19:28:18,645 INFO L933 BasicCegarLoop]: 827 mSDtfsCounter, 7677 mSDsluCounter, 2581 mSDsCounter, 0 mSdLazyCounter, 3014 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7677 SdHoareTripleChecker+Valid, 3408 SdHoareTripleChecker+Invalid, 3509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 3014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:18,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7677 Valid, 3408 Invalid, 3509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 3014 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:28:18,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-06 19:28:18,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-06 19:28:18,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.418758256274769) internal successors, (2148), 1542 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:18,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2148 transitions. [2021-12-06 19:28:18,862 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2148 transitions. Word has length 113 [2021-12-06 19:28:18,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:18,862 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2148 transitions. [2021-12-06 19:28:18,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:18,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2148 transitions. [2021-12-06 19:28:18,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:18,864 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:18,864 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] [2021-12-06 19:28:18,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-12-06 19:28:18,864 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:18,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:18,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1255392424, now seen corresponding path program 1 times [2021-12-06 19:28:18,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:18,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921697745] [2021-12-06 19:28:18,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:18,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:18,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:28:18,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:18,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921697745] [2021-12-06 19:28:18,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921697745] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:18,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:18,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:18,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611389147] [2021-12-06 19:28:18,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:18,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:18,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:18,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:18,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:18,943 INFO L87 Difference]: Start difference. First operand 1543 states and 2148 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:21,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:21,051 INFO L93 Difference]: Finished difference Result 2883 states and 4069 transitions. [2021-12-06 19:28:21,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:21,051 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:28:21,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:21,053 INFO L225 Difference]: With dead ends: 2883 [2021-12-06 19:28:21,053 INFO L226 Difference]: Without dead ends: 2698 [2021-12-06 19:28:21,054 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 19:28:21,054 INFO L933 BasicCegarLoop]: 1280 mSDtfsCounter, 6092 mSDsluCounter, 5106 mSDsCounter, 0 mSdLazyCounter, 5035 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6092 SdHoareTripleChecker+Valid, 6386 SdHoareTripleChecker+Invalid, 5129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 5035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:21,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6092 Valid, 6386 Invalid, 5129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 5035 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-06 19:28:21,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-06 19:28:21,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-06 19:28:21,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.418097754293263) internal successors, (2147), 1542 states have internal predecessors, (2147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:21,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2147 transitions. [2021-12-06 19:28:21,276 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2147 transitions. Word has length 113 [2021-12-06 19:28:21,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:21,276 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2147 transitions. [2021-12-06 19:28:21,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:21,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2147 transitions. [2021-12-06 19:28:21,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:21,279 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:21,279 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] [2021-12-06 19:28:21,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-12-06 19:28:21,279 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:21,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:21,280 INFO L85 PathProgramCache]: Analyzing trace with hash 154895254, now seen corresponding path program 1 times [2021-12-06 19:28:21,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:21,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137830372] [2021-12-06 19:28:21,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:21,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:21,352 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 19:28:21,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:21,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137830372] [2021-12-06 19:28:21,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137830372] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:21,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:21,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:21,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877882300] [2021-12-06 19:28:21,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:21,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:21,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:21,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:21,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:21,354 INFO L87 Difference]: Start difference. First operand 1543 states and 2147 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:22,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:22,898 INFO L93 Difference]: Finished difference Result 2727 states and 3794 transitions. [2021-12-06 19:28:22,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:22,899 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:28:22,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:22,900 INFO L225 Difference]: With dead ends: 2727 [2021-12-06 19:28:22,900 INFO L226 Difference]: Without dead ends: 2561 [2021-12-06 19:28:22,901 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 19:28:22,901 INFO L933 BasicCegarLoop]: 827 mSDtfsCounter, 4023 mSDsluCounter, 2581 mSDsCounter, 0 mSdLazyCounter, 3006 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4023 SdHoareTripleChecker+Valid, 3408 SdHoareTripleChecker+Invalid, 3240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 3006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:22,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4023 Valid, 3408 Invalid, 3240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 3006 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-06 19:28:22,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-06 19:28:23,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-06 19:28:23,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4174372523117569) internal successors, (2146), 1542 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:23,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2146 transitions. [2021-12-06 19:28:23,121 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2146 transitions. Word has length 113 [2021-12-06 19:28:23,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:23,121 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2146 transitions. [2021-12-06 19:28:23,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:23,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2146 transitions. [2021-12-06 19:28:23,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:23,123 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:23,123 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] [2021-12-06 19:28:23,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-12-06 19:28:23,123 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:23,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:23,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1962543072, now seen corresponding path program 1 times [2021-12-06 19:28:23,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:23,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292844] [2021-12-06 19:28:23,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:23,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:23,190 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 19:28:23,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:23,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292844] [2021-12-06 19:28:23,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292844] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:23,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:23,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:23,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835290164] [2021-12-06 19:28:23,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:23,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:23,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:23,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:23,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:23,192 INFO L87 Difference]: Start difference. First operand 1543 states and 2146 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:24,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:24,731 INFO L93 Difference]: Finished difference Result 2727 states and 3792 transitions. [2021-12-06 19:28:24,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:24,731 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:28:24,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:24,733 INFO L225 Difference]: With dead ends: 2727 [2021-12-06 19:28:24,733 INFO L226 Difference]: Without dead ends: 2561 [2021-12-06 19:28:24,734 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 19:28:24,734 INFO L933 BasicCegarLoop]: 827 mSDtfsCounter, 4014 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 2998 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4014 SdHoareTripleChecker+Valid, 3412 SdHoareTripleChecker+Invalid, 3232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 2998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:24,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4014 Valid, 3412 Invalid, 3232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 2998 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-06 19:28:24,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2021-12-06 19:28:24,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1543. [2021-12-06 19:28:24,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.416776750330251) internal successors, (2145), 1542 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:24,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2145 transitions. [2021-12-06 19:28:24,962 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2145 transitions. Word has length 113 [2021-12-06 19:28:24,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:24,963 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2145 transitions. [2021-12-06 19:28:24,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:24,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2145 transitions. [2021-12-06 19:28:24,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:24,964 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:24,964 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] [2021-12-06 19:28:24,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-12-06 19:28:24,965 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:24,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:24,965 INFO L85 PathProgramCache]: Analyzing trace with hash -636186298, now seen corresponding path program 1 times [2021-12-06 19:28:24,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:24,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433192918] [2021-12-06 19:28:24,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:24,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:25,035 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 19:28:25,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:25,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433192918] [2021-12-06 19:28:25,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433192918] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:25,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:25,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:25,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323470028] [2021-12-06 19:28:25,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:25,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:25,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:25,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:25,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:25,036 INFO L87 Difference]: Start difference. First operand 1543 states and 2145 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:27,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:27,010 INFO L93 Difference]: Finished difference Result 2883 states and 4063 transitions. [2021-12-06 19:28:27,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:27,010 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:28:27,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:27,012 INFO L225 Difference]: With dead ends: 2883 [2021-12-06 19:28:27,012 INFO L226 Difference]: Without dead ends: 2698 [2021-12-06 19:28:27,013 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 19:28:27,013 INFO L933 BasicCegarLoop]: 1328 mSDtfsCounter, 4609 mSDsluCounter, 4151 mSDsCounter, 0 mSdLazyCounter, 4412 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4609 SdHoareTripleChecker+Valid, 5479 SdHoareTripleChecker+Invalid, 4494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 4412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:27,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4609 Valid, 5479 Invalid, 4494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 4412 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:28:27,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-06 19:28:27,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-06 19:28:27,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.416116248348745) internal successors, (2144), 1542 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:27,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2144 transitions. [2021-12-06 19:28:27,244 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2144 transitions. Word has length 113 [2021-12-06 19:28:27,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:27,244 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2144 transitions. [2021-12-06 19:28:27,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:27,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2144 transitions. [2021-12-06 19:28:27,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:27,246 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:27,246 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] [2021-12-06 19:28:27,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-12-06 19:28:27,246 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:27,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:27,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1853918876, now seen corresponding path program 1 times [2021-12-06 19:28:27,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:27,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816860631] [2021-12-06 19:28:27,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:27,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:27,324 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 19:28:27,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:27,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816860631] [2021-12-06 19:28:27,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816860631] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:27,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:27,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:27,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215514803] [2021-12-06 19:28:27,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:27,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:27,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:27,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:27,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:27,326 INFO L87 Difference]: Start difference. First operand 1543 states and 2144 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:29,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:29,267 INFO L93 Difference]: Finished difference Result 2828 states and 3964 transitions. [2021-12-06 19:28:29,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:29,267 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:28:29,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:29,269 INFO L225 Difference]: With dead ends: 2828 [2021-12-06 19:28:29,269 INFO L226 Difference]: Without dead ends: 2650 [2021-12-06 19:28:29,270 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 19:28:29,270 INFO L933 BasicCegarLoop]: 953 mSDtfsCounter, 6533 mSDsluCounter, 4029 mSDsCounter, 0 mSdLazyCounter, 4058 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6533 SdHoareTripleChecker+Valid, 4982 SdHoareTripleChecker+Invalid, 4244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 4058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:29,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6533 Valid, 4982 Invalid, 4244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 4058 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:28:29,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-06 19:28:29,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1543. [2021-12-06 19:28:29,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.415455746367239) internal successors, (2143), 1542 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:29,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2143 transitions. [2021-12-06 19:28:29,510 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2143 transitions. Word has length 113 [2021-12-06 19:28:29,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:29,510 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2143 transitions. [2021-12-06 19:28:29,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:29,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2143 transitions. [2021-12-06 19:28:29,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:29,511 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:29,511 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] [2021-12-06 19:28:29,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-12-06 19:28:29,511 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:29,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:29,512 INFO L85 PathProgramCache]: Analyzing trace with hash -120006090, now seen corresponding path program 1 times [2021-12-06 19:28:29,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:29,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393139381] [2021-12-06 19:28:29,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:29,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:29,583 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 19:28:29,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:29,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393139381] [2021-12-06 19:28:29,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393139381] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:29,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:29,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:29,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161257596] [2021-12-06 19:28:29,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:29,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:29,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:29,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:29,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:29,584 INFO L87 Difference]: Start difference. First operand 1543 states and 2143 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:31,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:31,406 INFO L93 Difference]: Finished difference Result 2898 states and 4075 transitions. [2021-12-06 19:28:31,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:31,406 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:28:31,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:31,408 INFO L225 Difference]: With dead ends: 2898 [2021-12-06 19:28:31,408 INFO L226 Difference]: Without dead ends: 2698 [2021-12-06 19:28:31,408 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 19:28:31,409 INFO L933 BasicCegarLoop]: 1281 mSDtfsCounter, 3290 mSDsluCounter, 3978 mSDsCounter, 0 mSdLazyCounter, 4192 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3290 SdHoareTripleChecker+Valid, 5259 SdHoareTripleChecker+Invalid, 4249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 4192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:31,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3290 Valid, 5259 Invalid, 4249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 4192 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:28:31,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-06 19:28:31,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1543. [2021-12-06 19:28:31,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.4147952443857332) internal successors, (2142), 1542 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:31,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2142 transitions. [2021-12-06 19:28:31,654 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2142 transitions. Word has length 113 [2021-12-06 19:28:31,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:31,654 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2142 transitions. [2021-12-06 19:28:31,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:31,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2142 transitions. [2021-12-06 19:28:31,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:31,655 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:31,655 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] [2021-12-06 19:28:31,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-12-06 19:28:31,656 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:31,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:31,656 INFO L85 PathProgramCache]: Analyzing trace with hash -2072946245, now seen corresponding path program 1 times [2021-12-06 19:28:31,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:31,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104408565] [2021-12-06 19:28:31,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:31,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:31,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:31,786 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 19:28:31,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:31,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104408565] [2021-12-06 19:28:31,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104408565] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:31,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:31,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:28:31,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042644182] [2021-12-06 19:28:31,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:31,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:28:31,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:31,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:28:31,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:28:31,787 INFO L87 Difference]: Start difference. First operand 1543 states and 2142 transitions. Second operand has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:35,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:35,170 INFO L93 Difference]: Finished difference Result 3800 states and 5401 transitions. [2021-12-06 19:28:35,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:28:35,170 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:28:35,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:35,173 INFO L225 Difference]: With dead ends: 3800 [2021-12-06 19:28:35,173 INFO L226 Difference]: Without dead ends: 3622 [2021-12-06 19:28:35,174 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 19:28:35,174 INFO L933 BasicCegarLoop]: 1074 mSDtfsCounter, 11722 mSDsluCounter, 3771 mSDsCounter, 0 mSdLazyCounter, 4043 mSolverCounterSat, 1246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11722 SdHoareTripleChecker+Valid, 4845 SdHoareTripleChecker+Invalid, 5289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 4043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:35,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11722 Valid, 4845 Invalid, 5289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1246 Valid, 4043 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-06 19:28:35,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2021-12-06 19:28:35,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 1547. [2021-12-06 19:28:35,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.4137022397891963) internal successors, (2146), 1546 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:35,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2146 transitions. [2021-12-06 19:28:35,440 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2146 transitions. Word has length 113 [2021-12-06 19:28:35,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:35,440 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2146 transitions. [2021-12-06 19:28:35,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:35,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2146 transitions. [2021-12-06 19:28:35,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:35,442 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:35,442 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] [2021-12-06 19:28:35,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-12-06 19:28:35,442 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:35,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:35,442 INFO L85 PathProgramCache]: Analyzing trace with hash 369909324, now seen corresponding path program 1 times [2021-12-06 19:28:35,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:35,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711249346] [2021-12-06 19:28:35,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:35,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:35,527 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 19:28:35,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:35,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711249346] [2021-12-06 19:28:35,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711249346] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:35,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:35,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:35,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421280172] [2021-12-06 19:28:35,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:35,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:35,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:35,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:35,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:35,528 INFO L87 Difference]: Start difference. First operand 1547 states and 2146 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:37,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:37,503 INFO L93 Difference]: Finished difference Result 2824 states and 3957 transitions. [2021-12-06 19:28:37,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:37,504 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:28:37,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:37,505 INFO L225 Difference]: With dead ends: 2824 [2021-12-06 19:28:37,506 INFO L226 Difference]: Without dead ends: 2650 [2021-12-06 19:28:37,506 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 19:28:37,506 INFO L933 BasicCegarLoop]: 970 mSDtfsCounter, 6492 mSDsluCounter, 4084 mSDsCounter, 0 mSdLazyCounter, 4085 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6492 SdHoareTripleChecker+Valid, 5054 SdHoareTripleChecker+Invalid, 4270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 4085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:37,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6492 Valid, 5054 Invalid, 4270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 4085 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:28:37,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-06 19:28:37,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1547. [2021-12-06 19:28:37,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.4130434782608696) internal successors, (2145), 1546 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:37,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2145 transitions. [2021-12-06 19:28:37,763 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2145 transitions. Word has length 113 [2021-12-06 19:28:37,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:37,763 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2145 transitions. [2021-12-06 19:28:37,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:37,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2145 transitions. [2021-12-06 19:28:37,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:37,764 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:37,764 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] [2021-12-06 19:28:37,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-12-06 19:28:37,764 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:37,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:37,765 INFO L85 PathProgramCache]: Analyzing trace with hash -2146354789, now seen corresponding path program 1 times [2021-12-06 19:28:37,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:37,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722668737] [2021-12-06 19:28:37,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:37,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:37,838 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 19:28:37,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:37,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722668737] [2021-12-06 19:28:37,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722668737] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:37,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:37,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:37,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390610976] [2021-12-06 19:28:37,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:37,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:37,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:37,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:37,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:37,840 INFO L87 Difference]: Start difference. First operand 1547 states and 2145 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:40,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:40,117 INFO L93 Difference]: Finished difference Result 2887 states and 4061 transitions. [2021-12-06 19:28:40,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:40,118 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:28:40,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:40,119 INFO L225 Difference]: With dead ends: 2887 [2021-12-06 19:28:40,119 INFO L226 Difference]: Without dead ends: 2702 [2021-12-06 19:28:40,120 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 19:28:40,120 INFO L933 BasicCegarLoop]: 1268 mSDtfsCounter, 6077 mSDsluCounter, 5069 mSDsCounter, 0 mSdLazyCounter, 4972 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6077 SdHoareTripleChecker+Valid, 6337 SdHoareTripleChecker+Invalid, 5066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 4972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:40,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6077 Valid, 6337 Invalid, 5066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 4972 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-06 19:28:40,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2021-12-06 19:28:40,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 1547. [2021-12-06 19:28:40,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.4123847167325427) internal successors, (2144), 1546 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:40,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2144 transitions. [2021-12-06 19:28:40,379 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2144 transitions. Word has length 113 [2021-12-06 19:28:40,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:40,379 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2144 transitions. [2021-12-06 19:28:40,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:40,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2144 transitions. [2021-12-06 19:28:40,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:40,380 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:40,381 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] [2021-12-06 19:28:40,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-12-06 19:28:40,381 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:40,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:40,381 INFO L85 PathProgramCache]: Analyzing trace with hash -2033236148, now seen corresponding path program 1 times [2021-12-06 19:28:40,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:40,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706804184] [2021-12-06 19:28:40,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:40,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:40,455 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 19:28:40,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:40,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706804184] [2021-12-06 19:28:40,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706804184] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:40,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:40,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:40,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974976202] [2021-12-06 19:28:40,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:40,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:40,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:40,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:40,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:40,456 INFO L87 Difference]: Start difference. First operand 1547 states and 2144 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:42,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:42,297 INFO L93 Difference]: Finished difference Result 2736 states and 3795 transitions. [2021-12-06 19:28:42,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:42,298 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:28:42,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:42,300 INFO L225 Difference]: With dead ends: 2736 [2021-12-06 19:28:42,300 INFO L226 Difference]: Without dead ends: 2565 [2021-12-06 19:28:42,300 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 19:28:42,300 INFO L933 BasicCegarLoop]: 843 mSDtfsCounter, 4570 mSDsluCounter, 2625 mSDsCounter, 0 mSdLazyCounter, 3018 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4570 SdHoareTripleChecker+Valid, 3468 SdHoareTripleChecker+Invalid, 3316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 3018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:42,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4570 Valid, 3468 Invalid, 3316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 3018 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:28:42,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2021-12-06 19:28:42,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 1547. [2021-12-06 19:28:42,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.411725955204216) internal successors, (2143), 1546 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:42,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2143 transitions. [2021-12-06 19:28:42,564 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2143 transitions. Word has length 113 [2021-12-06 19:28:42,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:42,564 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2143 transitions. [2021-12-06 19:28:42,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:42,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2143 transitions. [2021-12-06 19:28:42,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:42,565 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:42,565 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] [2021-12-06 19:28:42,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-12-06 19:28:42,565 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:42,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:42,566 INFO L85 PathProgramCache]: Analyzing trace with hash 409402947, now seen corresponding path program 1 times [2021-12-06 19:28:42,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:42,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792139681] [2021-12-06 19:28:42,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:42,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:42,636 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 19:28:42,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:42,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792139681] [2021-12-06 19:28:42,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792139681] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:42,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:42,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:42,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022260870] [2021-12-06 19:28:42,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:42,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:42,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:42,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:42,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:42,637 INFO L87 Difference]: Start difference. First operand 1547 states and 2143 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:44,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:44,507 INFO L93 Difference]: Finished difference Result 2733 states and 3790 transitions. [2021-12-06 19:28:44,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:44,508 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:28:44,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:44,509 INFO L225 Difference]: With dead ends: 2733 [2021-12-06 19:28:44,509 INFO L226 Difference]: Without dead ends: 2565 [2021-12-06 19:28:44,510 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 19:28:44,510 INFO L933 BasicCegarLoop]: 842 mSDtfsCounter, 5764 mSDsluCounter, 2625 mSDsCounter, 0 mSdLazyCounter, 3018 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5764 SdHoareTripleChecker+Valid, 3467 SdHoareTripleChecker+Invalid, 3378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 3018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:44,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5764 Valid, 3467 Invalid, 3378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [360 Valid, 3018 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:28:44,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2021-12-06 19:28:44,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 1547. [2021-12-06 19:28:44,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.4110671936758894) internal successors, (2142), 1546 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:44,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2142 transitions. [2021-12-06 19:28:44,781 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2142 transitions. Word has length 113 [2021-12-06 19:28:44,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:44,781 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2142 transitions. [2021-12-06 19:28:44,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:44,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2142 transitions. [2021-12-06 19:28:44,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:44,782 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:44,782 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] [2021-12-06 19:28:44,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-12-06 19:28:44,783 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:44,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:44,783 INFO L85 PathProgramCache]: Analyzing trace with hash 343650429, now seen corresponding path program 1 times [2021-12-06 19:28:44,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:44,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063222236] [2021-12-06 19:28:44,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:44,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:44,858 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 19:28:44,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:44,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063222236] [2021-12-06 19:28:44,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063222236] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:44,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:44,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:44,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958304309] [2021-12-06 19:28:44,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:44,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:44,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:44,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:44,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:44,860 INFO L87 Difference]: Start difference. First operand 1547 states and 2142 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:46,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:46,952 INFO L93 Difference]: Finished difference Result 2912 states and 4088 transitions. [2021-12-06 19:28:46,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:46,952 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:28:46,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:46,954 INFO L225 Difference]: With dead ends: 2912 [2021-12-06 19:28:46,954 INFO L226 Difference]: Without dead ends: 2702 [2021-12-06 19:28:46,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-06 19:28:46,955 INFO L933 BasicCegarLoop]: 1162 mSDtfsCounter, 6557 mSDsluCounter, 4804 mSDsCounter, 0 mSdLazyCounter, 4619 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6557 SdHoareTripleChecker+Valid, 5966 SdHoareTripleChecker+Invalid, 4717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 4619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:46,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6557 Valid, 5966 Invalid, 4717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 4619 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:28:46,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2021-12-06 19:28:47,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 1547. [2021-12-06 19:28:47,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.4097496706192358) internal successors, (2140), 1546 states have internal predecessors, (2140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:47,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2140 transitions. [2021-12-06 19:28:47,229 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2140 transitions. Word has length 113 [2021-12-06 19:28:47,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:47,229 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2140 transitions. [2021-12-06 19:28:47,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:47,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2140 transitions. [2021-12-06 19:28:47,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:47,231 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:47,231 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] [2021-12-06 19:28:47,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-12-06 19:28:47,231 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:47,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:47,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1288206653, now seen corresponding path program 1 times [2021-12-06 19:28:47,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:47,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170127892] [2021-12-06 19:28:47,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:47,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,298 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 19:28:47,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:47,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170127892] [2021-12-06 19:28:47,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170127892] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:47,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:47,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:47,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139873131] [2021-12-06 19:28:47,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:47,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:47,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:47,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:47,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:47,299 INFO L87 Difference]: Start difference. First operand 1547 states and 2140 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:49,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:49,053 INFO L93 Difference]: Finished difference Result 2735 states and 3788 transitions. [2021-12-06 19:28:49,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:49,053 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:28:49,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:49,055 INFO L225 Difference]: With dead ends: 2735 [2021-12-06 19:28:49,055 INFO L226 Difference]: Without dead ends: 2565 [2021-12-06 19:28:49,056 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 19:28:49,056 INFO L933 BasicCegarLoop]: 843 mSDtfsCounter, 5753 mSDsluCounter, 2629 mSDsCounter, 0 mSdLazyCounter, 3005 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5753 SdHoareTripleChecker+Valid, 3472 SdHoareTripleChecker+Invalid, 3366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 3005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:49,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5753 Valid, 3472 Invalid, 3366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 3005 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:28:49,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2021-12-06 19:28:49,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 1547. [2021-12-06 19:28:49,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.4084321475625823) internal successors, (2138), 1546 states have internal predecessors, (2138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:49,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2138 transitions. [2021-12-06 19:28:49,338 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2138 transitions. Word has length 113 [2021-12-06 19:28:49,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:49,338 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2138 transitions. [2021-12-06 19:28:49,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:49,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2138 transitions. [2021-12-06 19:28:49,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:49,339 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:49,339 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] [2021-12-06 19:28:49,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-12-06 19:28:49,339 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:49,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:49,340 INFO L85 PathProgramCache]: Analyzing trace with hash 194915157, now seen corresponding path program 1 times [2021-12-06 19:28:49,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:49,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063487771] [2021-12-06 19:28:49,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:49,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:49,419 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 19:28:49,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:49,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063487771] [2021-12-06 19:28:49,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063487771] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:49,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:49,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:49,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122392195] [2021-12-06 19:28:49,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:49,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:49,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:49,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:49,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:49,421 INFO L87 Difference]: Start difference. First operand 1547 states and 2138 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:51,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:51,599 INFO L93 Difference]: Finished difference Result 2834 states and 3960 transitions. [2021-12-06 19:28:51,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:51,600 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:28:51,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:51,602 INFO L225 Difference]: With dead ends: 2834 [2021-12-06 19:28:51,602 INFO L226 Difference]: Without dead ends: 2650 [2021-12-06 19:28:51,602 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 19:28:51,603 INFO L933 BasicCegarLoop]: 1002 mSDtfsCounter, 6411 mSDsluCounter, 4178 mSDsCounter, 0 mSdLazyCounter, 4159 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6411 SdHoareTripleChecker+Valid, 5180 SdHoareTripleChecker+Invalid, 4342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 4159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:51,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6411 Valid, 5180 Invalid, 4342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 4159 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-06 19:28:51,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-06 19:28:51,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1547. [2021-12-06 19:28:51,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.407114624505929) internal successors, (2136), 1546 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:51,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2136 transitions. [2021-12-06 19:28:51,901 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2136 transitions. Word has length 113 [2021-12-06 19:28:51,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:51,901 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2136 transitions. [2021-12-06 19:28:51,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:51,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2136 transitions. [2021-12-06 19:28:51,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:51,902 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:51,902 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] [2021-12-06 19:28:51,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-12-06 19:28:51,902 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:51,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:51,903 INFO L85 PathProgramCache]: Analyzing trace with hash 603760385, now seen corresponding path program 1 times [2021-12-06 19:28:51,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:51,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793713163] [2021-12-06 19:28:51,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:51,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,975 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 19:28:51,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:51,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793713163] [2021-12-06 19:28:51,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793713163] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:51,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:51,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:51,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839147873] [2021-12-06 19:28:51,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:51,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:51,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:51,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:51,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:51,976 INFO L87 Difference]: Start difference. First operand 1547 states and 2136 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:54,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:54,004 INFO L93 Difference]: Finished difference Result 2912 states and 4077 transitions. [2021-12-06 19:28:54,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:54,004 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:28:54,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:54,006 INFO L225 Difference]: With dead ends: 2912 [2021-12-06 19:28:54,006 INFO L226 Difference]: Without dead ends: 2702 [2021-12-06 19:28:54,006 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 19:28:54,007 INFO L933 BasicCegarLoop]: 1281 mSDtfsCounter, 6295 mSDsluCounter, 3986 mSDsCounter, 0 mSdLazyCounter, 4138 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6295 SdHoareTripleChecker+Valid, 5267 SdHoareTripleChecker+Invalid, 4250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 4138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:54,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6295 Valid, 5267 Invalid, 4250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 4138 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:28:54,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2021-12-06 19:28:54,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 1547. [2021-12-06 19:28:54,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.4057971014492754) internal successors, (2134), 1546 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:54,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2134 transitions. [2021-12-06 19:28:54,286 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2134 transitions. Word has length 113 [2021-12-06 19:28:54,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:54,286 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2134 transitions. [2021-12-06 19:28:54,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:54,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2134 transitions. [2021-12-06 19:28:54,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:54,287 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:54,288 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] [2021-12-06 19:28:54,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-12-06 19:28:54,288 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:54,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:54,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1648532600, now seen corresponding path program 1 times [2021-12-06 19:28:54,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:54,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254676937] [2021-12-06 19:28:54,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:54,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:54,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:28:54,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:54,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254676937] [2021-12-06 19:28:54,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254676937] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:54,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:54,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:54,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639375662] [2021-12-06 19:28:54,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:54,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:54,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:54,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:54,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:54,374 INFO L87 Difference]: Start difference. First operand 1547 states and 2134 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:56,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:56,485 INFO L93 Difference]: Finished difference Result 2828 states and 3951 transitions. [2021-12-06 19:28:56,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:56,485 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:28:56,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:56,487 INFO L225 Difference]: With dead ends: 2828 [2021-12-06 19:28:56,487 INFO L226 Difference]: Without dead ends: 2650 [2021-12-06 19:28:56,488 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 19:28:56,488 INFO L933 BasicCegarLoop]: 1026 mSDtfsCounter, 6357 mSDsluCounter, 4253 mSDsCounter, 0 mSdLazyCounter, 4219 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6357 SdHoareTripleChecker+Valid, 5279 SdHoareTripleChecker+Invalid, 4401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 4219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:56,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6357 Valid, 5279 Invalid, 4401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 4219 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:28:56,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-06 19:28:56,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1547. [2021-12-06 19:28:56,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.4044795783926218) internal successors, (2132), 1546 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:56,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2132 transitions. [2021-12-06 19:28:56,781 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2132 transitions. Word has length 113 [2021-12-06 19:28:56,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:56,781 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2132 transitions. [2021-12-06 19:28:56,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:56,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2132 transitions. [2021-12-06 19:28:56,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:56,782 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:56,782 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] [2021-12-06 19:28:56,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-12-06 19:28:56,782 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:56,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:56,783 INFO L85 PathProgramCache]: Analyzing trace with hash 159115218, now seen corresponding path program 1 times [2021-12-06 19:28:56,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:56,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013099111] [2021-12-06 19:28:56,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:56,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,857 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 19:28:56,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:56,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013099111] [2021-12-06 19:28:56,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013099111] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:56,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:56,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:56,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366865036] [2021-12-06 19:28:56,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:56,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:28:56,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:56,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:28:56,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:56,858 INFO L87 Difference]: Start difference. First operand 1547 states and 2132 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:59,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:59,085 INFO L93 Difference]: Finished difference Result 2906 states and 4069 transitions. [2021-12-06 19:28:59,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:28:59,085 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:28:59,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:59,087 INFO L225 Difference]: With dead ends: 2906 [2021-12-06 19:28:59,087 INFO L226 Difference]: Without dead ends: 2702 [2021-12-06 19:28:59,088 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 19:28:59,088 INFO L933 BasicCegarLoop]: 1268 mSDtfsCounter, 6043 mSDsluCounter, 5070 mSDsCounter, 0 mSdLazyCounter, 4916 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6043 SdHoareTripleChecker+Valid, 6338 SdHoareTripleChecker+Invalid, 5010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 4916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:59,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6043 Valid, 6338 Invalid, 5010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 4916 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-06 19:28:59,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2021-12-06 19:28:59,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 1547. [2021-12-06 19:28:59,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.4031620553359683) internal successors, (2130), 1546 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:59,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2130 transitions. [2021-12-06 19:28:59,381 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2130 transitions. Word has length 113 [2021-12-06 19:28:59,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:59,381 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2130 transitions. [2021-12-06 19:28:59,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:28:59,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2130 transitions. [2021-12-06 19:28:59,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:28:59,382 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:59,382 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] [2021-12-06 19:28:59,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-12-06 19:28:59,382 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:28:59,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:59,382 INFO L85 PathProgramCache]: Analyzing trace with hash 602727429, now seen corresponding path program 1 times [2021-12-06 19:28:59,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:59,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783489735] [2021-12-06 