./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 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/bin/utaipan-ByfvJB40ur/config/TaipanReach.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_0600f653-3a66-44a6-bd5a-cb3f06feb932/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b77f3a84818afa598b0eb39254acb84b353143275f6b4c2e95d15ee5488d008 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:22:58,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:22:58,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:22:58,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:22:58,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:22:58,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:22:58,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:22:58,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:22:58,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:22:58,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:22:58,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:22:58,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:22:58,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:22:58,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:22:58,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:22:58,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:22:58,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:22:58,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:22:58,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:22:58,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:22:58,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:22:58,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:22:58,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:22:58,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:22:58,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:22:58,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:22:58,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:22:58,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:22:58,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:22:58,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:22:58,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:22:58,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:22:58,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:22:58,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:22:58,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:22:58,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:22:58,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:22:58,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:22:58,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:22:58,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:22:58,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:22:58,804 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 23:22:58,827 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:22:58,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:22:58,828 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:22:58,828 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:22:58,828 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:22:58,829 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:22:58,829 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:22:58,829 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:22:58,829 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:22:58,830 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:22:58,830 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:22:58,830 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:22:58,830 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:22:58,831 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:22:58,831 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:22:58,831 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:22:58,831 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:22:58,832 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:22:58,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:22:58,832 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:22:58,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:22:58,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:22:58,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:22:58,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:22:58,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:22:58,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:22:58,834 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:22:58,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:22:58,834 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:22:58,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:22:58,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:22:58,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:22:58,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:22:58,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:22:58,836 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:22:58,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:22:58,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:22:58,837 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:22:58,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:22:58,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:22:58,837 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:22:58,837 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_0600f653-3a66-44a6-bd5a-cb3f06feb932/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b77f3a84818afa598b0eb39254acb84b353143275f6b4c2e95d15ee5488d008 [2022-11-25 23:22:59,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:22:59,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:22:59,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:22:59,095 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:22:59,096 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:22:59,097 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-25 23:23:02,156 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:23:02,668 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:23:02,668 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-25 23:23:02,719 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/bin/utaipan-ByfvJB40ur/data/352766ecd/0ee5dd72df854a85b6b93086f99a84ee/FLAG936db7029 [2022-11-25 23:23:02,738 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/bin/utaipan-ByfvJB40ur/data/352766ecd/0ee5dd72df854a85b6b93086f99a84ee [2022-11-25 23:23:02,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:23:02,746 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:23:02,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:23:02,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:23:02,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:23:02,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:23:02" (1/1) ... [2022-11-25 23:23:02,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@223e02f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:02, skipping insertion in model container [2022-11-25 23:23:02,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:23:02" (1/1) ... [2022-11-25 23:23:02,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:23:02,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:23:03,602 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16849,16862] [2022-11-25 23:23:03,679 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21942,21955] [2022-11-25 23:23:03,718 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23299,23312] [2022-11-25 23:23:03,726 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24107,24120] [2022-11-25 23:23:03,738 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25792,25805] [2022-11-25 23:23:03,744 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26600,26613] [2022-11-25 23:23:03,753 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27736,27749] [2022-11-25 23:23:03,770 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30390,30403] [2022-11-25 23:23:03,777 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31201,31214] [2022-11-25 23:23:03,789 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32340,32353] [2022-11-25 23:23:03,808 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34445,34458] [2022-11-25 23:23:03,841 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38533,38546] [2022-11-25 23:23:03,848 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[39344,39357] [2022-11-25 23:23:03,856 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40483,40496] [2022-11-25 23:23:03,870 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[42588,42601] [2022-11-25 23:23:03,892 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[46127,46140] [2022-11-25 23:23:03,935 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52573,52586] [2022-11-25 23:23:03,942 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[53384,53397] [2022-11-25 23:23:03,950 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[54527,54540] [2022-11-25 23:23:03,964 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[56636,56649] [2022-11-25 23:23:03,987 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60424,60437] [2022-11-25 23:23:04,025 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[67072,67085] [2022-11-25 23:23:04,093 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[79206,79219] [2022-11-25 23:23:04,100 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[80017,80030] [2022-11-25 23:23:04,108 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[81156,81169] [2022-11-25 23:23:04,121 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[83261,83274] [2022-11-25 23:23:04,142 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[86800,86813] [2022-11-25 23:23:04,173 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[92697,92710] [2022-11-25 23:23:04,220 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[102772,102785] [2022-11-25 23:23:05,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:23:05,069 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:23:05,202 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16849,16862] [2022-11-25 23:23:05,240 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21942,21955] [2022-11-25 23:23:05,258 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23299,23312] [2022-11-25 23:23:05,275 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24107,24120] [2022-11-25 23:23:05,285 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25792,25805] [2022-11-25 23:23:05,291 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26600,26613] [2022-11-25 23:23:05,297 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27736,27749] [2022-11-25 23:23:05,310 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30390,30403] [2022-11-25 23:23:05,316 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31201,31214] [2022-11-25 23:23:05,322 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32340,32353] [2022-11-25 23:23:05,333 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34445,34458] [2022-11-25 23:23:05,369 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38533,38546] [2022-11-25 23:23:05,391 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[39344,39357] [2022-11-25 23:23:05,399 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40483,40496] [2022-11-25 23:23:05,413 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[42588,42601] [2022-11-25 23:23:05,432 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[46127,46140] [2022-11-25 23:23:05,458 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52573,52586] [2022-11-25 23:23:05,463 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[53384,53397] [2022-11-25 23:23:05,471 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[54527,54540] [2022-11-25 23:23:05,482 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[56636,56649] [2022-11-25 23:23:05,501 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60424,60437] [2022-11-25 23:23:05,534 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[67072,67085] [2022-11-25 23:23:05,586 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[79206,79219] [2022-11-25 23:23:05,592 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[80017,80030] [2022-11-25 23:23:05,598 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[81156,81169] [2022-11-25 23:23:05,610 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[83261,83274] [2022-11-25 23:23:05,626 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[86800,86813] [2022-11-25 23:23:05,652 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[92697,92710] [2022-11-25 23:23:05,691 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[102772,102785] [2022-11-25 23:23:06,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:23:06,389 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:23:06,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:06 WrapperNode [2022-11-25 23:23:06,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:23:06,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:23:06,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:23:06,393 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:23:06,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:06" (1/1) ... [2022-11-25 23:23:06,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:06" (1/1) ... [2022-11-25 23:23:06,696 INFO L138 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12087 [2022-11-25 23:23:06,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:23:06,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:23:06,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:23:06,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:23:06,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:06" (1/1) ... [2022-11-25 23:23:06,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:06" (1/1) ... [2022-11-25 23:23:06,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:06" (1/1) ... [2022-11-25 23:23:06,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:06" (1/1) ... [2022-11-25 23:23:06,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:06" (1/1) ... [2022-11-25 23:23:06,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:06" (1/1) ... [2022-11-25 23:23:06,843 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:06" (1/1) ... [2022-11-25 23:23:06,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:06" (1/1) ... [2022-11-25 23:23:06,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:23:06,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:23:06,930 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:23:06,930 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:23:06,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:06" (1/1) ... [2022-11-25 23:23:06,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:23:06,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:23:06,962 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:23:06,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0600f653-3a66-44a6-bd5a-cb3f06feb932/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:23:07,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:23:07,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:23:07,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:23:07,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:23:07,638 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:23:07,640 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:23:13,122 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:23:13,805 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:23:13,805 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:23:13,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:23:13 BoogieIcfgContainer [2022-11-25 23:23:13,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:23:13,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:23:13,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:23:13,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:23:13,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:23:02" (1/3) ... [2022-11-25 23:23:13,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5095c5e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:23:13, skipping insertion in model container [2022-11-25 23:23:13,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:23:06" (2/3) ... [2022-11-25 23:23:13,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5095c5e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:23:13, skipping insertion in model container [2022-11-25 23:23:13,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:23:13" (3/3) ... [2022-11-25 23:23:13,835 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-25 23:23:13,855 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:23:13,855 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2022-11-25 23:23:13,963 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:23:13,972 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1d02902d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:23:13,972 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-11-25 23:23:13,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 1987 states, 1957 states have (on average 1.8727644353602453) internal successors, (3665), 1986 states have internal predecessors, (3665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:14,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-25 23:23:14,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:14,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:14,017 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:23:14,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:14,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1135640583, now seen corresponding path program 1 times [2022-11-25 23:23:14,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:14,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615707606] [2022-11-25 23:23:14,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:14,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:14,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:14,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:14,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615707606] [2022-11-25 23:23:14,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615707606] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:14,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:14,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:23:14,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594682222] [2022-11-25 23:23:14,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:14,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:23:14,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:14,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:23:14,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:23:14,910 INFO L87 Difference]: Start difference. First operand has 1987 states, 1957 states have (on average 1.8727644353602453) internal successors, (3665), 1986 states have internal predecessors, (3665), 0 states have call successors, (0), 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 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:16,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:16,528 INFO L93 Difference]: Finished difference Result 2905 states and 5187 transitions. [2022-11-25 23:23:16,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:23:16,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-11-25 23:23:16,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:16,558 INFO L225 Difference]: With dead ends: 2905 [2022-11-25 23:23:16,561 INFO L226 Difference]: Without dead ends: 1485 [2022-11-25 23:23:16,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:23:16,582 INFO L413 NwaCegarLoop]: 1739 mSDtfsCounter, 7787 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7787 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:16,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7787 Valid, 1779 Invalid, 910 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 23:23:16,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2022-11-25 23:23:16,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1485. [2022-11-25 23:23:16,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 1456 states have (on average 1.3070054945054945) internal successors, (1903), 1484 states have internal predecessors, (1903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:16,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 1903 transitions. [2022-11-25 23:23:16,727 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 1903 transitions. Word has length 99 [2022-11-25 23:23:16,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:16,728 INFO L495 AbstractCegarLoop]: Abstraction has 1485 states and 1903 transitions. [2022-11-25 23:23:16,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:16,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 1903 transitions. [2022-11-25 23:23:16,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-25 23:23:16,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:16,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:16,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:23:16,733 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:23:16,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:16,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1968753033, now seen corresponding path program 1 times [2022-11-25 23:23:16,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:16,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415097616] [2022-11-25 23:23:16,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:16,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:17,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:17,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:17,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415097616] [2022-11-25 23:23:17,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415097616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:17,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:17,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:23:17,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951972857] [2022-11-25 23:23:17,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:17,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:23:17,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:17,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:23:17,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:23:17,081 INFO L87 Difference]: Start difference. First operand 1485 states and 1903 transitions. 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) [2022-11-25 23:23:18,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:18,357 INFO L93 Difference]: Finished difference Result 2397 states and 3170 transitions. [2022-11-25 23:23:18,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:23:18,358 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 [2022-11-25 23:23:18,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:18,363 INFO L225 Difference]: With dead ends: 2397 [2022-11-25 23:23:18,363 INFO L226 Difference]: Without dead ends: 1277 [2022-11-25 23:23:18,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:23:18,366 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 4843 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4843 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:18,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4843 Valid, 869 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 23:23:18,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2022-11-25 23:23:18,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1277. [2022-11-25 23:23:18,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1277 states, 1248 states have (on average 1.3317307692307692) internal successors, (1662), 1276 states have internal predecessors, (1662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:18,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1662 transitions. [2022-11-25 23:23:18,441 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1662 transitions. Word has length 100 [2022-11-25 23:23:18,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:18,443 INFO L495 AbstractCegarLoop]: Abstraction has 1277 states and 1662 transitions. [2022-11-25 23:23:18,444 INFO L496 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) [2022-11-25 23:23:18,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1662 transitions. [2022-11-25 23:23:18,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-25 23:23:18,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:18,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:18,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:23:18,450 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:23:18,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:18,455 INFO L85 PathProgramCache]: Analyzing trace with hash -703352954, now seen corresponding path program 1 times [2022-11-25 23:23:18,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:18,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579102882] [2022-11-25 23:23:18,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:18,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:18,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:18,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:18,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579102882] [2022-11-25 23:23:18,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579102882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:18,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:18,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:23:18,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050187515] [2022-11-25 23:23:18,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:18,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:23:18,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:18,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:23:18,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:23:18,741 INFO L87 Difference]: Start difference. First operand 1277 states and 1662 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) [2022-11-25 23:23:19,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:19,727 INFO L93 Difference]: Finished difference Result 2189 states and 2928 transitions. [2022-11-25 23:23:19,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:23:19,728 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 [2022-11-25 23:23:19,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:19,732 INFO L225 Difference]: With dead ends: 2189 [2022-11-25 23:23:19,732 INFO L226 Difference]: Without dead ends: 1137 [2022-11-25 23:23:19,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:23:19,740 INFO L413 NwaCegarLoop]: 798 mSDtfsCounter, 4416 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4416 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:19,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4416 Valid, 826 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 23:23:19,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2022-11-25 23:23:19,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1137. [2022-11-25 23:23:19,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 1108 states have (on average 1.358303249097473) internal successors, (1505), 1136 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:19,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1505 transitions. [2022-11-25 23:23:19,812 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1505 transitions. Word has length 101 [2022-11-25 23:23:19,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:19,812 INFO L495 AbstractCegarLoop]: Abstraction has 1137 states and 1505 transitions. [2022-11-25 23:23:19,813 INFO L496 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) [2022-11-25 23:23:19,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1505 transitions. [2022-11-25 23:23:19,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-25 23:23:19,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:19,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:19,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:23:19,816 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:23:19,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:19,817 INFO L85 PathProgramCache]: Analyzing trace with hash 472316096, now seen corresponding path program 1 times [2022-11-25 23:23:19,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:19,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547174678] [2022-11-25 23:23:19,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:19,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:20,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:20,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:20,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547174678] [2022-11-25 23:23:20,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547174678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:20,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:20,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:23:20,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319139511] [2022-11-25 23:23:20,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:20,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:23:20,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:20,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:23:20,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:23:20,051 INFO L87 Difference]: Start difference. First operand 1137 states and 1505 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) [2022-11-25 23:23:21,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:21,184 INFO L93 Difference]: Finished difference Result 2049 states and 2770 transitions. [2022-11-25 23:23:21,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:23:21,185 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 [2022-11-25 23:23:21,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:21,189 INFO L225 Difference]: With dead ends: 2049 [2022-11-25 23:23:21,189 INFO L226 Difference]: Without dead ends: 1097 [2022-11-25 23:23:21,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:23:21,191 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 4182 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4182 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:21,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4182 Valid, 658 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 23:23:21,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2022-11-25 23:23:21,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1097. [2022-11-25 23:23:21,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1097 states, 1068 states have (on average 1.3632958801498127) internal successors, (1456), 1096 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:21,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1456 transitions. [2022-11-25 23:23:21,265 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1456 transitions. Word has length 102 [2022-11-25 23:23:21,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:21,265 INFO L495 AbstractCegarLoop]: Abstraction has 1097 states and 1456 transitions. [2022-11-25 23:23:21,265 INFO L496 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) [2022-11-25 23:23:21,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1456 transitions. [2022-11-25 23:23:21,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-25 23:23:21,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:21,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:21,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:23:21,269 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:23:21,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:21,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1771013563, now seen corresponding path program 1 times [2022-11-25 23:23:21,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:21,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017581215] [2022-11-25 23:23:21,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:21,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:21,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:21,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:21,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017581215] [2022-11-25 23:23:21,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017581215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:21,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:21,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:23:21,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286963112] [2022-11-25 23:23:21,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:21,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:23:21,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:21,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:23:21,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:23:21,440 INFO L87 Difference]: Start difference. First operand 1097 states and 1456 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) [2022-11-25 23:23:22,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:22,359 INFO L93 Difference]: Finished difference Result 2009 states and 2720 transitions. [2022-11-25 23:23:22,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:23:22,360 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 [2022-11-25 23:23:22,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:22,364 INFO L225 Difference]: With dead ends: 2009 [2022-11-25 23:23:22,364 INFO L226 Difference]: Without dead ends: 1035 [2022-11-25 23:23:22,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:23:22,366 INFO L413 NwaCegarLoop]: 742 mSDtfsCounter, 4095 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4095 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:22,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4095 Valid, 754 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:23:22,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2022-11-25 23:23:22,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 1035. [2022-11-25 23:23:22,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 1006 states have (on average 1.3807157057654076) internal successors, (1389), 1034 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:22,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1389 transitions. [2022-11-25 23:23:22,438 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1389 transitions. Word has length 103 [2022-11-25 23:23:22,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:22,439 INFO L495 AbstractCegarLoop]: Abstraction has 1035 states and 1389 transitions. [2022-11-25 23:23:22,439 INFO L496 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) [2022-11-25 23:23:22,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1389 transitions. [2022-11-25 23:23:22,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-25 23:23:22,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:22,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:22,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:23:22,443 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:23:22,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:22,443 INFO L85 PathProgramCache]: Analyzing trace with hash -54343083, now seen corresponding path program 1 times [2022-11-25 23:23:22,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:22,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599161012] [2022-11-25 23:23:22,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:22,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:22,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:22,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:22,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599161012] [2022-11-25 23:23:22,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599161012] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:22,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:22,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:23:22,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008618722] [2022-11-25 23:23:22,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:22,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:23:22,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:22,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:23:22,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:23:22,605 INFO L87 Difference]: Start difference. First operand 1035 states and 1389 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) [2022-11-25 23:23:23,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:23,982 INFO L93 Difference]: Finished difference Result 2487 states and 3383 transitions. [2022-11-25 23:23:23,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:23:23,983 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 [2022-11-25 23:23:23,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:23,988 INFO L225 Difference]: With dead ends: 2487 [2022-11-25 23:23:23,988 INFO L226 Difference]: Without dead ends: 1541 [2022-11-25 23:23:23,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:23:23,991 INFO L413 NwaCegarLoop]: 742 mSDtfsCounter, 5374 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5374 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:23,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5374 Valid, 1142 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 23:23:23,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2022-11-25 23:23:24,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1439. [2022-11-25 23:23:24,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 1410 states have (on average 1.4184397163120568) internal successors, (2000), 1438 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:24,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 2000 transitions. [2022-11-25 23:23:24,161 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 2000 transitions. Word has length 104 [2022-11-25 23:23:24,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:24,162 INFO L495 AbstractCegarLoop]: Abstraction has 1439 states and 2000 transitions. [2022-11-25 23:23:24,162 INFO L496 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) [2022-11-25 23:23:24,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 2000 transitions. [2022-11-25 23:23:24,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-25 23:23:24,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:24,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:24,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:23:24,170 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:23:24,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:24,171 INFO L85 PathProgramCache]: Analyzing trace with