19:28:59,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:59,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:59,493 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 19:28:59,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:59,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783489735] [2021-12-06 19:28:59,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783489735] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:59,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:59,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:28:59,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431557780] [2021-12-06 19:28:59,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:59,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:28:59,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:59,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:28:59,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:28:59,494 INFO L87 Difference]: Start difference. First operand 1547 states and 2130 transitions. Second operand has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:03,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:03,177 INFO L93 Difference]: Finished difference Result 3812 states and 5399 transitions. [2021-12-06 19:29:03,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:29:03,177 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:29:03,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:03,179 INFO L225 Difference]: With dead ends: 3812 [2021-12-06 19:29:03,180 INFO L226 Difference]: Without dead ends: 3628 [2021-12-06 19:29:03,180 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 19:29:03,180 INFO L933 BasicCegarLoop]: 1134 mSDtfsCounter, 9377 mSDsluCounter, 3942 mSDsCounter, 0 mSdLazyCounter, 4179 mSolverCounterSat, 996 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9377 SdHoareTripleChecker+Valid, 5076 SdHoareTripleChecker+Invalid, 5175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 996 IncrementalHoareTripleChecker+Valid, 4179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:03,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9377 Valid, 5076 Invalid, 5175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [996 Valid, 4179 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-06 19:29:03,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3628 states. [2021-12-06 19:29:03,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3628 to 1555. [2021-12-06 19:29:03,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.401048492791612) internal successors, (2138), 1554 states have internal predecessors, (2138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:03,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2138 transitions. [2021-12-06 19:29:03,487 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2138 transitions. Word has length 113 [2021-12-06 19:29:03,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:03,487 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2138 transitions. [2021-12-06 19:29:03,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:03,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2138 transitions. [2021-12-06 19:29:03,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:29:03,488 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:03,488 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] [2021-12-06 19:29:03,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-12-06 19:29:03,488 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:03,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:03,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1248713030, now seen corresponding path program 1 times [2021-12-06 19:29:03,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:03,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674302162] [2021-12-06 19:29:03,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:03,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:03,565 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 19:29:03,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:03,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674302162] [2021-12-06 19:29:03,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674302162] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:03,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:03,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:03,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862286714] [2021-12-06 19:29:03,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:03,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:29:03,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:03,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:29:03,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:29:03,566 INFO L87 Difference]: Start difference. First operand 1555 states and 2138 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:05,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:05,748 INFO L93 Difference]: Finished difference Result 2832 states and 3949 transitions. [2021-12-06 19:29:05,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:29:05,749 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:29:05,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:05,751 INFO L225 Difference]: With dead ends: 2832 [2021-12-06 19:29:05,751 INFO L226 Difference]: Without dead ends: 2650 [2021-12-06 19:29:05,751 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 19:29:05,752 INFO L933 BasicCegarLoop]: 1032 mSDtfsCounter, 6336 mSDsluCounter, 4271 mSDsCounter, 0 mSdLazyCounter, 4230 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6336 SdHoareTripleChecker+Valid, 5303 SdHoareTripleChecker+Invalid, 4411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 4230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:05,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6336 Valid, 5303 Invalid, 4411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 4230 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-06 19:29:05,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-06 19:29:06,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1555. [2021-12-06 19:29:06,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.399737876802097) internal successors, (2136), 1554 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:06,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2136 transitions. [2021-12-06 19:29:06,053 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2136 transitions. Word has length 113 [2021-12-06 19:29:06,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:06,054 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2136 transitions. [2021-12-06 19:29:06,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:06,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2136 transitions. [2021-12-06 19:29:06,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:29:06,055 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:06,055 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] [2021-12-06 19:29:06,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-12-06 19:29:06,055 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:06,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:06,055 INFO L85 PathProgramCache]: Analyzing trace with hash -502514123, now seen corresponding path program 1 times [2021-12-06 19:29:06,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:06,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060612154] [2021-12-06 19:29:06,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:06,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:06,133 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 19:29:06,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:06,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060612154] [2021-12-06 19:29:06,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060612154] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:06,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:06,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:06,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797739740] [2021-12-06 19:29:06,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:06,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:29:06,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:06,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:29:06,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:29:06,134 INFO L87 Difference]: Start difference. First operand 1555 states and 2136 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:08,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:08,300 INFO L93 Difference]: Finished difference Result 2940 states and 4100 transitions. [2021-12-06 19:29:08,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:29:08,300 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:29:08,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:08,302 INFO L225 Difference]: With dead ends: 2940 [2021-12-06 19:29:08,302 INFO L226 Difference]: Without dead ends: 2718 [2021-12-06 19:29:08,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-06 19:29:08,302 INFO L933 BasicCegarLoop]: 1166 mSDtfsCounter, 6434 mSDsluCounter, 4849 mSDsCounter, 0 mSdLazyCounter, 4612 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6434 SdHoareTripleChecker+Valid, 6015 SdHoareTripleChecker+Invalid, 4708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 4612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:08,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6434 Valid, 6015 Invalid, 4708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 4612 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:29:08,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2718 states. [2021-12-06 19:29:08,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2718 to 1555. [2021-12-06 19:29:08,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.3984272608125818) internal successors, (2134), 1554 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:08,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2134 transitions. [2021-12-06 19:29:08,610 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2134 transitions. Word has length 113 [2021-12-06 19:29:08,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:08,611 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2134 transitions. [2021-12-06 19:29:08,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:08,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2134 transitions. [2021-12-06 19:29:08,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:29:08,612 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:08,612 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] [2021-12-06 19:29:08,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-12-06 19:29:08,612 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:08,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:08,612 INFO L85 PathProgramCache]: Analyzing trace with hash -911359351, now seen corresponding path program 1 times [2021-12-06 19:29:08,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:08,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90510482] [2021-12-06 19:29:08,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:08,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,682 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 19:29:08,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:08,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90510482] [2021-12-06 19:29:08,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90510482] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:08,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:08,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:08,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253315393] [2021-12-06 19:29:08,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:08,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:29:08,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:08,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:29:08,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:29:08,683 INFO L87 Difference]: Start difference. First operand 1555 states and 2134 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:10,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:10,525 INFO L93 Difference]: Finished difference Result 2747 states and 3785 transitions. [2021-12-06 19:29:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:29:10,526 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:29:10,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:10,527 INFO L225 Difference]: With dead ends: 2747 [2021-12-06 19:29:10,527 INFO L226 Difference]: Without dead ends: 2573 [2021-12-06 19:29:10,528 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 19:29:10,528 INFO L933 BasicCegarLoop]: 861 mSDtfsCounter, 3923 mSDsluCounter, 2679 mSDsCounter, 0 mSdLazyCounter, 3043 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3923 SdHoareTripleChecker+Valid, 3540 SdHoareTripleChecker+Invalid, 3272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 3043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:10,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3923 Valid, 3540 Invalid, 3272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 3043 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:29:10,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2573 states. [2021-12-06 19:29:10,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2573 to 1555. [2021-12-06 19:29:10,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.3971166448230667) internal successors, (2132), 1554 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:10,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2132 transitions. [2021-12-06 19:29:10,838 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2132 transitions. Word has length 113 [2021-12-06 19:29:10,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:10,838 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2132 transitions. [2021-12-06 19:29:10,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:10,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2132 transitions. [2021-12-06 19:29:10,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:29:10,839 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:10,840 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] [2021-12-06 19:29:10,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-12-06 19:29:10,840 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:10,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:10,840 INFO L85 PathProgramCache]: Analyzing trace with hash -926787844, now seen corresponding path program 1 times [2021-12-06 19:29:10,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:10,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610782129] [2021-12-06 19:29:10,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:10,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:10,919 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 19:29:10,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:10,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610782129] [2021-12-06 19:29:10,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610782129] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:10,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:10,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:10,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084983200] [2021-12-06 19:29:10,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:10,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:29:10,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:10,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:29:10,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:29:10,920 INFO L87 Difference]: Start difference. First operand 1555 states and 2132 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:12,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:12,749 INFO L93 Difference]: Finished difference Result 2747 states and 3781 transitions. [2021-12-06 19:29:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:29:12,750 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:29:12,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:12,752 INFO L225 Difference]: With dead ends: 2747 [2021-12-06 19:29:12,752 INFO L226 Difference]: Without dead ends: 2573 [2021-12-06 19:29:12,752 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 19:29:12,752 INFO L933 BasicCegarLoop]: 861 mSDtfsCounter, 6242 mSDsluCounter, 2679 mSDsCounter, 0 mSdLazyCounter, 3038 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6242 SdHoareTripleChecker+Valid, 3540 SdHoareTripleChecker+Invalid, 3459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 3038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:12,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6242 Valid, 3540 Invalid, 3459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 3038 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:29:12,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2573 states. [2021-12-06 19:29:13,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2573 to 1555. [2021-12-06 19:29:13,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.3958060288335519) internal successors, (2130), 1554 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:13,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2130 transitions. [2021-12-06 19:29:13,056 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2130 transitions. Word has length 113 [2021-12-06 19:29:13,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:13,057 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2130 transitions. [2021-12-06 19:29:13,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:13,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2130 transitions. [2021-12-06 19:29:13,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:29:13,058 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:13,058 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] [2021-12-06 19:29:13,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-12-06 19:29:13,058 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:13,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:13,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1394254486, now seen corresponding path program 1 times [2021-12-06 19:29:13,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:13,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082897436] [2021-12-06 19:29:13,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:13,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:13,132 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 19:29:13,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:13,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082897436] [2021-12-06 19:29:13,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082897436] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:13,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:13,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:13,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167056174] [2021-12-06 19:29:13,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:13,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:29:13,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:13,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:29:13,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:29:13,133 INFO L87 Difference]: Start difference. First operand 1555 states and 2130 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:15,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:15,052 INFO L93 Difference]: Finished difference Result 2940 states and 4092 transitions. [2021-12-06 19:29:15,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:29:15,053 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:29:15,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:15,054 INFO L225 Difference]: With dead ends: 2940 [2021-12-06 19:29:15,054 INFO L226 Difference]: Without dead ends: 2718 [2021-12-06 19:29:15,055 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 19:29:15,055 INFO L933 BasicCegarLoop]: 1281 mSDtfsCounter, 3260 mSDsluCounter, 3978 mSDsCounter, 0 mSdLazyCounter, 4097 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3260 SdHoareTripleChecker+Valid, 5259 SdHoareTripleChecker+Invalid, 4154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 4097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:15,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3260 Valid, 5259 Invalid, 4154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 4097 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:29:15,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2718 states. [2021-12-06 19:29:15,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2718 to 1555. [2021-12-06 19:29:15,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.3944954128440368) internal successors, (2128), 1554 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:15,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2128 transitions. [2021-12-06 19:29:15,377 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2128 transitions. Word has length 113 [2021-12-06 19:29:15,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:15,378 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2128 transitions. [2021-12-06 19:29:15,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:15,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2128 transitions. [2021-12-06 19:29:15,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:29:15,379 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:15,379 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] [2021-12-06 19:29:15,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-12-06 19:29:15,379 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:15,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:15,379 INFO L85 PathProgramCache]: Analyzing trace with hash -777572953, now seen corresponding path program 1 times [2021-12-06 19:29:15,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:15,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179375474] [2021-12-06 19:29:15,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:15,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:15,446 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 19:29:15,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:15,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179375474] [2021-12-06 19:29:15,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179375474] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:15,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:15,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:15,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647970536] [2021-12-06 19:29:15,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:15,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:29:15,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:15,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:29:15,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:29:15,448 INFO L87 Difference]: Start difference. First operand 1555 states and 2128 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:17,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:17,290 INFO L93 Difference]: Finished difference Result 2743 states and 3770 transitions. [2021-12-06 19:29:17,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:29:17,290 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:29:17,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:17,292 INFO L225 Difference]: With dead ends: 2743 [2021-12-06 19:29:17,292 INFO L226 Difference]: Without dead ends: 2573 [2021-12-06 19:29:17,292 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 19:29:17,293 INFO L933 BasicCegarLoop]: 860 mSDtfsCounter, 5640 mSDsluCounter, 2683 mSDsCounter, 0 mSdLazyCounter, 3032 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5640 SdHoareTripleChecker+Valid, 3543 SdHoareTripleChecker+Invalid, 3387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 3032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:17,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5640 Valid, 3543 Invalid, 3387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 3032 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:29:17,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2573 states. [2021-12-06 19:29:17,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2573 to 1555. [2021-12-06 19:29:17,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.3931847968545217) internal successors, (2126), 1554 states have internal predecessors, (2126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:17,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2126 transitions. [2021-12-06 19:29:17,611 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2126 transitions. Word has length 113 [2021-12-06 19:29:17,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:17,611 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2126 transitions. [2021-12-06 19:29:17,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:17,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2126 transitions. [2021-12-06 19:29:17,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:29:17,612 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:17,613 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] [2021-12-06 19:29:17,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-12-06 19:29:17,613 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:17,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:17,613 INFO L85 PathProgramCache]: Analyzing trace with hash 896761652, now seen corresponding path program 1 times [2021-12-06 19:29:17,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:17,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568982273] [2021-12-06 19:29:17,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:17,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:17,693 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 19:29:17,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:17,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568982273] [2021-12-06 19:29:17,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568982273] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:17,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:17,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:17,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859435817] [2021-12-06 19:29:17,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:17,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:29:17,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:17,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:29:17,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:29:17,694 INFO L87 Difference]: Start difference. First operand 1555 states and 2126 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:19,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:19,959 INFO L93 Difference]: Finished difference Result 2932 states and 4074 transitions. [2021-12-06 19:29:19,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:29:19,959 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:29:19,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:19,961 INFO L225 Difference]: With dead ends: 2932 [2021-12-06 19:29:19,961 INFO L226 Difference]: Without dead ends: 2718 [2021-12-06 19:29:19,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-06 19:29:19,962 INFO L933 BasicCegarLoop]: 1162 mSDtfsCounter, 6555 mSDsluCounter, 4726 mSDsCounter, 0 mSdLazyCounter, 4476 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6555 SdHoareTripleChecker+Valid, 5888 SdHoareTripleChecker+Invalid, 4574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 4476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:19,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6555 Valid, 5888 Invalid, 4574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 4476 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-06 19:29:19,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2718 states. [2021-12-06 19:29:20,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2718 to 1555. [2021-12-06 19:29:20,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.3918741808650066) internal successors, (2124), 1554 states have internal predecessors, (2124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:20,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2124 transitions. [2021-12-06 19:29:20,286 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2124 transitions. Word has length 113 [2021-12-06 19:29:20,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:20,287 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2124 transitions. [2021-12-06 19:29:20,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:20,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2124 transitions. [2021-12-06 19:29:20,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:29:20,288 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:20,288 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] [2021-12-06 19:29:20,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-12-06 19:29:20,288 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:20,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:20,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1885537261, now seen corresponding path program 1 times [2021-12-06 19:29:20,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:20,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154846732] [2021-12-06 19:29:20,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:20,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:20,353 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 19:29:20,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:20,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154846732] [2021-12-06 19:29:20,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154846732] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:20,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:20,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:20,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557784596] [2021-12-06 19:29:20,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:20,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:29:20,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:20,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:29:20,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:29:20,355 INFO L87 Difference]: Start difference. First operand 1555 states and 2124 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:22,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:22,214 INFO L93 Difference]: Finished difference Result 2743 states and 3766 transitions. [2021-12-06 19:29:22,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:29:22,214 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-12-06 19:29:22,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:22,216 INFO L225 Difference]: With dead ends: 2743 [2021-12-06 19:29:22,216 INFO L226 Difference]: Without dead ends: 2573 [2021-12-06 19:29:22,216 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 19:29:22,217 INFO L933 BasicCegarLoop]: 860 mSDtfsCounter, 5638 mSDsluCounter, 2679 mSDsCounter, 0 mSdLazyCounter, 3028 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5638 SdHoareTripleChecker+Valid, 3539 SdHoareTripleChecker+Invalid, 3383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 3028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:22,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5638 Valid, 3539 Invalid, 3383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 3028 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:29:22,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2573 states. [2021-12-06 19:29:22,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2573 to 1555. [2021-12-06 19:29:22,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.3905635648754915) internal successors, (2122), 1554 states have internal predecessors, (2122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:22,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2122 transitions. [2021-12-06 19:29:22,543 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2122 transitions. Word has length 113 [2021-12-06 19:29:22,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:22,543 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2122 transitions. [2021-12-06 19:29:22,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:22,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2122 transitions. [2021-12-06 19:29:22,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-06 19:29:22,545 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:22,545 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] [2021-12-06 19:29:22,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-12-06 19:29:22,545 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:22,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:22,545 INFO L85 PathProgramCache]: Analyzing trace with hash 950824379, now seen corresponding path program 1 times [2021-12-06 19:29:22,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:22,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072356774] [2021-12-06 19:29:22,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:22,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:22,613 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 19:29:22,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:22,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072356774] [2021-12-06 19:29:22,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072356774] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:22,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:22,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:22,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831364262] [2021-12-06 19:29:22,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:22,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:29:22,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:22,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:29:22,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:29:22,615 INFO L87 Difference]: Start difference. First operand 1555 states and 2122 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:24,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:24,552 INFO L93 Difference]: Finished difference Result 2740 states and 3759 transitions. [2021-12-06 19:29:24,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:29:24,553 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-06 19:29:24,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:24,555 INFO L225 Difference]: With dead ends: 2740 [2021-12-06 19:29:24,555 INFO L226 Difference]: Without dead ends: 2573 [2021-12-06 19:29:24,555 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 19:29:24,555 INFO L933 BasicCegarLoop]: 860 mSDtfsCounter, 5631 mSDsluCounter, 2680 mSDsCounter, 0 mSdLazyCounter, 3024 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5631 SdHoareTripleChecker+Valid, 3540 SdHoareTripleChecker+Invalid, 3379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 3024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:24,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5631 Valid, 3540 Invalid, 3379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 3024 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:29:24,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2573 states. [2021-12-06 19:29:24,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2573 to 1555. [2021-12-06 19:29:24,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.389908256880734) internal successors, (2121), 1554 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:24,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2121 transitions. [2021-12-06 19:29:24,876 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2121 transitions. Word has length 114 [2021-12-06 19:29:24,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:24,876 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2121 transitions. [2021-12-06 19:29:24,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:24,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2121 transitions. [2021-12-06 19:29:24,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-06 19:29:24,878 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:24,878 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] [2021-12-06 19:29:24,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-12-06 19:29:24,878 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:24,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:24,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1827888191, now seen corresponding path program 1 times [2021-12-06 19:29:24,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:24,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762918889] [2021-12-06 19:29:24,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:24,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:24,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:24,951 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 19:29:24,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:24,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762918889] [2021-12-06 19:29:24,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762918889] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:24,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:24,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:24,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823757454] [2021-12-06 19:29:24,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:24,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:29:24,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:24,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:29:24,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:29:24,952 INFO L87 Difference]: Start difference. First operand 1555 states and 2121 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:26,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:26,884 INFO L93 Difference]: Finished difference Result 2740 states and 3757 transitions. [2021-12-06 19:29:26,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:29:26,884 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-06 19:29:26,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:26,886 INFO L225 Difference]: With dead ends: 2740 [2021-12-06 19:29:26,886 INFO L226 Difference]: Without dead ends: 2573 [2021-12-06 19:29:26,887 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 19:29:26,887 INFO L933 BasicCegarLoop]: 860 mSDtfsCounter, 5623 mSDsluCounter, 2684 mSDsCounter, 0 mSdLazyCounter, 3016 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5623 SdHoareTripleChecker+Valid, 3544 SdHoareTripleChecker+Invalid, 3371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 3016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:26,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5623 Valid, 3544 Invalid, 3371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 3016 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:29:26,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2573 states. [2021-12-06 19:29:27,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2573 to 1555. [2021-12-06 19:29:27,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.3892529488859764) internal successors, (2120), 1554 states have internal predecessors, (2120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:27,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2120 transitions. [2021-12-06 19:29:27,219 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2120 transitions. Word has length 114 [2021-12-06 19:29:27,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:27,219 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2120 transitions. [2021-12-06 19:29:27,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:27,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2120 transitions. [2021-12-06 19:29:27,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-06 19:29:27,220 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:27,220 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] [2021-12-06 19:29:27,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-12-06 19:29:27,220 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:27,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:27,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1331476428, now seen corresponding path program 1 times [2021-12-06 19:29:27,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:27,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507635814] [2021-12-06 19:29:27,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:27,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:27,286 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 19:29:27,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:27,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507635814] [2021-12-06 19:29:27,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507635814] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:27,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:27,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:27,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280944406] [2021-12-06 19:29:27,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:27,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:29:27,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:27,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:29:27,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:29:27,287 INFO L87 Difference]: Start difference. First operand 1555 states and 2120 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:29,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:29,271 INFO L93 Difference]: Finished difference Result 2901 states and 4029 transitions. [2021-12-06 19:29:29,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:29:29,272 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-06 19:29:29,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:29,273 INFO L225 Difference]: With dead ends: 2901 [2021-12-06 19:29:29,274 INFO L226 Difference]: Without dead ends: 2718 [2021-12-06 19:29:29,274 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 19:29:29,274 INFO L933 BasicCegarLoop]: 1205 mSDtfsCounter, 4885 mSDsluCounter, 3901 mSDsCounter, 0 mSdLazyCounter, 3916 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4885 SdHoareTripleChecker+Valid, 5106 SdHoareTripleChecker+Invalid, 4002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:29,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4885 Valid, 5106 Invalid, 4002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3916 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:29:29,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2718 states. [2021-12-06 19:29:29,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2718 to 1555. [2021-12-06 19:29:29,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.3885976408912188) internal successors, (2119), 1554 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:29,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2119 transitions. [2021-12-06 19:29:29,617 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2119 transitions. Word has length 114 [2021-12-06 19:29:29,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:29,617 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2119 transitions. [2021-12-06 19:29:29,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:29,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2119 transitions. [2021-12-06 19:29:29,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-06 19:29:29,618 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:29,618 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] [2021-12-06 19:29:29,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-12-06 19:29:29,619 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:29,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:29,619 INFO L85 PathProgramCache]: Analyzing trace with hash 930514687, now seen corresponding path program 1 times [2021-12-06 19:29:29,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:29,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50164653] [2021-12-06 19:29:29,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:29,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:29,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:29,688 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 19:29:29,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:29,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50164653] [2021-12-06 19:29:29,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50164653] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:29,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:29,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:29,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869037546] [2021-12-06 19:29:29,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:29,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:29:29,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:29,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:29:29,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:29:29,689 INFO L87 Difference]: Start difference. First operand 1555 states and 2119 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:31,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:31,791 INFO L93 Difference]: Finished difference Result 2828 states and 3920 transitions. [2021-12-06 19:29:31,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:29:31,791 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-06 19:29:31,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:31,793 INFO L225 Difference]: With dead ends: 2828 [2021-12-06 19:29:31,793 INFO L226 Difference]: Without dead ends: 2650 [2021-12-06 19:29:31,794 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 19:29:31,794 INFO L933 BasicCegarLoop]: 1194 mSDtfsCounter, 3320 mSDsluCounter, 3714 mSDsCounter, 0 mSdLazyCounter, 3889 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3320 SdHoareTripleChecker+Valid, 4908 SdHoareTripleChecker+Invalid, 3996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 3889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:31,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3320 Valid, 4908 Invalid, 3996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 3889 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:29:31,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-06 19:29:32,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1551. [2021-12-06 19:29:32,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1522 states have (on average 1.3889618922470435) internal successors, (2114), 1550 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:32,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2114 transitions. [2021-12-06 19:29:32,149 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2114 transitions. Word has length 114 [2021-12-06 19:29:32,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:32,150 INFO L470 AbstractCegarLoop]: Abstraction has 1551 states and 2114 transitions. [2021-12-06 19:29:32,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:32,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2114 transitions. [2021-12-06 19:29:32,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-06 19:29:32,151 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:32,151 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] [2021-12-06 19:29:32,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-12-06 19:29:32,151 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:32,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:32,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2051506923, now seen corresponding path program 1 times [2021-12-06 19:29:32,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:32,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80326894] [2021-12-06 19:29:32,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:32,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:32,232 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 19:29:32,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:32,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80326894] [2021-12-06 19:29:32,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80326894] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:32,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:32,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:32,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482054449] [2021-12-06 19:29:32,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:32,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:29:32,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:32,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:29:32,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:29:32,234 INFO L87 Difference]: Start difference. First operand 1551 states and 2114 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:34,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:34,609 INFO L93 Difference]: Finished difference Result 2822 states and 3913 transitions. [2021-12-06 19:29:34,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:29:34,609 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-06 19:29:34,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:34,611 INFO L225 Difference]: With dead ends: 2822 [2021-12-06 19:29:34,611 INFO L226 Difference]: Without dead ends: 2650 [2021-12-06 19:29:34,611 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 19:29:34,612 INFO L933 BasicCegarLoop]: 1181 mSDtfsCounter, 6029 mSDsluCounter, 4716 mSDsCounter, 0 mSdLazyCounter, 4597 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6029 SdHoareTripleChecker+Valid, 5897 SdHoareTripleChecker+Invalid, 4772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 4597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:34,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6029 Valid, 5897 Invalid, 4772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 4597 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-06 19:29:34,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-06 19:29:34,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1551. [2021-12-06 19:29:34,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1522 states have (on average 1.388304862023653) internal successors, (2113), 1550 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:34,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2113 transitions. [2021-12-06 19:29:34,963 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2113 transitions. Word has length 114 [2021-12-06 19:29:34,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:34,963 INFO L470 AbstractCegarLoop]: Abstraction has 1551 states and 2113 transitions. [2021-12-06 19:29:34,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:34,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2113 transitions. [2021-12-06 19:29:34,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-06 19:29:34,964 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:34,964 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] [2021-12-06 19:29:34,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-12-06 19:29:34,964 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:34,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:34,964 INFO L85 PathProgramCache]: Analyzing trace with hash -2022948015, now seen corresponding path program 1 times [2021-12-06 19:29:34,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:34,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172320411] [2021-12-06 19:29:34,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:34,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:34,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:35,050 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 19:29:35,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:35,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172320411] [2021-12-06 19:29:35,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172320411] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:35,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:35,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:35,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553545539] [2021-12-06 19:29:35,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:35,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:29:35,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:35,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:29:35,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:29:35,051 INFO L87 Difference]: Start difference. First operand 1551 states and 2113 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:37,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:37,135 INFO L93 Difference]: Finished difference Result 2834 states and 3926 transitions. [2021-12-06 19:29:37,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:29:37,135 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-12-06 19:29:37,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:37,137 INFO L225 Difference]: With dead ends: 2834 [2021-12-06 19:29:37,137 INFO L226 Difference]: Without dead ends: 2650 [2021-12-06 19:29:37,137 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 19:29:37,138 INFO L933 BasicCegarLoop]: 1253 mSDtfsCounter, 4622 mSDsluCounter, 3893 mSDsCounter, 0 mSdLazyCounter, 4092 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4622 SdHoareTripleChecker+Valid, 5146 SdHoareTripleChecker+Invalid, 4249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 4092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:37,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4622 Valid, 5146 Invalid, 4249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 4092 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:29:37,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-06 19:29:37,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1543. [2021-12-06 19:29:37,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1514 states have (on average 1.3890356671070012) internal successors, (2103), 1542 states have internal predecessors, (2103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:37,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2103 transitions. [2021-12-06 19:29:37,480 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2103 transitions. Word has length 114 [2021-12-06 19:29:37,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:37,480 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2103 transitions. [2021-12-06 19:29:37,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:37,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2103 transitions. [2021-12-06 19:29:37,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:29:37,481 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:37,482 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] [2021-12-06 19:29:37,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-12-06 19:29:37,482 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:37,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:37,482 INFO L85 PathProgramCache]: Analyzing trace with hash 2144503772, now seen corresponding path program 1 times [2021-12-06 19:29:37,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:37,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456943778] [2021-12-06 19:29:37,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:37,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:37,613 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 19:29:37,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:37,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456943778] [2021-12-06 19:29:37,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456943778] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:37,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:37,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:29:37,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094161258] [2021-12-06 19:29:37,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:37,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:29:37,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:37,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:29:37,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:29:37,614 INFO L87 Difference]: Start difference. First operand 1543 states and 2103 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:41,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:41,607 INFO L93 Difference]: Finished difference Result 3800 states and 5351 transitions. [2021-12-06 19:29:41,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:29:41,607 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:29:41,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:41,610 INFO L225 Difference]: With dead ends: 3800 [2021-12-06 19:29:41,610 INFO L226 Difference]: Without dead ends: 3622 [2021-12-06 19:29:41,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 19:29:41,611 INFO L933 BasicCegarLoop]: 1228 mSDtfsCounter, 9575 mSDsluCounter, 5238 mSDsCounter, 0 mSdLazyCounter, 5205 mSolverCounterSat, 945 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9575 SdHoareTripleChecker+Valid, 6466 SdHoareTripleChecker+Invalid, 6150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 945 IncrementalHoareTripleChecker+Valid, 5205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:41,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9575 Valid, 6466 Invalid, 6150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [945 Valid, 5205 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-06 19:29:41,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2021-12-06 19:29:41,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 1547. [2021-12-06 19:29:41,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.3880105401844531) internal successors, (2107), 1546 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:41,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2107 transitions. [2021-12-06 19:29:41,963 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2107 transitions. Word has length 115 [2021-12-06 19:29:41,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:41,964 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2107 transitions. [2021-12-06 19:29:41,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:41,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2107 transitions. [2021-12-06 19:29:41,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:29:41,965 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:41,965 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] [2021-12-06 19:29:41,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-12-06 19:29:41,965 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:41,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:41,965 INFO L85 PathProgramCache]: Analyzing trace with hash 468177209, now seen corresponding path program 1 times [2021-12-06 19:29:41,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:41,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541587571] [2021-12-06 19:29:41,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:41,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:42,040 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 19:29:42,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:42,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541587571] [2021-12-06 19:29:42,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541587571] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:42,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:42,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:42,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541020728] [2021-12-06 19:29:42,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:42,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:29:42,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:42,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:29:42,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:29:42,041 INFO L87 Difference]: Start difference. First operand 1547 states and 2107 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:43,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:43,990 INFO L93 Difference]: Finished difference Result 2733 states and 3744 transitions. [2021-12-06 19:29:43,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:29:43,990 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:29:43,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:43,992 INFO L225 Difference]: With dead ends: 2733 [2021-12-06 19:29:43,992 INFO L226 Difference]: Without dead ends: 2565 [2021-12-06 19:29:43,993 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 19:29:43,993 INFO L933 BasicCegarLoop]: 883 mSDtfsCounter, 5531 mSDsluCounter, 2752 mSDsCounter, 0 mSdLazyCounter, 3056 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5531 SdHoareTripleChecker+Valid, 3635 SdHoareTripleChecker+Invalid, 3404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 3056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:43,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5531 Valid, 3635 Invalid, 3404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 3056 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:29:43,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2021-12-06 19:29:44,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 1547. [2021-12-06 19:29:44,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.3873517786561265) internal successors, (2106), 1546 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 19:29:44,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2106 transitions. [2021-12-06 19:29:44,342 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2106 transitions. Word has length 115 [2021-12-06 19:29:44,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:44,342 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2106 transitions. [2021-12-06 19:29:44,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:44,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2106 transitions. [2021-12-06 19:29:44,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:29:44,343 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:44,343 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] [2021-12-06 19:29:44,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-12-06 19:29:44,343 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:44,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:44,344 INFO L85 PathProgramCache]: Analyzing trace with hash 388787210, now seen corresponding path program 1 times [2021-12-06 19:29:44,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:44,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015376355] [2021-12-06 19:29:44,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:44,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:44,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:44,423 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 19:29:44,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:44,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015376355] [2021-12-06 19:29:44,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015376355] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:44,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:44,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:44,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626330719] [2021-12-06 19:29:44,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:44,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:29:44,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:44,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:29:44,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:29:44,424 INFO L87 Difference]: Start difference. First operand 1547 states and 2106 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:46,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:46,876 INFO L93 Difference]: Finished difference Result 2824 states and 3908 transitions. [2021-12-06 19:29:46,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:29:46,876 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:29:46,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:46,878 INFO L225 Difference]: With dead ends: 2824 [2021-12-06 19:29:46,878 INFO L226 Difference]: Without dead ends: 2650 [2021-12-06 19:29:46,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-06 19:29:46,879 INFO L933 BasicCegarLoop]: 1063 mSDtfsCounter, 6437 mSDsluCounter, 4496 mSDsCounter, 0 mSdLazyCounter, 4298 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6437 SdHoareTripleChecker+Valid, 5559 SdHoareTripleChecker+Invalid, 4475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 4298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:46,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6437 Valid, 5559 Invalid, 4475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 4298 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-06 19:29:46,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-06 19:29:47,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1547. [2021-12-06 19:29:47,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.3866930171277998) internal successors, (2105), 1546 states have internal predecessors, (2105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:47,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2105 transitions. [2021-12-06 19:29:47,233 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2105 transitions. Word has length 115 [2021-12-06 19:29:47,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:47,233 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2105 transitions. [2021-12-06 19:29:47,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:47,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2105 transitions. [2021-12-06 19:29:47,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:29:47,234 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:47,235 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] [2021-12-06 19:29:47,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-12-06 19:29:47,235 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:47,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:47,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1229723649, now seen corresponding path program 1 times [2021-12-06 19:29:47,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:47,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847706644] [2021-12-06 19:29:47,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:47,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:47,303 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 19:29:47,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:47,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847706644] [2021-12-06 19:29:47,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847706644] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:47,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:47,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:47,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988459963] [2021-12-06 19:29:47,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:47,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:29:47,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:47,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:29:47,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:29:47,304 INFO L87 Difference]: Start difference. First operand 1547 states and 2105 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:49,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:49,232 INFO L93 Difference]: Finished difference Result 2731 states and 3740 transitions. [2021-12-06 19:29:49,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:29:49,232 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:29:49,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:49,234 INFO L225 Difference]: With dead ends: 2731 [2021-12-06 19:29:49,234 INFO L226 Difference]: Without dead ends: 2565 [2021-12-06 19:29:49,234 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 19:29:49,235 INFO L933 BasicCegarLoop]: 887 mSDtfsCounter, 3820 mSDsluCounter, 2765 mSDsCounter, 0 mSdLazyCounter, 3073 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3820 SdHoareTripleChecker+Valid, 3652 SdHoareTripleChecker+Invalid, 3298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 3073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:49,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3820 Valid, 3652 Invalid, 3298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 3073 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:29:49,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2021-12-06 19:29:49,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 1547. [2021-12-06 19:29:49,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.386034255599473) internal successors, (2104), 1546 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:49,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2104 transitions. [2021-12-06 19:29:49,595 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2104 transitions. Word has length 115 [2021-12-06 19:29:49,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:49,596 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2104 transitions. [2021-12-06 19:29:49,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:49,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2104 transitions. [2021-12-06 19:29:49,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:29:49,597 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:49,597 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] [2021-12-06 19:29:49,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-12-06 19:29:49,597 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:49,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:49,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1280877255, now seen corresponding path program 1 times [2021-12-06 19:29:49,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:49,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701568983] [2021-12-06 19:29:49,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:49,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:49,666 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 19:29:49,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:49,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701568983] [2021-12-06 19:29:49,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701568983] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:49,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:49,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:49,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063991554] [2021-12-06 19:29:49,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:49,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:29:49,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:49,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:29:49,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:29:49,667 INFO L87 Difference]: Start difference. First operand 1547 states and 2104 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:51,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:51,699 INFO L93 Difference]: Finished difference Result 2731 states and 3739 transitions. [2021-12-06 19:29:51,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:29:51,699 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:29:51,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:51,701 INFO L225 Difference]: With dead ends: 2731 [2021-12-06 19:29:51,701 INFO L226 Difference]: Without dead ends: 2565 [2021-12-06 19:29:51,701 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 19:29:51,702 INFO L933 BasicCegarLoop]: 887 mSDtfsCounter, 5499 mSDsluCounter, 2765 mSDsCounter, 0 mSdLazyCounter, 3069 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5499 SdHoareTripleChecker+Valid, 3652 SdHoareTripleChecker+Invalid, 3416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 3069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:51,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5499 Valid, 3652 Invalid, 3416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 3069 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:29:51,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2021-12-06 19:29:52,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 1547. [2021-12-06 19:29:52,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1518 states have (on average 1.3853754940711462) internal successors, (2103), 1546 states have internal predecessors, (2103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:52,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2103 transitions. [2021-12-06 19:29:52,062 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2103 transitions. Word has length 115 [2021-12-06 19:29:52,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:52,062 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 2103 transitions. [2021-12-06 19:29:52,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:52,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2103 transitions. [2021-12-06 19:29:52,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:29:52,063 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:52,063 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] [2021-12-06 19:29:52,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-12-06 19:29:52,063 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:52,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:52,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1562667118, now seen corresponding path program 1 times [2021-12-06 19:29:52,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:52,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068479161] [2021-12-06 19:29:52,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:52,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:52,173 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 19:29:52,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:52,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068479161] [2021-12-06 19:29:52,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068479161] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:52,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:52,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:29:52,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163396110] [2021-12-06 19:29:52,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:52,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:29:52,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:52,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:29:52,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:29:52,174 INFO L87 Difference]: Start difference. First operand 1547 states and 2103 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:56,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:56,138 INFO L93 Difference]: Finished difference Result 3792 states and 5338 transitions. [2021-12-06 19:29:56,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:29:56,139 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:29:56,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:56,141 INFO L225 Difference]: With dead ends: 3792 [2021-12-06 19:29:56,141 INFO L226 Difference]: Without dead ends: 3618 [2021-12-06 19:29:56,142 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 19:29:56,142 INFO L933 BasicCegarLoop]: 1217 mSDtfsCounter, 8848 mSDsluCounter, 4165 mSDsCounter, 0 mSdLazyCounter, 4299 mSolverCounterSat, 926 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8848 SdHoareTripleChecker+Valid, 5382 SdHoareTripleChecker+Invalid, 5225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 926 IncrementalHoareTripleChecker+Valid, 4299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:56,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8848 Valid, 5382 Invalid, 5225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [926 Valid, 4299 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-06 19:29:56,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3618 states. [2021-12-06 19:29:56,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3618 to 1551. [2021-12-06 19:29:56,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1522 states have (on average 1.3843626806833114) internal successors, (2107), 1550 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:56,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2107 transitions. [2021-12-06 19:29:56,516 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2107 transitions. Word has length 115 [2021-12-06 19:29:56,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:56,516 INFO L470 AbstractCegarLoop]: Abstraction has 1551 states and 2107 transitions. [2021-12-06 19:29:56,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:56,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2107 transitions. [2021-12-06 19:29:56,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:29:56,517 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:56,517 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] [2021-12-06 19:29:56,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-12-06 19:29:56,517 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:56,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:56,517 INFO L85 PathProgramCache]: Analyzing trace with hash 111687979, now seen corresponding path program 1 times [2021-12-06 19:29:56,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:56,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173883971] [2021-12-06 19:29:56,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:56,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:56,599 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 19:29:56,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:56,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173883971] [2021-12-06 19:29:56,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173883971] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:56,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:56,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:56,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450788837] [2021-12-06 19:29:56,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:56,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:29:56,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:56,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:29:56,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:29:56,600 INFO L87 Difference]: Start difference. First operand 1551 states and 2107 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:58,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:58,935 INFO L93 Difference]: Finished difference Result 2822 states and 3901 transitions. [2021-12-06 19:29:58,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:29:58,936 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:29:58,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:58,937 INFO L225 Difference]: With dead ends: 2822 [2021-12-06 19:29:58,937 INFO L226 Difference]: Without dead ends: 2650 [2021-12-06 19:29:58,938 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 19:29:58,938 INFO L933 BasicCegarLoop]: 1167 mSDtfsCounter, 6051 mSDsluCounter, 4695 mSDsCounter, 0 mSdLazyCounter, 4523 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6051 SdHoareTripleChecker+Valid, 5862 SdHoareTripleChecker+Invalid, 4698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 4523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:58,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6051 Valid, 5862 Invalid, 4698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 4523 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:29:58,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2021-12-06 19:29:59,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 1551. [2021-12-06 19:29:59,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1522 states have (on average 1.3837056504599212) internal successors, (2106), 1550 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 19:29:59,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2106 transitions. [2021-12-06 19:29:59,313 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2106 transitions. Word has length 115 [2021-12-06 19:29:59,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:59,313 INFO L470 AbstractCegarLoop]: Abstraction has 1551 states and 2106 transitions. [2021-12-06 19:29:59,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:29:59,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2106 transitions. [2021-12-06 19:29:59,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:29:59,315 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:59,315 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] [2021-12-06 19:29:59,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-12-06 19:29:59,315 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:29:59,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:59,316 INFO L85 PathProgramCache]: Analyzing trace with hash 493552005, now seen corresponding path program 1 times [2021-12-06 19:29:59,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:59,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452786827] [2021-12-06 19:29:59,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:59,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:59,448 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 19:29:59,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:59,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452786827] [2021-12-06 19:29:59,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452786827] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:59,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:59,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:29:59,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728070254] [2021-12-06 19:29:59,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:59,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:29:59,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:59,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:29:59,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:29:59,450 INFO L87 Difference]: Start difference. First operand 1551 states and 2106 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:03,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:30:03,657 INFO L93 Difference]: Finished difference Result 3792 states and 5336 transitions. [2021-12-06 19:30:03,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:30:03,657 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:30:03,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:30:03,660 INFO L225 Difference]: With dead ends: 3792 [2021-12-06 19:30:03,660 INFO L226 Difference]: Without dead ends: 3618 [2021-12-06 19:30:03,661 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 19:30:03,661 INFO L933 BasicCegarLoop]: 1265 mSDtfsCounter, 9590 mSDsluCounter, 4343 mSDsCounter, 0 mSdLazyCounter, 4517 mSolverCounterSat, 1071 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9590 SdHoareTripleChecker+Valid, 5608 SdHoareTripleChecker+Invalid, 5588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1071 IncrementalHoareTripleChecker+Valid, 4517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:30:03,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9590 Valid, 5608 Invalid, 5588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1071 Valid, 4517 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-06 19:30:03,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3618 states. [2021-12-06 19:30:04,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3618 to 1555. [2021-12-06 19:30:04,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1526 states have (on average 1.3826998689384011) internal successors, (2110), 1554 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:04,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2110 transitions. [2021-12-06 19:30:04,042 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2110 transitions. Word has length 115 [2021-12-06 19:30:04,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:30:04,042 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 2110 transitions. [2021-12-06 19:30:04,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:04,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2110 transitions. [2021-12-06 19:30:04,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:30:04,044 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:30:04,044 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] [2021-12-06 19:30:04,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-12-06 19:30:04,044 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:30:04,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:30:04,044 INFO L85 PathProgramCache]: Analyzing trace with hash -411952931, now seen corresponding path program 1 times [2021-12-06 19:30:04,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:30:04,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508409184] [2021-12-06 19:30:04,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:30:04,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:30:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:04,161 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 19:30:04,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:30:04,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508409184] [2021-12-06 19:30:04,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508409184] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:30:04,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:30:04,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:30:04,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146821746] [2021-12-06 19:30:04,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:30:04,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:30:04,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:30:04,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:30:04,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:30:04,162 INFO L87 Difference]: Start difference. First operand 1555 states and 2110 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:08,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:30:08,407 INFO L93 Difference]: Finished difference Result 3810 states and 5353 transitions. [2021-12-06 19:30:08,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:30:08,407 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:30:08,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:30:08,410 INFO L225 Difference]: With dead ends: 3810 [2021-12-06 19:30:08,410 INFO L226 Difference]: Without dead ends: 3627 [2021-12-06 19:30:08,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 19:30:08,411 INFO L933 BasicCegarLoop]: 1215 mSDtfsCounter, 11759 mSDsluCounter, 4008 mSDsCounter, 0 mSdLazyCounter, 4118 mSolverCounterSat, 1137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11759 SdHoareTripleChecker+Valid, 5223 SdHoareTripleChecker+Invalid, 5255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1137 IncrementalHoareTripleChecker+Valid, 4118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:30:08,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11759 Valid, 5223 Invalid, 5255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1137 Valid, 4118 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-06 19:30:08,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3627 states. [2021-12-06 19:30:08,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3627 to 1559. [2021-12-06 19:30:08,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1530 states have (on average 1.3816993464052287) internal successors, (2114), 1558 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:08,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 2114 transitions. [2021-12-06 19:30:08,798 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 2114 transitions. Word has length 115 [2021-12-06 19:30:08,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:30:08,799 INFO L470 AbstractCegarLoop]: Abstraction has 1559 states and 2114 transitions. [2021-12-06 19:30:08,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:08,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 2114 transitions. [2021-12-06 19:30:08,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:30:08,800 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:30:08,800 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] [2021-12-06 19:30:08,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-12-06 19:30:08,800 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:30:08,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:30:08,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1970817263, now seen corresponding path program 1 times [2021-12-06 19:30:08,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:30:08,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604045758] [2021-12-06 19:30:08,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:30:08,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:30:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:08,870 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 19:30:08,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:30:08,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604045758] [2021-12-06 19:30:08,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604045758] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:30:08,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:30:08,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:30:08,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393425242] [2021-12-06 19:30:08,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:30:08,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:30:08,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:30:08,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:30:08,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:30:08,872 INFO L87 Difference]: Start difference. First operand 1559 states and 2114 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:11,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:30:11,060 INFO L93 Difference]: Finished difference Result 2748 states and 3754 transitions. [2021-12-06 19:30:11,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:30:11,060 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:30:11,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:30:11,062 INFO L225 Difference]: With dead ends: 2748 [2021-12-06 19:30:11,062 INFO L226 Difference]: Without dead ends: 2577 [2021-12-06 19:30:11,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:30:11,062 INFO L933 BasicCegarLoop]: 893 mSDtfsCounter, 7157 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 3068 mSolverCounterSat, 465 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7157 SdHoareTripleChecker+Valid, 3671 SdHoareTripleChecker+Invalid, 3533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 465 IncrementalHoareTripleChecker+Valid, 3068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:30:11,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7157 Valid, 3671 Invalid, 3533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [465 Valid, 3068 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:30:11,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2577 states. [2021-12-06 19:30:11,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2577 to 1559. [2021-12-06 19:30:11,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1530 states have (on average 1.381045751633987) internal successors, (2113), 1558 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:11,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 2113 transitions. [2021-12-06 19:30:11,452 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 2113 transitions. Word has length 115 [2021-12-06 19:30:11,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:30:11,452 INFO L470 AbstractCegarLoop]: Abstraction has 1559 states and 2113 transitions. [2021-12-06 19:30:11,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:11,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 2113 transitions. [2021-12-06 19:30:11,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:30:11,453 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:30:11,453 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] [2021-12-06 19:30:11,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-12-06 19:30:11,453 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:30:11,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:30:11,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1814958715, now seen corresponding path program 1 times [2021-12-06 19:30:11,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:30:11,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257558141] [2021-12-06 19:30:11,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:30:11,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:30:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:11,521 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 19:30:11,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:30:11,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257558141] [2021-12-06 19:30:11,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257558141] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:30:11,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:30:11,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:30:11,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810603665] [2021-12-06 19:30:11,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:30:11,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:30:11,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:30:11,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:30:11,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:30:11,522 INFO L87 Difference]: Start difference. First operand 1559 states and 2113 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:13,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:30:13,629 INFO L93 Difference]: Finished difference Result 2745 states and 3750 transitions. [2021-12-06 19:30:13,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:30:13,629 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:30:13,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:30:13,631 INFO L225 Difference]: With dead ends: 2745 [2021-12-06 19:30:13,631 INFO L226 Difference]: Without dead ends: 2577 [2021-12-06 19:30:13,631 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 19:30:13,632 INFO L933 BasicCegarLoop]: 939 mSDtfsCounter, 6849 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 3261 mSolverCounterSat, 461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6849 SdHoareTripleChecker+Valid, 3860 SdHoareTripleChecker+Invalid, 3722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 3261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:30:13,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6849 Valid, 3860 Invalid, 3722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 3261 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:30:13,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2577 states. [2021-12-06 19:30:14,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2577 to 1559. [2021-12-06 19:30:14,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1530 states have (on average 1.380392156862745) internal successors, (2112), 1558 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:14,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 2112 transitions. [2021-12-06 19:30:14,031 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 2112 transitions. Word has length 115 [2021-12-06 19:30:14,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:30:14,032 INFO L470 AbstractCegarLoop]: Abstraction has 1559 states and 2112 transitions. [2021-12-06 19:30:14,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:14,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 2112 transitions. [2021-12-06 19:30:14,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:30:14,033 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:30:14,033 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] [2021-12-06 19:30:14,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-12-06 19:30:14,033 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:30:14,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:30:14,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1215680688, now seen corresponding path program 1 times [2021-12-06 19:30:14,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:30:14,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831077369] [2021-12-06 19:30:14,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:30:14,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:30:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:14,153 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 19:30:14,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:30:14,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831077369] [2021-12-06 19:30:14,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831077369] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:30:14,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:30:14,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:30:14,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537745029] [2021-12-06 19:30:14,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:30:14,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:30:14,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:30:14,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:30:14,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:30:14,154 INFO L87 Difference]: Start difference. First operand 1559 states and 2112 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:18,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:30:18,408 INFO L93 Difference]: Finished difference Result 3546 states and 4932 transitions. [2021-12-06 19:30:18,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:30:18,408 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:30:18,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:30:18,411 INFO L225 Difference]: With dead ends: 3546 [2021-12-06 19:30:18,411 INFO L226 Difference]: Without dead ends: 3375 [2021-12-06 19:30:18,411 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 19:30:18,411 INFO L933 BasicCegarLoop]: 959 mSDtfsCounter, 9223 mSDsluCounter, 4149 mSDsCounter, 0 mSdLazyCounter, 4371 mSolverCounterSat, 1401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9223 SdHoareTripleChecker+Valid, 5108 SdHoareTripleChecker+Invalid, 5772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1401 IncrementalHoareTripleChecker+Valid, 4371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:30:18,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9223 Valid, 5108 Invalid, 5772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1401 Valid, 4371 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-06 19:30:18,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3375 states. [2021-12-06 19:30:18,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3375 to 1563. [2021-12-06 19:30:18,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.379400260756193) internal successors, (2116), 1562 states have internal predecessors, (2116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:18,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2116 transitions. [2021-12-06 19:30:18,828 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2116 transitions. Word has length 115 [2021-12-06 19:30:18,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:30:18,828 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2116 transitions. [2021-12-06 19:30:18,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:18,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2116 transitions. [2021-12-06 19:30:18,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:30:18,829 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:30:18,829 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, 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 19:30:18,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-12-06 19:30:18,829 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:30:18,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:30:18,830 INFO L85 PathProgramCache]: Analyzing trace with hash -256200210, now seen corresponding path program 1 times [2021-12-06 19:30:18,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:30:18,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497888966] [2021-12-06 19:30:18,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:30:18,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:30:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:18,899 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 19:30:18,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:30:18,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497888966] [2021-12-06 19:30:18,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497888966] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:30:18,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:30:18,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:30:18,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926369279] [2021-12-06 19:30:18,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:30:18,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:30:18,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:30:18,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:30:18,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:30:18,901 INFO L87 Difference]: Start difference. First operand 1563 states and 2116 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:21,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:30:21,182 INFO L93 Difference]: Finished difference Result 2745 states and 3748 transitions. [2021-12-06 19:30:21,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:30:21,183 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:30:21,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:30:21,185 INFO L225 Difference]: With dead ends: 2745 [2021-12-06 19:30:21,185 INFO L226 Difference]: Without dead ends: 2577 [2021-12-06 19:30:21,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:30:21,185 INFO L933 BasicCegarLoop]: 939 mSDtfsCounter, 6848 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 3248 mSolverCounterSat, 461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6848 SdHoareTripleChecker+Valid, 3860 SdHoareTripleChecker+Invalid, 3709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 3248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:30:21,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6848 Valid, 3860 Invalid, 3709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 3248 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:30:21,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2577 states. [2021-12-06 19:30:21,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2577 to 1563. [2021-12-06 19:30:21,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.378748370273794) internal successors, (2115), 1562 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:21,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2115 transitions. [2021-12-06 19:30:21,603 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2115 transitions. Word has length 115 [2021-12-06 19:30:21,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:30:21,603 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2115 transitions. [2021-12-06 19:30:21,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:21,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2115 transitions. [2021-12-06 19:30:21,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:30:21,604 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:30:21,604 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] [2021-12-06 19:30:21,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-12-06 19:30:21,604 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:30:21,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:30:21,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1520410929, now seen corresponding path program 1 times [2021-12-06 19:30:21,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:30:21,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587440252] [2021-12-06 19:30:21,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:30:21,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:30:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:21,670 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 19:30:21,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:30:21,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587440252] [2021-12-06 19:30:21,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587440252] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:30:21,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:30:21,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:30:21,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85847186] [2021-12-06 19:30:21,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:30:21,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:30:21,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:30:21,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:30:21,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:30:21,672 INFO L87 Difference]: Start difference. First operand 1563 states and 2115 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:23,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:30:23,880 INFO L93 Difference]: Finished difference Result 2748 states and 3750 transitions. [2021-12-06 19:30:23,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:30:23,880 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:30:23,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:30:23,882 INFO L225 Difference]: With dead ends: 2748 [2021-12-06 19:30:23,882 INFO L226 Difference]: Without dead ends: 2577 [2021-12-06 19:30:23,883 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 19:30:23,883 INFO L933 BasicCegarLoop]: 1008 mSDtfsCounter, 5151 mSDsluCounter, 3042 mSDsCounter, 0 mSdLazyCounter, 3412 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5151 SdHoareTripleChecker+Valid, 4050 SdHoareTripleChecker+Invalid, 3751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 3412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:30:23,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5151 Valid, 4050 Invalid, 3751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 3412 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:30:23,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2577 states. [2021-12-06 19:30:24,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2577 to 1563. [2021-12-06 19:30:24,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.378096479791395) internal successors, (2114), 1562 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:24,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2114 transitions. [2021-12-06 19:30:24,302 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2114 transitions. Word has length 115 [2021-12-06 19:30:24,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:30:24,302 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2114 transitions. [2021-12-06 19:30:24,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:24,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2114 transitions. [2021-12-06 19:30:24,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:30:24,303 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:30:24,303 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] [2021-12-06 19:30:24,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-12-06 19:30:24,303 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:30:24,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:30:24,303 INFO L85 PathProgramCache]: Analyzing trace with hash 392493866, now seen corresponding path program 1 times [2021-12-06 19:30:24,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:30:24,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772028045] [2021-12-06 19:30:24,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:30:24,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:30:24,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:24,425 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 19:30:24,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:30:24,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772028045] [2021-12-06 19:30:24,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772028045] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:30:24,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:30:24,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:30:24,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981819460] [2021-12-06 19:30:24,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:30:24,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:30:24,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:30:24,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:30:24,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:30:24,426 INFO L87 Difference]: Start difference. First operand 1563 states and 2114 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:28,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:30:28,614 INFO L93 Difference]: Finished difference Result 3540 states and 4922 transitions. [2021-12-06 19:30:28,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:30:28,615 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:30:28,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:30:28,618 INFO L225 Difference]: With dead ends: 3540 [2021-12-06 19:30:28,618 INFO L226 Difference]: Without dead ends: 3372 [2021-12-06 19:30:28,618 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 19:30:28,619 INFO L933 BasicCegarLoop]: 950 mSDtfsCounter, 11131 mSDsluCounter, 3222 mSDsCounter, 0 mSdLazyCounter, 3506 mSolverCounterSat, 1686 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11131 SdHoareTripleChecker+Valid, 4172 SdHoareTripleChecker+Invalid, 5192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1686 IncrementalHoareTripleChecker+Valid, 3506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:30:28,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11131 Valid, 4172 Invalid, 5192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1686 Valid, 3506 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-06 19:30:28,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3372 states. [2021-12-06 19:30:29,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3372 to 1567. [2021-12-06 19:30:29,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1538 states have (on average 1.377113133940182) internal successors, (2118), 1566 states have internal predecessors, (2118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:29,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2118 transitions. [2021-12-06 19:30:29,049 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2118 transitions. Word has length 115 [2021-12-06 19:30:29,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:30:29,050 INFO L470 AbstractCegarLoop]: Abstraction has 1567 states and 2118 transitions. [2021-12-06 19:30:29,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:29,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2118 transitions. [2021-12-06 19:30:29,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:30:29,051 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:30:29,051 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] [2021-12-06 19:30:29,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-12-06 19:30:29,051 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:30:29,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:30:29,051 INFO L85 PathProgramCache]: Analyzing trace with hash 344777754, now seen corresponding path program 1 times [2021-12-06 19:30:29,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:30:29,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601397034] [2021-12-06 19:30:29,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:30:29,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:30:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:29,124 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 19:30:29,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:30:29,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601397034] [2021-12-06 19:30:29,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601397034] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:30:29,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:30:29,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:30:29,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71850367] [2021-12-06 19:30:29,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:30:29,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:30:29,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:30:29,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:30:29,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:30:29,125 INFO L87 Difference]: Start difference. First operand 1567 states and 2118 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:31,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:30:31,410 INFO L93 Difference]: Finished difference Result 2832 states and 3901 transitions. [2021-12-06 19:30:31,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:30:31,411 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:30:31,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:30:31,412 INFO L225 Difference]: With dead ends: 2832 [2021-12-06 19:30:31,412 INFO L226 Difference]: Without dead ends: 2658 [2021-12-06 19:30:31,413 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 19:30:31,413 INFO L933 BasicCegarLoop]: 1222 mSDtfsCounter, 6155 mSDsluCounter, 3804 mSDsCounter, 0 mSdLazyCounter, 3926 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6155 SdHoareTripleChecker+Valid, 5026 SdHoareTripleChecker+Invalid, 4133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 3926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:30:31,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6155 Valid, 5026 Invalid, 4133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 3926 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:30:31,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2021-12-06 19:30:31,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 1567. [2021-12-06 19:30:31,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1538 states have (on average 1.3764629388816645) internal successors, (2117), 1566 states have internal predecessors, (2117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:31,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2117 transitions. [2021-12-06 19:30:31,842 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2117 transitions. Word has length 115 [2021-12-06 19:30:31,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:30:31,842 INFO L470 AbstractCegarLoop]: Abstraction has 1567 states and 2117 transitions. [2021-12-06 19:30:31,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:31,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2117 transitions. [2021-12-06 19:30:31,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:30:31,843 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:30:31,843 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] [2021-12-06 19:30:31,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-12-06 19:30:31,844 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:30:31,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:30:31,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1457153490, now seen corresponding path program 1 times [2021-12-06 19:30:31,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:30:31,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269506887] [2021-12-06 19:30:31,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:30:31,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:30:31,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:31,955 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 19:30:31,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:30:31,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269506887] [2021-12-06 19:30:31,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269506887] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:30:31,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:30:31,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:30:31,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075665870] [2021-12-06 19:30:31,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:30:31,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:30:31,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:30:31,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:30:31,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:30:31,956 INFO L87 Difference]: Start difference. First operand 1567 states and 2117 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:36,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:30:36,230 INFO L93 Difference]: Finished difference Result 3808 states and 5341 transitions. [2021-12-06 19:30:36,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:30:36,231 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:30:36,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:30:36,233 INFO L225 Difference]: With dead ends: 3808 [2021-12-06 19:30:36,233 INFO L226 Difference]: Without dead ends: 3630 [2021-12-06 19:30:36,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 19:30:36,234 INFO L933 BasicCegarLoop]: 1198 mSDtfsCounter, 11795 mSDsluCounter, 3976 mSDsCounter, 0 mSdLazyCounter, 4046 mSolverCounterSat, 1146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11795 SdHoareTripleChecker+Valid, 5174 SdHoareTripleChecker+Invalid, 5192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1146 IncrementalHoareTripleChecker+Valid, 4046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-06 19:30:36,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11795 Valid, 5174 Invalid, 5192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1146 Valid, 4046 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-06 19:30:36,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3630 states. [2021-12-06 19:30:36,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3630 to 1571. [2021-12-06 19:30:36,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1542 states have (on average 1.3754863813229572) internal successors, (2121), 1570 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:36,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 2121 transitions. [2021-12-06 19:30:36,685 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 2121 transitions. Word has length 115 [2021-12-06 19:30:36,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:30:36,685 INFO L470 AbstractCegarLoop]: Abstraction has 1571 states and 2121 transitions. [2021-12-06 19:30:36,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:36,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 2121 transitions. [2021-12-06 19:30:36,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:30:36,686 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:30:36,686 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] [2021-12-06 19:30:36,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-12-06 19:30:36,686 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:30:36,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:30:36,686 INFO L85 PathProgramCache]: Analyzing trace with hash -749712155, now seen corresponding path program 1 times [2021-12-06 19:30:36,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:30:36,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875346246] [2021-12-06 19:30:36,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:30:36,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:30:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:36,759 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 19:30:36,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:30:36,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875346246] [2021-12-06 19:30:36,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875346246] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:30:36,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:30:36,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:30:36,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392304763] [2021-12-06 19:30:36,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:30:36,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:30:36,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:30:36,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:30:36,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:30:36,761 INFO L87 Difference]: Start difference. First operand 1571 states and 2121 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:39,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:30:39,136 INFO L93 Difference]: Finished difference Result 2749 states and 3747 transitions. [2021-12-06 19:30:39,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:30:39,136 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:30:39,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:30:39,138 INFO L225 Difference]: With dead ends: 2749 [2021-12-06 19:30:39,138 INFO L226 Difference]: Without dead ends: 2581 [2021-12-06 19:30:39,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:30:39,139 INFO L933 BasicCegarLoop]: 893 mSDtfsCounter, 7126 mSDsluCounter, 2782 mSDsCounter, 0 mSdLazyCounter, 3045 mSolverCounterSat, 462 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7126 SdHoareTripleChecker+Valid, 3675 SdHoareTripleChecker+Invalid, 3507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 462 IncrementalHoareTripleChecker+Valid, 3045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:30:39,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7126 Valid, 3675 Invalid, 3507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [462 Valid, 3045 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:30:39,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2581 states. [2021-12-06 19:30:39,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2581 to 1571. [2021-12-06 19:30:39,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1542 states have (on average 1.3748378728923476) internal successors, (2120), 1570 states have internal predecessors, (2120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:39,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 2120 transitions. [2021-12-06 19:30:39,581 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 2120 transitions. Word has length 115 [2021-12-06 19:30:39,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:30:39,581 INFO L470 AbstractCegarLoop]: Abstraction has 1571 states and 2120 transitions. [2021-12-06 19:30:39,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:39,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 2120 transitions. [2021-12-06 19:30:39,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:30:39,582 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:30:39,582 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] [2021-12-06 19:30:39,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-12-06 19:30:39,582 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:30:39,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:30:39,582 INFO L85 PathProgramCache]: Analyzing trace with hash -829102154, now seen corresponding path program 1 times [2021-12-06 19:30:39,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:30:39,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049071484] [2021-12-06 19:30:39,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:30:39,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:30:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:39,658 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 19:30:39,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:30:39,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049071484] [2021-12-06 19:30:39,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049071484] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:30:39,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:30:39,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:30:39,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139006030] [2021-12-06 19:30:39,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:30:39,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:30:39,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:30:39,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:30:39,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:30:39,659 INFO L87 Difference]: Start difference. First operand 1571 states and 2120 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:42,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:30:42,189 INFO L93 Difference]: Finished difference Result 2832 states and 3896 transitions. [2021-12-06 19:30:42,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:30:42,190 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:30:42,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:30:42,191 INFO L225 Difference]: With dead ends: 2832 [2021-12-06 19:30:42,191 INFO L226 Difference]: Without dead ends: 2658 [2021-12-06 19:30:42,192 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 19:30:42,192 INFO L933 BasicCegarLoop]: 1094 mSDtfsCounter, 6126 mSDsluCounter, 4456 mSDsCounter, 0 mSdLazyCounter, 4206 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6126 SdHoareTripleChecker+Valid, 5550 SdHoareTripleChecker+Invalid, 4383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 4206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:30:42,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6126 Valid, 5550 Invalid, 4383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 4206 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:30:42,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2021-12-06 19:30:42,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 1571. [2021-12-06 19:30:42,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1542 states have (on average 1.374189364461738) internal successors, (2119), 1570 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:42,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 2119 transitions. [2021-12-06 19:30:42,635 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 2119 transitions. Word has length 115 [2021-12-06 19:30:42,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:30:42,635 INFO L470 AbstractCegarLoop]: Abstraction has 1571 states and 2119 transitions. [2021-12-06 19:30:42,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:42,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 2119 transitions. [2021-12-06 19:30:42,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:30:42,636 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:30:42,636 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] [2021-12-06 19:30:42,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-12-06 19:30:42,636 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:30:42,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:30:42,636 INFO L85 PathProgramCache]: Analyzing trace with hash -718530888, now seen corresponding path program 1 times [2021-12-06 19:30:42,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:30:42,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265563311] [2021-12-06 