hash 883423548, now seen corresponding path program 1 times [2022-11-25 23:23:24,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:24,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442250725] [2022-11-25 23:23:24,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:24,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:24,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:24,374 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:24,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442250725] [2022-11-25 23:23:24,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442250725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:24,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:24,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:23:24,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568974178] [2022-11-25 23:23:24,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:24,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:23:24,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:24,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:23:24,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:23:24,377 INFO L87 Difference]: Start difference. First operand 1439 states and 2000 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) [2022-11-25 23:23:25,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:25,433 INFO L93 Difference]: Finished difference Result 2789 states and 3910 transitions. [2022-11-25 23:23:25,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:23:25,434 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 [2022-11-25 23:23:25,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:25,439 INFO L225 Difference]: With dead ends: 2789 [2022-11-25 23:23:25,439 INFO L226 Difference]: Without dead ends: 1428 [2022-11-25 23:23:25,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:23:25,442 INFO L413 NwaCegarLoop]: 675 mSDtfsCounter, 3900 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3900 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:25,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3900 Valid, 711 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:23:25,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2022-11-25 23:23:25,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2022-11-25 23:23:25,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4195854181558256) internal successors, (1986), 1427 states have internal predecessors, (1986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:25,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1986 transitions. [2022-11-25 23:23:25,614 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1986 transitions. Word has length 105 [2022-11-25 23:23:25,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:25,614 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1986 transitions. [2022-11-25 23:23:25,614 INFO L496 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) [2022-11-25 23:23:25,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1986 transitions. [2022-11-25 23:23:25,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-25 23:23:25,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:25,618 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:25,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:23:25,619 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:23:25,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:25,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1511270635, now seen corresponding path program 1 times [2022-11-25 23:23:25,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:25,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738109318] [2022-11-25 23:23:25,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:25,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:26,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:26,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:26,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738109318] [2022-11-25 23:23:26,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738109318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:26,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:26,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:23:26,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555633441] [2022-11-25 23:23:26,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:26,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:23:26,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:26,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:23:26,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:23:26,147 INFO L87 Difference]: Start difference. First operand 1428 states and 1986 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 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) [2022-11-25 23:23:28,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:28,830 INFO L93 Difference]: Finished difference Result 2382 states and 3277 transitions. [2022-11-25 23:23:28,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:23:28,830 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 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 [2022-11-25 23:23:28,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:28,838 INFO L225 Difference]: With dead ends: 2382 [2022-11-25 23:23:28,838 INFO L226 Difference]: Without dead ends: 2080 [2022-11-25 23:23:28,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:23:28,841 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 6105 mSDsluCounter, 2330 mSDsCounter, 0 mSdLazyCounter, 2859 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6105 SdHoareTripleChecker+Valid, 3094 SdHoareTripleChecker+Invalid, 2863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:28,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6105 Valid, 3094 Invalid, 2863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2859 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:23:28,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2080 states. [2022-11-25 23:23:29,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2080 to 1428. [2022-11-25 23:23:29,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4188706218727662) internal successors, (1985), 1427 states have internal predecessors, (1985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:29,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1985 transitions. [2022-11-25 23:23:29,018 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1985 transitions. Word has length 106 [2022-11-25 23:23:29,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:29,019 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1985 transitions. [2022-11-25 23:23:29,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 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) [2022-11-25 23:23:29,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1985 transitions. [2022-11-25 23:23:29,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-25 23:23:29,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:29,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:29,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 23:23:29,023 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:23:29,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:29,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1798506288, now seen corresponding path program 1 times [2022-11-25 23:23:29,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:29,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117615530] [2022-11-25 23:23:29,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:29,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:29,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:29,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:29,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117615530] [2022-11-25 23:23:29,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117615530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:29,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:29,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:23:29,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70442521] [2022-11-25 23:23:29,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:29,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:23:29,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:29,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:23:29,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:23:29,501 INFO L87 Difference]: Start difference. First operand 1428 states and 1985 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 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) [2022-11-25 23:23:32,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:32,088 INFO L93 Difference]: Finished difference Result 2518 states and 3465 transitions. [2022-11-25 23:23:32,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:23:32,089 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 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 [2022-11-25 23:23:32,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:32,097 INFO L225 Difference]: With dead ends: 2518 [2022-11-25 23:23:32,097 INFO L226 Difference]: Without dead ends: 2389 [2022-11-25 23:23:32,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:23:32,100 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 3735 mSDsluCounter, 2458 mSDsCounter, 0 mSdLazyCounter, 2980 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3735 SdHoareTripleChecker+Valid, 3209 SdHoareTripleChecker+Invalid, 2984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:32,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3735 Valid, 3209 Invalid, 2984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2980 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 23:23:32,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2022-11-25 23:23:32,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 1428. [2022-11-25 23:23:32,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4181558255897069) internal successors, (1984), 1427 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:32,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1984 transitions. [2022-11-25 23:23:32,344 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1984 transitions. Word has length 106 [2022-11-25 23:23:32,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:32,345 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1984 transitions. [2022-11-25 23:23:32,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 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) [2022-11-25 23:23:32,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1984 transitions. [2022-11-25 23:23:32,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-25 23:23:32,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:32,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:32,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 23:23:32,349 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:23:32,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:32,354 INFO L85 PathProgramCache]: Analyzing trace with hash -43154195, now seen corresponding path program 1 times [2022-11-25 23:23:32,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:32,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477349848] [2022-11-25 23:23:32,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:32,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:33,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:33,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:33,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477349848] [2022-11-25 23:23:33,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477349848] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:33,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:33,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 23:23:33,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774496254] [2022-11-25 23:23:33,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:33,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 23:23:33,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:33,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 23:23:33,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-25 23:23:33,027 INFO L87 Difference]: Start difference. First operand 1428 states and 1984 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 9 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) [2022-11-25 23:23:36,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:36,018 INFO L93 Difference]: Finished difference Result 2529 states and 3483 transitions. [2022-11-25 23:23:36,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 23:23:36,018 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 9 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 [2022-11-25 23:23:36,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:36,027 INFO L225 Difference]: With dead ends: 2529 [2022-11-25 23:23:36,027 INFO L226 Difference]: Without dead ends: 2381 [2022-11-25 23:23:36,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2022-11-25 23:23:36,029 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 3847 mSDsluCounter, 3132 mSDsCounter, 0 mSdLazyCounter, 3562 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3847 SdHoareTripleChecker+Valid, 3883 SdHoareTripleChecker+Invalid, 3567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:36,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3847 Valid, 3883 Invalid, 3567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3562 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-25 23:23:36,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2022-11-25 23:23:36,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 1428. [2022-11-25 23:23:36,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4167262330235884) internal successors, (1982), 1427 states have internal predecessors, (1982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:36,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1982 transitions. [2022-11-25 23:23:36,252 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1982 transitions. Word has length 106 [2022-11-25 23:23:36,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:36,252 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1982 transitions. [2022-11-25 23:23:36,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 9 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) [2022-11-25 23:23:36,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1982 transitions. [2022-11-25 23:23:36,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-25 23:23:36,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:36,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:36,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 23:23:36,257 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:23:36,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:36,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1341044233, now seen corresponding path program 1 times [2022-11-25 23:23:36,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:36,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686001716] [2022-11-25 23:23:36,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:36,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:36,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:36,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:36,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686001716] [2022-11-25 23:23:36,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686001716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:36,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:36,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 23:23:36,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296261428] [2022-11-25 23:23:36,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:36,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:23:36,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:36,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:23:36,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:23:36,706 INFO L87 Difference]: Start difference. First operand 1428 states and 1982 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 6 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) [2022-11-25 23:23:38,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:38,636 INFO L93 Difference]: Finished difference Result 2402 states and 3194 transitions. [2022-11-25 23:23:38,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 23:23:38,636 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 6 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 [2022-11-25 23:23:38,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:38,642 INFO L225 Difference]: With dead ends: 2402 [2022-11-25 23:23:38,643 INFO L226 Difference]: Without dead ends: 1812 [2022-11-25 23:23:38,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 23:23:38,644 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 5789 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5789 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 1749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:38,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5789 Valid, 1443 Invalid, 1749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1748 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 23:23:38,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2022-11-25 23:23:38,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 1428. [2022-11-25 23:23:38,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.416011436740529) internal successors, (1981), 1427 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:38,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1981 transitions. [2022-11-25 23:23:38,859 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1981 transitions. Word has length 106 [2022-11-25 23:23:38,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:38,859 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1981 transitions. [2022-11-25 23:23:38,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 6 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) [2022-11-25 23:23:38,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1981 transitions. [2022-11-25 23:23:38,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 23:23:38,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:38,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:38,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 23:23:38,864 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:23:38,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:38,864 INFO L85 PathProgramCache]: Analyzing trace with hash -2099836846, now seen corresponding path program 1 times [2022-11-25 23:23:38,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:38,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113461329] [2022-11-25 23:23:38,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:38,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:39,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:39,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:39,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113461329] [2022-11-25 23:23:39,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113461329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:39,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:39,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:23:39,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106499685] [2022-11-25 23:23:39,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:39,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:23:39,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:39,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:23:39,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:23:39,245 INFO L87 Difference]: Start difference. First operand 1428 states and 1981 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:41,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:41,877 INFO L93 Difference]: Finished difference Result 2512 states and 3455 transitions. [2022-11-25 23:23:41,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:23:41,877 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-11-25 23:23:41,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:41,886 INFO L225 Difference]: With dead ends: 2512 [2022-11-25 23:23:41,886 INFO L226 Difference]: Without dead ends: 2389 [2022-11-25 23:23:41,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:23:41,888 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 5640 mSDsluCounter, 2465 mSDsCounter, 0 mSdLazyCounter, 2967 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5640 SdHoareTripleChecker+Valid, 3208 SdHoareTripleChecker+Invalid, 2971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:41,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5640 Valid, 3208 Invalid, 2971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2967 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 23:23:41,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2022-11-25 23:23:42,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 1428. [2022-11-25 23:23:42,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4152966404574696) internal successors, (1980), 1427 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:42,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1980 transitions. [2022-11-25 23:23:42,106 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1980 transitions. Word has length 108 [2022-11-25 23:23:42,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:42,107 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1980 transitions. [2022-11-25 23:23:42,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:42,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1980 transitions. [2022-11-25 23:23:42,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 23:23:42,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:42,111 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:42,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 23:23:42,112 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:23:42,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:42,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1707868184, now seen corresponding path program 1 times [2022-11-25 23:23:42,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:42,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254351179] [2022-11-25 23:23:42,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:42,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:42,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:42,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:42,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:42,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254351179] [2022-11-25 23:23:42,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254351179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:42,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:42,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:23:42,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941847435] [2022-11-25 23:23:42,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:42,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:23:42,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:42,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:23:42,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:23:42,532 INFO L87 Difference]: Start difference. First operand 1428 states and 1980 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:45,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:45,390 INFO L93 Difference]: Finished difference Result 2620 states and 3617 transitions. [2022-11-25 23:23:45,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:23:45,391 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-11-25 23:23:45,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:45,401 INFO L225 Difference]: With dead ends: 2620 [2022-11-25 23:23:45,401 INFO L226 Difference]: Without dead ends: 2425 [2022-11-25 23:23:45,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:23:45,404 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 5324 mSDsluCounter, 2829 mSDsCounter, 0 mSdLazyCounter, 3276 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5324 SdHoareTripleChecker+Valid, 3701 SdHoareTripleChecker+Invalid, 3280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:45,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5324 Valid, 3701 Invalid, 3280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3276 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:23:45,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2022-11-25 23:23:45,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 1428. [2022-11-25 23:23:45,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4145818441744102) internal successors, (1979), 1427 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:45,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1979 transitions. [2022-11-25 23:23:45,651 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1979 transitions. Word has length 108 [2022-11-25 23:23:45,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:45,651 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1979 transitions. [2022-11-25 23:23:45,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:45,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1979 transitions. [2022-11-25 23:23:45,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 23:23:45,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:45,656 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:45,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 23:23:45,657 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:23:45,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:45,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1111952338, now seen corresponding path program 1 times [2022-11-25 23:23:45,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:45,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909227059] [2022-11-25 23:23:45,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:45,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:46,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:46,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:46,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909227059] [2022-11-25 23:23:46,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909227059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:46,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:46,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:23:46,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236245832] [2022-11-25 23:23:46,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:46,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:23:46,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:46,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:23:46,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:23:46,151 INFO L87 Difference]: Start difference. First operand 1428 states and 1979 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:48,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:48,772 INFO L93 Difference]: Finished difference Result 2512 states and 3453 transitions. [2022-11-25 23:23:48,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:23:48,773 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-11-25 23:23:48,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:48,781 INFO L225 Difference]: With dead ends: 2512 [2022-11-25 23:23:48,781 INFO L226 Difference]: Without dead ends: 2389 [2022-11-25 23:23:48,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:23:48,783 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 3690 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 2966 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3690 SdHoareTripleChecker+Valid, 3221 SdHoareTripleChecker+Invalid, 2970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:48,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3690 Valid, 3221 Invalid, 2970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2966 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 23:23:48,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2022-11-25 23:23:49,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 1428. [2022-11-25 23:23:49,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4138670478913509) internal successors, (1978), 1427 states have internal predecessors, (1978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:49,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1978 transitions. [2022-11-25 23:23:49,027 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1978 transitions. Word has length 108 [2022-11-25 23:23:49,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:49,027 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1978 transitions. [2022-11-25 23:23:49,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:49,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1978 transitions. [2022-11-25 23:23:49,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 23:23:49,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:49,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:49,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 23:23:49,031 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:23:49,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:49,032 INFO L85 PathProgramCache]: Analyzing trace with hash -507418736, now seen corresponding path program 1 times [2022-11-25 23:23:49,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:49,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986861532] [2022-11-25 23:23:49,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:49,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:49,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:49,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:49,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986861532] [2022-11-25 23:23:49,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986861532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:49,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:49,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 23:23:49,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429963030] [2022-11-25 23:23:49,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:49,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 23:23:49,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:49,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 23:23:49,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:23:49,708 INFO L87 Difference]: Start difference. First operand 1428 states and 1978 transitions. Second operand has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:54,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:54,428 INFO L93 Difference]: Finished difference Result 3317 states and 4544 transitions. [2022-11-25 23:23:54,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:23:54,429 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-11-25 23:23:54,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:54,439 INFO L225 Difference]: With dead ends: 3317 [2022-11-25 23:23:54,439 INFO L226 Difference]: Without dead ends: 3099 [2022-11-25 23:23:54,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-25 23:23:54,441 INFO L413 NwaCegarLoop]: 1039 mSDtfsCounter, 9819 mSDsluCounter, 3333 mSDsCounter, 0 mSdLazyCounter, 4151 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9819 SdHoareTripleChecker+Valid, 4372 SdHoareTripleChecker+Invalid, 4517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 4151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:54,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9819 Valid, 4372 Invalid, 4517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 4151 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-25 23:23:54,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3099 states. [2022-11-25 23:23:54,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3099 to 1432. [2022-11-25 23:23:54,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1403 states have (on average 1.4126870990734142) internal successors, (1982), 1431 states have internal predecessors, (1982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:54,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1982 transitions. [2022-11-25 23:23:54,695 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1982 transitions. Word has length 108 [2022-11-25 23:23:54,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:54,696 INFO L495 AbstractCegarLoop]: Abstraction has 1432 states and 1982 transitions. [2022-11-25 23:23:54,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:54,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1982 transitions. [2022-11-25 23:23:54,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 23:23:54,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:54,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:54,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 23:23:54,700 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:23:54,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:54,700 INFO L85 PathProgramCache]: Analyzing trace with hash 899330884, now seen corresponding path program 1 times [2022-11-25 23:23:54,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:54,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084515255] [2022-11-25 23:23:54,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:54,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:55,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:55,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:55,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084515255] [2022-11-25 23:23:55,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084515255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:55,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:55,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:23:55,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469482716] [2022-11-25 23:23:55,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:55,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:23:55,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:55,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:23:55,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:23:55,071 INFO L87 Difference]: Start difference. First operand 1432 states and 1982 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:57,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:23:57,951 INFO L93 Difference]: Finished difference Result 2522 states and 3461 transitions. [2022-11-25 23:23:57,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:23:57,951 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-11-25 23:23:57,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:23:57,959 INFO L225 Difference]: With dead ends: 2522 [2022-11-25 23:23:57,959 INFO L226 Difference]: Without dead ends: 2393 [2022-11-25 23:23:57,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:23:57,961 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 5662 mSDsluCounter, 2472 mSDsCounter, 0 mSdLazyCounter, 2961 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5662 SdHoareTripleChecker+Valid, 3223 SdHoareTripleChecker+Invalid, 2965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:23:57,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5662 Valid, 3223 Invalid, 2965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2961 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 23:23:57,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2393 states. [2022-11-25 23:23:58,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2393 to 1432. [2022-11-25 23:23:58,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1403 states have (on average 1.4119743406985032) internal successors, (1981), 1431 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:58,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1981 transitions. [2022-11-25 23:23:58,269 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1981 transitions. Word has length 108 [2022-11-25 23:23:58,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:23:58,270 INFO L495 AbstractCegarLoop]: Abstraction has 1432 states and 1981 transitions. [2022-11-25 23:23:58,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:23:58,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1981 transitions. [2022-11-25 23:23:58,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 23:23:58,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:23:58,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:23:58,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 23:23:58,274 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:23:58,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:23:58,274 INFO L85 PathProgramCache]: Analyzing trace with hash -121651885, now seen corresponding path program 1 times [2022-11-25 23:23:58,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:23:58,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125927597] [2022-11-25 23:23:58,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:23:58,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:23:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:23:58,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:23:58,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:23:58,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125927597] [2022-11-25 23:23:58,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125927597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:23:58,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:23:58,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:23:58,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897195307] [2022-11-25 23:23:58,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:23:58,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:23:58,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:23:58,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:23:58,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:23:58,643 INFO L87 Difference]: Start difference. First operand 1432 states and 1981 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:01,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:01,524 INFO L93 Difference]: Finished difference Result 2729 states and 3762 transitions. [2022-11-25 23:24:01,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:24:01,525 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-11-25 23:24:01,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:01,530 INFO L225 Difference]: With dead ends: 2729 [2022-11-25 23:24:01,530 INFO L226 Difference]: Without dead ends: 2425 [2022-11-25 