19:30:42,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:30:42,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:30:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:42,706 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 19:30:42,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:30:42,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265563311] [2021-12-06 19:30:42,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265563311] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:30:42,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:30:42,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:30:42,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063108221] [2021-12-06 19:30:42,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:30:42,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:30:42,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:30:42,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:30:42,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:30:42,707 INFO L87 Difference]: Start difference. First operand 1571 states and 2119 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:45,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:30:45,076 INFO L93 Difference]: Finished difference Result 2747 states and 3743 transitions. [2021-12-06 19:30:45,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:30:45,076 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:30:45,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:30:45,078 INFO L225 Difference]: With dead ends: 2747 [2021-12-06 19:30:45,078 INFO L226 Difference]: Without dead ends: 2581 [2021-12-06 19:30:45,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:30:45,079 INFO L933 BasicCegarLoop]: 911 mSDtfsCounter, 7052 mSDsluCounter, 2837 mSDsCounter, 0 mSdLazyCounter, 3054 mSolverCounterSat, 459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7052 SdHoareTripleChecker+Valid, 3748 SdHoareTripleChecker+Invalid, 3513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 459 IncrementalHoareTripleChecker+Valid, 3054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:30:45,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7052 Valid, 3748 Invalid, 3513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [459 Valid, 3054 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:30:45,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2581 states. [2021-12-06 19:30:45,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2581 to 1571. [2021-12-06 19:30:45,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1542 states have (on average 1.3728923476005188) internal successors, (2117), 1570 states have internal predecessors, (2117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:45,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 2117 transitions. [2021-12-06 19:30:45,526 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 2117 transitions. Word has length 115 [2021-12-06 19:30:45,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:30:45,526 INFO L470 AbstractCegarLoop]: Abstraction has 1571 states and 2117 transitions. [2021-12-06 19:30:45,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:45,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 2117 transitions. [2021-12-06 19:30:45,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:30:45,527 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:30:45,527 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:30:45,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-12-06 19:30:45,527 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:30:45,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:30:45,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1204438218, now seen corresponding path program 1 times [2021-12-06 19:30:45,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:30:45,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781095200] [2021-12-06 19:30:45,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:30:45,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:30:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:45,601 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 19:30:45,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:30:45,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781095200] [2021-12-06 19:30:45,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781095200] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:30:45,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:30:45,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:30:45,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655888614] [2021-12-06 19:30:45,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:30:45,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:30:45,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:30:45,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:30:45,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:30:45,602 INFO L87 Difference]: Start difference. First operand 1571 states and 2117 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:48,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:30:48,313 INFO L93 Difference]: Finished difference Result 2840 states and 3903 transitions. [2021-12-06 19:30:48,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:30:48,313 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:30:48,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:30:48,315 INFO L225 Difference]: With dead ends: 2840 [2021-12-06 19:30:48,315 INFO L226 Difference]: Without dead ends: 2658 [2021-12-06 19:30:48,316 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 19:30:48,316 INFO L933 BasicCegarLoop]: 1149 mSDtfsCounter, 6019 mSDsluCounter, 4620 mSDsCounter, 0 mSdLazyCounter, 4377 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6019 SdHoareTripleChecker+Valid, 5769 SdHoareTripleChecker+Invalid, 4552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 4377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:30:48,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6019 Valid, 5769 Invalid, 4552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 4377 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-06 19:30:48,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2021-12-06 19:30:48,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 1571. [2021-12-06 19:30:48,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1542 states have (on average 1.3715953307392996) internal successors, (2115), 1570 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:48,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 2115 transitions. [2021-12-06 19:30:48,766 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 2115 transitions. Word has length 115 [2021-12-06 19:30:48,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:30:48,766 INFO L470 AbstractCegarLoop]: Abstraction has 1571 states and 2115 transitions. [2021-12-06 19:30:48,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:48,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 2115 transitions. [2021-12-06 19:30:48,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:30:48,767 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:30:48,767 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] [2021-12-06 19:30:48,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-12-06 19:30:48,767 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:30:48,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:30:48,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1125048219, now seen corresponding path program 1 times [2021-12-06 19:30:48,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:30:48,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900066243] [2021-12-06 19:30:48,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:30:48,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:30:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:48,837 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 19:30:48,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:30:48,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900066243] [2021-12-06 19:30:48,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900066243] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:30:48,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:30:48,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:30:48,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145034226] [2021-12-06 19:30:48,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:30:48,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:30:48,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:30:48,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:30:48,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:30:48,838 INFO L87 Difference]: Start difference. First operand 1571 states and 2115 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:51,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:30:51,319 INFO L93 Difference]: Finished difference Result 2751 states and 3743 transitions. [2021-12-06 19:30:51,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:30:51,319 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:30:51,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:30:51,321 INFO L225 Difference]: With dead ends: 2751 [2021-12-06 19:30:51,321 INFO L226 Difference]: Without dead ends: 2581 [2021-12-06 19:30:51,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:30:51,322 INFO L933 BasicCegarLoop]: 917 mSDtfsCounter, 7016 mSDsluCounter, 2854 mSDsCounter, 0 mSdLazyCounter, 3061 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7016 SdHoareTripleChecker+Valid, 3771 SdHoareTripleChecker+Invalid, 3517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 3061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:30:51,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7016 Valid, 3771 Invalid, 3517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 3061 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:30:51,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2581 states. [2021-12-06 19:30:51,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2581 to 1571. [2021-12-06 19:30:51,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1542 states have (on average 1.3702983138780804) internal successors, (2113), 1570 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:51,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 2113 transitions. [2021-12-06 19:30:51,775 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 2113 transitions. Word has length 115 [2021-12-06 19:30:51,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:30:51,775 INFO L470 AbstractCegarLoop]: Abstraction has 1571 states and 2113 transitions. [2021-12-06 19:30:51,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:51,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 2113 transitions. [2021-12-06 19:30:51,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:30:51,776 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:30:51,776 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] [2021-12-06 19:30:51,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-12-06 19:30:51,777 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:30:51,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:30:51,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1904820616, now seen corresponding path program 1 times [2021-12-06 19:30:51,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:30:51,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567765538] [2021-12-06 19:30:51,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:30:51,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:30:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:51,888 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 19:30:51,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:30:51,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567765538] [2021-12-06 19:30:51,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567765538] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:30:51,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:30:51,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:30:51,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26734611] [2021-12-06 19:30:51,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:30:51,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:30:51,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:30:51,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:30:51,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:30:51,889 INFO L87 Difference]: Start difference. First operand 1571 states and 2113 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:56,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:30:56,351 INFO L93 Difference]: Finished difference Result 3384 states and 4670 transitions. [2021-12-06 19:30:56,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:30:56,351 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:30:56,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:30:56,354 INFO L225 Difference]: With dead ends: 3384 [2021-12-06 19:30:56,354 INFO L226 Difference]: Without dead ends: 3379 [2021-12-06 19:30:56,354 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 19:30:56,354 INFO L933 BasicCegarLoop]: 982 mSDtfsCounter, 10854 mSDsluCounter, 4234 mSDsCounter, 0 mSdLazyCounter, 4364 mSolverCounterSat, 1649 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10854 SdHoareTripleChecker+Valid, 5216 SdHoareTripleChecker+Invalid, 6013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1649 IncrementalHoareTripleChecker+Valid, 4364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:30:56,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10854 Valid, 5216 Invalid, 6013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1649 Valid, 4364 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-06 19:30:56,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3379 states. [2021-12-06 19:30:56,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3379 to 1579. [2021-12-06 19:30:56,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1550 states have (on average 1.3683870967741936) internal successors, (2121), 1578 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:56,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 2121 transitions. [2021-12-06 19:30:56,821 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 2121 transitions. Word has length 115 [2021-12-06 19:30:56,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:30:56,821 INFO L470 AbstractCegarLoop]: Abstraction has 1579 states and 2121 transitions. [2021-12-06 19:30:56,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:56,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 2121 transitions. [2021-12-06 19:30:56,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:30:56,822 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:30:56,822 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] [2021-12-06 19:30:56,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-12-06 19:30:56,823 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:30:56,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:30:56,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1101081512, now seen corresponding path program 1 times [2021-12-06 19:30:56,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:30:56,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940781935] [2021-12-06 19:30:56,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:30:56,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:30:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:56,896 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 19:30:56,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:30:56,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940781935] [2021-12-06 19:30:56,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940781935] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:30:56,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:30:56,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:30:56,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347682028] [2021-12-06 19:30:56,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:30:56,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:30:56,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:30:56,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:30:56,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:30:56,898 INFO L87 Difference]: Start difference. First operand 1579 states and 2121 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:59,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:30:59,369 INFO L93 Difference]: Finished difference Result 2586 states and 3489 transitions. [2021-12-06 19:30:59,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:30:59,370 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:30:59,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:30:59,371 INFO L225 Difference]: With dead ends: 2586 [2021-12-06 19:30:59,371 INFO L226 Difference]: Without dead ends: 2581 [2021-12-06 19:30:59,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:30:59,372 INFO L933 BasicCegarLoop]: 914 mSDtfsCounter, 7026 mSDsluCounter, 2842 mSDsCounter, 0 mSdLazyCounter, 3048 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7026 SdHoareTripleChecker+Valid, 3756 SdHoareTripleChecker+Invalid, 3504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 3048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:30:59,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7026 Valid, 3756 Invalid, 3504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 3048 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:30:59,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2581 states. [2021-12-06 19:30:59,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2581 to 1579. [2021-12-06 19:30:59,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1550 states have (on average 1.3670967741935485) internal successors, (2119), 1578 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:59,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 2119 transitions. [2021-12-06 19:30:59,836 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 2119 transitions. Word has length 115 [2021-12-06 19:30:59,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:30:59,837 INFO L470 AbstractCegarLoop]: Abstraction has 1579 states and 2119 transitions. [2021-12-06 19:30:59,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:30:59,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 2119 transitions. [2021-12-06 19:30:59,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:30:59,838 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:30:59,838 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] [2021-12-06 19:30:59,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-12-06 19:30:59,838 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:30:59,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:30:59,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1281688682, now seen corresponding path program 1 times [2021-12-06 19:30:59,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:30:59,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871234725] [2021-12-06 19:30:59,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:30:59,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:30:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:59,946 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 19:30:59,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:30:59,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871234725] [2021-12-06 19:30:59,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871234725] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:30:59,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:30:59,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:30:59,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563214644] [2021-12-06 19:30:59,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:30:59,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:30:59,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:30:59,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:30:59,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:30:59,947 INFO L87 Difference]: Start difference. First operand 1579 states and 2119 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:04,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:31:04,431 INFO L93 Difference]: Finished difference Result 3668 states and 5099 transitions. [2021-12-06 19:31:04,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:31:04,432 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:31:04,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:31:04,434 INFO L225 Difference]: With dead ends: 3668 [2021-12-06 19:31:04,434 INFO L226 Difference]: Without dead ends: 3651 [2021-12-06 19:31:04,435 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 19:31:04,435 INFO L933 BasicCegarLoop]: 1192 mSDtfsCounter, 8984 mSDsluCounter, 4079 mSDsCounter, 0 mSdLazyCounter, 4108 mSolverCounterSat, 954 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8984 SdHoareTripleChecker+Valid, 5271 SdHoareTripleChecker+Invalid, 5062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 954 IncrementalHoareTripleChecker+Valid, 4108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-06 19:31:04,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8984 Valid, 5271 Invalid, 5062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [954 Valid, 4108 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-06 19:31:04,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3651 states. [2021-12-06 19:31:04,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3651 to 1587. [2021-12-06 19:31:04,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1558 states have (on average 1.365211810012837) internal successors, (2127), 1586 states have internal predecessors, (2127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:04,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2127 transitions. [2021-12-06 19:31:04,921 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2127 transitions. Word has length 115 [2021-12-06 19:31:04,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:31:04,921 INFO L470 AbstractCegarLoop]: Abstraction has 1587 states and 2127 transitions. [2021-12-06 19:31:04,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:04,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2127 transitions. [2021-12-06 19:31:04,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:31:04,922 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:31:04,922 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] [2021-12-06 19:31:04,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-12-06 19:31:04,922 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:31:04,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:31:04,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1611160572, now seen corresponding path program 1 times [2021-12-06 19:31:04,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:31:04,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492329187] [2021-12-06 19:31:04,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:31:04,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:31:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:31:04,991 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 19:31:04,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:31:04,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492329187] [2021-12-06 19:31:04,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492329187] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:31:04,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:31:04,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:31:04,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28842598] [2021-12-06 19:31:04,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:31:04,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:31:04,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:31:04,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:31:04,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:31:04,993 INFO L87 Difference]: Start difference. First operand 1587 states and 2127 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:07,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:31:07,459 INFO L93 Difference]: Finished difference Result 2759 states and 3745 transitions. [2021-12-06 19:31:07,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:31:07,460 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:31:07,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:31:07,461 INFO L225 Difference]: With dead ends: 2759 [2021-12-06 19:31:07,461 INFO L226 Difference]: Without dead ends: 2589 [2021-12-06 19:31:07,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:31:07,462 INFO L933 BasicCegarLoop]: 965 mSDtfsCounter, 6704 mSDsluCounter, 2999 mSDsCounter, 0 mSdLazyCounter, 3241 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6704 SdHoareTripleChecker+Valid, 3964 SdHoareTripleChecker+Invalid, 3693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 3241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:31:07,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6704 Valid, 3964 Invalid, 3693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [452 Valid, 3241 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:31:07,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2589 states. [2021-12-06 19:31:07,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2589 to 1587. [2021-12-06 19:31:07,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1558 states have (on average 1.3639281129653402) internal successors, (2125), 1586 states have internal predecessors, (2125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:07,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2125 transitions. [2021-12-06 19:31:07,941 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2125 transitions. Word has length 115 [2021-12-06 19:31:07,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:31:07,941 INFO L470 AbstractCegarLoop]: Abstraction has 1587 states and 2125 transitions. [2021-12-06 19:31:07,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:07,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2125 transitions. [2021-12-06 19:31:07,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:31:07,942 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:31:07,942 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] [2021-12-06 19:31:07,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-12-06 19:31:07,942 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:31:07,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:31:07,943 INFO L85 PathProgramCache]: Analyzing trace with hash 345944937, now seen corresponding path program 1 times [2021-12-06 19:31:07,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:31:07,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992252171] [2021-12-06 19:31:07,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:31:07,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:31:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:31:08,058 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 19:31:08,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:31:08,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992252171] [2021-12-06 19:31:08,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992252171] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:31:08,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:31:08,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:31:08,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178234747] [2021-12-06 19:31:08,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:31:08,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:31:08,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:31:08,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:31:08,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:31:08,060 INFO L87 Difference]: Start difference. First operand 1587 states and 2125 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:12,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:31:12,423 INFO L93 Difference]: Finished difference Result 3392 states and 4672 transitions. [2021-12-06 19:31:12,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:31:12,423 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:31:12,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:31:12,426 INFO L225 Difference]: With dead ends: 3392 [2021-12-06 19:31:12,426 INFO L226 Difference]: Without dead ends: 3387 [2021-12-06 19:31:12,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 19:31:12,426 INFO L933 BasicCegarLoop]: 1028 mSDtfsCounter, 9878 mSDsluCounter, 3463 mSDsCounter, 0 mSdLazyCounter, 3711 mSolverCounterSat, 1627 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9878 SdHoareTripleChecker+Valid, 4491 SdHoareTripleChecker+Invalid, 5338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1627 IncrementalHoareTripleChecker+Valid, 3711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-06 19:31:12,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9878 Valid, 4491 Invalid, 5338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1627 Valid, 3711 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-06 19:31:12,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3387 states. [2021-12-06 19:31:12,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3387 to 1595. [2021-12-06 19:31:12,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1595 states, 1566 states have (on average 1.3620689655172413) internal successors, (2133), 1594 states have internal predecessors, (2133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:12,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1595 states to 1595 states and 2133 transitions. [2021-12-06 19:31:12,925 INFO L78 Accepts]: Start accepts. Automaton has 1595 states and 2133 transitions. Word has length 115 [2021-12-06 19:31:12,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:31:12,925 INFO L470 AbstractCegarLoop]: Abstraction has 1595 states and 2133 transitions. [2021-12-06 19:31:12,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:12,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1595 states and 2133 transitions. [2021-12-06 19:31:12,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:31:12,926 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:31:12,926 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] [2021-12-06 19:31:12,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-12-06 19:31:12,926 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:31:12,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:31:12,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1131938147, now seen corresponding path program 1 times [2021-12-06 19:31:12,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:31:12,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310022979] [2021-12-06 19:31:12,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:31:12,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:31:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:31:13,038 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 19:31:13,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:31:13,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310022979] [2021-12-06 19:31:13,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310022979] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:31:13,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:31:13,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:31:13,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575763196] [2021-12-06 19:31:13,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:31:13,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:31:13,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:31:13,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:31:13,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:31:13,039 INFO L87 Difference]: Start difference. First operand 1595 states and 2133 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:17,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:31:17,814 INFO L93 Difference]: Finished difference Result 3548 states and 4912 transitions. [2021-12-06 19:31:17,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:31:17,815 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:31:17,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:31:17,817 INFO L225 Difference]: With dead ends: 3548 [2021-12-06 19:31:17,817 INFO L226 Difference]: Without dead ends: 3382 [2021-12-06 19:31:17,818 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 19:31:17,818 INFO L933 BasicCegarLoop]: 959 mSDtfsCounter, 10967 mSDsluCounter, 3817 mSDsCounter, 0 mSdLazyCounter, 4141 mSolverCounterSat, 1654 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10967 SdHoareTripleChecker+Valid, 4776 SdHoareTripleChecker+Invalid, 5795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1654 IncrementalHoareTripleChecker+Valid, 4141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:31:17,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10967 Valid, 4776 Invalid, 5795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1654 Valid, 4141 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-06 19:31:17,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3382 states. [2021-12-06 19:31:18,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3382 to 1603. [2021-12-06 19:31:18,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1603 states, 1574 states have (on average 1.3602287166454892) internal successors, (2141), 1602 states have internal predecessors, (2141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:18,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1603 states to 1603 states and 2141 transitions. [2021-12-06 19:31:18,313 INFO L78 Accepts]: Start accepts. Automaton has 1603 states and 2141 transitions. Word has length 115 [2021-12-06 19:31:18,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:31:18,313 INFO L470 AbstractCegarLoop]: Abstraction has 1603 states and 2141 transitions. [2021-12-06 19:31:18,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:18,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1603 states and 2141 transitions. [2021-12-06 19:31:18,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:31:18,314 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:31:18,314 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] [2021-12-06 19:31:18,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-12-06 19:31:18,314 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:31:18,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:31:18,314 INFO L85 PathProgramCache]: Analyzing trace with hash -855451567, now seen corresponding path program 1 times [2021-12-06 19:31:18,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:31:18,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076020910] [2021-12-06 19:31:18,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:31:18,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:31:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:31:18,384 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 19:31:18,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:31:18,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076020910] [2021-12-06 19:31:18,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076020910] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:31:18,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:31:18,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:31:18,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335477128] [2021-12-06 19:31:18,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:31:18,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:31:18,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:31:18,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:31:18,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:31:18,386 INFO L87 Difference]: Start difference. First operand 1603 states and 2141 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:20,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:31:20,893 INFO L93 Difference]: Finished difference Result 2755 states and 3735 transitions. [2021-12-06 19:31:20,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:31:20,894 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:31:20,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:31:20,896 INFO L225 Difference]: With dead ends: 2755 [2021-12-06 19:31:20,896 INFO L226 Difference]: Without dead ends: 2589 [2021-12-06 19:31:20,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:31:20,896 INFO L933 BasicCegarLoop]: 898 mSDtfsCounter, 7063 mSDsluCounter, 2798 mSDsCounter, 0 mSdLazyCounter, 3031 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7063 SdHoareTripleChecker+Valid, 3696 SdHoareTripleChecker+Invalid, 3487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 3031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:31:20,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7063 Valid, 3696 Invalid, 3487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 3031 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:31:20,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2589 states. [2021-12-06 19:31:21,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2589 to 1603. [2021-12-06 19:31:21,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1603 states, 1574 states have (on average 1.3589580686149936) internal successors, (2139), 1602 states have internal predecessors, (2139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:21,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1603 states to 1603 states and 2139 transitions. [2021-12-06 19:31:21,391 INFO L78 Accepts]: Start accepts. Automaton has 1603 states and 2139 transitions. Word has length 115 [2021-12-06 19:31:21,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:31:21,391 INFO L470 AbstractCegarLoop]: Abstraction has 1603 states and 2139 transitions. [2021-12-06 19:31:21,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:21,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1603 states and 2139 transitions. [2021-12-06 19:31:21,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:31:21,392 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:31:21,392 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] [2021-12-06 19:31:21,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-12-06 19:31:21,392 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:31:21,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:31:21,392 INFO L85 PathProgramCache]: Analyzing trace with hash -524070255, now seen corresponding path program 1 times [2021-12-06 19:31:21,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:31:21,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667240804] [2021-12-06 19:31:21,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:31:21,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:31:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:31:21,505 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 19:31:21,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:31:21,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667240804] [2021-12-06 19:31:21,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667240804] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:31:21,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:31:21,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:31:21,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232880944] [2021-12-06 19:31:21,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:31:21,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:31:21,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:31:21,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:31:21,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:31:21,507 INFO L87 Difference]: Start difference. First operand 1603 states and 2139 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:26,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:31:26,543 INFO L93 Difference]: Finished difference Result 3848 states and 5361 transitions. [2021-12-06 19:31:26,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:31:26,544 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:31:26,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:31:26,546 INFO L225 Difference]: With dead ends: 3848 [2021-12-06 19:31:26,546 INFO L226 Difference]: Without dead ends: 3666 [2021-12-06 19:31:26,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 19:31:26,547 INFO L933 BasicCegarLoop]: 1230 mSDtfsCounter, 8150 mSDsluCounter, 4821 mSDsCounter, 0 mSdLazyCounter, 4844 mSolverCounterSat, 926 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8150 SdHoareTripleChecker+Valid, 6051 SdHoareTripleChecker+Invalid, 5770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 926 IncrementalHoareTripleChecker+Valid, 4844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:31:26,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8150 Valid, 6051 Invalid, 5770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [926 Valid, 4844 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-06 19:31:26,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3666 states. [2021-12-06 19:31:27,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3666 to 1611. [2021-12-06 19:31:27,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1611 states, 1582 states have (on average 1.3571428571428572) internal successors, (2147), 1610 states have internal predecessors, (2147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:27,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 2147 transitions. [2021-12-06 19:31:27,056 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 2147 transitions. Word has length 115 [2021-12-06 19:31:27,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:31:27,056 INFO L470 AbstractCegarLoop]: Abstraction has 1611 states and 2147 transitions. [2021-12-06 19:31:27,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:27,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 2147 transitions. [2021-12-06 19:31:27,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:31:27,057 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:31:27,057 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] [2021-12-06 19:31:27,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-12-06 19:31:27,057 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:31:27,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:31:27,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1618560164, now seen corresponding path program 1 times [2021-12-06 19:31:27,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:31:27,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356903743] [2021-12-06 19:31:27,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:31:27,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:31:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:31:27,128 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 19:31:27,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:31:27,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356903743] [2021-12-06 19:31:27,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356903743] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:31:27,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:31:27,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:31:27,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085666091] [2021-12-06 19:31:27,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:31:27,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:31:27,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:31:27,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:31:27,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:31:27,129 INFO L87 Difference]: Start difference. First operand 1611 states and 2147 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:29,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:31:29,708 INFO L93 Difference]: Finished difference Result 2767 states and 3745 transitions. [2021-12-06 19:31:29,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:31:29,709 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:31:29,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:31:29,711 INFO L225 Difference]: With dead ends: 2767 [2021-12-06 19:31:29,711 INFO L226 Difference]: Without dead ends: 2597 [2021-12-06 19:31:29,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:31:29,711 INFO L933 BasicCegarLoop]: 950 mSDtfsCounter, 6744 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 3219 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6744 SdHoareTripleChecker+Valid, 3904 SdHoareTripleChecker+Invalid, 3671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 3219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:31:29,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6744 Valid, 3904 Invalid, 3671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [452 Valid, 3219 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:31:29,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2021-12-06 19:31:30,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 1611. [2021-12-06 19:31:30,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1611 states, 1582 states have (on average 1.3558786346396965) internal successors, (2145), 1610 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:30,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 2145 transitions. [2021-12-06 19:31:30,222 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 2145 transitions. Word has length 115 [2021-12-06 19:31:30,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:31:30,222 INFO L470 AbstractCegarLoop]: Abstraction has 1611 states and 2145 transitions. [2021-12-06 19:31:30,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:30,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 2145 transitions. [2021-12-06 19:31:30,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:31:30,223 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:31:30,223 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] [2021-12-06 19:31:30,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-12-06 19:31:30,223 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:31:30,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:31:30,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1411525145, now seen corresponding path program 1 times [2021-12-06 19:31:30,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:31:30,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552835233] [2021-12-06 19:31:30,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:31:30,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:31:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:31:30,288 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 19:31:30,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:31:30,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552835233] [2021-12-06 19:31:30,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552835233] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:31:30,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:31:30,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:31:30,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688343635] [2021-12-06 19:31:30,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:31:30,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:31:30,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:31:30,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:31:30,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:31:30,289 INFO L87 Difference]: Start difference. First operand 1611 states and 2145 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:32,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:31:32,714 INFO L93 Difference]: Finished difference Result 2602 states and 3493 transitions. [2021-12-06 19:31:32,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:31:32,715 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:31:32,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:31:32,717 INFO L225 Difference]: With dead ends: 2602 [2021-12-06 19:31:32,717 INFO L226 Difference]: Without dead ends: 2597 [2021-12-06 19:31:32,717 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 19:31:32,717 INFO L933 BasicCegarLoop]: 1018 mSDtfsCounter, 3530 mSDsluCounter, 3074 mSDsCounter, 0 mSdLazyCounter, 3387 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3530 SdHoareTripleChecker+Valid, 4092 SdHoareTripleChecker+Invalid, 3604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 3387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:31:32,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3530 Valid, 4092 Invalid, 3604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 3387 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:31:32,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2021-12-06 19:31:33,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 1611. [2021-12-06 19:31:33,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1611 states, 1582 states have (on average 1.354614412136536) internal successors, (2143), 1610 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:33,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 2143 transitions. [2021-12-06 19:31:33,224 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 2143 transitions. Word has length 115 [2021-12-06 19:31:33,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:31:33,224 INFO L470 AbstractCegarLoop]: Abstraction has 1611 states and 2143 transitions. [2021-12-06 19:31:33,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:33,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 2143 transitions. [2021-12-06 19:31:33,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:31:33,225 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:31:33,225 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] [2021-12-06 19:31:33,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-12-06 19:31:33,225 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:31:33,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:31:33,226 INFO L85 PathProgramCache]: Analyzing trace with hash -969866088, now seen corresponding path program 1 times [2021-12-06 19:31:33,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:31:33,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611832617] [2021-12-06 19:31:33,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:31:33,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:31:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:31:33,332 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 19:31:33,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:31:33,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611832617] [2021-12-06 19:31:33,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611832617] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:31:33,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:31:33,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:31:33,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719750211] [2021-12-06 19:31:33,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:31:33,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:31:33,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:31:33,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:31:33,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:31:33,333 INFO L87 Difference]: Start difference. First operand 1611 states and 2143 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:38,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:31:38,339 INFO L93 Difference]: Finished difference Result 3564 states and 4918 transitions. [2021-12-06 19:31:38,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:31:38,340 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:31:38,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:31:38,342 INFO L225 Difference]: With dead ends: 3564 [2021-12-06 19:31:38,342 INFO L226 Difference]: Without dead ends: 3394 [2021-12-06 19:31:38,343 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 19:31:38,343 INFO L933 BasicCegarLoop]: 962 mSDtfsCounter, 10959 mSDsluCounter, 3826 mSDsCounter, 0 mSdLazyCounter, 4109 mSolverCounterSat, 1654 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10959 SdHoareTripleChecker+Valid, 4788 SdHoareTripleChecker+Invalid, 5763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1654 IncrementalHoareTripleChecker+Valid, 4109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:31:38,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10959 Valid, 4788 Invalid, 5763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1654 Valid, 4109 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-06 19:31:38,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3394 states. [2021-12-06 19:31:38,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3394 to 1619. [2021-12-06 19:31:38,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1619 states, 1590 states have (on average 1.3528301886792453) internal successors, (2151), 1618 states have internal predecessors, (2151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:38,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2151 transitions. [2021-12-06 19:31:38,865 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2151 transitions. Word has length 115 [2021-12-06 19:31:38,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:31:38,866 INFO L470 AbstractCegarLoop]: Abstraction has 1619 states and 2151 transitions. [2021-12-06 19:31:38,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:38,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2151 transitions. [2021-12-06 19:31:38,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:31:38,867 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:31:38,867 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] [2021-12-06 19:31:38,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-12-06 19:31:38,867 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:31:38,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:31:38,867 INFO L85 PathProgramCache]: Analyzing trace with hash 928914825, now seen corresponding path program 1 times [2021-12-06 19:31:38,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:31:38,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47078831] [2021-12-06 19:31:38,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:31:38,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:31:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:31:38,940 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 19:31:38,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:31:38,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47078831] [2021-12-06 19:31:38,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47078831] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:31:38,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:31:38,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:31:38,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133969061] [2021-12-06 19:31:38,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:31:38,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:31:38,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:31:38,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:31:38,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:31:38,942 INFO L87 Difference]: Start difference. First operand 1619 states and 2151 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:41,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:31:41,504 INFO L93 Difference]: Finished difference Result 2763 states and 3733 transitions. [2021-12-06 19:31:41,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:31:41,504 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:31:41,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:31:41,506 INFO L225 Difference]: With dead ends: 2763 [2021-12-06 19:31:41,506 INFO L226 Difference]: Without dead ends: 2597 [2021-12-06 19:31:41,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:31:41,507 INFO L933 BasicCegarLoop]: 897 mSDtfsCounter, 7057 mSDsluCounter, 2795 mSDsCounter, 0 mSdLazyCounter, 3005 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7057 SdHoareTripleChecker+Valid, 3692 SdHoareTripleChecker+Invalid, 3461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 3005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:31:41,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7057 Valid, 3692 Invalid, 3461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 3005 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:31:41,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2021-12-06 19:31:42,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 1619. [2021-12-06 19:31:42,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1619 states, 1590 states have (on average 1.3515723270440252) internal successors, (2149), 1618 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:42,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2149 transitions. [2021-12-06 19:31:42,028 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2149 transitions. Word has length 115 [2021-12-06 19:31:42,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:31:42,028 INFO L470 AbstractCegarLoop]: Abstraction has 1619 states and 2149 transitions. [2021-12-06 19:31:42,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:42,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2149 transitions. [2021-12-06 19:31:42,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:31:42,029 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:31:42,029 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] [2021-12-06 19:31:42,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-12-06 19:31:42,029 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:31:42,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:31:42,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1067800529, now seen corresponding path program 1 times [2021-12-06 19:31:42,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:31:42,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017255933] [2021-12-06 19:31:42,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:31:42,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:31:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:31:42,096 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 19:31:42,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:31:42,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017255933] [2021-12-06 19:31:42,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017255933] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:31:42,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:31:42,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:31:42,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383974019] [2021-12-06 19:31:42,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:31:42,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:31:42,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:31:42,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:31:42,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:31:42,097 INFO L87 Difference]: Start difference. First operand 1619 states and 2149 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:44,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:31:44,736 INFO L93 Difference]: Finished difference Result 3048 states and 4132 transitions. [2021-12-06 19:31:44,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:31:44,737 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:31:44,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:31:44,739 INFO L225 Difference]: With dead ends: 3048 [2021-12-06 19:31:44,739 INFO L226 Difference]: Without dead ends: 2818 [2021-12-06 19:31:44,739 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 19:31:44,739 INFO L933 BasicCegarLoop]: 1281 mSDtfsCounter, 3321 mSDsluCounter, 3899 mSDsCounter, 0 mSdLazyCounter, 3845 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3321 SdHoareTripleChecker+Valid, 5180 SdHoareTripleChecker+Invalid, 3903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 3845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:31:44,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3321 Valid, 5180 Invalid, 3903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 3845 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:31:44,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2818 states. [2021-12-06 19:31:45,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2818 to 1619. [2021-12-06 19:31:45,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1619 states, 1590 states have (on average 1.350314465408805) internal successors, (2147), 1618 states have internal predecessors, (2147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:45,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2147 transitions. [2021-12-06 19:31:45,270 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2147 transitions. Word has length 115 [2021-12-06 19:31:45,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:31:45,270 INFO L470 AbstractCegarLoop]: Abstraction has 1619 states and 2147 transitions. [2021-12-06 19:31:45,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:45,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2147 transitions. [2021-12-06 19:31:45,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:31:45,271 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:31:45,271 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] [2021-12-06 19:31:45,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-12-06 19:31:45,271 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:31:45,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:31:45,272 INFO L85 PathProgramCache]: Analyzing trace with hash -806810001, now seen corresponding path program 1 times [2021-12-06 19:31:45,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:31:45,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008420167] [2021-12-06 19:31:45,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:31:45,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:31:45,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:31:45,346 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 19:31:45,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:31:45,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008420167] [2021-12-06 19:31:45,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008420167] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:31:45,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:31:45,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:31:45,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625187580] [2021-12-06 19:31:45,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:31:45,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:31:45,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:31:45,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:31:45,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:31:45,347 INFO L87 Difference]: Start difference. First operand 1619 states and 2147 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:48,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:31:48,067 INFO L93 Difference]: Finished difference Result 2771 states and 3738 transitions. [2021-12-06 19:31:48,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:31:48,068 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:31:48,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:31:48,069 INFO L225 Difference]: With dead ends: 2771 [2021-12-06 19:31:48,069 INFO L226 Difference]: Without dead ends: 2597 [2021-12-06 19:31:48,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:31:48,070 INFO L933 BasicCegarLoop]: 898 mSDtfsCounter, 7052 mSDsluCounter, 2793 mSDsCounter, 0 mSdLazyCounter, 2993 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7052 SdHoareTripleChecker+Valid, 3691 SdHoareTripleChecker+Invalid, 