23:24:01,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:24:01,532 INFO L413 NwaCegarLoop]: 834 mSDtfsCounter, 5526 mSDsluCounter, 2624 mSDsCounter, 0 mSdLazyCounter, 3149 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5526 SdHoareTripleChecker+Valid, 3458 SdHoareTripleChecker+Invalid, 3153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:01,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5526 Valid, 3458 Invalid, 3153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3149 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 23:24:01,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2022-11-25 23:24:01,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 1432. [2022-11-25 23:24:01,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1403 states have (on average 1.4105488239486814) internal successors, (1979), 1431 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:01,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1979 transitions. [2022-11-25 23:24:01,758 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1979 transitions. Word has length 108 [2022-11-25 23:24:01,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:01,759 INFO L495 AbstractCegarLoop]: Abstraction has 1432 states and 1979 transitions. [2022-11-25 23:24:01,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:01,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1979 transitions. [2022-11-25 23:24:01,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 23:24:01,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:01,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:01,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 23:24:01,761 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:24:01,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:01,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1711979523, now seen corresponding path program 1 times [2022-11-25 23:24:01,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:01,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660917232] [2022-11-25 23:24:01,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:01,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:02,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:02,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:02,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660917232] [2022-11-25 23:24:02,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660917232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:02,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:02,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:24:02,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945685675] [2022-11-25 23:24:02,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:02,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:24:02,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:02,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:24:02,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:24:02,085 INFO L87 Difference]: Start difference. First operand 1432 states and 1979 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:04,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:04,912 INFO L93 Difference]: Finished difference Result 2541 states and 3484 transitions. [2022-11-25 23:24:04,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:24:04,913 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-11-25 23:24:04,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:04,916 INFO L225 Difference]: With dead ends: 2541 [2022-11-25 23:24:04,916 INFO L226 Difference]: Without dead ends: 2393 [2022-11-25 23:24:04,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:24:04,918 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 5666 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 2946 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5666 SdHoareTripleChecker+Valid, 3221 SdHoareTripleChecker+Invalid, 2950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:04,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5666 Valid, 3221 Invalid, 2950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2946 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 23:24:04,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2393 states. [2022-11-25 23:24:05,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2393 to 1432. [2022-11-25 23:24:05,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1403 states have (on average 1.4091233071988596) internal successors, (1977), 1431 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:05,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1977 transitions. [2022-11-25 23:24:05,159 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1977 transitions. Word has length 108 [2022-11-25 23:24:05,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:05,159 INFO L495 AbstractCegarLoop]: Abstraction has 1432 states and 1977 transitions. [2022-11-25 23:24:05,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:05,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1977 transitions. [2022-11-25 23:24:05,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 23:24:05,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:05,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:05,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 23:24:05,161 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:24:05,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:05,162 INFO L85 PathProgramCache]: Analyzing trace with hash -567046043, now seen corresponding path program 1 times [2022-11-25 23:24:05,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:05,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066659741] [2022-11-25 23:24:05,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:05,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:05,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:05,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:05,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066659741] [2022-11-25 23:24:05,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066659741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:05,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:05,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 23:24:05,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616616823] [2022-11-25 23:24:05,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:05,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 23:24:05,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:05,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 23:24:05,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:24:05,661 INFO L87 Difference]: Start difference. First operand 1432 states and 1977 transitions. Second operand has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:09,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:09,290 INFO L93 Difference]: Finished difference Result 2665 states and 3645 transitions. [2022-11-25 23:24:09,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 23:24:09,291 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-11-25 23:24:09,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:09,298 INFO L225 Difference]: With dead ends: 2665 [2022-11-25 23:24:09,298 INFO L226 Difference]: Without dead ends: 2513 [2022-11-25 23:24:09,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2022-11-25 23:24:09,303 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 5818 mSDsluCounter, 3692 mSDsCounter, 0 mSdLazyCounter, 4143 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5818 SdHoareTripleChecker+Valid, 4461 SdHoareTripleChecker+Invalid, 4152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 4143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:09,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5818 Valid, 4461 Invalid, 4152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 4143 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-25 23:24:09,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states. [2022-11-25 23:24:09,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 1454. [2022-11-25 23:24:09,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 1425 states have (on average 1.4112280701754385) internal successors, (2011), 1453 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:09,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 2011 transitions. [2022-11-25 23:24:09,589 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 2011 transitions. Word has length 108 [2022-11-25 23:24:09,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:09,590 INFO L495 AbstractCegarLoop]: Abstraction has 1454 states and 2011 transitions. [2022-11-25 23:24:09,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:09,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 2011 transitions. [2022-11-25 23:24:09,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 23:24:09,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:09,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:09,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 23:24:09,593 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:24:09,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:09,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1864936081, now seen corresponding path program 1 times [2022-11-25 23:24:09,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:09,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034426687] [2022-11-25 23:24:09,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:09,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:09,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:09,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:09,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:09,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034426687] [2022-11-25 23:24:09,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034426687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:09,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:09,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:24:09,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031484175] [2022-11-25 23:24:09,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:09,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:24:09,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:09,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:24:09,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:24:09,973 INFO L87 Difference]: Start difference. First operand 1454 states and 2011 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:12,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:12,275 INFO L93 Difference]: Finished difference Result 2124 states and 2923 transitions. [2022-11-25 23:24:12,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 23:24:12,276 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-11-25 23:24:12,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:12,278 INFO L225 Difference]: With dead ends: 2124 [2022-11-25 23:24:12,279 INFO L226 Difference]: Without dead ends: 1544 [2022-11-25 23:24:12,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2022-11-25 23:24:12,280 INFO L413 NwaCegarLoop]: 786 mSDtfsCounter, 2111 mSDsluCounter, 2629 mSDsCounter, 0 mSdLazyCounter, 3052 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2111 SdHoareTripleChecker+Valid, 3415 SdHoareTripleChecker+Invalid, 3057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:12,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2111 Valid, 3415 Invalid, 3057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3052 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 23:24:12,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2022-11-25 23:24:12,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1432. [2022-11-25 23:24:12,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1403 states have (on average 1.4076977904490378) internal successors, (1975), 1431 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:12,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1975 transitions. [2022-11-25 23:24:12,549 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1975 transitions. Word has length 108 [2022-11-25 23:24:12,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:12,549 INFO L495 AbstractCegarLoop]: Abstraction has 1432 states and 1975 transitions. [2022-11-25 23:24:12,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:12,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1975 transitions. [2022-11-25 23:24:12,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-25 23:24:12,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:12,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:12,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 23:24:12,551 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:24:12,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:12,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1029293072, now seen corresponding path program 1 times [2022-11-25 23:24:12,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:12,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972088307] [2022-11-25 23:24:12,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:12,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:12,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:12,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:12,880 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:12,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972088307] [2022-11-25 23:24:12,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972088307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:12,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:12,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:24:12,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567743330] [2022-11-25 23:24:12,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:12,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:24:12,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:12,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:24:12,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:24:12,883 INFO L87 Difference]: Start difference. First operand 1432 states and 1975 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 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) [2022-11-25 23:24:16,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:16,111 INFO L93 Difference]: Finished difference Result 2643 states and 3631 transitions. [2022-11-25 23:24:16,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:24:16,112 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 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 [2022-11-25 23:24:16,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:16,115 INFO L225 Difference]: With dead ends: 2643 [2022-11-25 23:24:16,115 INFO L226 Difference]: Without dead ends: 2425 [2022-11-25 23:24:16,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:24:16,116 INFO L413 NwaCegarLoop]: 1139 mSDtfsCounter, 4505 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 3935 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4505 SdHoareTripleChecker+Valid, 4504 SdHoareTripleChecker+Invalid, 3940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:16,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4505 Valid, 4504 Invalid, 3940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3935 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:24:16,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2022-11-25 23:24:16,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 1428. [2022-11-25 23:24:16,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4081486776268763) internal successors, (1970), 1427 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:16,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1970 transitions. [2022-11-25 23:24:16,400 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1970 transitions. Word has length 109 [2022-11-25 23:24:16,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:16,400 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1970 transitions. [2022-11-25 23:24:16,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 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) [2022-11-25 23:24:16,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1970 transitions. [2022-11-25 23:24:16,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:24:16,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:16,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:16,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 23:24:16,402 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:24:16,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:16,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1096308357, now seen corresponding path program 1 times [2022-11-25 23:24:16,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:16,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738172201] [2022-11-25 23:24:16,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:16,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:16,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:16,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:16,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738172201] [2022-11-25 23:24:16,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738172201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:16,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:16,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 23:24:16,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378115753] [2022-11-25 23:24:16,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:16,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 23:24:16,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:16,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 23:24:16,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:24:16,984 INFO L87 Difference]: Start difference. First operand 1428 states and 1970 transitions. Second operand has 11 states, 11 states have (on average 10.0) internal successors, (110), 10 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) [2022-11-25 23:24:22,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:22,468 INFO L93 Difference]: Finished difference Result 3274 states and 4477 transitions. [2022-11-25 23:24:22,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:24:22,471 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 10 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 [2022-11-25 23:24:22,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:22,474 INFO L225 Difference]: With dead ends: 3274 [2022-11-25 23:24:22,474 INFO L226 Difference]: Without dead ends: 3121 [2022-11-25 23:24:22,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-25 23:24:22,476 INFO L413 NwaCegarLoop]: 1084 mSDtfsCounter, 8494 mSDsluCounter, 3680 mSDsCounter, 0 mSdLazyCounter, 4568 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8494 SdHoareTripleChecker+Valid, 4764 SdHoareTripleChecker+Invalid, 4900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 4568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:22,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8494 Valid, 4764 Invalid, 4900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 4568 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-25 23:24:22,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3121 states. [2022-11-25 23:24:22,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3121 to 1432. [2022-11-25 23:24:22,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1403 states have (on average 1.4069850320741268) internal successors, (1974), 1431 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:22,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1974 transitions. [2022-11-25 23:24:22,817 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1974 transitions. Word has length 110 [2022-11-25 23:24:22,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:22,817 INFO L495 AbstractCegarLoop]: Abstraction has 1432 states and 1974 transitions. [2022-11-25 23:24:22,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 10 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) [2022-11-25 23:24:22,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1974 transitions. [2022-11-25 23:24:22,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:24:22,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:22,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:22,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 23:24:22,820 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:24:22,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:22,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1547475906, now seen corresponding path program 1 times [2022-11-25 23:24:22,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:22,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251791191] [2022-11-25 23:24:22,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:22,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:23,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:23,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:23,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251791191] [2022-11-25 23:24:23,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251791191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:23,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:23,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:24:23,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376086205] [2022-11-25 23:24:23,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:23,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:24:23,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:23,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:24:23,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:24:23,153 INFO L87 Difference]: Start difference. First operand 1432 states and 1974 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:24:26,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:26,180 INFO L93 Difference]: Finished difference Result 2510 states and 3435 transitions. [2022-11-25 23:24:26,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:24:26,180 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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 [2022-11-25 23:24:26,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:26,186 INFO L225 Difference]: With dead ends: 2510 [2022-11-25 23:24:26,186 INFO L226 Difference]: Without dead ends: 2393 [2022-11-25 23:24:26,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:24:26,189 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 5577 mSDsluCounter, 2481 mSDsCounter, 0 mSdLazyCounter, 2922 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5577 SdHoareTripleChecker+Valid, 3226 SdHoareTripleChecker+Invalid, 2926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:26,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5577 Valid, 3226 Invalid, 2926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2922 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 23:24:26,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2393 states. [2022-11-25 23:24:26,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2393 to 1432. [2022-11-25 23:24:26,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1403 states have (on average 1.406272273699216) internal successors, (1973), 1431 states have internal predecessors, (1973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:26,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1973 transitions. [2022-11-25 23:24:26,631 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1973 transitions. Word has length 110 [2022-11-25 23:24:26,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:26,631 INFO L495 AbstractCegarLoop]: Abstraction has 1432 states and 1973 transitions. [2022-11-25 23:24:26,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:24:26,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1973 transitions. [2022-11-25 23:24:26,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:24:26,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:26,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:26,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 23:24:26,635 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:24:26,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:26,635 INFO L85 PathProgramCache]: Analyzing trace with hash 325696877, now seen corresponding path program 1 times [2022-11-25 23:24:26,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:26,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910936310] [2022-11-25 23:24:26,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:26,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:27,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:27,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:27,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910936310] [2022-11-25 23:24:27,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910936310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:27,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:27,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:24:27,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165327489] [2022-11-25 23:24:27,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:27,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:24:27,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:27,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:24:27,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:24:27,006 INFO L87 Difference]: Start difference. First operand 1432 states and 1973 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:24:30,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:30,670 INFO L93 Difference]: Finished difference Result 2554 states and 3507 transitions. [2022-11-25 23:24:30,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:24:30,671 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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 [2022-11-25 23:24:30,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:30,675 INFO L225 Difference]: With dead ends: 2554 [2022-11-25 23:24:30,676 INFO L226 Difference]: Without dead ends: 2413 [2022-11-25 23:24:30,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:24:30,677 INFO L413 NwaCegarLoop]: 1149 mSDtfsCounter, 4295 mSDsluCounter, 3976 mSDsCounter, 0 mSdLazyCounter, 4223 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4295 SdHoareTripleChecker+Valid, 5125 SdHoareTripleChecker+Invalid, 4226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:30,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4295 Valid, 5125 Invalid, 4226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4223 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-25 23:24:30,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2022-11-25 23:24:31,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 1432. [2022-11-25 23:24:31,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1403 states have (on average 1.405559515324305) internal successors, (1972), 1431 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:31,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1972 transitions. [2022-11-25 23:24:31,119 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1972 transitions. Word has length 110 [2022-11-25 23:24:31,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:31,119 INFO L495 AbstractCegarLoop]: Abstraction has 1432 states and 1972 transitions. [2022-11-25 23:24:31,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:24:31,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1972 transitions. [2022-11-25 23:24:31,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:24:31,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:31,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:31,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-25 23:24:31,122 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:24:31,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:31,123 INFO L85 PathProgramCache]: Analyzing trace with hash -583741300, now seen corresponding path program 1 times [2022-11-25 23:24:31,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:31,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646553999] [2022-11-25 23:24:31,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:31,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:31,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:31,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:31,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:31,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646553999] [2022-11-25 23:24:31,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646553999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:31,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:31,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:24:31,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303984612] [2022-11-25 23:24:31,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:31,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:24:31,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:31,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:24:31,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:24:31,434 INFO L87 Difference]: Start difference. First operand 1432 states and 1972 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:24:34,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:34,572 INFO L93 Difference]: Finished difference Result 2522 states and 3448 transitions. [2022-11-25 23:24:34,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:24:34,572 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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 [2022-11-25 23:24:34,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:34,576 INFO L225 Difference]: With dead ends: 2522 [2022-11-25 23:24:34,576 INFO L226 Difference]: Without dead ends: 2393 [2022-11-25 23:24:34,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:24:34,577 INFO L413 NwaCegarLoop]: 778 mSDtfsCounter, 5465 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 3040 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5465 SdHoareTripleChecker+Valid, 3334 SdHoareTripleChecker+Invalid, 3044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:34,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5465 Valid, 3334 Invalid, 3044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3040 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 23:24:34,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2393 states. [2022-11-25 23:24:34,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2393 to 1432. [2022-11-25 23:24:34,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1403 states have (on average 1.404846756949394) internal successors, (1971), 1431 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:34,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1971 transitions. [2022-11-25 23:24:34,922 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1971 transitions. Word has length 110 [2022-11-25 23:24:34,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:34,922 INFO L495 AbstractCegarLoop]: Abstraction has 1432 states and 1971 transitions. [2022-11-25 23:24:34,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:24:34,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1971 transitions. [2022-11-25 23:24:34,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:24:34,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:34,924 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:34,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-25 23:24:34,925 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:24:34,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:34,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1881631338, now seen corresponding path program 1 times [2022-11-25 23:24:34,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:34,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632341438] [2022-11-25 23:24:34,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:34,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:35,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:35,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:35,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632341438] [2022-11-25 23:24:35,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632341438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:35,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:35,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 23:24:35,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035200498] [2022-11-25 23:24:35,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:35,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 23:24:35,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:35,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 23:24:35,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:24:35,476 INFO L87 Difference]: Start difference. First operand 1432 states and 1971 transitions. Second operand has 11 states, 11 states have (on average 10.0) internal successors, (110), 10 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) [2022-11-25 23:24:41,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:41,323 INFO L93 Difference]: Finished difference Result 3304 states and 4504 transitions. [2022-11-25 23:24:41,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:24:41,324 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 10 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 [2022-11-25 23:24:41,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:41,328 INFO L225 Difference]: With dead ends: 3304 [2022-11-25 23:24:41,328 INFO L226 Difference]: Without dead ends: 3136 [2022-11-25 23:24:41,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-25 23:24:41,330 INFO L413 NwaCegarLoop]: 1063 mSDtfsCounter, 8662 mSDsluCounter, 3593 mSDsCounter, 0 mSdLazyCounter, 4423 mSolverCounterSat, 343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8662 SdHoareTripleChecker+Valid, 4656 SdHoareTripleChecker+Invalid, 4766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 4423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:41,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8662 Valid, 4656 Invalid, 4766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [343 Valid, 4423 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-25 23:24:41,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3136 states. [2022-11-25 23:24:41,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3136 to 1436. [2022-11-25 23:24:41,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1407 states have (on average 1.4036958066808813) internal successors, (1975), 1435 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:41,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1975 transitions. [2022-11-25 23:24:41,824 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1975 transitions. Word has length 110 [2022-11-25 23:24:41,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:41,825 INFO L495 AbstractCegarLoop]: Abstraction has 1436 states and 1975 transitions. [2022-11-25 23:24:41,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 10 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) [2022-11-25 23:24:41,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1975 transitions. [2022-11-25 23:24:41,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:24:41,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:41,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:41,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-25 23:24:41,828 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:24:41,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:41,829 INFO L85 PathProgramCache]: Analyzing trace with hash 169130540, now seen corresponding path program 1 times [2022-11-25 23:24:41,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:41,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251340210] [2022-11-25 23:24:41,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:41,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:42,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:42,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:42,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251340210] [2022-11-25 23:24:42,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251340210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:42,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:42,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:24:42,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404176309] [2022-11-25 23:24:42,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:42,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:24:42,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:42,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:24:42,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:24:42,131 INFO L87 Difference]: Start difference. First operand 1436 states and 1975 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:24:45,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:45,511 INFO L93 Difference]: Finished difference Result 2465 states and 3353 transitions. [2022-11-25 23:24:45,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:24:45,512 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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 [2022-11-25 23:24:45,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:45,515 INFO L225 Difference]: With dead ends: 2465 [2022-11-25 23:24:45,515 INFO L226 Difference]: Without dead ends: 2349 [2022-11-25 23:24:45,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:24:45,516 INFO L413 NwaCegarLoop]: 879 mSDtfsCounter, 3359 mSDsluCounter, 2765 mSDsCounter, 0 mSdLazyCounter, 3426 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3359 SdHoareTripleChecker+Valid, 3644 SdHoareTripleChecker+Invalid, 3430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:45,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3359 Valid, 3644 Invalid, 3430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3426 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 23:24:45,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2022-11-25 23:24:45,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 1436. [2022-11-25 23:24:45,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1407 states have (on average 1.4029850746268657) internal successors, (1974), 1435 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:45,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1974 transitions. [2022-11-25 23:24:45,932 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1974 transitions. Word has length 110 [2022-11-25 