3449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 2993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:31:48,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7052 Valid, 3691 Invalid, 3449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 2993 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:31:48,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2021-12-06 19:31:48,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 1619. [2021-12-06 19:31:48,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1619 states, 1590 states have (on average 1.349056603773585) internal successors, (2145), 1618 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:48,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2145 transitions. [2021-12-06 19:31:48,598 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2145 transitions. Word has length 115 [2021-12-06 19:31:48,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:31:48,598 INFO L470 AbstractCegarLoop]: Abstraction has 1619 states and 2145 transitions. [2021-12-06 19:31:48,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:48,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2145 transitions. [2021-12-06 19:31:48,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:31:48,599 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:31:48,599 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] [2021-12-06 19:31:48,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-12-06 19:31:48,599 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:31:48,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:31:48,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1105387101, now seen corresponding path program 1 times [2021-12-06 19:31:48,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:31:48,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694350551] [2021-12-06 19:31:48,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:31:48,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:31:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:31:48,673 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 19:31:48,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:31:48,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694350551] [2021-12-06 19:31:48,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694350551] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:31:48,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:31:48,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:31:48,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675118919] [2021-12-06 19:31:48,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:31:48,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:31:48,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:31:48,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:31:48,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:31:48,674 INFO L87 Difference]: Start difference. First operand 1619 states and 2145 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:51,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:31:51,466 INFO L93 Difference]: Finished difference Result 2888 states and 3919 transitions. [2021-12-06 19:31:51,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:31:51,467 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:31:51,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:31:51,469 INFO L225 Difference]: With dead ends: 2888 [2021-12-06 19:31:51,469 INFO L226 Difference]: Without dead ends: 2698 [2021-12-06 19:31:51,469 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 19:31:51,469 INFO L933 BasicCegarLoop]: 1159 mSDtfsCounter, 5976 mSDsluCounter, 4638 mSDsCounter, 0 mSdLazyCounter, 4305 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5976 SdHoareTripleChecker+Valid, 5797 SdHoareTripleChecker+Invalid, 4479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 4305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:31:51,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5976 Valid, 5797 Invalid, 4479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 4305 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-06 19:31:51,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-06 19:31:52,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1619. [2021-12-06 19:31:52,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1619 states, 1590 states have (on average 1.3477987421383648) internal successors, (2143), 1618 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:52,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2143 transitions. [2021-12-06 19:31:52,007 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2143 transitions. Word has length 115 [2021-12-06 19:31:52,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:31:52,007 INFO L470 AbstractCegarLoop]: Abstraction has 1619 states and 2143 transitions. [2021-12-06 19:31:52,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:52,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2143 transitions. [2021-12-06 19:31:52,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:31:52,008 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:31:52,008 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] [2021-12-06 19:31:52,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-12-06 19:31:52,008 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:31:52,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:31:52,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1171822500, now seen corresponding path program 1 times [2021-12-06 19:31:52,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:31:52,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564672218] [2021-12-06 19:31:52,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:31:52,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:31:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:31:52,081 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 19:31:52,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:31:52,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564672218] [2021-12-06 19:31:52,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564672218] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:31:52,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:31:52,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:31:52,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032316238] [2021-12-06 19:31:52,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:31:52,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:31:52,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:31:52,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:31:52,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:31:52,082 INFO L87 Difference]: Start difference. First operand 1619 states and 2143 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:54,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:31:54,805 INFO L93 Difference]: Finished difference Result 2771 states and 3734 transitions. [2021-12-06 19:31:54,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:31:54,805 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:31:54,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:31:54,807 INFO L225 Difference]: With dead ends: 2771 [2021-12-06 19:31:54,807 INFO L226 Difference]: Without dead ends: 2597 [2021-12-06 19:31:54,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:31:54,808 INFO L933 BasicCegarLoop]: 911 mSDtfsCounter, 6988 mSDsluCounter, 2832 mSDsCounter, 0 mSdLazyCounter, 3009 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6988 SdHoareTripleChecker+Valid, 3743 SdHoareTripleChecker+Invalid, 3462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 3009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:31:54,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6988 Valid, 3743 Invalid, 3462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 3009 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:31:54,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2021-12-06 19:31:55,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 1619. [2021-12-06 19:31:55,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1619 states, 1590 states have (on average 1.3465408805031447) internal successors, (2141), 1618 states have internal predecessors, (2141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:55,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2141 transitions. [2021-12-06 19:31:55,346 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2141 transitions. Word has length 115 [2021-12-06 19:31:55,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:31:55,346 INFO L470 AbstractCegarLoop]: Abstraction has 1619 states and 2141 transitions. [2021-12-06 19:31:55,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:31:55,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2141 transitions. [2021-12-06 19:31:55,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:31:55,347 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:31:55,347 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] [2021-12-06 19:31:55,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-12-06 19:31:55,347 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:31:55,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:31:55,347 INFO L85 PathProgramCache]: Analyzing trace with hash 740374602, now seen corresponding path program 1 times [2021-12-06 19:31:55,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:31:55,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983235137] [2021-12-06 19:31:55,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:31:55,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:31:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:31:55,457 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 19:31:55,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:31:55,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983235137] [2021-12-06 19:31:55,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983235137] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:31:55,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:31:55,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:31:55,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633630415] [2021-12-06 19:31:55,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:31:55,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:31:55,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:31:55,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:31:55,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:31:55,458 INFO L87 Difference]: Start difference. First operand 1619 states and 2141 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:00,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:32:00,459 INFO L93 Difference]: Finished difference Result 3872 states and 5367 transitions. [2021-12-06 19:32:00,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:32:00,460 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:32:00,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:32:00,462 INFO L225 Difference]: With dead ends: 3872 [2021-12-06 19:32:00,462 INFO L226 Difference]: Without dead ends: 3682 [2021-12-06 19:32:00,463 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 19:32:00,463 INFO L933 BasicCegarLoop]: 1207 mSDtfsCounter, 10575 mSDsluCounter, 4647 mSDsCounter, 0 mSdLazyCounter, 4530 mSolverCounterSat, 1109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10575 SdHoareTripleChecker+Valid, 5854 SdHoareTripleChecker+Invalid, 5639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1109 IncrementalHoareTripleChecker+Valid, 4530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:32:00,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10575 Valid, 5854 Invalid, 5639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1109 Valid, 4530 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-06 19:32:00,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3682 states. [2021-12-06 19:32:01,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3682 to 1627. [2021-12-06 19:32:01,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1627 states, 1598 states have (on average 1.3448060075093868) internal successors, (2149), 1626 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:01,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 2149 transitions. [2021-12-06 19:32:01,013 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 2149 transitions. Word has length 115 [2021-12-06 19:32:01,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:32:01,013 INFO L470 AbstractCegarLoop]: Abstraction has 1627 states and 2149 transitions. [2021-12-06 19:32:01,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:01,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 2149 transitions. [2021-12-06 19:32:01,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:32:01,014 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:32:01,014 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] [2021-12-06 19:32:01,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-12-06 19:32:01,014 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:32:01,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:32:01,014 INFO L85 PathProgramCache]: Analyzing trace with hash -661000676, now seen corresponding path program 1 times [2021-12-06 19:32:01,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:32:01,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946821548] [2021-12-06 19:32:01,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:32:01,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:32:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:32:01,080 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 19:32:01,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:32:01,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946821548] [2021-12-06 19:32:01,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946821548] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:32:01,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:32:01,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:32:01,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933834454] [2021-12-06 19:32:01,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:32:01,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:32:01,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:32:01,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:32:01,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:32:01,081 INFO L87 Difference]: Start difference. First operand 1627 states and 2149 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:03,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:32:03,530 INFO L93 Difference]: Finished difference Result 2775 states and 3735 transitions. [2021-12-06 19:32:03,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:32:03,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:32:03,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:32:03,532 INFO L225 Difference]: With dead ends: 2775 [2021-12-06 19:32:03,532 INFO L226 Difference]: Without dead ends: 2605 [2021-12-06 19:32:03,533 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 19:32:03,533 INFO L933 BasicCegarLoop]: 910 mSDtfsCounter, 4298 mSDsluCounter, 2833 mSDsCounter, 0 mSdLazyCounter, 3009 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4298 SdHoareTripleChecker+Valid, 3743 SdHoareTripleChecker+Invalid, 3295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 3009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:32:03,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4298 Valid, 3743 Invalid, 3295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 3009 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:32:03,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2021-12-06 19:32:04,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 1627. [2021-12-06 19:32:04,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1627 states, 1598 states have (on average 1.3435544430538173) internal successors, (2147), 1626 states have internal predecessors, (2147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:04,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 2147 transitions. [2021-12-06 19:32:04,082 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 2147 transitions. Word has length 115 [2021-12-06 19:32:04,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:32:04,082 INFO L470 AbstractCegarLoop]: Abstraction has 1627 states and 2147 transitions. [2021-12-06 19:32:04,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:04,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 2147 transitions. [2021-12-06 19:32:04,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:32:04,083 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:32:04,083 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] [2021-12-06 19:32:04,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-12-06 19:32:04,083 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:32:04,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:32:04,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1012953610, now seen corresponding path program 1 times [2021-12-06 19:32:04,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:32:04,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360432527] [2021-12-06 19:32:04,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:32:04,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:32:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:32:04,160 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 19:32:04,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:32:04,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360432527] [2021-12-06 19:32:04,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360432527] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:32:04,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:32:04,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:32:04,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648501755] [2021-12-06 19:32:04,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:32:04,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:32:04,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:32:04,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:32:04,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:32:04,161 INFO L87 Difference]: Start difference. First operand 1627 states and 2147 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:07,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:32:07,063 INFO L93 Difference]: Finished difference Result 2886 states and 3906 transitions. [2021-12-06 19:32:07,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:32:07,063 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:32:07,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:32:07,065 INFO L225 Difference]: With dead ends: 2886 [2021-12-06 19:32:07,065 INFO L226 Difference]: Without dead ends: 2698 [2021-12-06 19:32:07,066 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 19:32:07,066 INFO L933 BasicCegarLoop]: 1146 mSDtfsCounter, 5975 mSDsluCounter, 4606 mSDsCounter, 0 mSdLazyCounter, 4257 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5975 SdHoareTripleChecker+Valid, 5752 SdHoareTripleChecker+Invalid, 4431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 4257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:32:07,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5975 Valid, 5752 Invalid, 4431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 4257 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-06 19:32:07,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-06 19:32:07,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1627. [2021-12-06 19:32:07,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1627 states, 1598 states have (on average 1.3423028785982478) internal successors, (2145), 1626 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:07,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 2145 transitions. [2021-12-06 19:32:07,619 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 2145 transitions. Word has length 115 [2021-12-06 19:32:07,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:32:07,619 INFO L470 AbstractCegarLoop]: Abstraction has 1627 states and 2145 transitions. [2021-12-06 19:32:07,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:07,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 2145 transitions. [2021-12-06 19:32:07,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:32:07,620 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:32:07,620 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] [2021-12-06 19:32:07,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-12-06 19:32:07,620 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:32:07,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:32:07,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1201496803, now seen corresponding path program 1 times [2021-12-06 19:32:07,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:32:07,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985919150] [2021-12-06 19:32:07,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:32:07,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:32:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:32:07,726 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 19:32:07,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:32:07,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985919150] [2021-12-06 19:32:07,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985919150] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:32:07,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:32:07,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:32:07,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561920524] [2021-12-06 19:32:07,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:32:07,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:32:07,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:32:07,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:32:07,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:32:07,727 INFO L87 Difference]: Start difference. First operand 1627 states and 2145 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:13,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:32:13,005 INFO L93 Difference]: Finished difference Result 3872 states and 5361 transitions. [2021-12-06 19:32:13,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:32:13,005 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:32:13,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:32:13,008 INFO L225 Difference]: With dead ends: 3872 [2021-12-06 19:32:13,008 INFO L226 Difference]: Without dead ends: 3682 [2021-12-06 19:32:13,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 19:32:13,009 INFO L933 BasicCegarLoop]: 1194 mSDtfsCounter, 11675 mSDsluCounter, 5106 mSDsCounter, 0 mSdLazyCounter, 4808 mSolverCounterSat, 1138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11675 SdHoareTripleChecker+Valid, 6300 SdHoareTripleChecker+Invalid, 5946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1138 IncrementalHoareTripleChecker+Valid, 4808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:32:13,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11675 Valid, 6300 Invalid, 5946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1138 Valid, 4808 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-06 19:32:13,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3682 states. [2021-12-06 19:32:13,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3682 to 1635. [2021-12-06 19:32:13,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1606 states have (on average 1.3405977584059776) internal successors, (2153), 1634 states have internal predecessors, (2153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:13,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2153 transitions. [2021-12-06 19:32:13,576 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2153 transitions. Word has length 115 [2021-12-06 19:32:13,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:32:13,577 INFO L470 AbstractCegarLoop]: Abstraction has 1635 states and 2153 transitions. [2021-12-06 19:32:13,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:13,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2153 transitions. [2021-12-06 19:32:13,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:32:13,578 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:32:13,578 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] [2021-12-06 19:32:13,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-12-06 19:32:13,578 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:32:13,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:32:13,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1181273391, now seen corresponding path program 1 times [2021-12-06 19:32:13,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:32:13,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149900087] [2021-12-06 19:32:13,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:32:13,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:32:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:32:13,651 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 19:32:13,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:32:13,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149900087] [2021-12-06 19:32:13,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149900087] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:32:13,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:32:13,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:32:13,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414892392] [2021-12-06 19:32:13,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:32:13,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:32:13,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:32:13,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:32:13,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:32:13,652 INFO L87 Difference]: Start difference. First operand 1635 states and 2153 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:16,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:32:16,426 INFO L93 Difference]: Finished difference Result 2787 states and 3744 transitions. [2021-12-06 19:32:16,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:32:16,426 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:32:16,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:32:16,428 INFO L225 Difference]: With dead ends: 2787 [2021-12-06 19:32:16,428 INFO L226 Difference]: Without dead ends: 2613 [2021-12-06 19:32:16,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:32:16,429 INFO L933 BasicCegarLoop]: 920 mSDtfsCounter, 6935 mSDsluCounter, 2859 mSDsCounter, 0 mSdLazyCounter, 3017 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6935 SdHoareTripleChecker+Valid, 3779 SdHoareTripleChecker+Invalid, 3467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 3017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:32:16,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6935 Valid, 3779 Invalid, 3467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 3017 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:32:16,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2613 states. [2021-12-06 19:32:16,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2613 to 1635. [2021-12-06 19:32:16,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1606 states have (on average 1.3393524283935243) internal successors, (2151), 1634 states have internal predecessors, (2151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:16,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2151 transitions. [2021-12-06 19:32:16,996 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2151 transitions. Word has length 115 [2021-12-06 19:32:16,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:32:16,996 INFO L470 AbstractCegarLoop]: Abstraction has 1635 states and 2151 transitions. [2021-12-06 19:32:16,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:16,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2151 transitions. [2021-12-06 19:32:16,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:32:16,997 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:32:16,997 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] [2021-12-06 19:32:16,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-12-06 19:32:16,997 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:32:16,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:32:16,998 INFO L85 PathProgramCache]: Analyzing trace with hash -396269581, now seen corresponding path program 1 times [2021-12-06 19:32:16,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:32:16,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903955088] [2021-12-06 19:32:16,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:32:16,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:32:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:32:17,075 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 19:32:17,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:32:17,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903955088] [2021-12-06 19:32:17,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903955088] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:32:17,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:32:17,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:32:17,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849217120] [2021-12-06 19:32:17,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:32:17,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:32:17,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:32:17,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:32:17,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:32:17,076 INFO L87 Difference]: Start difference. First operand 1635 states and 2151 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:19,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:32:19,919 INFO L93 Difference]: Finished difference Result 2886 states and 3898 transitions. [2021-12-06 19:32:19,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:32:19,919 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:32:19,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:32:19,921 INFO L225 Difference]: With dead ends: 2886 [2021-12-06 19:32:19,921 INFO L226 Difference]: Without dead ends: 2698 [2021-12-06 19:32:19,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-06 19:32:19,921 INFO L933 BasicCegarLoop]: 1031 mSDtfsCounter, 6372 mSDsluCounter, 4371 mSDsCounter, 0 mSdLazyCounter, 3928 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6372 SdHoareTripleChecker+Valid, 5402 SdHoareTripleChecker+Invalid, 4104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 3928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:32:19,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6372 Valid, 5402 Invalid, 4104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 3928 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:32:19,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-06 19:32:20,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1635. [2021-12-06 19:32:20,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1606 states have (on average 1.338107098381071) internal successors, (2149), 1634 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:20,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2149 transitions. [2021-12-06 19:32:20,487 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2149 transitions. Word has length 115 [2021-12-06 19:32:20,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:32:20,487 INFO L470 AbstractCegarLoop]: Abstraction has 1635 states and 2149 transitions. [2021-12-06 19:32:20,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:20,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2149 transitions. [2021-12-06 19:32:20,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:32:20,488 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:32:20,488 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] [2021-12-06 19:32:20,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-12-06 19:32:20,488 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:32:20,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:32:20,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1691832070, now seen corresponding path program 1 times [2021-12-06 19:32:20,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:32:20,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883449283] [2021-12-06 19:32:20,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:32:20,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:32:20,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:32:20,554 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 19:32:20,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:32:20,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883449283] [2021-12-06 19:32:20,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883449283] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:32:20,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:32:20,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:32:20,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505507548] [2021-12-06 19:32:20,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:32:20,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:32:20,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:32:20,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:32:20,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:32:20,555 INFO L87 Difference]: Start difference. First operand 1635 states and 2149 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:23,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:32:23,060 INFO L93 Difference]: Finished difference Result 2783 states and 3735 transitions. [2021-12-06 19:32:23,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:32:23,060 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:32:23,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:32:23,062 INFO L225 Difference]: With dead ends: 2783 [2021-12-06 19:32:23,062 INFO L226 Difference]: Without dead ends: 2613 [2021-12-06 19:32:23,063 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 19:32:23,063 INFO L933 BasicCegarLoop]: 928 mSDtfsCounter, 3691 mSDsluCounter, 2887 mSDsCounter, 0 mSdLazyCounter, 3033 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3691 SdHoareTripleChecker+Valid, 3815 SdHoareTripleChecker+Invalid, 3251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 3033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:32:23,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3691 Valid, 3815 Invalid, 3251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 3033 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:32:23,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2613 states. [2021-12-06 19:32:23,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2613 to 1635. [2021-12-06 19:32:23,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1606 states have (on average 1.3368617683686177) internal successors, (2147), 1634 states have internal predecessors, (2147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:23,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2147 transitions. [2021-12-06 19:32:23,631 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2147 transitions. Word has length 115 [2021-12-06 19:32:23,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:32:23,631 INFO L470 AbstractCegarLoop]: Abstraction has 1635 states and 2147 transitions. [2021-12-06 19:32:23,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:23,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2147 transitions. [2021-12-06 19:32:23,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:32:23,632 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:32:23,633 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] [2021-12-06 19:32:23,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-12-06 19:32:23,633 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:32:23,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:32:23,633 INFO L85 PathProgramCache]: Analyzing trace with hash 629957884, now seen corresponding path program 1 times [2021-12-06 19:32:23,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:32:23,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468034289] [2021-12-06 19:32:23,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:32:23,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:32:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:32:23,700 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 19:32:23,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:32:23,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468034289] [2021-12-06 19:32:23,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468034289] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:32:23,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:32:23,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:32:23,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016537503] [2021-12-06 19:32:23,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:32:23,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:32:23,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:32:23,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:32:23,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:32:23,701 INFO L87 Difference]: Start difference. First operand 1635 states and 2147 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:26,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:32:26,310 INFO L93 Difference]: Finished difference Result 2886 states and 3894 transitions. [2021-12-06 19:32:26,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:32:26,310 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:32:26,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:32:26,312 INFO L225 Difference]: With dead ends: 2886 [2021-12-06 19:32:26,312 INFO L226 Difference]: Without dead ends: 2698 [2021-12-06 19:32:26,313 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 19:32:26,313 INFO L933 BasicCegarLoop]: 1150 mSDtfsCounter, 4893 mSDsluCounter, 3582 mSDsCounter, 0 mSdLazyCounter, 3533 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4893 SdHoareTripleChecker+Valid, 4732 SdHoareTripleChecker+Invalid, 3690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 3533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:32:26,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4893 Valid, 4732 Invalid, 3690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 3533 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:32:26,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-06 19:32:26,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1635. [2021-12-06 19:32:26,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1606 states have (on average 1.3356164383561644) internal successors, (2145), 1634 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:26,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2145 transitions. [2021-12-06 19:32:26,886 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2145 transitions. Word has length 115 [2021-12-06 19:32:26,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:32:26,886 INFO L470 AbstractCegarLoop]: Abstraction has 1635 states and 2145 transitions. [2021-12-06 19:32:26,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:26,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2145 transitions. [2021-12-06 19:32:26,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 19:32:26,887 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:32:26,887 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] [2021-12-06 19:32:26,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-12-06 19:32:26,887 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:32:26,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:32:26,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1123766720, now seen corresponding path program 1 times [2021-12-06 19:32:26,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:32:26,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038522233] [2021-12-06 19:32:26,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:32:26,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:32:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:32:26,958 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 19:32:26,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:32:26,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038522233] [2021-12-06 19:32:26,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038522233] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:32:26,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:32:26,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:32:26,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050552382] [2021-12-06 19:32:26,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:32:26,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:32:26,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:32:26,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:32:26,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:32:26,959 INFO L87 Difference]: Start difference. First operand 1635 states and 2145 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:29,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:32:29,817 INFO L93 Difference]: Finished difference Result 2880 states and 3883 transitions. [2021-12-06 19:32:29,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:32:29,818 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-12-06 19:32:29,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:32:29,819 INFO L225 Difference]: With dead ends: 2880 [2021-12-06 19:32:29,819 INFO L226 Difference]: Without dead ends: 2698 [2021-12-06 19:32:29,820 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 19:32:29,820 INFO L933 BasicCegarLoop]: 1082 mSDtfsCounter, 6064 mSDsluCounter, 4420 mSDsCounter, 0 mSdLazyCounter, 4014 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6064 SdHoareTripleChecker+Valid, 5502 SdHoareTripleChecker+Invalid, 4190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 4014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:32:29,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6064 Valid, 5502 Invalid, 4190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 4014 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:32:29,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-06 19:32:30,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1635. [2021-12-06 19:32:30,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1606 states have (on average 1.334371108343711) internal successors, (2143), 1634 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:30,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2143 transitions. [2021-12-06 19:32:30,404 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2143 transitions. Word has length 115 [2021-12-06 19:32:30,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:32:30,404 INFO L470 AbstractCegarLoop]: Abstraction has 1635 states and 2143 transitions. [2021-12-06 19:32:30,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:30,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2143 transitions. [2021-12-06 19:32:30,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:32:30,405 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:32:30,405 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] [2021-12-06 19:32:30,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-12-06 19:32:30,405 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:32:30,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:32:30,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1767306155, now seen corresponding path program 1 times [2021-12-06 19:32:30,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:32:30,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817801715] [2021-12-06 19:32:30,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:32:30,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:32:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:32:30,472 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 19:32:30,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:32:30,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817801715] [2021-12-06 19:32:30,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817801715] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:32:30,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:32:30,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:32:30,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270529280] [2021-12-06 19:32:30,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:32:30,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:32:30,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:32:30,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:32:30,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:32:30,474 INFO L87 Difference]: Start difference. First operand 1635 states and 2143 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:33,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:32:33,192 INFO L93 Difference]: Finished difference Result 2876 states and 3874 transitions. [2021-12-06 19:32:33,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:32:33,192 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:32:33,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:32:33,194 INFO L225 Difference]: With dead ends: 2876 [2021-12-06 19:32:33,194 INFO L226 Difference]: Without dead ends: 2698 [2021-12-06 19:32:33,195 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 19:32:33,195 INFO L933 BasicCegarLoop]: 1158 mSDtfsCounter, 3991 mSDsluCounter, 3610 mSDsCounter, 0 mSdLazyCounter, 3543 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3991 SdHoareTripleChecker+Valid, 4768 SdHoareTripleChecker+Invalid, 3683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 3543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:32:33,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3991 Valid, 4768 Invalid, 3683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 3543 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:32:33,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-06 19:32:33,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1631. [2021-12-06 19:32:33,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1602 states have (on average 1.33458177278402) internal successors, (2138), 1630 states have internal predecessors, (2138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:33,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2138 transitions. [2021-12-06 19:32:33,773 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2138 transitions. Word has length 116 [2021-12-06 19:32:33,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:32:33,773 INFO L470 AbstractCegarLoop]: Abstraction has 1631 states and 2138 transitions. [2021-12-06 19:32:33,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:33,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2138 transitions. [2021-12-06 19:32:33,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:32:33,774 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:32:33,774 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] [2021-12-06 19:32:33,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-12-06 19:32:33,774 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:32:33,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:32:33,775 INFO L85 PathProgramCache]: Analyzing trace with hash 637349495, now seen corresponding path program 1 times [2021-12-06 19:32:33,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:32:33,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504016223] [2021-12-06 19:32:33,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:32:33,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:32:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:32:33,844 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 19:32:33,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:32:33,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504016223] [2021-12-06 19:32:33,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504016223] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:32:33,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:32:33,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:32:33,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165957173] [2021-12-06 19:32:33,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:32:33,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:32:33,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:32:33,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:32:33,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:32:33,845 INFO L87 Difference]: Start difference. First operand 1631 states and 2138 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:36,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:32:36,528 INFO L93 Difference]: Finished difference Result 2872 states and 3870 transitions. [2021-12-06 19:32:36,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:32:36,529 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:32:36,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:32:36,530 INFO L225 Difference]: With dead ends: 2872 [2021-12-06 19:32:36,531 INFO L226 Difference]: Without dead ends: 2698 [2021-12-06 19:32:36,531 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 19:32:36,531 INFO L933 BasicCegarLoop]: 1163 mSDtfsCounter, 4833 mSDsluCounter, 3631 mSDsCounter, 0 mSdLazyCounter, 3563 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4833 SdHoareTripleChecker+Valid, 4794 SdHoareTripleChecker+Invalid, 3720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 3563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:32:36,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4833 Valid, 4794 Invalid, 3720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 3563 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:32:36,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-06 19:32:37,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1627. [2021-12-06 19:32:37,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1627 states, 1598 states have (on average 1.334793491864831) internal successors, (2133), 1626 states have internal predecessors, (2133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:37,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 2133 transitions. [2021-12-06 19:32:37,110 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 2133 transitions. Word has length 116 [2021-12-06 19:32:37,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:32:37,110 INFO L470 AbstractCegarLoop]: Abstraction has 1627 states and 2133 transitions. [2021-12-06 19:32:37,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:37,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 2133 transitions. [2021-12-06 19:32:37,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:32:37,111 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:32:37,111 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] [2021-12-06 19:32:37,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-12-06 19:32:37,111 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:32:37,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:32:37,111 INFO L85 PathProgramCache]: Analyzing trace with hash 845319688, now seen corresponding path program 1 times [2021-12-06 19:32:37,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:32:37,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713736734] [2021-12-06 19:32:37,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:32:37,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:32:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:32:37,179 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 19:32:37,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:32:37,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713736734] [2021-12-06 19:32:37,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713736734] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:32:37,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:32:37,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:32:37,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744498965] [2021-12-06 19:32:37,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:32:37,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:32:37,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:32:37,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:32:37,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:32:37,180 INFO L87 Difference]: Start difference. First operand 1627 states and 2133 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:39,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:32:39,793 INFO L93 Difference]: Finished difference Result 2772 states and 3716 transitions. [2021-12-06 19:32:39,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:32:39,794 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:32:39,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:32:39,795 INFO L225 Difference]: With dead ends: 2772 [2021-12-06 19:32:39,795 INFO L226 Difference]: Without dead ends: 2605 [2021-12-06 19:32:39,796 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 19:32:39,796 INFO L933 BasicCegarLoop]: 956 mSDtfsCounter, 5178 mSDsluCounter, 2972 mSDsCounter, 0 mSdLazyCounter, 3090 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5178 SdHoareTripleChecker+Valid, 3928 SdHoareTripleChecker+Invalid, 3414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 3090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:32:39,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5178 Valid, 3928 Invalid, 3414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 3090 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:32:39,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2021-12-06 19:32:40,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 1627. [2021-12-06 19:32:40,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1627 states, 1598 states have (on average 1.3341677096370463) internal successors, (2132), 1626 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:40,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 2132 transitions. [2021-12-06 19:32:40,378 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 2132 transitions. Word has length 116 [2021-12-06 19:32:40,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:32:40,378 INFO L470 AbstractCegarLoop]: Abstraction has 1627 states and 2132 transitions. [2021-12-06 19:32:40,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:40,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 2132 transitions. [2021-12-06 19:32:40,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:32:40,379 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:32:40,379 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] [2021-12-06 19:32:40,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-12-06 19:32:40,379 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:32:40,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:32:40,379 INFO L85 PathProgramCache]: Analyzing trace with hash -290282989, now seen corresponding path program 1 times [2021-12-06 19:32:40,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:32:40,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211303996] [2021-12-06 19:32:40,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:32:40,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:32:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:32:40,455 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 19:32:40,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:32:40,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211303996] [2021-12-06 19:32:40,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211303996] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:32:40,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:32:40,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:32:40,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000333360] [2021-12-06 19:32:40,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:32:40,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:32:40,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:32:40,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:32:40,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:32:40,456 INFO L87 Difference]: Start difference. First operand 1627 states and 2132 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:43,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:32:43,338 INFO L93 Difference]: Finished difference Result 2870 states and 3866 transitions. [2021-12-06 19:32:43,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:32:43,339 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:32:43,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:32:43,341 INFO L225 Difference]: With dead ends: 2870 [2021-12-06 19:32:43,341 INFO L226 Difference]: Without dead ends: 2698 [2021-12-06 19:32:43,342 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 19:32:43,342 INFO L933 BasicCegarLoop]: 1095 mSDtfsCounter, 6023 mSDsluCounter, 4460 mSDsCounter, 0 mSdLazyCounter, 4040 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6023 SdHoareTripleChecker+Valid, 5555 SdHoareTripleChecker+Invalid, 4216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 4040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:32:43,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6023 Valid, 5555 Invalid, 4216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 4040 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:32:43,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-06 19:32:43,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1627. [2021-12-06 19:32:43,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1627 states, 1598 states have (on average 1.3335419274092615) internal successors, (2131), 1626 states have internal predecessors, (2131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:43,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 2131 transitions. [2021-12-06 19:32:43,942 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 2131 transitions. Word has length 116 [2021-12-06 19:32:43,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:32:43,942 INFO L470 AbstractCegarLoop]: Abstraction has 1627 states and 2131 transitions. [2021-12-06 19:32:43,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:43,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 2131 transitions. [2021-12-06 19:32:43,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:32:43,943 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:32:43,944 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] [2021-12-06 19:32:43,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-12-06 19:32:43,944 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:32:43,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:32:43,944 INFO L85 PathProgramCache]: Analyzing trace with hash 871035336, now seen corresponding path program 1 times [2021-12-06 19:32:43,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:32:43,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523337226] [2021-12-06 19:32:43,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:32:43,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:32:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:32:44,023 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 19:32:44,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:32:44,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523337226] [2021-12-06 19:32:44,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523337226] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:32:44,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:32:44,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:32:44,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113584535] [2021-12-06 19:32:44,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:32:44,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:32:44,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:32:44,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:32:44,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:32:44,024 INFO L87 Difference]: Start difference. First operand 1627 states and 2131 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:46,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:32:46,783 INFO L93 Difference]: Finished difference Result 2740 states and 3663 transitions. [2021-12-06 19:32:46,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:32:46,783 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:32:46,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:32:46,785 INFO L225 Difference]: With dead ends: 2740 [2021-12-06 19:32:46,785 INFO L226 Difference]: Without dead ends: 2574 [2021-12-06 19:32:46,785 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 19:32:46,785 INFO L933 BasicCegarLoop]: 953 mSDtfsCounter, 6682 mSDsluCounter, 2961 mSDsCounter, 0 mSdLazyCounter, 3080 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6682 SdHoareTripleChecker+Valid, 3914 SdHoareTripleChecker+Invalid, 3514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 3080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:32:46,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6682 Valid, 3914 Invalid, 3514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 3080 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:32:46,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2574 states. [2021-12-06 19:32:47,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2574 to 1630. [2021-12-06 19:32:47,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1630 states, 1601 states have (on average 1.3335415365396628) internal successors, (2135), 1629 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:47,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 2135 transitions. [2021-12-06 19:32:47,369 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 2135 transitions. Word has length 116 [2021-12-06 19:32:47,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:32:47,369 INFO L470 AbstractCegarLoop]: Abstraction has 1630 states and 2135 transitions. [2021-12-06 19:32:47,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:47,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 2135 transitions. [2021-12-06 19:32:47,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:32:47,370 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:32:47,370 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] [2021-12-06 19:32:47,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-12-06 19:32:47,370 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:32:47,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:32:47,371 INFO L85 PathProgramCache]: Analyzing trace with hash 621576749, now seen corresponding path program 1 times [2021-12-06 19:32:47,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:32:47,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886747665] [2021-12-06 19:32:47,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:32:47,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:32:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:32:47,475 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 19:32:47,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:32:47,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886747665] [2021-12-06 19:32:47,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886747665] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:32:47,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:32:47,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:32:47,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719293978] [2021-12-06 