23:24:45,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:45,932 INFO L495 AbstractCegarLoop]: Abstraction has 1436 states and 1974 transitions. [2022-11-25 23:24:45,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:24:45,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1974 transitions. [2022-11-25 23:24:45,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:24:45,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:45,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:45,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-25 23:24:45,934 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:24:45,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:45,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1683197661, now seen corresponding path program 1 times [2022-11-25 23:24:45,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:45,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372243608] [2022-11-25 23:24:45,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:45,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:46,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:46,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:46,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372243608] [2022-11-25 23:24:46,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372243608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:46,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:46,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:24:46,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419076843] [2022-11-25 23:24:46,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:46,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:24:46,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:46,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:24:46,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:24:46,279 INFO L87 Difference]: Start difference. First operand 1436 states and 1974 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:24:49,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:49,966 INFO L93 Difference]: Finished difference Result 2562 states and 3509 transitions. [2022-11-25 23:24:49,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:24:49,967 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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 [2022-11-25 23:24:49,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:49,969 INFO L225 Difference]: With dead ends: 2562 [2022-11-25 23:24:49,969 INFO L226 Difference]: Without dead ends: 2413 [2022-11-25 23:24:49,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:24:49,971 INFO L413 NwaCegarLoop]: 1013 mSDtfsCounter, 4389 mSDsluCounter, 3719 mSDsCounter, 0 mSdLazyCounter, 3875 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4389 SdHoareTripleChecker+Valid, 4732 SdHoareTripleChecker+Invalid, 3880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:49,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4389 Valid, 4732 Invalid, 3880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3875 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-25 23:24:49,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2022-11-25 23:24:50,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 1436. [2022-11-25 23:24:50,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1407 states have (on average 1.40227434257285) internal successors, (1973), 1435 states have internal predecessors, (1973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:50,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1973 transitions. [2022-11-25 23:24:50,366 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1973 transitions. Word has length 110 [2022-11-25 23:24:50,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:50,366 INFO L495 AbstractCegarLoop]: Abstraction has 1436 states and 1973 transitions. [2022-11-25 23:24:50,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:24:50,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1973 transitions. [2022-11-25 23:24:50,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:24:50,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:50,369 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:50,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-25 23:24:50,369 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:24:50,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:50,370 INFO L85 PathProgramCache]: Analyzing trace with hash 656800929, now seen corresponding path program 1 times [2022-11-25 23:24:50,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:50,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794788867] [2022-11-25 23:24:50,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:50,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:50,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:50,675 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:50,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794788867] [2022-11-25 23:24:50,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794788867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:50,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:50,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:24:50,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182225845] [2022-11-25 23:24:50,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:50,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:24:50,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:50,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:24:50,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:24:50,677 INFO L87 Difference]: Start difference. First operand 1436 states and 1973 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:24:54,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:54,065 INFO L93 Difference]: Finished difference Result 2516 states and 3435 transitions. [2022-11-25 23:24:54,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:24:54,066 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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 [2022-11-25 23:24:54,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:54,068 INFO L225 Difference]: With dead ends: 2516 [2022-11-25 23:24:54,068 INFO L226 Difference]: Without dead ends: 2397 [2022-11-25 23:24:54,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:24:54,069 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 3466 mSDsluCounter, 2670 mSDsCounter, 0 mSdLazyCounter, 3146 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3466 SdHoareTripleChecker+Valid, 3481 SdHoareTripleChecker+Invalid, 3150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:54,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3466 Valid, 3481 Invalid, 3150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3146 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 23:24:54,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2397 states. [2022-11-25 23:24:54,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2397 to 1436. [2022-11-25 23:24:54,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1407 states have (on average 1.4015636105188345) internal successors, (1972), 1435 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:54,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1972 transitions. [2022-11-25 23:24:54,464 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1972 transitions. Word has length 110 [2022-11-25 23:24:54,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:54,464 INFO L495 AbstractCegarLoop]: Abstraction has 1436 states and 1972 transitions. [2022-11-25 23:24:54,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:24:54,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1972 transitions. [2022-11-25 23:24:54,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:24:54,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:54,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:54,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-25 23:24:54,466 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:24:54,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:54,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1204907087, now seen corresponding path program 1 times [2022-11-25 23:24:54,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:54,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499562795] [2022-11-25 23:24:54,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:54,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:54,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:55,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:55,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:55,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499562795] [2022-11-25 23:24:55,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499562795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:55,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:55,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 23:24:55,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046615147] [2022-11-25 23:24:55,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:55,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 23:24:55,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:55,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 23:24:55,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:24:55,018 INFO L87 Difference]: Start difference. First operand 1436 states and 1972 transitions. Second operand has 11 states, 11 states have (on average 10.0) internal successors, (110), 10 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) [2022-11-25 23:25:01,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:01,488 INFO L93 Difference]: Finished difference Result 3387 states and 4620 transitions. [2022-11-25 23:25:01,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:25:01,488 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 10 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 [2022-11-25 23:25:01,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:01,491 INFO L225 Difference]: With dead ends: 3387 [2022-11-25 23:25:01,491 INFO L226 Difference]: Without dead ends: 3185 [2022-11-25 23:25:01,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-25 23:25:01,492 INFO L413 NwaCegarLoop]: 1010 mSDtfsCounter, 8855 mSDsluCounter, 4427 mSDsCounter, 0 mSdLazyCounter, 5194 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8855 SdHoareTripleChecker+Valid, 5437 SdHoareTripleChecker+Invalid, 5552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 5194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:01,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8855 Valid, 5437 Invalid, 5552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 5194 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-25 23:25:01,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3185 states. [2022-11-25 23:25:01,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3185 to 1444. [2022-11-25 23:25:01,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1415 states have (on average 1.3992932862190812) internal successors, (1980), 1443 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:01,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1980 transitions. [2022-11-25 23:25:01,879 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1980 transitions. Word has length 110 [2022-11-25 23:25:01,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:01,879 INFO L495 AbstractCegarLoop]: Abstraction has 1444 states and 1980 transitions. [2022-11-25 23:25:01,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 10 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) [2022-11-25 23:25:01,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1980 transitions. [2022-11-25 23:25:01,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:25:01,882 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:01,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:01,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-25 23:25:01,882 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:25:01,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:01,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1039298331, now seen corresponding path program 1 times [2022-11-25 23:25:01,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:01,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294121107] [2022-11-25 23:25:01,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:01,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:02,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:02,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:02,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294121107] [2022-11-25 23:25:02,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294121107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:02,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:02,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:25:02,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937549201] [2022-11-25 23:25:02,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:02,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:25:02,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:02,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:25:02,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:25:02,230 INFO L87 Difference]: Start difference. First operand 1444 states and 1980 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:25:05,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:05,944 INFO L93 Difference]: Finished difference Result 2609 states and 3575 transitions. [2022-11-25 23:25:05,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:25:05,945 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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 [2022-11-25 23:25:05,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:05,947 INFO L225 Difference]: With dead ends: 2609 [2022-11-25 23:25:05,947 INFO L226 Difference]: Without dead ends: 2413 [2022-11-25 23:25:05,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:25:05,949 INFO L413 NwaCegarLoop]: 931 mSDtfsCounter, 4408 mSDsluCounter, 3573 mSDsCounter, 0 mSdLazyCounter, 3737 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4408 SdHoareTripleChecker+Valid, 4504 SdHoareTripleChecker+Invalid, 3742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:05,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4408 Valid, 4504 Invalid, 3742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3737 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:25:05,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2022-11-25 23:25:06,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 1444. [2022-11-25 23:25:06,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1415 states have (on average 1.3978798586572438) internal successors, (1978), 1443 states have internal predecessors, (1978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:06,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1978 transitions. [2022-11-25 23:25:06,347 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1978 transitions. Word has length 110 [2022-11-25 23:25:06,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:06,348 INFO L495 AbstractCegarLoop]: Abstraction has 1444 states and 1978 transitions. [2022-11-25 23:25:06,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:25:06,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1978 transitions. [2022-11-25 23:25:06,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:25:06,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:06,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:06,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-25 23:25:06,350 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:25:06,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:06,350 INFO L85 PathProgramCache]: Analyzing trace with hash -550740200, now seen corresponding path program 1 times [2022-11-25 23:25:06,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:06,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061854541] [2022-11-25 23:25:06,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:06,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:06,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:06,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:06,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061854541] [2022-11-25 23:25:06,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061854541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:06,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:06,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:25:06,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618937846] [2022-11-25 23:25:06,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:06,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:25:06,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:06,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:25:06,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:25:06,665 INFO L87 Difference]: Start difference. First operand 1444 states and 1978 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:25:10,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:10,184 INFO L93 Difference]: Finished difference Result 2547 states and 3475 transitions. [2022-11-25 23:25:10,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:25:10,184 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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 [2022-11-25 23:25:10,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:10,186 INFO L225 Difference]: With dead ends: 2547 [2022-11-25 23:25:10,186 INFO L226 Difference]: Without dead ends: 2405 [2022-11-25 23:25:10,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:25:10,187 INFO L413 NwaCegarLoop]: 846 mSDtfsCounter, 5180 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 3262 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5180 SdHoareTripleChecker+Valid, 3612 SdHoareTripleChecker+Invalid, 3266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:10,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5180 Valid, 3612 Invalid, 3266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3262 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 23:25:10,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2022-11-25 23:25:10,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 1444. [2022-11-25 23:25:10,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1415 states have (on average 1.3964664310954065) internal successors, (1976), 1443 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:10,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1976 transitions. [2022-11-25 23:25:10,597 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1976 transitions. Word has length 110 [2022-11-25 23:25:10,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:10,598 INFO L495 AbstractCegarLoop]: Abstraction has 1444 states and 1976 transitions. [2022-11-25 23:25:10,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:25:10,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1976 transitions. [2022-11-25 23:25:10,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:25:10,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:10,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:10,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-25 23:25:10,600 