19:32:47,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:32:47,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:32:47,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:32:47,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:32:47,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:32:47,476 INFO L87 Difference]: Start difference. First operand 1630 states and 2135 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:52,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:32:52,633 INFO L93 Difference]: Finished difference Result 3839 states and 5301 transitions. [2021-12-06 19:32:52,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:32:52,633 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:32:52,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:32:52,636 INFO L225 Difference]: With dead ends: 3839 [2021-12-06 19:32:52,636 INFO L226 Difference]: Without dead ends: 3667 [2021-12-06 19:32:52,637 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 19:32:52,637 INFO L933 BasicCegarLoop]: 1186 mSDtfsCounter, 10527 mSDsluCounter, 4092 mSDsCounter, 0 mSdLazyCounter, 3983 mSolverCounterSat, 1095 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10527 SdHoareTripleChecker+Valid, 5278 SdHoareTripleChecker+Invalid, 5078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1095 IncrementalHoareTripleChecker+Valid, 3983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:32:52,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10527 Valid, 5278 Invalid, 5078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1095 Valid, 3983 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-06 19:32:52,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3667 states. [2021-12-06 19:32:53,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3667 to 1634. [2021-12-06 19:32:53,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1605 states have (on average 1.3327102803738318) internal successors, (2139), 1633 states have internal predecessors, (2139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:53,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2139 transitions. [2021-12-06 19:32:53,245 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2139 transitions. Word has length 116 [2021-12-06 19:32:53,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:32:53,246 INFO L470 AbstractCegarLoop]: Abstraction has 1634 states and 2139 transitions. [2021-12-06 19:32:53,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:53,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2139 transitions. [2021-12-06 19:32:53,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:32:53,247 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:32:53,247 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] [2021-12-06 19:32:53,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-12-06 19:32:53,247 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:32:53,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:32:53,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1860269023, now seen corresponding path program 1 times [2021-12-06 19:32:53,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:32:53,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613571916] [2021-12-06 19:32:53,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:32:53,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:32:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:32:53,315 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 19:32:53,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:32:53,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613571916] [2021-12-06 19:32:53,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613571916] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:32:53,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:32:53,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:32:53,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446778330] [2021-12-06 19:32:53,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:32:53,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:32:53,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:32:53,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:32:53,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:32:53,316 INFO L87 Difference]: Start difference. First operand 1634 states and 2139 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:56,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:32:56,124 INFO L93 Difference]: Finished difference Result 2875 states and 3870 transitions. [2021-12-06 19:32:56,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:32:56,124 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:32:56,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:32:56,126 INFO L225 Difference]: With dead ends: 2875 [2021-12-06 19:32:56,126 INFO L226 Difference]: Without dead ends: 2701 [2021-12-06 19:32:56,126 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 19:32:56,127 INFO L933 BasicCegarLoop]: 1163 mSDtfsCounter, 4820 mSDsluCounter, 3631 mSDsCounter, 0 mSdLazyCounter, 3554 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4820 SdHoareTripleChecker+Valid, 4794 SdHoareTripleChecker+Invalid, 3711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 3554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:32:56,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4820 Valid, 4794 Invalid, 3711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 3554 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:32:56,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2021-12-06 19:32:56,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 1630. [2021-12-06 19:32:56,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1630 states, 1601 states have (on average 1.3329169269206746) internal successors, (2134), 1629 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:56,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 2134 transitions. [2021-12-06 19:32:56,718 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 2134 transitions. Word has length 116 [2021-12-06 19:32:56,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:32:56,718 INFO L470 AbstractCegarLoop]: Abstraction has 1630 states and 2134 transitions. [2021-12-06 19:32:56,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:56,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 2134 transitions. [2021-12-06 19:32:56,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:32:56,719 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:32:56,720 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] [2021-12-06 19:32:56,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-12-06 19:32:56,720 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:32:56,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:32:56,720 INFO L85 PathProgramCache]: Analyzing trace with hash 28669883, now seen corresponding path program 1 times [2021-12-06 19:32:56,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:32:56,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094871377] [2021-12-06 19:32:56,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:32:56,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:32:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:32:56,792 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 19:32:56,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:32:56,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094871377] [2021-12-06 19:32:56,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094871377] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:32:56,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:32:56,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:32:56,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974157390] [2021-12-06 19:32:56,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:32:56,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:32:56,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:32:56,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:32:56,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:32:56,793 INFO L87 Difference]: Start difference. First operand 1630 states and 2134 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:32:59,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:32:59,722 INFO L93 Difference]: Finished difference Result 2873 states and 3867 transitions. [2021-12-06 19:32:59,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:32:59,723 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:32:59,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:32:59,724 INFO L225 Difference]: With dead ends: 2873 [2021-12-06 19:32:59,724 INFO L226 Difference]: Without dead ends: 2701 [2021-12-06 19:32:59,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-06 19:32:59,725 INFO L933 BasicCegarLoop]: 1032 mSDtfsCounter, 6455 mSDsluCounter, 4336 mSDsCounter, 0 mSdLazyCounter, 3882 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6455 SdHoareTripleChecker+Valid, 5368 SdHoareTripleChecker+Invalid, 4060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 3882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:32:59,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6455 Valid, 5368 Invalid, 4060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 3882 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:32:59,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2021-12-06 19:33:00,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 1630. [2021-12-06 19:33:00,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1630 states, 1601 states have (on average 1.3322923173016865) internal successors, (2133), 1629 states have internal predecessors, (2133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:00,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 2133 transitions. [2021-12-06 19:33:00,320 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 2133 transitions. Word has length 116 [2021-12-06 19:33:00,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:33:00,320 INFO L470 AbstractCegarLoop]: Abstraction has 1630 states and 2133 transitions. [2021-12-06 19:33:00,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:00,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 2133 transitions. [2021-12-06 19:33:00,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:33:00,321 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:33:00,322 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] [2021-12-06 19:33:00,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-12-06 19:33:00,322 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:33:00,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:33:00,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1164272560, now seen corresponding path program 1 times [2021-12-06 19:33:00,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:33:00,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42369260] [2021-12-06 19:33:00,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:33:00,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:33:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:33:00,389 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 19:33:00,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:33:00,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42369260] [2021-12-06 19:33:00,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42369260] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:33:00,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:33:00,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:33:00,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93833271] [2021-12-06 19:33:00,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:33:00,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:33:00,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:33:00,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:33:00,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:33:00,390 INFO L87 Difference]: Start difference. First operand 1630 states and 2133 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:03,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:33:03,020 INFO L93 Difference]: Finished difference Result 2773 states and 3713 transitions. [2021-12-06 19:33:03,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:33:03,021 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:33:03,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:33:03,023 INFO L225 Difference]: With dead ends: 2773 [2021-12-06 19:33:03,023 INFO L226 Difference]: Without dead ends: 2606 [2021-12-06 19:33:03,023 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 19:33:03,023 INFO L933 BasicCegarLoop]: 971 mSDtfsCounter, 3593 mSDsluCounter, 3017 mSDsCounter, 0 mSdLazyCounter, 3118 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3593 SdHoareTripleChecker+Valid, 3988 SdHoareTripleChecker+Invalid, 3329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 3118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:33:03,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3593 Valid, 3988 Invalid, 3329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 3118 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:33:03,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2021-12-06 19:33:03,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 1630. [2021-12-06 19:33:03,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1630 states, 1601 states have (on average 1.3316677076826984) internal successors, (2132), 1629 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:03,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 2132 transitions. [2021-12-06 19:33:03,626 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 2132 transitions. Word has length 116 [2021-12-06 19:33:03,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:33:03,627 INFO L470 AbstractCegarLoop]: Abstraction has 1630 states and 2132 transitions. [2021-12-06 19:33:03,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:03,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 2132 transitions. [2021-12-06 19:33:03,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:33:03,628 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:33:03,628 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] [2021-12-06 19:33:03,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-12-06 19:33:03,628 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:33:03,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:33:03,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1234770420, now seen corresponding path program 1 times [2021-12-06 19:33:03,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:33:03,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686092035] [2021-12-06 19:33:03,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:33:03,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:33:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:33:03,694 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 19:33:03,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:33:03,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686092035] [2021-12-06 19:33:03,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686092035] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:33:03,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:33:03,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:33:03,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224574803] [2021-12-06 19:33:03,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:33:03,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:33:03,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:33:03,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:33:03,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:33:03,695 INFO L87 Difference]: Start difference. First operand 1630 states and 2132 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:06,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:33:06,422 INFO L93 Difference]: Finished difference Result 2777 states and 3716 transitions. [2021-12-06 19:33:06,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:33:06,422 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:33:06,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:33:06,424 INFO L225 Difference]: With dead ends: 2777 [2021-12-06 19:33:06,424 INFO L226 Difference]: Without dead ends: 2606 [2021-12-06 19:33:06,424 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 19:33:06,425 INFO L933 BasicCegarLoop]: 1044 mSDtfsCounter, 3463 mSDsluCounter, 3149 mSDsCounter, 0 mSdLazyCounter, 3290 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3463 SdHoareTripleChecker+Valid, 4193 SdHoareTripleChecker+Invalid, 3500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 3290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:33:06,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3463 Valid, 4193 Invalid, 3500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 3290 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:33:06,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2021-12-06 19:33:07,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 1626. [2021-12-06 19:33:07,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1597 states have (on average 1.3318722604884157) internal successors, (2127), 1625 states have internal predecessors, (2127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:07,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2127 transitions. [2021-12-06 19:33:07,025 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2127 transitions. Word has length 116 [2021-12-06 19:33:07,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:33:07,025 INFO L470 AbstractCegarLoop]: Abstraction has 1626 states and 2127 transitions. [2021-12-06 19:33:07,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:07,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2127 transitions. [2021-12-06 19:33:07,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:33:07,026 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:33:07,026 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] [2021-12-06 19:33:07,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-12-06 19:33:07,026 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:33:07,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:33:07,027 INFO L85 PathProgramCache]: Analyzing trace with hash -2134268453, now seen corresponding path program 1 times [2021-12-06 19:33:07,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:33:07,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636831177] [2021-12-06 19:33:07,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:33:07,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:33:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:33:07,091 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 19:33:07,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:33:07,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636831177] [2021-12-06 19:33:07,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636831177] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:33:07,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:33:07,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:33:07,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850480627] [2021-12-06 19:33:07,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:33:07,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:33:07,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:33:07,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:33:07,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:33:07,092 INFO L87 Difference]: Start difference. First operand 1626 states and 2127 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:09,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:33:09,865 INFO L93 Difference]: Finished difference Result 2880 states and 3871 transitions. [2021-12-06 19:33:09,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:33:09,866 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:33:09,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:33:09,867 INFO L225 Difference]: With dead ends: 2880 [2021-12-06 19:33:09,867 INFO L226 Difference]: Without dead ends: 2697 [2021-12-06 19:33:09,868 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 19:33:09,868 INFO L933 BasicCegarLoop]: 1176 mSDtfsCounter, 3266 mSDsluCounter, 3646 mSDsCounter, 0 mSdLazyCounter, 3556 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3266 SdHoareTripleChecker+Valid, 4822 SdHoareTripleChecker+Invalid, 3662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 3556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:33:09,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3266 Valid, 4822 Invalid, 3662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 3556 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:33:09,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2021-12-06 19:33:10,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 1622. [2021-12-06 19:33:10,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 1593 states have (on average 1.3320778405524167) internal successors, (2122), 1621 states have internal predecessors, (2122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:10,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 2122 transitions. [2021-12-06 19:33:10,466 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 2122 transitions. Word has length 116 [2021-12-06 19:33:10,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:33:10,466 INFO L470 AbstractCegarLoop]: Abstraction has 1622 states and 2122 transitions. [2021-12-06 19:33:10,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:10,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 2122 transitions. [2021-12-06 19:33:10,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:33:10,467 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:33:10,467 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, 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 19:33:10,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-12-06 19:33:10,468 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:33:10,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:33:10,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1983728155, now seen corresponding path program 1 times [2021-12-06 19:33:10,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:33:10,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791033050] [2021-12-06 19:33:10,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:33:10,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:33:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:33:10,540 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 19:33:10,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:33:10,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791033050] [2021-12-06 19:33:10,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791033050] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:33:10,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:33:10,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:33:10,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988807526] [2021-12-06 19:33:10,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:33:10,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:33:10,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:33:10,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:33:10,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:33:10,541 INFO L87 Difference]: Start difference. First operand 1622 states and 2122 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:13,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:33:13,287 INFO L93 Difference]: Finished difference Result 2768 states and 3705 transitions. [2021-12-06 19:33:13,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:33:13,287 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:33:13,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:33:13,289 INFO L225 Difference]: With dead ends: 2768 [2021-12-06 19:33:13,289 INFO L226 Difference]: Without dead ends: 2602 [2021-12-06 19:33:13,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:33:13,290 INFO L933 BasicCegarLoop]: 988 mSDtfsCounter, 6551 mSDsluCounter, 3068 mSDsCounter, 0 mSdLazyCounter, 3134 mSolverCounterSat, 423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6551 SdHoareTripleChecker+Valid, 4056 SdHoareTripleChecker+Invalid, 3557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 3134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:33:13,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6551 Valid, 4056 Invalid, 3557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 3134 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:33:13,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2021-12-06 19:33:13,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 1622. [2021-12-06 19:33:13,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 1593 states have (on average 1.3314500941619585) internal successors, (2121), 1621 states have internal predecessors, (2121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:13,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 2121 transitions. [2021-12-06 19:33:13,893 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 2121 transitions. Word has length 116 [2021-12-06 19:33:13,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:33:13,893 INFO L470 AbstractCegarLoop]: Abstraction has 1622 states and 2121 transitions. [2021-12-06 19:33:13,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:13,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 2121 transitions. [2021-12-06 19:33:13,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:33:13,894 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:33:13,894 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] [2021-12-06 19:33:13,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-12-06 19:33:13,894 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:33:13,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:33:13,895 INFO L85 PathProgramCache]: Analyzing trace with hash 742463943, now seen corresponding path program 1 times [2021-12-06 19:33:13,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:33:13,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036389489] [2021-12-06 19:33:13,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:33:13,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:33:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:33:13,963 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 19:33:13,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:33:13,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036389489] [2021-12-06 19:33:13,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036389489] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:33:13,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:33:13,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:33:13,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537765506] [2021-12-06 19:33:13,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:33:13,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:33:13,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:33:13,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:33:13,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:33:13,964 INFO L87 Difference]: Start difference. First operand 1622 states and 2121 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:16,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:33:16,839 INFO L93 Difference]: Finished difference Result 2770 states and 3706 transitions. [2021-12-06 19:33:16,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:33:16,840 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:33:16,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:33:16,841 INFO L225 Difference]: With dead ends: 2770 [2021-12-06 19:33:16,841 INFO L226 Difference]: Without dead ends: 2602 [2021-12-06 19:33:16,842 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 19:33:16,842 INFO L933 BasicCegarLoop]: 1056 mSDtfsCounter, 4922 mSDsluCounter, 3192 mSDsCounter, 0 mSdLazyCounter, 3315 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4922 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 3631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 3315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:33:16,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4922 Valid, 4248 Invalid, 3631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 3315 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:33:16,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2021-12-06 19:33:17,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 1618. [2021-12-06 19:33:17,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1618 states, 1589 states have (on average 1.3316551290119572) internal successors, (2116), 1617 states have internal predecessors, (2116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:17,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1618 states to 1618 states and 2116 transitions. [2021-12-06 19:33:17,452 INFO L78 Accepts]: Start accepts. Automaton has 1618 states and 2116 transitions. Word has length 116 [2021-12-06 19:33:17,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:33:17,453 INFO L470 AbstractCegarLoop]: Abstraction has 1618 states and 2116 transitions. [2021-12-06 19:33:17,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:17,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1618 states and 2116 transitions. [2021-12-06 19:33:17,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:33:17,454 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:33:17,454 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] [2021-12-06 19:33:17,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-12-06 19:33:17,454 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:33:17,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:33:17,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1933301908, now seen corresponding path program 1 times [2021-12-06 19:33:17,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:33:17,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679645509] [2021-12-06 19:33:17,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:33:17,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:33:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:33:17,527 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 19:33:17,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:33:17,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679645509] [2021-12-06 19:33:17,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679645509] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:33:17,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:33:17,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:33:17,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773007392] [2021-12-06 19:33:17,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:33:17,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:33:17,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:33:17,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:33:17,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:33:17,528 INFO L87 Difference]: Start difference. First operand 1618 states and 2116 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:20,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:33:20,474 INFO L93 Difference]: Finished difference Result 2768 states and 3703 transitions. [2021-12-06 19:33:20,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:33:20,474 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:33:20,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:33:20,476 INFO L225 Difference]: With dead ends: 2768 [2021-12-06 19:33:20,476 INFO L226 Difference]: Without dead ends: 2602 [2021-12-06 19:33:20,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:33:20,477 INFO L933 BasicCegarLoop]: 989 mSDtfsCounter, 6537 mSDsluCounter, 3071 mSDsCounter, 0 mSdLazyCounter, 3130 mSolverCounterSat, 423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6537 SdHoareTripleChecker+Valid, 4060 SdHoareTripleChecker+Invalid, 3553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 3130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:33:20,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6537 Valid, 4060 Invalid, 3553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 3130 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:33:20,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2021-12-06 19:33:21,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 1618. [2021-12-06 19:33:21,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1618 states, 1589 states have (on average 1.3310258023914412) internal successors, (2115), 1617 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:21,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1618 states to 1618 states and 2115 transitions. [2021-12-06 19:33:21,085 INFO L78 Accepts]: Start accepts. Automaton has 1618 states and 2115 transitions. Word has length 116 [2021-12-06 19:33:21,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:33:21,086 INFO L470 AbstractCegarLoop]: Abstraction has 1618 states and 2115 transitions. [2021-12-06 19:33:21,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:21,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1618 states and 2115 transitions. [2021-12-06 19:33:21,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:33:21,087 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:33:21,087 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] [2021-12-06 19:33:21,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-12-06 19:33:21,087 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:33:21,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:33:21,087 INFO L85 PathProgramCache]: Analyzing trace with hash 698494103, now seen corresponding path program 1 times [2021-12-06 19:33:21,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:33:21,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244347622] [2021-12-06 19:33:21,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:33:21,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:33:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:33:21,154 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 19:33:21,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:33:21,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244347622] [2021-12-06 19:33:21,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244347622] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:33:21,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:33:21,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:33:21,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535770741] [2021-12-06 19:33:21,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:33:21,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:33:21,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:33:21,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:33:21,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:33:21,155 INFO L87 Difference]: Start difference. First operand 1618 states and 2115 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:23,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:33:23,998 INFO L93 Difference]: Finished difference Result 2769 states and 3703 transitions. [2021-12-06 19:33:23,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:33:23,999 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:33:23,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:33:24,000 INFO L225 Difference]: With dead ends: 2769 [2021-12-06 19:33:24,001 INFO L226 Difference]: Without dead ends: 2602 [2021-12-06 19:33:24,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:33:24,001 INFO L933 BasicCegarLoop]: 1052 mSDtfsCounter, 6179 mSDsluCounter, 3261 mSDsCounter, 0 mSdLazyCounter, 3327 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6179 SdHoareTripleChecker+Valid, 4313 SdHoareTripleChecker+Invalid, 3746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 3327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:33:24,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6179 Valid, 4313 Invalid, 3746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 3327 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:33:24,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2021-12-06 19:33:24,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 1618. [2021-12-06 19:33:24,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1618 states, 1589 states have (on average 1.330396475770925) internal successors, (2114), 1617 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:24,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1618 states to 1618 states and 2114 transitions. [2021-12-06 19:33:24,612 INFO L78 Accepts]: Start accepts. Automaton has 1618 states and 2114 transitions. Word has length 116 [2021-12-06 19:33:24,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:33:24,612 INFO L470 AbstractCegarLoop]: Abstraction has 1618 states and 2114 transitions. [2021-12-06 19:33:24,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:24,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1618 states and 2114 transitions. [2021-12-06 19:33:24,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:33:24,613 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:33:24,614 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] [2021-12-06 19:33:24,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-12-06 19:33:24,614 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:33:24,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:33:24,614 INFO L85 PathProgramCache]: Analyzing trace with hash -453762918, now seen corresponding path program 1 times [2021-12-06 19:33:24,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:33:24,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663556906] [2021-12-06 19:33:24,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:33:24,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:33:24,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:33:24,719 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 19:33:24,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:33:24,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663556906] [2021-12-06 19:33:24,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663556906] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:33:24,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:33:24,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:33:24,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924784040] [2021-12-06 19:33:24,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:33:24,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:33:24,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:33:24,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:33:24,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:33:24,720 INFO L87 Difference]: Start difference. First operand 1618 states and 2114 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:30,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:33:30,073 INFO L93 Difference]: Finished difference Result 3563 states and 4879 transitions. [2021-12-06 19:33:30,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:33:30,073 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:33:30,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:33:30,076 INFO L225 Difference]: With dead ends: 3563 [2021-12-06 19:33:30,076 INFO L226 Difference]: Without dead ends: 3397 [2021-12-06 19:33:30,076 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 19:33:30,076 INFO L933 BasicCegarLoop]: 1050 mSDtfsCounter, 10284 mSDsluCounter, 4090 mSDsCounter, 0 mSdLazyCounter, 4223 mSolverCounterSat, 1506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10284 SdHoareTripleChecker+Valid, 5140 SdHoareTripleChecker+Invalid, 5729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1506 IncrementalHoareTripleChecker+Valid, 4223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:33:30,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10284 Valid, 5140 Invalid, 5729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1506 Valid, 4223 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 19:33:30,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3397 states. [2021-12-06 19:33:30,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3397 to 1622. [2021-12-06 19:33:30,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 1593 states have (on average 1.329566854990584) internal successors, (2118), 1621 states have internal predecessors, (2118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:30,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 2118 transitions. [2021-12-06 19:33:30,701 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 2118 transitions. Word has length 116 [2021-12-06 19:33:30,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:33:30,702 INFO L470 AbstractCegarLoop]: Abstraction has 1622 states and 2118 transitions. [2021-12-06 19:33:30,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:30,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 2118 transitions. [2021-12-06 19:33:30,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:33:30,703 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:33:30,703 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] [2021-12-06 19:33:30,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-12-06 19:33:30,703 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:33:30,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:33:30,703 INFO L85 PathProgramCache]: Analyzing trace with hash -348875794, now seen corresponding path program 1 times [2021-12-06 19:33:30,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:33:30,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283823610] [2021-12-06 19:33:30,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:33:30,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:33:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:33:30,769 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 19:33:30,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:33:30,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283823610] [2021-12-06 19:33:30,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283823610] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:33:30,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:33:30,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:33:30,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362733101] [2021-12-06 19:33:30,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:33:30,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:33:30,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:33:30,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:33:30,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:33:30,770 INFO L87 Difference]: Start difference. First operand 1622 states and 2118 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:33,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:33:33,595 INFO L93 Difference]: Finished difference Result 2875 states and 3860 transitions. [2021-12-06 19:33:33,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:33:33,595 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:33:33,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:33:33,597 INFO L225 Difference]: With dead ends: 2875 [2021-12-06 19:33:33,597 INFO L226 Difference]: Without dead ends: 2697 [2021-12-06 19:33:33,598 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 19:33:33,598 INFO L933 BasicCegarLoop]: 1185 mSDtfsCounter, 4730 mSDsluCounter, 3687 mSDsCounter, 0 mSdLazyCounter, 3555 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4730 SdHoareTripleChecker+Valid, 4872 SdHoareTripleChecker+Invalid, 3713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 3555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:33:33,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4730 Valid, 4872 Invalid, 3713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 3555 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:33:33,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2021-12-06 19:33:34,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 1618. [2021-12-06 19:33:34,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1618 states, 1589 states have (on average 1.329767149150409) internal successors, (2113), 1617 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:34,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1618 states to 1618 states and 2113 transitions. [2021-12-06 19:33:34,216 INFO L78 Accepts]: Start accepts. Automaton has 1618 states and 2113 transitions. Word has length 116 [2021-12-06 19:33:34,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:33:34,217 INFO L470 AbstractCegarLoop]: Abstraction has 1618 states and 2113 transitions. [2021-12-06 19:33:34,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:34,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1618 states and 2113 transitions. [2021-12-06 19:33:34,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:33:34,218 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:33:34,218 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] [2021-12-06 19:33:34,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-12-06 19:33:34,218 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:33:34,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:33:34,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1842448692, now seen corresponding path program 1 times [2021-12-06 19:33:34,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:33:34,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942132094] [2021-12-06 19:33:34,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:33:34,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:33:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:33:34,286 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 19:33:34,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:33:34,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942132094] [2021-12-06 19:33:34,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942132094] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:33:34,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:33:34,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:33:34,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491564274] [2021-12-06 19:33:34,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:33:34,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:33:34,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:33:34,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:33:34,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:33:34,287 INFO L87 Difference]: Start difference. First operand 1618 states and 2113 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:37,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:33:37,238 INFO L93 Difference]: Finished difference Result 2764 states and 3695 transitions. [2021-12-06 19:33:37,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:33:37,238 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:33:37,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:33:37,240 INFO L225 Difference]: With dead ends: 2764 [2021-12-06 19:33:37,240 INFO L226 Difference]: Without dead ends: 2598 [2021-12-06 19:33:37,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:33:37,241 INFO L933 BasicCegarLoop]: 998 mSDtfsCounter, 6484 mSDsluCounter, 3098 mSDsCounter, 0 mSdLazyCounter, 3133 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6484 SdHoareTripleChecker+Valid, 4096 SdHoareTripleChecker+Invalid, 3553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 3133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:33:37,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6484 Valid, 4096 Invalid, 3553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 3133 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:33:37,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2021-12-06 19:33:37,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 1618. [2021-12-06 19:33:37,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1618 states, 1589 states have (on average 1.329137822529893) internal successors, (2112), 1617 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:37,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1618 states to 1618 states and 2112 transitions. [2021-12-06 19:33:37,861 INFO L78 Accepts]: Start accepts. Automaton has 1618 states and 2112 transitions. Word has length 116 [2021-12-06 19:33:37,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:33:37,861 INFO L470 AbstractCegarLoop]: Abstraction has 1618 states and 2112 transitions. [2021-12-06 19:33:37,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:37,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1618 states and 2112 transitions. [2021-12-06 19:33:37,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:33:37,862 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:33:37,862 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] [2021-12-06 19:33:37,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-12-06 19:33:37,863 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:33:37,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:33:37,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1346269908, now seen corresponding path program 1 times [2021-12-06 19:33:37,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:33:37,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253364107] [2021-12-06 19:33:37,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:33:37,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:33:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:33:37,931 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 19:33:37,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:33:37,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253364107] [2021-12-06 19:33:37,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253364107] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:33:37,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:33:37,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:33:37,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692812667] [2021-12-06 19:33:37,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:33:37,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:33:37,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:33:37,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:33:37,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:33:37,932 INFO L87 Difference]: Start difference. First operand 1618 states and 2112 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:40,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:33:40,738 INFO L93 Difference]: Finished difference Result 2603 states and 3448 transitions. [2021-12-06 19:33:40,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:33:40,739 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:33:40,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:33:40,741 INFO L225 Difference]: With dead ends: 2603 [2021-12-06 19:33:40,741 INFO L226 Difference]: Without dead ends: 2598 [2021-12-06 19:33:40,741 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 19:33:40,741 INFO L933 BasicCegarLoop]: 1070 mSDtfsCounter, 4875 mSDsluCounter, 3229 mSDsCounter, 0 mSdLazyCounter, 3305 mSolverCounterSat, 313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4875 SdHoareTripleChecker+Valid, 4299 SdHoareTripleChecker+Invalid, 3618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 3305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:33:40,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4875 Valid, 4299 Invalid, 3618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [313 Valid, 3305 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:33:40,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2021-12-06 19:33:41,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 1610. [2021-12-06 19:33:41,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1581 states have (on average 1.3295382669196711) internal successors, (2102), 1609 states have internal predecessors, (2102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:41,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2102 transitions. [2021-12-06 19:33:41,362 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2102 transitions. Word has length 116 [2021-12-06 19:33:41,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:33:41,362 INFO L470 AbstractCegarLoop]: Abstraction has 1610 states and 2102 transitions. [2021-12-06 19:33:41,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:41,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2102 transitions. [2021-12-06 19:33:41,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:33:41,363 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:33:41,364 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] [2021-12-06 19:33:41,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-12-06 19:33:41,364 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:33:41,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:33:41,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1868191477, now seen corresponding path program 1 times [2021-12-06 19:33:41,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:33:41,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712794952] [2021-12-06 19:33:41,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:33:41,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:33:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:33:41,434 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 19:33:41,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:33:41,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712794952] [2021-12-06 19:33:41,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712794952] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:33:41,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:33:41,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:33:41,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090245991] [2021-12-06 19:33:41,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:33:41,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:33:41,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:33:41,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:33:41,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:33:41,435 INFO L87 Difference]: Start difference. First operand 1610 states and 2102 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:44,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:33:44,362 INFO L93 Difference]: Finished difference Result 2603 states and 3446 transitions. [2021-12-06 19:33:44,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:33:44,363 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:33:44,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:33:44,364 INFO L225 Difference]: With dead ends: 2603 [2021-12-06 19:33:44,364 INFO L226 Difference]: Without dead ends: 2598 [2021-12-06 19:33:44,365 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 19:33:44,365 INFO L933 BasicCegarLoop]: 1073 mSDtfsCounter, 4864 mSDsluCounter, 3238 mSDsCounter, 0 mSdLazyCounter, 3305 mSolverCounterSat, 313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4864 SdHoareTripleChecker+Valid, 4311 SdHoareTripleChecker+Invalid, 3618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 3305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:33:44,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4864 Valid, 4311 Invalid, 3618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [313 Valid, 3305 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:33:44,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2021-12-06 19:33:44,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 1602. [2021-12-06 19:33:44,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1602 states, 1573 states have (on average 1.329942784488239) internal successors, (2092), 1601 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:44,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1602 states to 1602 states and 2092 transitions. [2021-12-06 19:33:44,983 INFO L78 Accepts]: Start accepts. Automaton has 1602 states and 2092 transitions. Word has length 116 [2021-12-06 19:33:44,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:33:44,983 INFO L470 AbstractCegarLoop]: Abstraction has 1602 states and 2092 transitions. [2021-12-06 19:33:44,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:44,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1602 states and 2092 transitions. [2021-12-06 19:33:44,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:33:44,984 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:33:44,984 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] [2021-12-06 19:33:44,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-12-06 19:33:44,985 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:33:44,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:33:44,985 INFO L85 PathProgramCache]: Analyzing trace with hash 968693444, now seen corresponding path program 1 times [2021-12-06 19:33:44,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:33:44,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552661229] [2021-12-06 19:33:44,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:33:44,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:33:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:33:45,054 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 19:33:45,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:33:45,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552661229] [2021-12-06 19:33:45,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552661229] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:33:45,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:33:45,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:33:45,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069962903] [2021-12-06 19:33:45,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:33:45,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:33:45,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:33:45,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:33:45,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:33:45,055 INFO L87 Difference]: Start difference. First operand 1602 states and 2092 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:47,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:33:47,871 INFO L93 Difference]: Finished difference Result 2690 states and 3582 transitions. [2021-12-06 19:33:47,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:33:47,872 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:33:47,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:33:47,873 INFO L225 Difference]: With dead ends: 2690 [2021-12-06 19:33:47,873 INFO L226 Difference]: Without dead ends: 2673 [2021-12-06 19:33:47,874 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 19:33:47,874 INFO L933 BasicCegarLoop]: 1197 mSDtfsCounter, 5372 mSDsluCounter, 3713 mSDsCounter, 0 mSdLazyCounter, 3554 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5372 SdHoareTripleChecker+Valid, 4910 SdHoareTripleChecker+Invalid, 3746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 3554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:33:47,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5372 Valid, 4910 Invalid, 3746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 3554 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:33:47,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2673 states. [2021-12-06 19:33:48,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2673 to 1594. [2021-12-06 19:33:48,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1594 states, 1565 states have (on average 1.3303514376996806) internal successors, (2082), 1593 states have internal predecessors, (2082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:48,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1594 states to 1594 states and 2082 transitions. [2021-12-06 19:33:48,494 INFO L78 Accepts]: Start accepts. Automaton has 1594 states and 2082 transitions. Word has length 116 [2021-12-06 19:33:48,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:33:48,494 INFO L470 AbstractCegarLoop]: Abstraction has 1594 states and 2082 transitions. [2021-12-06 19:33:48,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:48,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1594 states and 2082 transitions. [2021-12-06 19:33:48,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:33:48,495 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:33:48,495 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] [2021-12-06 19:33:48,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-12-06 19:33:48,495 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:33:48,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:33:48,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1143294754, now seen corresponding path program 1 times [2021-12-06 19:33:48,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:33:48,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012557724] [2021-12-06 19:33:48,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:33:48,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:33:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:33:48,561 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 19:33:48,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:33:48,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012557724] [2021-12-06 19:33:48,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012557724] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:33:48,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:33:48,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:33:48,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37986415] [2021-12-06 19:33:48,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:33:48,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:33:48,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:33:48,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:33:48,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:33:48,563 INFO L87 Difference]: Start difference. First operand 1594 states and 2082 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:51,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:33:51,324 INFO L93 Difference]: Finished difference Result 2756 states and 3680 transitions. [2021-12-06 19:33:51,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:33:51,325 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:33:51,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:33:51,326 INFO L225 Difference]: With dead ends: 2756 [2021-12-06 19:33:51,327 INFO L226 Difference]: Without dead ends: 2590 [2021-12-06 19:33:51,327 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 19:33:51,327 INFO L933 BasicCegarLoop]: 1083 mSDtfsCounter, 3373 mSDsluCounter, 3275 mSDsCounter, 0 mSdLazyCounter, 3332 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3373 SdHoareTripleChecker+Valid, 4358 SdHoareTripleChecker+Invalid, 3539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 3332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:33:51,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3373 Valid, 4358 Invalid, 3539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 3332 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:33:51,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2590 states. [2021-12-06 19:33:51,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2590 to 1586. [2021-12-06 19:33:51,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1557 states have (on average 1.3307642903018626) internal successors, (2072), 1585 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:51,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2072 transitions. [2021-12-06 19:33:51,945 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2072 transitions. Word has length 116 [2021-12-06 19:33:51,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:33:51,945 INFO L470 AbstractCegarLoop]: Abstraction has 1586 states and 2072 transitions. [2021-12-06 19:33:51,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:51,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2072 transitions. [2021-12-06 19:33:51,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:33:51,946 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:33:51,946 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] [2021-12-06 19:33:51,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-12-06 19:33:51,946 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:33:51,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:33:51,946 INFO L85 PathProgramCache]: Analyzing trace with hash -956364354, now seen corresponding path program 1 times [2021-12-06 19:33:51,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:33:51,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132105137] [2021-12-06 19:33:51,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:33:51,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:33:51,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:33:52,016 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 19:33:52,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:33:52,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132105137] [2021-12-06 19:33:52,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132105137] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:33:52,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:33:52,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:33:52,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773998662] [2021-12-06 19:33:52,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:33:52,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:33:52,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:33:52,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:33:52,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:33:52,017 INFO L87 Difference]: Start difference. First operand 1586 states and 2072 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:55,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:33:55,018 INFO L93 Difference]: Finished difference Result 2758 states and 3680 transitions. [2021-12-06 19:33:55,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:33:55,018 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:33:55,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:33:55,020 INFO L225 Difference]: With dead ends: 2758 [2021-12-06 19:33:55,020 INFO L226 Difference]: Without dead ends: 2590 [2021-12-06 19:33:55,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:33:55,020 INFO L933 BasicCegarLoop]: 1016 mSDtfsCounter, 6388 mSDsluCounter, 3152 mSDsCounter, 0 mSdLazyCounter, 3145 mSolverCounterSat, 417 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6388 SdHoareTripleChecker+Valid, 4168 SdHoareTripleChecker+Invalid, 3562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 3145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:33:55,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6388 Valid, 4168 Invalid, 3562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 3145 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:33:55,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2590 states. [2021-12-06 19:33:55,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2590 to 1586. [2021-12-06 19:33:55,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1557 states have (on average 1.329479768786127) internal successors, (2070), 1585 states have internal predecessors, (2070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:55,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2070 transitions. [2021-12-06 19:33:55,641 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2070 transitions. Word has length 116 [2021-12-06 19:33:55,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:33:55,641 INFO L470 AbstractCegarLoop]: Abstraction has 1586 states and 2070 transitions. [2021-12-06 19:33:55,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:55,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2070 transitions. [2021-12-06 19:33:55,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:33:55,642 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:33:55,642 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] [2021-12-06 19:33:55,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-12-06 19:33:55,642 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:33:55,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:33:55,642 INFO L85 PathProgramCache]: Analyzing trace with hash 334123117, now seen corresponding path program 1 times [2021-12-06 19:33:55,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:33:55,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878349284] [2021-12-06 19:33:55,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:33:55,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:33:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:33:55,708 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 19:33:55,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:33:55,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878349284] [2021-12-06 19:33:55,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878349284] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:33:55,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:33:55,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:33:55,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290933525] [2021-12-06 19:33:55,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:33:55,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:33:55,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:33:55,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:33:55,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:33:55,709 INFO L87 Difference]: Start difference. First operand 1586 states and 2070 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:58,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:33:58,611 INFO L93 Difference]: Finished difference Result 2847 states and 3820 transitions. [2021-12-06 19:33:58,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:33:58,612 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:33:58,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:33:58,614 INFO L225 Difference]: With dead ends: 2847 [2021-12-06 19:33:58,614 INFO L226 Difference]: Without dead ends: 2665 [2021-12-06 19:33:58,614 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 19:33:58,614 INFO L933 BasicCegarLoop]: 1202 mSDtfsCounter, 6111 mSDsluCounter, 3748 mSDsCounter, 0 mSdLazyCounter, 3568 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6111 SdHoareTripleChecker+Valid, 4950 SdHoareTripleChecker+Invalid, 3777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 3568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:33:58,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6111 Valid, 4950 Invalid, 3777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 3568 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:33:58,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2021-12-06 19:33:59,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 1578. [2021-12-06 19:33:59,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1549 states have (on average 1.329890251775339) internal successors, (2060), 1577 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:59,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 2060 transitions. [2021-12-06 19:33:59,238 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 2060 transitions. Word has length 116 [2021-12-06 19:33:59,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:33:59,238 INFO L470 AbstractCegarLoop]: Abstraction has 1578 states and 2060 transitions. [2021-12-06 19:33:59,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:33:59,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 2060 transitions. [2021-12-06 19:33:59,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:33:59,239 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:33:59,239 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] [2021-12-06 19:33:59,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-12-06 19:33:59,239 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:33:59,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:33:59,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1438839613, now seen corresponding path program 1 times [2021-12-06 19:33:59,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:33:59,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759717217] [2021-12-06 19:33:59,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:33:59,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:33:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:33:59,304 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 19:33:59,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:33:59,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759717217] [2021-12-06 19:33:59,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759717217] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:33:59,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:33:59,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:33:59,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222848665] [2021-12-06 19:33:59,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:33:59,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:33:59,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:33:59,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:33:59,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:33:59,305 INFO L87 Difference]: Start difference. First operand 1578 states and 2060 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:02,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:34:02,251 INFO L93 Difference]: Finished difference Result 2752 states and 3670 transitions. [2021-12-06 19:34:02,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:34:02,251 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:34:02,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:34:02,253 INFO L225 Difference]: With dead ends: 2752 [2021-12-06 19:34:02,253 INFO L226 Difference]: Without dead ends: 2582 [2021-12-06 19:34:02,253 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 19:34:02,254 INFO L933 BasicCegarLoop]: 1091 mSDtfsCounter, 4785 mSDsluCounter, 3298 mSDsCounter, 0 mSdLazyCounter, 3333 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4785 SdHoareTripleChecker+Valid, 4389 SdHoareTripleChecker+Invalid, 3643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 3333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:34:02,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4785 Valid, 4389 Invalid, 3643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 3333 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:34:02,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2582 states. [2021-12-06 19:34:02,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2582 to 1570. [2021-12-06 19:34:02,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1541 states have (on average 1.3303049967553537) internal successors, (2050), 1569 states have internal predecessors, (2050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:02,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 2050 transitions. [2021-12-06 19:34:02,875 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 2050 transitions. Word has length 116 [2021-12-06 19:34:02,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:34:02,875 INFO L470 AbstractCegarLoop]: Abstraction has 1570 states and 2050 transitions. [2021-12-06 19:34:02,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:02,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 2050 transitions. [2021-12-06 19:34:02,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:34:02,876 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:34:02,876 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] [2021-12-06 19:34:02,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-12-06 19:34:02,876 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:34:02,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:34:02,876 INFO L85 PathProgramCache]: Analyzing trace with hash -771854940, now seen corresponding path program 1 times [2021-12-06 19:34:02,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:34:02,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634785982] [2021-12-06 19:34:02,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:34:02,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:34:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:02,940 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 19:34:02,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:34:02,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634785982] [2021-12-06 19:34:02,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634785982] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:34:02,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:34:02,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:34:02,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129024351] [2021-12-06 19:34:02,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:34:02,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:34:02,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:34:02,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:34:02,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:34:02,941 INFO L87 Difference]: Start difference. First operand 1570 states and 2050 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:05,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:34:05,849 INFO L93 Difference]: Finished difference Result 2847 states and 3818 transitions. [2021-12-06 19:34:05,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:34:05,850 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:34:05,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:34:05,851 INFO L225 Difference]: With dead ends: 2847 [2021-12-06 19:34:05,851 INFO L226 Difference]: Without dead ends: 2657 [2021-12-06 19:34:05,852 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 19:34:05,852 INFO L933 BasicCegarLoop]: 1215 mSDtfsCounter, 4619 mSDsluCounter, 3763 mSDsCounter, 0 mSdLazyCounter, 3578 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4619 SdHoareTripleChecker+Valid, 4978 SdHoareTripleChecker+Invalid, 3735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 3578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:34:05,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4619 Valid, 4978 Invalid, 3735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 3578 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:34:05,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2657 states. [2021-12-06 19:34:06,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2657 to 1562. [2021-12-06 19:34:06,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1533 states have (on average 1.3307240704500978) internal successors, (2040), 1561 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:06,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 2040 transitions. [2021-12-06 19:34:06,475 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 2040 transitions. Word has length 116 [2021-12-06 19:34:06,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:34:06,476 INFO L470 AbstractCegarLoop]: Abstraction has 1562 states and 2040 transitions. [2021-12-06 19:34:06,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:06,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 2040 transitions. [2021-12-06 19:34:06,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:34:06,477 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:34:06,477 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] [2021-12-06 19:34:06,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-12-06 19:34:06,477 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:34:06,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:34:06,477 INFO L85 PathProgramCache]: Analyzing trace with hash -840326086, now seen corresponding path program 1 times [2021-12-06 19:34:06,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:34:06,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592753734] [2021-12-06 19:34:06,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:34:06,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:34:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:06,547 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 19:34:06,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:34:06,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592753734] [2021-12-06 19:34:06,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592753734] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:34:06,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:34:06,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:34:06,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561171621] [2021-12-06 19:34:06,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:34:06,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:34:06,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:34:06,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:34:06,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:34:06,548 INFO L87 Difference]: Start difference. First operand 1562 states and 2040 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:09,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:34:09,472 INFO L93 Difference]: Finished difference Result 2847 states and 3816 transitions. [2021-12-06 19:34:09,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:34:09,472 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:34:09,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:34:09,474 INFO L225 Difference]: With dead ends: 2847 [2021-12-06 19:34:09,474 INFO L226 Difference]: Without dead ends: 2657 [2021-12-06 19:34:09,474 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 19:34:09,475 INFO L933 BasicCegarLoop]: 1228 mSDtfsCounter, 4578 mSDsluCounter, 3802 mSDsCounter, 0 mSdLazyCounter, 3598 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4578 SdHoareTripleChecker+Valid, 5030 SdHoareTripleChecker+Invalid, 3755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 3598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:34:09,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4578 Valid, 5030 Invalid, 3755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 3598 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:34:09,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2657 states. [2021-12-06 19:34:10,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2657 to 1554. [2021-12-06 19:34:10,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1525 states have (on average 1.3311475409836067) internal successors, (2030), 1553 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:10,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 2030 transitions. [2021-12-06 19:34:10,095 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 2030 transitions. Word has length 116 [2021-12-06 19:34:10,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:34:10,095 INFO L470 AbstractCegarLoop]: Abstraction has 1554 states and 2030 transitions. [2021-12-06 19:34:10,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:10,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 2030 transitions. [2021-12-06 19:34:10,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:34:10,096 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:34:10,096 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] [2021-12-06 19:34:10,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-12-06 19:34:10,096 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:34:10,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:34:10,096 INFO L85 PathProgramCache]: Analyzing trace with hash -581183163, now seen corresponding path program 1 times [2021-12-06 19:34:10,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:34:10,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450936263] [2021-12-06 19:34:10,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:34:10,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:34:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:10,162 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 19:34:10,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:34:10,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450936263] [2021-12-06 19:34:10,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450936263] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:34:10,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:34:10,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:34:10,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492706128] [2021-12-06 19:34:10,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:34:10,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:34:10,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:34:10,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:34:10,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:34:10,163 INFO L87 Difference]: Start difference. First operand 1554 states and 2030 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:12,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:34:12,898 INFO L93 Difference]: Finished difference Result 2732 states and 3644 transitions. [2021-12-06 19:34:12,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:34:12,898 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-06 19:34:12,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:34:12,900 INFO L225 Difference]: With dead ends: 2732 [2021-12-06 19:34:12,900 INFO L226 Difference]: Without dead ends: 2566 [2021-12-06 19:34:12,900 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 19:34:12,900 INFO L933 BasicCegarLoop]: 1048 mSDtfsCounter, 4825 mSDsluCounter, 3248 mSDsCounter, 0 mSdLazyCounter, 3201 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4825 SdHoareTripleChecker+Valid, 4296 SdHoareTripleChecker+Invalid, 3507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 3201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:34:12,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4825 Valid, 4296 Invalid, 3507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 3201 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:34:12,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2566 states. [2021-12-06 19:34:13,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2566 to 1554. [2021-12-06 19:34:13,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1525 states have (on average 1.3298360655737704) internal successors, (2028), 1553 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:13,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 2028 transitions. [2021-12-06 19:34:13,523 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 2028 transitions. Word has length 116 [2021-12-06 19:34:13,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:34:13,523 INFO L470 AbstractCegarLoop]: Abstraction has 1554 states and 2028 transitions. [2021-12-06 19:34:13,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:13,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 2028 transitions. [2021-12-06 19:34:13,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-06 19:34:13,524 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:34:13,524 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:34:13,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-12-06 19:34:13,524 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:34:13,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:34:13,524 INFO L85 PathProgramCache]: Analyzing trace with hash 159674476, now seen corresponding path program 1 times [2021-12-06 19:34:13,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:34:13,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099264397] [2021-12-06 19:34:13,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:34:13,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:34:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:13,771 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 19:34:13,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:34:13,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099264397] [2021-12-06 19:34:13,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099264397] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:34:13,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:34:13,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:34:13,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291833490] [2021-12-06 19:34:13,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:34:13,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:34:13,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:34:13,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:34:13,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:34:13,772 INFO L87 Difference]: Start difference. First operand 1554 states and 2028 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:15,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:34:15,891 INFO L93 Difference]: Finished difference Result 2443 states and 3314 transitions. [2021-12-06 19:34:15,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 19:34:15,891 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-06 19:34:15,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:34:15,893 INFO L225 Difference]: With dead ends: 2443 [2021-12-06 19:34:15,893 INFO L226 Difference]: Without dead ends: 2091 [2021-12-06 19:34:15,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-06 19:34:15,894 INFO L933 BasicCegarLoop]: 1474 mSDtfsCounter, 4488 mSDsluCounter, 8887 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4488 SdHoareTripleChecker+Valid, 10361 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:34:15,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4488 Valid, 10361 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:34:15,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2091 states. [2021-12-06 19:34:16,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2091 to 1368. [2021-12-06 19:34:16,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 1340 states have (on average 1.328358208955224) internal successors, (1780), 1367 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:16,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1780 transitions. [2021-12-06 19:34:16,467 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1780 transitions. Word has length 117 [2021-12-06 19:34:16,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:34:16,467 INFO L470 AbstractCegarLoop]: Abstraction has 1368 states and 1780 transitions. [2021-12-06 19:34:16,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:16,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1780 transitions. [2021-12-06 19:34:16,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-06 19:34:16,468 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:34:16,468 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] [2021-12-06 19:34:16,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-12-06 19:34:16,468 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:34:16,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:34:16,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1983625940, now seen corresponding path program 1 times [2021-12-06 19:34:16,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:34:16,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359108468] [2021-12-06 19:34:16,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:34:16,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:34:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:17,864 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 19:34:17,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:34:17,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359108468] [2021-12-06 19:34:17,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359108468] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:34:17,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:34:17,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2021-12-06 19:34:17,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450268420] [2021-12-06 19:34:17,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:34:17,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-12-06 19:34:17,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:34:17,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-12-06 19:34:17,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1363, Unknown=0, NotChecked=0, Total=1482 [2021-12-06 19:34:17,865 INFO L87 Difference]: Start difference. First operand 1368 states and 1780 transitions. Second operand has 39 states, 39 states have (on average 3.0) internal successors, (117), 39 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:34,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:34:34,241 INFO L93 Difference]: Finished difference Result 2807 states and 3715 transitions. [2021-12-06 19:34:34,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-12-06 19:34:34,242 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.0) internal successors, (117), 39 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-06 19:34:34,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:34:34,243 INFO L225 Difference]: With dead ends: 2807 [2021-12-06 19:34:34,243 INFO L226 Difference]: Without dead ends: 2637 [2021-12-06 19:34:34,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=837, Invalid=4419, Unknown=0, NotChecked=0, Total=5256 [2021-12-06 19:34:34,244 INFO L933 BasicCegarLoop]: 1932 mSDtfsCounter, 5709 mSDsluCounter, 36661 mSDsCounter, 0 mSdLazyCounter, 24330 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5709 SdHoareTripleChecker+Valid, 38593 SdHoareTripleChecker+Invalid, 24502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 24330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2021-12-06 19:34:34,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5709 Valid, 38593 Invalid, 24502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [172 Valid, 24330 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2021-12-06 19:34:34,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2021-12-06 19:34:34,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 1394. [2021-12-06 19:34:34,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1366 states have (on average 1.3265007320644218) internal successors, (1812), 1393 states have internal predecessors, (1812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:34,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1812 transitions. [2021-12-06 19:34:34,843 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1812 transitions. Word has length 117 [2021-12-06 19:34:34,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:34:34,843 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 1812 transitions. [2021-12-06 19:34:34,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.0) internal successors, (117), 39 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:34,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1812 transitions. [2021-12-06 19:34:34,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-06 19:34:34,844 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:34:34,844 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] [2021-12-06 19:34:34,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-12-06 19:34:34,845 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:34:34,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:34:34,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1062169606, now seen corresponding path program 1 times [2021-12-06 19:34:34,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:34:34,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31440377] [2021-12-06 19:34:34,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:34:34,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:34:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:36,339 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 19:34:36,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:34:36,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31440377] [2021-12-06 19:34:36,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31440377] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:34:36,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:34:36,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2021-12-06 19:34:36,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052258167] [2021-12-06 19:34:36,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:34:36,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-12-06 19:34:36,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:34:36,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-12-06 19:34:36,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1438, Unknown=0, NotChecked=0, Total=1560 [2021-12-06 19:34:36,341 INFO L87 Difference]: Start difference. First operand 1394 states and 1812 transitions. Second operand has 40 states, 40 states have (on average 2.925) internal successors, (117), 40 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:54,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:34:54,805 INFO L93 Difference]: Finished difference Result 3212 states and 4333 transitions. [2021-12-06 19:34:54,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-12-06 19:34:54,806 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.925) internal successors, (117), 40 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-06 19:34:54,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:34:54,808 INFO L225 Difference]: With dead ends: 3212 [2021-12-06 19:34:54,808 INFO L226 Difference]: Without dead ends: 3045 [2021-12-06 19:34:54,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 786 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=851, Invalid=4699, Unknown=0, NotChecked=0, Total=5550 [2021-12-06 19:34:54,808 INFO L933 BasicCegarLoop]: 2074 mSDtfsCounter, 6587 mSDsluCounter, 39413 mSDsCounter, 0 mSdLazyCounter, 25920 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6587 SdHoareTripleChecker+Valid, 41487 SdHoareTripleChecker+Invalid, 26108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 25920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:34:54,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6587 Valid, 41487 Invalid, 26108 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [188 Valid, 25920 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2021-12-06 19:34:54,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3045 states. [2021-12-06 19:34:55,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3045 to 1399. [2021-12-06 19:34:55,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1399 states, 1371 states have (on average 1.3267687819110139) internal successors, (1819), 1398 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:55,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1399 states to 1399 states and 1819 transitions. [2021-12-06 19:34:55,416 INFO L78 Accepts]: Start accepts. Automaton has 1399 states and 1819 transitions. Word has length 117 [2021-12-06 19:34:55,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:34:55,416 INFO L470 AbstractCegarLoop]: Abstraction has 1399 states and 1819 transitions. [2021-12-06 19:34:55,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.925) internal successors, (117), 40 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:55,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1399 states and 1819 transitions. [2021-12-06 19:34:55,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-06 19:34:55,417 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:34:55,418 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] [2021-12-06 19:34:55,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-12-06 19:34:55,418 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:34:55,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:34:55,418 INFO L85 PathProgramCache]: Analyzing trace with hash 530824208, now seen corresponding path program 1 times [2021-12-06 19:34:55,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:34:55,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672655713] [2021-12-06 19:34:55,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:34:55,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:34:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:55,585 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 19:34:55,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:34:55,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672655713] [2021-12-06 19:34:55,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672655713] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:34:55,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:34:55,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:34:55,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224738611] [2021-12-06 19:34:55,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:34:55,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 19:34:55,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:34:55,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 19:34:55,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:34:55,586 INFO L87 Difference]: Start difference. First operand 1399 states and 1819 transitions. Second operand has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:58,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:34:58,205 INFO L93 Difference]: Finished difference Result 2449 states and 3169 transitions. [2021-12-06 19:34:58,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:34:58,206 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-06 19:34:58,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:34:58,207 INFO L225 Difference]: With dead ends: 2449 [2021-12-06 19:34:58,207 INFO L226 Difference]: Without dead ends: 2025 [2021-12-06 19:34:58,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:34:58,208 INFO L933 BasicCegarLoop]: 1700 mSDtfsCounter, 4742 mSDsluCounter, 4683 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4742 SdHoareTripleChecker+Valid, 6383 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:34:58,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4742 Valid, 6383 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 19:34:58,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2025 states. [2021-12-06 19:34:58,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2025 to 1141. [2021-12-06 19:34:58,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 1119 states have (on average 1.3297587131367292) internal successors, (1488), 1140 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:58,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1488 transitions. [2021-12-06 19:34:58,740 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1488 transitions. Word has length 117 [2021-12-06 19:34:58,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:34:58,740 INFO L470 AbstractCegarLoop]: Abstraction has 1141 states and 1488 transitions. [2021-12-06 19:34:58,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:34:58,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1488 transitions. [2021-12-06 19:34:58,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-06 19:34:58,741 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:34:58,741 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] [2021-12-06 19:34:58,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-12-06 19:34:58,741 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:34:58,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:34:58,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1596743316, now seen corresponding path program 1 times [2021-12-06 19:34:58,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:34:58,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454223564] [2021-12-06 19:34:58,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:34:58,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:34:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:34:58,922 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 19:34:58,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:34:58,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454223564] [2021-12-06 19:34:58,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454223564] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:34:58,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:34:58,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:34:58,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024367636] [2021-12-06 19:34:58,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:34:58,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:34:58,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:34:58,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:34:58,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:34:58,924 INFO L87 Difference]: Start difference. First operand 1141 states and 1488 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:00,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:00,160 INFO L93 Difference]: Finished difference Result 1959 states and 2615 transitions. [2021-12-06 19:35:00,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 19:35:00,161 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-06 19:35:00,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:00,162 INFO L225 Difference]: With dead ends: 1959 [2021-12-06 19:35:00,162 INFO L226 Difference]: Without dead ends: 1401 [2021-12-06 19:35:00,162 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 19:35:00,162 INFO L933 BasicCegarLoop]: 973 mSDtfsCounter, 2185 mSDsluCounter, 5110 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2185 SdHoareTripleChecker+Valid, 6083 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:00,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2185 Valid, 6083 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:35:00,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2021-12-06 19:35:00,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 749. [2021-12-06 19:35:00,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 733 states have (on average 1.3328785811732606) internal successors, (977), 748 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:00,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 977 transitions. [2021-12-06 19:35:00,576 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 977 transitions. Word has length 117 [2021-12-06 19:35:00,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:00,576 INFO L470 AbstractCegarLoop]: Abstraction has 749 states and 977 transitions. [2021-12-06 19:35:00,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:00,576 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 977 transitions. [2021-12-06 19:35:00,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-06 19:35:00,576 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:00,576 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] [2021-12-06 19:35:00,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-12-06 19:35:00,577 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:35:00,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:00,577 INFO L85 PathProgramCache]: Analyzing trace with hash 186174220, now seen corresponding path program 1 times [2021-12-06 19:35:00,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:35:00,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511003686] [2021-12-06 19:35:00,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:00,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:35:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:00,814 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 19:35:00,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:35:00,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511003686] [2021-12-06 19:35:00,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511003686] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:00,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:00,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-06 19:35:00,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654545153] [2021-12-06 19:35:00,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:00,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 19:35:00,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:35:00,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 19:35:00,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:35:00,815 INFO L87 Difference]: Start difference. First operand 749 states and 977 transitions. Second operand has 13 states, 13 states have (on average 9.0) internal successors, (117), 13 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:04,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:04,998 INFO L93 Difference]: Finished difference Result 2959 states and 4172 transitions. [2021-12-06 19:35:04,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-06 19:35:04,998 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 13 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-06 19:35:04,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:05,000 INFO L225 Difference]: With dead ends: 2959 [2021-12-06 19:35:05,000 INFO L226 Difference]: Without dead ends: 2739 [2021-12-06 19:35:05,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-12-06 19:35:05,000 INFO L933 BasicCegarLoop]: 1400 mSDtfsCounter, 2690 mSDsluCounter, 9932 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 11332 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:05,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2690 Valid, 11332 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 19:35:05,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2739 states. [2021-12-06 19:35:05,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2739 to 695. [2021-12-06 19:35:05,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 682 states have (on average 1.3284457478005864) internal successors, (906), 694 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:05,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 906 transitions. [2021-12-06 19:35:05,437 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 906 transitions. Word has length 117 [2021-12-06 19:35:05,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:05,438 INFO L470 AbstractCegarLoop]: Abstraction has 695 states and 906 transitions. [2021-12-06 19:35:05,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 13 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:05,438 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 906 transitions. [2021-12-06 19:35:05,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-06 19:35:05,438 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:05,438 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:35:05,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-12-06 19:35:05,438 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:35:05,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:05,439 INFO L85 PathProgramCache]: Analyzing trace with hash 244543956, now seen corresponding path program 1 times [2021-12-06 19:35:05,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:35:05,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994334538] [2021-12-06 19:35:05,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:05,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:35:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:06,849 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 19:35:06,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:35:06,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994334538] [2021-12-06 19:35:06,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994334538] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:06,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:06,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2021-12-06 19:35:06,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825891506] [2021-12-06 19:35:06,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:06,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-12-06 19:35:06,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:35:06,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-12-06 19:35:06,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1355, Unknown=0, NotChecked=0, Total=1482 [2021-12-06 19:35:06,851 INFO L87 Difference]: Start difference. First operand 695 states and 906 transitions. Second operand has 39 states, 39 states have (on average 3.0) internal successors, (117), 39 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:12,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:12,981 INFO L93 Difference]: Finished difference Result 1213 states and 1602 transitions. [2021-12-06 19:35:12,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-12-06 19:35:12,981 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.0) internal successors, (117), 39 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-06 19:35:12,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:12,982 INFO L225 Difference]: With dead ends: 1213 [2021-12-06 19:35:12,982 INFO L226 Difference]: Without dead ends: 1043 [2021-12-06 19:35:12,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 911 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=763, Invalid=4639, Unknown=0, NotChecked=0, Total=5402 [2021-12-06 19:35:12,983 INFO L933 BasicCegarLoop]: 462 mSDtfsCounter, 1783 mSDsluCounter, 10759 mSDsCounter, 0 mSdLazyCounter, 6389 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 11221 SdHoareTripleChecker+Invalid, 6471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 6389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:12,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1783 Valid, 11221 Invalid, 6471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 6389 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-06 19:35:12,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2021-12-06 19:35:13,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 720. [2021-12-06 19:35:13,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 707 states have (on average 1.3281471004243282) internal successors, (939), 719 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:13,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 939 transitions. [2021-12-06 19:35:13,421 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 939 transitions. Word has length 117 [2021-12-06 19:35:13,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:13,421 INFO L470 AbstractCegarLoop]: Abstraction has 720 states and 939 transitions. [2021-12-06 19:35:13,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.0) internal successors, (117), 39 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:13,421 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 939 transitions. [2021-12-06 19:35:13,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-06 19:35:13,422 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:13,422 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] [2021-12-06 19:35:13,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-12-06 19:35:13,422 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:35:13,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:13,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1596485657, now seen corresponding path program 1 times [2021-12-06 19:35:13,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:35:13,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070284575] [2021-12-06 19:35:13,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:13,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:35:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:13,870 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 19:35:13,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:35:13,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070284575] [2021-12-06 19:35:13,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070284575] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:13,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:13,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-12-06 19:35:13,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512267776] [2021-12-06 19:35:13,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:13,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-06 19:35:13,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:35:13,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-06 19:35:13,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:35:13,871 INFO L87 Difference]: Start difference. First operand 720 states and 939 transitions. Second operand has 22 states, 22 states have (on average 5.318181818181818) internal successors, (117), 22 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:18,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:18,877 INFO L93 Difference]: Finished difference Result 2574 states and 3563 transitions. [2021-12-06 19:35:18,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-12-06 19:35:18,877 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.318181818181818) internal successors, (117), 22 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-06 19:35:18,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:18,879 INFO L225 Difference]: With dead ends: 2574 [2021-12-06 19:35:18,879 INFO L226 Difference]: Without dead ends: 2362 [2021-12-06 19:35:18,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=449, Invalid=1713, Unknown=0, NotChecked=0, Total=2162 [2021-12-06 19:35:18,880 INFO L933 BasicCegarLoop]: 1224 mSDtfsCounter, 3876 mSDsluCounter, 12923 mSDsCounter, 0 mSdLazyCounter, 3527 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3876 SdHoareTripleChecker+Valid, 14147 SdHoareTripleChecker+Invalid, 3628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 3527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:18,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3876 Valid, 14147 Invalid, 3628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 3527 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-06 19:35:18,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2021-12-06 19:35:19,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 732. [2021-12-06 19:35:19,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 719 states have (on average 1.3226703755215576) internal successors, (951), 731 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:19,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 951 transitions. [2021-12-06 19:35:19,358 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 951 transitions. Word has length 117 [2021-12-06 19:35:19,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:19,358 INFO L470 AbstractCegarLoop]: Abstraction has 732 states and 951 transitions. [2021-12-06 19:35:19,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.318181818181818) internal successors, (117), 22 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:19,358 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 951 transitions. [2021-12-06 19:35:19,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-06 19:35:19,359 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:19,359 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] [2021-12-06 19:35:19,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-12-06 19:35:19,359 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:35:19,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:19,359 INFO L85 PathProgramCache]: Analyzing trace with hash -631009489, now seen corresponding path program 1 times [2021-12-06 19:35:19,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:35:19,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132670399] [2021-12-06 19:35:19,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:19,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:35:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:19,599 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 19:35:19,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:35:19,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132670399] [2021-12-06 19:35:19,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132670399] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:19,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:19,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-06 19:35:19,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014370987] [2021-12-06 19:35:19,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:19,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 19:35:19,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:35:19,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 19:35:19,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:35:19,600 INFO L87 Difference]: Start difference. First operand 732 states and 951 transitions. Second operand has 13 states, 13 states have (on average 9.0) internal successors, (117), 13 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:23,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:23,904 INFO L93 Difference]: Finished difference Result 2910 states and 4103 transitions. [2021-12-06 19:35:23,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-06 19:35:23,905 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 13 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-06 19:35:23,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:23,907 INFO L225 Difference]: With dead ends: 2910 [2021-12-06 19:35:23,907 INFO L226 Difference]: Without dead ends: 2698 [2021-12-06 19:35:23,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2021-12-06 19:35:23,908 INFO L933 BasicCegarLoop]: 1330 mSDtfsCounter, 3174 mSDsluCounter, 7428 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3174 SdHoareTripleChecker+Valid, 8758 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:23,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3174 Valid, 8758 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 19:35:23,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2021-12-06 19:35:24,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 686. [2021-12-06 19:35:24,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 674 states have (on average 1.3204747774480712) internal successors, (890), 685 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:24,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 890 transitions. [2021-12-06 19:35:24,370 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 890 transitions. Word has length 117 [2021-12-06 19:35:24,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:24,370 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 890 transitions. [2021-12-06 19:35:24,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 13 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:24,370 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 890 transitions. [2021-12-06 19:35:24,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-06 19:35:24,371 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:24,371 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] [2021-12-06 19:35:24,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-12-06 19:35:24,371 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:35:24,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:24,371 INFO L85 PathProgramCache]: Analyzing trace with hash -526119604, now seen corresponding path program 1 times [2021-12-06 19:35:24,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:35:24,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54040557] [2021-12-06 19:35:24,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:24,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:35:24,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:24,549 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 19:35:24,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:35:24,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54040557] [2021-12-06 19:35:24,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54040557] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:24,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:24,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:35:24,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181145655] [2021-12-06 19:35:24,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:24,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:35:24,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:35:24,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:35:24,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:35:24,550 INFO L87 Difference]: Start difference. First operand 686 states and 890 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:26,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:26,611 INFO L93 Difference]: Finished difference Result 1856 states and 2518 transitions. [2021-12-06 19:35:26,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 19:35:26,612 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-12-06 19:35:26,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:26,613 INFO L225 Difference]: With dead ends: 1856 [2021-12-06 19:35:26,613 INFO L226 Difference]: Without dead ends: 1472 [2021-12-06 19:35:26,613 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 19:35:26,614 INFO L933 BasicCegarLoop]: 980 mSDtfsCounter, 2028 mSDsluCounter, 4287 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2028 SdHoareTripleChecker+Valid, 5267 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:26,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2028 Valid, 5267 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:35:26,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2021-12-06 19:35:26,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 468. [2021-12-06 19:35:26,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 461 states have (on average 1.3123644251626898) internal successors, (605), 467 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:26,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 605 transitions. [2021-12-06 19:35:26,988 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 605 transitions. Word has length 117 [2021-12-06 19:35:26,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:26,988 INFO L470 AbstractCegarLoop]: Abstraction has 468 states and 605 transitions. [2021-12-06 19:35:26,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:26,988 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 605 transitions. [2021-12-06 19:35:26,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-06 19:35:26,988 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:26,988 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] [2021-12-06 19:35:26,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-12-06 19:35:26,989 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:35:26,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:26,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1737749487, now seen corresponding path program 1 times [2021-12-06 19:35:26,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:35:26,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519640388] [2021-12-06 19:35:26,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:26,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:35:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:27,170 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 19:35:27,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:35:27,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519640388] [2021-12-06 19:35:27,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519640388] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:27,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:27,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:35:27,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057174400] [2021-12-06 19:35:27,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:27,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:35:27,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:35:27,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:35:27,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:35:27,171 INFO L87 Difference]: Start difference. First operand 468 states and 605 transitions. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:29,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:29,722 INFO L93 Difference]: Finished difference Result 1598 states and 2266 transitions. [2021-12-06 19:35:29,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 19:35:29,722 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-12-06 19:35:29,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:29,723 INFO L225 Difference]: With dead ends: 1598 [2021-12-06 19:35:29,723 INFO L226 Difference]: Without dead ends: 1406 [2021-12-06 19:35:29,724 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 19:35:29,724 INFO L933 BasicCegarLoop]: 827 mSDtfsCounter, 1979 mSDsluCounter, 3887 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 4714 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:29,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1979 Valid, 4714 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:35:29,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2021-12-06 19:35:30,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 421. [2021-12-06 19:35:30,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.3028846153846154) internal successors, (542), 420 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:30,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 542 transitions. [2021-12-06 19:35:30,104 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 542 transitions. Word has length 118 [2021-12-06 19:35:30,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:30,104 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 542 transitions. [2021-12-06 19:35:30,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:30,104 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 542 transitions. [2021-12-06 19:35:30,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-06 19:35:30,104 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:30,104 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] [2021-12-06 19:35:30,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-12-06 19:35:30,104 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:35:30,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:30,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1119350499, now seen corresponding path program 1 times [2021-12-06 19:35:30,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:35:30,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256404289] [2021-12-06 19:35:30,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:30,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:35:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:30,212 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 19:35:30,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:35:30,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256404289] [2021-12-06 19:35:30,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256404289] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:30,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:30,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-06 19:35:30,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006319966] [2021-12-06 19:35:30,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:30,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:35:30,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:35:30,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:35:30,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:35:30,214 INFO L87 Difference]: Start difference. First operand 421 states and 542 transitions. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 11 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:34,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:34,882 INFO L93 Difference]: Finished difference Result 2183 states and 3129 transitions. [2021-12-06 19:35:34,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-06 19:35:34,883 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 11 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-12-06 19:35:34,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:34,884 INFO L225 Difference]: With dead ends: 2183 [2021-12-06 19:35:34,884 INFO L226 Difference]: Without dead ends: 1987 [2021-12-06 19:35:34,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 19:35:34,885 INFO L933 BasicCegarLoop]: 467 mSDtfsCounter, 2604 mSDsluCounter, 2025 mSDsCounter, 0 mSdLazyCounter, 1978 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2604 SdHoareTripleChecker+Valid, 2492 SdHoareTripleChecker+Invalid, 2120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:34,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2604 Valid, 2492 Invalid, 2120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1978 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:35:34,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2021-12-06 19:35:35,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 429. [2021-12-06 19:35:35,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 424 states have (on average 1.2971698113207548) internal successors, (550), 428 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:35,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 550 transitions. [2021-12-06 19:35:35,273 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 550 transitions. Word has length 118 [2021-12-06 19:35:35,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:35,273 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 550 transitions. [2021-12-06 19:35:35,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 11 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:35,274 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 550 transitions. [2021-12-06 19:35:35,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-06 19:35:35,274 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:35,274 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] [2021-12-06 19:35:35,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-12-06 19:35:35,274 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:35:35,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:35,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1709435163, now seen corresponding path program 1 times [2021-12-06 19:35:35,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:35:35,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15225413] [2021-12-06 19:35:35,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:35,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:35:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:35,506 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 19:35:35,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:35:35,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15225413] [2021-12-06 19:35:35,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15225413] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:35,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:35,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-06 19:35:35,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085359649] [2021-12-06 19:35:35,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:35,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 19:35:35,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:35:35,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 19:35:35,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:35:35,507 INFO L87 Difference]: Start difference. First operand 429 states and 550 transitions. Second operand has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:38,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:38,258 INFO L93 Difference]: Finished difference Result 1629 states and 2291 transitions. [2021-12-06 19:35:38,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-06 19:35:38,259 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-12-06 19:35:38,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:38,260 INFO L225 Difference]: With dead ends: 1629 [2021-12-06 19:35:38,260 INFO L226 Difference]: Without dead ends: 1385 [2021-12-06 19:35:38,260 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 19:35:38,261 INFO L933 BasicCegarLoop]: 693 mSDtfsCounter, 1902 mSDsluCounter, 4314 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1902 SdHoareTripleChecker+Valid, 5007 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:38,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1902 Valid, 5007 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:35:38,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2021-12-06 19:35:38,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 351. [2021-12-06 19:35:38,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 349 states have (on average 1.2979942693409743) internal successors, (453), 350 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:38,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 453 transitions. [2021-12-06 19:35:38,631 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 453 transitions. Word has length 118 [2021-12-06 19:35:38,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:38,631 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 453 transitions. [2021-12-06 19:35:38,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:38,631 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 453 transitions. [2021-12-06 19:35:38,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-06 19:35:38,631 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:38,631 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:35:38,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-12-06 19:35:38,631 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:35:38,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:38,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1366536118, now seen corresponding path program 1 times [2021-12-06 19:35:38,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:35:38,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571639500] [2021-12-06 19:35:38,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:38,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:35:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:38,701 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 19:35:38,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:35:38,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571639500] [2021-12-06 19:35:38,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571639500] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:38,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:38,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:35:38,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166599023] [2021-12-06 19:35:38,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:38,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:35:38,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:35:38,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:35:38,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:35:38,703 INFO L87 Difference]: Start difference. First operand 351 states and 453 transitions. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:39,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:39,712 INFO L93 Difference]: Finished difference Result 753 states and 1035 transitions. [2021-12-06 19:35:39,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 19:35:39,713 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-12-06 19:35:39,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:39,714 INFO L225 Difference]: With dead ends: 753 [2021-12-06 19:35:39,714 INFO L226 Difference]: Without dead ends: 557 [2021-12-06 19:35:39,714 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 19:35:39,714 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 722 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:39,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [722 Valid, 818 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:35:39,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2021-12-06 19:35:40,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 343. [2021-12-06 19:35:40,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 341 states have (on average 1.2991202346041055) internal successors, (443), 342 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 19:35:40,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 443 transitions. [2021-12-06 19:35:40,072 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 443 transitions. Word has length 119 [2021-12-06 19:35:40,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:40,072 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 443 transitions. [2021-12-06 19:35:40,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:40,073 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 443 transitions. [2021-12-06 19:35:40,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-06 19:35:40,073 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:40,073 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] [2021-12-06 19:35:40,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-12-06 19:35:40,073 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:35:40,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:40,073 INFO L85 PathProgramCache]: Analyzing trace with hash 936317779, now seen corresponding path program 1 times [2021-12-06 19:35:40,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:35:40,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035265606] [2021-12-06 19:35:40,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:40,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:35:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:41,344 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 19:35:41,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:35:41,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035265606] [2021-12-06 19:35:41,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035265606] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:41,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:41,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2021-12-06 19:35:41,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040752594] [2021-12-06 19:35:41,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:41,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-12-06 19:35:41,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:35:41,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-12-06 19:35:41,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=1308, Unknown=0, NotChecked=0, Total=1406 [2021-12-06 19:35:41,346 INFO L87 Difference]: Start difference. First operand 343 states and 443 transitions. Second operand has 38 states, 38 states have (on average 3.1578947368421053) internal successors, (120), 38 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:48,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:48,492 INFO L93 Difference]: Finished difference Result 1255 states and 1781 transitions. [2021-12-06 19:35:48,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-12-06 19:35:48,492 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.1578947368421053) internal successors, (120), 38 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-12-06 19:35:48,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:48,493 INFO L225 Difference]: With dead ends: 1255 [2021-12-06 19:35:48,493 INFO L226 Difference]: Without dead ends: 1249 [2021-12-06 19:35:48,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 801 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=674, Invalid=4438, Unknown=0, NotChecked=0, Total=5112 [2021-12-06 19:35:48,494 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 2054 mSDsluCounter, 7528 mSDsCounter, 0 mSdLazyCounter, 4296 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2054 SdHoareTripleChecker+Valid, 7833 SdHoareTripleChecker+Invalid, 4362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 4296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:48,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2054 Valid, 7833 Invalid, 4362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 4296 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-06 19:35:48,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2021-12-06 19:35:48,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 369. [2021-12-06 19:35:48,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 367 states have (on average 1.2942779291553133) internal successors, (475), 368 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:48,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 475 transitions. [2021-12-06 19:35:48,873 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 475 transitions. Word has length 120 [2021-12-06 19:35:48,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:48,874 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 475 transitions. [2021-12-06 19:35:48,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.1578947368421053) internal successors, (120), 38 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:48,874 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 475 transitions. [2021-12-06 19:35:48,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-06 19:35:48,874 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:48,874 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] [2021-12-06 19:35:48,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-12-06 19:35:48,874 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:35:48,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:48,875 INFO L85 PathProgramCache]: Analyzing trace with hash -2062289930, now seen corresponding path program 1 times [2021-12-06 19:35:48,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:35:48,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436919439] [2021-12-06 19:35:48,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:48,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:35:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:49,064 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 19:35:49,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:35:49,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436919439] [2021-12-06 19:35:49,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436919439] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:49,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:49,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:35:49,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199382452] [2021-12-06 19:35:49,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:49,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:35:49,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:35:49,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:35:49,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:35:49,065 INFO L87 Difference]: Start difference. First operand 369 states and 475 transitions. Second operand has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:50,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:50,955 INFO L93 Difference]: Finished difference Result 921 states and 1285 transitions. [2021-12-06 19:35:50,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 19:35:50,956 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-12-06 19:35:50,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:50,957 INFO L225 Difference]: With dead ends: 921 [2021-12-06 19:35:50,957 INFO L226 Difference]: Without dead ends: 915 [2021-12-06 19:35:50,957 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 19:35:50,957 INFO L933 BasicCegarLoop]: 600 mSDtfsCounter, 1227 mSDsluCounter, 2819 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 3419 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:50,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1227 Valid, 3419 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:35:50,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2021-12-06 19:35:51,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 337. [2021-12-06 19:35:51,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 336 states have (on average 1.2976190476190477) internal successors, (436), 336 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:51,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 436 transitions. [2021-12-06 19:35:51,326 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 436 transitions. Word has length 121 [2021-12-06 19:35:51,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:51,327 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 436 transitions. [2021-12-06 19:35:51,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:51,327 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 436 transitions. [2021-12-06 19:35:51,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-06 19:35:51,327 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:51,327 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:35:51,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-12-06 19:35:51,327 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:35:51,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:51,328 INFO L85 PathProgramCache]: Analyzing trace with hash -433113524, now seen corresponding path program 1 times [2021-12-06 19:35:51,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:35:51,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509476553] [2021-12-06 19:35:51,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:51,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:35:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:51,394 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 19:35:51,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:35:51,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509476553] [2021-12-06 19:35:51,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509476553] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:51,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:51,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:35:51,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020594048] [2021-12-06 19:35:51,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:51,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:35:51,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:35:51,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:35:51,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:35:51,395 INFO L87 Difference]: Start difference. First operand 337 states and 436 transitions. Second operand has 9 states, 9 states have (on average 17.22222222222222) internal successors, (155), 9 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:56,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:56,076 INFO L93 Difference]: Finished difference Result 2661 states and 3936 transitions. [2021-12-06 19:35:56,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:35:56,076 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.22222222222222) internal successors, (155), 9 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2021-12-06 19:35:56,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:56,078 INFO L225 Difference]: With dead ends: 2661 [2021-12-06 19:35:56,078 INFO L226 Difference]: Without dead ends: 2495 [2021-12-06 19:35:56,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2021-12-06 19:35:56,079 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 2720 mSDsluCounter, 3471 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2720 SdHoareTripleChecker+Valid, 3738 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:56,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2720 Valid, 3738 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:35:56,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2495 states. [2021-12-06 19:35:56,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2495 to 501. [2021-12-06 19:35:56,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 500 states have (on average 1.362) internal successors, (681), 500 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:56,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 681 transitions. [2021-12-06 19:35:56,791 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 681 transitions. Word has length 155 [2021-12-06 19:35:56,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:56,791 INFO L470 AbstractCegarLoop]: Abstraction has 501 states and 681 transitions. [2021-12-06 19:35:56,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.22222222222222) internal successors, (155), 9 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:35:56,791 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 681 transitions. [2021-12-06 19:35:56,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-06 19:35:56,792 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:56,792 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:35:56,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-12-06 19:35:56,792 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:35:56,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:56,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1991648831, now seen corresponding path program 1 times [2021-12-06 19:35:56,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:35:56,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665237773] [2021-12-06 19:35:56,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:56,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:35:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:56,861 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 19:35:56,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:35:56,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665237773] [2021-12-06 19:35:56,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665237773] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:56,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:56,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:35:56,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057909873] [2021-12-06 19:35:56,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:56,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:35:56,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:35:56,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:35:56,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:35:56,863 INFO L87 Difference]: Start difference. First operand 501 states and 681 transitions. Second operand has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:01,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:36:01,888 INFO L93 Difference]: Finished difference Result 2977 states and 4392 transitions. [2021-12-06 19:36:01,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:36:01,889 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2021-12-06 19:36:01,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:36:01,891 INFO L225 Difference]: With dead ends: 2977 [2021-12-06 19:36:01,891 INFO L226 Difference]: Without dead ends: 2647 [2021-12-06 19:36:01,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-06 19:36:01,891 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 2217 mSDsluCounter, 1792 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2217 SdHoareTripleChecker+Valid, 2174 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:36:01,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2217 Valid, 2174 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:36:01,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2647 states. [2021-12-06 19:36:03,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2647 to 829. [2021-12-06 19:36:03,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 828 states have (on average 1.4166666666666667) internal successors, (1173), 828 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:03,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1173 transitions. [2021-12-06 19:36:03,269 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1173 transitions. Word has length 157 [2021-12-06 19:36:03,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:36:03,269 INFO L470 AbstractCegarLoop]: Abstraction has 829 states and 1173 transitions. [2021-12-06 19:36:03,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:03,269 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1173 transitions. [2021-12-06 19:36:03,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-06 19:36:03,270 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:36:03,270 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:36:03,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-12-06 19:36:03,270 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:36:03,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:03,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1769378683, now seen corresponding path program 1 times [2021-12-06 19:36:03,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:36:03,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598094706] [2021-12-06 19:36:03,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:03,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:36:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:36:03,338 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 19:36:03,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:36:03,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598094706] [2021-12-06 19:36:03,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598094706] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:36:03,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:36:03,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:36:03,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059438590] [2021-12-06 19:36:03,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:36:03,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:36:03,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:36:03,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:36:03,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:36:03,339 INFO L87 Difference]: Start difference. First operand 829 states and 1173 transitions. Second operand has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:09,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:36:09,035 INFO L93 Difference]: Finished difference Result 3305 states and 4884 transitions. [2021-12-06 19:36:09,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:36:09,035 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2021-12-06 19:36:09,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:36:09,037 INFO L225 Difference]: With dead ends: 3305 [2021-12-06 19:36:09,037 INFO L226 Difference]: Without dead ends: 2975 [2021-12-06 19:36:09,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-06 19:36:09,038 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 2287 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2287 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:36:09,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2287 Valid, 1961 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:36:09,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2021-12-06 19:36:11,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 1321. [2021-12-06 19:36:11,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 1320 states have (on average 1.446969696969697) internal successors, (1910), 1320 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:11,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1910 transitions. [2021-12-06 19:36:11,428 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1910 transitions. Word has length 157 [2021-12-06 19:36:11,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:36:11,428 INFO L470 AbstractCegarLoop]: Abstraction has 1321 states and 1910 transitions. [2021-12-06 19:36:11,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:11,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1910 transitions. [2021-12-06 19:36:11,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-06 19:36:11,429 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:36:11,429 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:36:11,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-12-06 19:36:11,429 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:36:11,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:11,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1616943691, now seen corresponding path program 1 times [2021-12-06 19:36:11,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:36:11,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627476158] [2021-12-06 19:36:11,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:11,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:36:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:36:11,504 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 19:36:11,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:36:11,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627476158] [2021-12-06 19:36:11,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627476158] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:36:11,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:36:11,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:36:11,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585084932] [2021-12-06 19:36:11,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:36:11,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:36:11,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:36:11,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:36:11,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:36:11,505 INFO L87 Difference]: Start difference. First operand 1321 states and 1910 transitions. Second operand has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:17,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:36:17,931 INFO L93 Difference]: Finished difference Result 3633 states and 5376 transitions. [2021-12-06 19:36:17,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:36:17,932 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2021-12-06 19:36:17,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:36:17,935 INFO L225 Difference]: With dead ends: 3633 [2021-12-06 19:36:17,935 INFO L226 Difference]: Without dead ends: 3303 [2021-12-06 19:36:17,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-06 19:36:17,936 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 2527 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2527 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:36:17,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2527 Valid, 1910 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:36:17,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3303 states. [2021-12-06 19:36:21,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3303 to 1649. [2021-12-06 19:36:21,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1648 states have (on average 1.4575242718446602) internal successors, (2402), 1648 states have internal predecessors, (2402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:21,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2402 transitions. [2021-12-06 19:36:21,060 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2402 transitions. Word has length 157 [2021-12-06 19:36:21,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:36:21,060 INFO L470 AbstractCegarLoop]: Abstraction has 1649 states and 2402 transitions. [2021-12-06 19:36:21,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:21,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2402 transitions. [2021-12-06 19:36:21,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-06 19:36:21,061 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:36:21,061 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:36:21,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-12-06 19:36:21,061 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:36:21,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:21,061 INFO L85 PathProgramCache]: Analyzing trace with hash -43992562, now seen corresponding path program 1 times [2021-12-06 19:36:21,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:36:21,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208241210] [2021-12-06 19:36:21,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:21,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:36:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:36:21,194 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 19:36:21,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:36:21,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208241210] [2021-12-06 19:36:21,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208241210] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:36:21,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:36:21,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:36:21,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980003152] [2021-12-06 19:36:21,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:36:21,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:36:21,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:36:21,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:36:21,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:36:21,196 INFO L87 Difference]: Start difference. First operand 1649 states and 2402 transitions. Second operand has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:24,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:36:24,372 INFO L93 Difference]: Finished difference Result 3129 states and 4619 transitions. [2021-12-06 19:36:24,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:36:24,372 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2021-12-06 19:36:24,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:36:24,374 INFO L225 Difference]: With dead ends: 3129 [2021-12-06 19:36:24,374 INFO L226 Difference]: Without dead ends: 1651 [2021-12-06 19:36:24,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:36:24,375 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 1304 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:36:24,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1304 Valid, 987 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:36:24,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2021-12-06 19:36:27,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1649. [2021-12-06 19:36:27,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1648 states have (on average 1.4514563106796117) internal successors, (2392), 1648 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:27,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2392 transitions. [2021-12-06 19:36:27,391 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2392 transitions. Word has length 157 [2021-12-06 19:36:27,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:36:27,391 INFO L470 AbstractCegarLoop]: Abstraction has 1649 states and 2392 transitions. [2021-12-06 19:36:27,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:27,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2392 transitions. [2021-12-06 19:36:27,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-06 19:36:27,392 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:36:27,392 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:36:27,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-12-06 19:36:27,392 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:36:27,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:27,393 INFO L85 PathProgramCache]: Analyzing trace with hash -783732883, now seen corresponding path program 1 times [2021-12-06 19:36:27,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:36:27,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060432561] [2021-12-06 19:36:27,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:27,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:36:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:36:27,435 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 19:36:27,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:36:27,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060432561] [2021-12-06 19:36:27,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060432561] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:36:27,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:36:27,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:36:27,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548193952] [2021-12-06 19:36:27,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:36:27,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:36:27,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:36:27,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:36:27,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:36:27,436 INFO L87 Difference]: Start difference. First operand 1649 states and 2392 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:33,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:36:33,269 INFO L93 Difference]: Finished difference Result 4489 states and 6610 transitions. [2021-12-06 19:36:33,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:36:33,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2021-12-06 19:36:33,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:36:33,272 INFO L225 Difference]: With dead ends: 4489 [2021-12-06 19:36:33,272 INFO L226 Difference]: Without dead ends: 3011 [2021-12-06 19:36:33,273 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 19:36:33,273 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 158 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:36:33,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 422 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:36:33,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3011 states. [2021-12-06 19:36:39,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3011 to 2991. [2021-12-06 19:36:39,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2991 states, 2990 states have (on average 1.451170568561873) internal successors, (4339), 2990 states have internal predecessors, (4339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:39,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2991 states to 2991 states and 4339 transitions. [2021-12-06 19:36:39,216 INFO L78 Accepts]: Start accepts. Automaton has 2991 states and 4339 transitions. Word has length 157 [2021-12-06 19:36:39,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:36:39,216 INFO L470 AbstractCegarLoop]: Abstraction has 2991 states and 4339 transitions. [2021-12-06 19:36:39,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:39,216 INFO L276 IsEmpty]: Start isEmpty. Operand 2991 states and 4339 transitions. [2021-12-06 19:36:39,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-06 19:36:39,217 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:36:39,217 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:36:39,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-12-06 19:36:39,217 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:36:39,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:39,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1691177897, now seen corresponding path program 1 times [2021-12-06 19:36:39,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:36:39,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102592142] [2021-12-06 19:36:39,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:39,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:36:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:36:39,288 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 19:36:39,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:36:39,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102592142] [2021-12-06 19:36:39,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102592142] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:36:39,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:36:39,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:36:39,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830944873] [2021-12-06 19:36:39,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:36:39,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:36:39,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:36:39,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:36:39,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:36:39,290 INFO L87 Difference]: Start difference. First operand 2991 states and 4339 transitions. Second operand has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:53,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:36:53,092 INFO L93 Difference]: Finished difference Result 7389 states and 10829 transitions. [2021-12-06 19:36:53,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:36:53,093 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2021-12-06 19:36:53,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:36:53,098 INFO L225 Difference]: With dead ends: 7389 [2021-12-06 19:36:53,098 INFO L226 Difference]: Without dead ends: 6761 [2021-12-06 19:36:53,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-06 19:36:53,099 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 2315 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2315 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:36:53,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2315 Valid, 2106 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:36:53,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6761 states. [2021-12-06 19:37:00,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6761 to 3617. [2021-12-06 19:37:00,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3617 states, 3616 states have (on average 1.4549225663716814) internal successors, (5261), 3616 states have internal predecessors, (5261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:37:00,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3617 states to 3617 states and 5261 transitions. [2021-12-06 19:37:00,294 INFO L78 Accepts]: Start accepts. Automaton has 3617 states and 5261 transitions. Word has length 157 [2021-12-06 19:37:00,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:37:00,294 INFO L470 AbstractCegarLoop]: Abstraction has 3617 states and 5261 transitions. [2021-12-06 19:37:00,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:37:00,294 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 5261 transitions. [2021-12-06 19:37:00,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-06 19:37:00,295 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:37:00,295 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:37:00,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-12-06 19:37:00,295 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:37:00,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:37:00,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1484369809, now seen corresponding path program 1 times [2021-12-06 19:37:00,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:37:00,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602295188] [2021-12-06 19:37:00,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:37:00,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:37:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:37:00,367 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 19:37:00,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:37:00,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602295188] [2021-12-06 19:37:00,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602295188] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:37:00,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:37:00,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:37:00,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956058209] [2021-12-06 19:37:00,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:37:00,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:37:00,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:37:00,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:37:00,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:37:00,368 INFO L87 Difference]: Start difference. First operand 3617 states and 5261 transitions. Second operand has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:37:15,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:37:15,314 INFO L93 Difference]: Finished difference Result 8015 states and 11751 transitions. [2021-12-06 19:37:15,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:37:15,315 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2021-12-06 19:37:15,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:37:15,320 INFO L225 Difference]: With dead ends: 8015 [2021-12-06 19:37:15,320 INFO L226 Difference]: Without dead ends: 7387 [2021-12-06 19:37:15,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-06 19:37:15,322 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 2099 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2099 SdHoareTripleChecker+Valid, 2312 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:37:15,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2099 Valid, 2312 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:37:15,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7387 states. [2021-12-06 19:37:23,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7387 to 4243. [2021-12-06 19:37:23,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4243 states, 4242 states have (on average 1.4575671852899577) internal successors, (6183), 4242 states have internal predecessors, (6183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:37:23,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4243 states to 4243 states and 6183 transitions. [2021-12-06 19:37:23,769 INFO L78 Accepts]: Start accepts. Automaton has 4243 states and 6183 transitions. Word has length 157 [2021-12-06 19:37:23,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:37:23,769 INFO L470 AbstractCegarLoop]: Abstraction has 4243 states and 6183 transitions. [2021-12-06 19:37:23,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:37:23,769 INFO L276 IsEmpty]: Start isEmpty. Operand 4243 states and 6183 transitions. [2021-12-06 19:37:23,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-12-06 19:37:23,770 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:37:23,770 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:37:23,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-12-06 19:37:23,770 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:37:23,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:37:23,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1959315321, now seen corresponding path program 1 times [2021-12-06 19:37:23,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:37:23,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327331603] [2021-12-06 19:37:23,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:37:23,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:37:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:37:23,836 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 19:37:23,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:37:23,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327331603] [2021-12-06 19:37:23,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327331603] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:37:23,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:37:23,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:37:23,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799276413] [2021-12-06 19:37:23,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:37:23,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:37:23,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:37:23,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:37:23,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:37:23,838 INFO L87 Difference]: Start difference. First operand 4243 states and 6183 transitions. Second operand has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:37:40,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:37:40,213 INFO L93 Difference]: Finished difference Result 8641 states and 12673 transitions. [2021-12-06 19:37:40,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:37:40,213 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2021-12-06 19:37:40,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:37:40,219 INFO L225 Difference]: With dead ends: 8641 [2021-12-06 19:37:40,219 INFO L226 Difference]: Without dead ends: 8013 [2021-12-06 19:37:40,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-06 19:37:40,221 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 2120 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2120 SdHoareTripleChecker+Valid, 2693 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:37:40,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2120 Valid, 2693 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:37:40,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8013 states. [2021-12-06 19:37:50,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8013 to 4869. [2021-12-06 19:37:50,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4869 states, 4868 states have (on average 1.459531635168447) internal successors, (7105), 4868 states have internal predecessors, (7105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:37:50,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4869 states to 4869 states and 7105 transitions. [2021-12-06 19:37:50,058 INFO L78 Accepts]: Start accepts. Automaton has 4869 states and 7105 transitions. Word has length 157 [2021-12-06 19:37:50,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:37:50,058 INFO L470 AbstractCegarLoop]: Abstraction has 4869 states and 7105 transitions. [2021-12-06 19:37:50,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:37:50,059 INFO L276 IsEmpty]: Start isEmpty. Operand 4869 states and 7105 transitions. [2021-12-06 19:37:50,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-06 19:37:50,060 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:37:50,060 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:37:50,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-12-06 19:37:50,060 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:37:50,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:37:50,060 INFO L85 PathProgramCache]: Analyzing trace with hash -812866883, now seen corresponding path program 1 times [2021-12-06 19:37:50,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:37:50,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120975518] [2021-12-06 19:37:50,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:37:50,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:37:50,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:37:50,101 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 19:37:50,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:37:50,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120975518] [2021-12-06 19:37:50,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120975518] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:37:50,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:37:50,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:37:50,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188723371] [2021-12-06 19:37:50,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:37:50,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:37:50,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:37:50,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:37:50,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:37:50,102 INFO L87 Difference]: Start difference. First operand 4869 states and 7105 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:03,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:38:03,871 INFO L93 Difference]: Finished difference Result 11539 states and 16936 transitions. [2021-12-06 19:38:03,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:38:03,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2021-12-06 19:38:03,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:38:03,877 INFO L225 Difference]: With dead ends: 11539 [2021-12-06 19:38:03,877 INFO L226 Difference]: Without dead ends: 6841 [2021-12-06 19:38:03,880 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 19:38:03,880 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 112 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:38:03,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 614 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:38:03,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6841 states. [2021-12-06 19:38:17,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6841 to 6807. [2021-12-06 19:38:17,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6807 states, 6806 states have (on average 1.4578313253012047) internal successors, (9922), 6806 states have internal predecessors, (9922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:17,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6807 states to 6807 states and 9922 transitions. [2021-12-06 19:38:17,595 INFO L78 Accepts]: Start accepts. Automaton has 6807 states and 9922 transitions. Word has length 158 [2021-12-06 19:38:17,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:38:17,595 INFO L470 AbstractCegarLoop]: Abstraction has 6807 states and 9922 transitions. [2021-12-06 19:38:17,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:17,596 INFO L276 IsEmpty]: Start isEmpty. Operand 6807 states and 9922 transitions. [2021-12-06 19:38:17,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-06 19:38:17,597 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:38:17,597 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:38:17,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-12-06 19:38:17,597 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:38:17,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:17,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1527169923, now seen corresponding path program 1 times [2021-12-06 19:38:17,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:17,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297347966] [2021-12-06 19:38:17,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:17,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:17,664 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 19:38:17,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:38:17,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297347966] [2021-12-06 19:38:17,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297347966] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:38:17,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:38:17,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 19:38:17,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110777446] [2021-12-06 19:38:17,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:38:17,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:38:17,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:38:17,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:38:17,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:38:17,665 INFO L87 Difference]: Start difference. First operand 6807 states and 9922 transitions. Second operand has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:42,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:38:42,559 INFO L93 Difference]: Finished difference Result 13105 states and 19180 transitions. [2021-12-06 19:38:42,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:38:42,560 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2021-12-06 19:38:42,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:38:42,570 INFO L225 Difference]: With dead ends: 13105 [2021-12-06 19:38:42,570 INFO L226 Difference]: Without dead ends: 12203 [2021-12-06 19:38:42,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-06 19:38:42,572 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 2121 mSDsluCounter, 2117 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2121 SdHoareTripleChecker+Valid, 2489 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:38:42,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2121 Valid, 2489 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:38:42,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12203 states. [2021-12-06 19:38:58,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12203 to 7689. [2021-12-06 19:38:58,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7689 states, 7688 states have (on average 1.4588969823100937) internal successors, (11216), 7688 states have internal predecessors, (11216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:58,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7689 states to 7689 states and 11216 transitions. [2021-12-06 19:38:58,361 INFO L78 Accepts]: Start accepts. Automaton has 7689 states and 11216 transitions. Word has length 158 [2021-12-06 19:38:58,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:38:58,361 INFO L470 AbstractCegarLoop]: Abstraction has 7689 states and 11216 transitions. [2021-12-06 19:38:58,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:58,361 INFO L276 IsEmpty]: Start isEmpty. Operand 7689 states and 11216 transitions. [2021-12-06 19:38:58,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-06 19:38:58,362 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:38:58,362 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:38:58,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-12-06 19:38:58,363 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-06 19:38:58,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:58,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1422936776, now seen corresponding path program 1 times [2021-12-06 19:38:58,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:38:58,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427835957] [2021-12-06 19:38:58,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:58,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:38:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:58,405 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 19:38:58,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:38:58,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427835957] [2021-12-06 19:38:58,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427835957] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:38:58,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:38:58,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:38:58,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334517083] [2021-12-06 19:38:58,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:38:58,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:38:58,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:38:58,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:38:58,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:38:58,406 INFO L87 Difference]: Start difference. First operand 7689 states and 11216 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:39:28,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:39:28,846 INFO L93 Difference]: Finished difference Result 22317 states and 32562 transitions. [2021-12-06 19:39:28,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:39:28,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2021-12-06 19:39:28,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:39:28,860 INFO L225 Difference]: With dead ends: 22317 [2021-12-06 19:39:28,860 INFO L226 Difference]: Without dead ends: 14799 [2021-12-06 19:39:28,864 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 19:39:28,865 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 124 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 563 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 19:39:28,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 563 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:39:28,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14799 states.