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:25:10,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:10,600 INFO L85 PathProgramCache]: Analyzing trace with hash 915039500, now seen corresponding path program 1 times [2022-11-25 23:25:10,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:10,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899141474] [2022-11-25 23:25:10,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:10,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:10,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:10,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:10,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899141474] [2022-11-25 23:25:10,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899141474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:10,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:10,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:25:10,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701678821] [2022-11-25 23:25:10,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:10,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:25:10,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:10,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:25:10,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:25:10,884 INFO L87 Difference]: Start difference. First operand 1444 states and 1976 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:25:14,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:14,436 INFO L93 Difference]: Finished difference Result 2557 states and 3484 transitions. [2022-11-25 23:25:14,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:25:14,437 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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 [2022-11-25 23:25:14,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:14,439 INFO L225 Difference]: With dead ends: 2557 [2022-11-25 23:25:14,439 INFO L226 Difference]: Without dead ends: 2405 [2022-11-25 23:25:14,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:25:14,441 INFO L413 NwaCegarLoop]: 846 mSDtfsCounter, 3412 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 3256 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3412 SdHoareTripleChecker+Valid, 3606 SdHoareTripleChecker+Invalid, 3260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:14,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3412 Valid, 3606 Invalid, 3260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3256 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 23:25:14,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2022-11-25 23:25:14,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 1444. [2022-11-25 23:25:14,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1415 states have (on average 1.3950530035335689) internal successors, (1974), 1443 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:14,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1974 transitions. [2022-11-25 23:25:14,880 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1974 transitions. Word has length 110 [2022-11-25 23:25:14,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:14,880 INFO L495 AbstractCegarLoop]: Abstraction has 1444 states and 1974 transitions. [2022-11-25 23:25:14,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:25:14,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1974 transitions. [2022-11-25 23:25:14,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:25:14,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:14,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:14,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-25 23:25:14,883 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:25:14,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:14,884 INFO L85 PathProgramCache]: Analyzing trace with hash -382850538, now seen corresponding path program 1 times [2022-11-25 23:25:14,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:14,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894507558] [2022-11-25 23:25:14,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:14,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:15,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:15,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:15,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894507558] [2022-11-25 23:25:15,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894507558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:15,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:15,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:25:15,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081160267] [2022-11-25 23:25:15,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:15,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:25:15,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:15,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:25:15,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:25:15,159 INFO L87 Difference]: Start difference. First operand 1444 states and 1974 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:25:18,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:18,769 INFO L93 Difference]: Finished difference Result 2483 states and 3365 transitions. [2022-11-25 23:25:18,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:25:18,770 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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 [2022-11-25 23:25:18,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:18,772 INFO L225 Difference]: With dead ends: 2483 [2022-11-25 23:25:18,772 INFO L226 Difference]: Without dead ends: 2357 [2022-11-25 23:25:18,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:25:18,773 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 3311 mSDsluCounter, 2870 mSDsCounter, 0 mSdLazyCounter, 3477 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3311 SdHoareTripleChecker+Valid, 3768 SdHoareTripleChecker+Invalid, 3481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:18,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3311 Valid, 3768 Invalid, 3481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3477 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 23:25:18,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2357 states. [2022-11-25 23:25:19,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2357 to 1444. [2022-11-25 23:25:19,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1415 states have (on average 1.3936395759717315) internal successors, (1972), 1443 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:19,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1972 transitions. [2022-11-25 23:25:19,176 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1972 transitions. Word has length 110 [2022-11-25 23:25:19,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:19,176 INFO L495 AbstractCegarLoop]: Abstraction has 1444 states and 1972 transitions. [2022-11-25 23:25:19,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:25:19,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1972 transitions. [2022-11-25 23:25:19,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:25:19,178 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:19,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:19,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-25 23:25:19,178 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:25:19,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:19,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1938191792, now seen corresponding path program 1 times [2022-11-25 23:25:19,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:19,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724225399] [2022-11-25 23:25:19,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:19,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:19,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:19,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:19,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724225399] [2022-11-25 23:25:19,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724225399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:19,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:19,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:25:19,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417014816] [2022-11-25 23:25:19,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:19,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:25:19,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:19,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:25:19,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:25:19,467 INFO L87 Difference]: Start difference. First operand 1444 states and 1972 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:25:23,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:23,035 INFO L93 Difference]: Finished difference Result 2565 states and 3486 transitions. [2022-11-25 23:25:23,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:25:23,035 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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 [2022-11-25 23:25:23,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:23,037 INFO L225 Difference]: With dead ends: 2565 [2022-11-25 23:25:23,037 INFO L226 Difference]: Without dead ends: 2405 [2022-11-25 23:25:23,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:25:23,039 INFO L413 NwaCegarLoop]: 846 mSDtfsCounter, 3506 mSDsluCounter, 2741 mSDsCounter, 0 mSdLazyCounter, 3245 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3506 SdHoareTripleChecker+Valid, 3587 SdHoareTripleChecker+Invalid, 3249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:23,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3506 Valid, 3587 Invalid, 3249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3245 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 23:25:23,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2022-11-25 23:25:23,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 1444. [2022-11-25 23:25:23,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1415 states have (on average 1.392226148409894) internal successors, (1970), 1443 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:23,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1970 transitions. [2022-11-25 23:25:23,477 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1970 transitions. Word has length 110 [2022-11-25 23:25:23,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:23,477 INFO L495 AbstractCegarLoop]: Abstraction has 1444 states and 1970 transitions. [2022-11-25 23:25:23,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:25:23,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1970 transitions. [2022-11-25 23:25:23,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:25:23,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:23,480 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:23,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-25 23:25:23,480 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:25:23,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:23,481 INFO L85 PathProgramCache]: Analyzing trace with hash -715976179, now seen corresponding path program 1 times [2022-11-25 23:25:23,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:23,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972047321] [2022-11-25 23:25:23,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:23,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:23,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:23,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:23,703 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:23,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972047321] [2022-11-25 23:25:23,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972047321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:23,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:23,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:25:23,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062116327] [2022-11-25 23:25:23,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:23,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:25:23,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:23,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:25:23,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:25:23,705 INFO L87 Difference]: Start difference. First operand 1444 states and 1970 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:25:27,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:27,210 INFO L93 Difference]: Finished difference Result 2573 states and 3488 transitions. [2022-11-25 23:25:27,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:25:27,211 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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 [2022-11-25 23:25:27,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:27,214 INFO L225 Difference]: With dead ends: 2573 [2022-11-25 23:25:27,214 INFO L226 Difference]: Without dead ends: 2405 [2022-11-25 23:25:27,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:25:27,215 INFO L413 NwaCegarLoop]: 830 mSDtfsCounter, 5451 mSDsluCounter, 2690 mSDsCounter, 0 mSdLazyCounter, 3102 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5451 SdHoareTripleChecker+Valid, 3520 SdHoareTripleChecker+Invalid, 3107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:27,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5451 Valid, 3520 Invalid, 3107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3102 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 23:25:27,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2022-11-25 23:25:27,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 1444. [2022-11-25 23:25:27,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1415 states have (on average 1.3908127208480565) internal successors, (1968), 1443 states have internal predecessors, (1968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:27,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1968 transitions. [2022-11-25 23:25:27,648 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1968 transitions. Word has length 110 [2022-11-25 23:25:27,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:27,649 INFO L495 AbstractCegarLoop]: Abstraction has 1444 states and 1968 transitions. [2022-11-25 23:25:27,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 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) [2022-11-25 23:25:27,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1968 transitions. [2022-11-25 23:25:27,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:25:27,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:27,650 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:27,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-25 23:25:27,651 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:25:27,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:27,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1704380587, now seen corresponding path program 1 times [2022-11-25 23:25:27,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:27,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189772816] [2022-11-25 23:25:27,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:27,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:28,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:28,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:28,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189772816] [2022-11-25 23:25:28,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189772816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:28,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:28,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 23:25:28,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857898897] [2022-11-25 23:25:28,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:28,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 23:25:28,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:28,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 23:25:28,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:25:28,161 INFO L87 Difference]: Start difference. First operand 1444 states and 1968 transitions. Second operand has 11 states, 11 states have (on average 10.0) internal successors, (110), 10 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) [2022-11-25 23:25:35,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:35,529 INFO L93 Difference]: Finished difference Result 3637 states and 4931 transitions. [2022-11-25 23:25:35,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:25:35,529 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 10 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 [2022-11-25 23:25:35,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:35,532 INFO L225 Difference]: With dead ends: 3637 [2022-11-25 23:25:35,532 INFO L226 Difference]: Without dead ends: 3279 [2022-11-25 23:25:35,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-25 23:25:35,533 INFO L413 NwaCegarLoop]: 1295 mSDtfsCounter, 8235 mSDsluCounter, 5220 mSDsCounter, 0 mSdLazyCounter, 5969 mSolverCounterSat, 312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8235 SdHoareTripleChecker+Valid, 6515 SdHoareTripleChecker+Invalid, 6281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 5969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:35,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8235 Valid, 6515 Invalid, 6281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [312 Valid, 5969 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-25 23:25:35,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2022-11-25 23:25:36,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 1452. [2022-11-25 23:25:36,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1423 states have (on average 1.3886156008432888) internal successors, (1976), 1451 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:36,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 1976 transitions. [2022-11-25 23:25:36,018 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 1976 transitions. Word has length 110 [2022-11-25 23:25:36,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:36,018 INFO L495 AbstractCegarLoop]: Abstraction has 1452 states and 1976 transitions. [2022-11-25 23:25:36,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 10 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) [2022-11-25 23:25:36,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 1976 transitions. [2022-11-25 23:25:36,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-25 23:25:36,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:36,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:36,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-25 23:25:36,021 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:25:36,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:36,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1240840734, now seen corresponding path program 1 times [2022-11-25 23:25:36,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:36,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217907704] [2022-11-25 23:25:36,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:36,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:36,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:36,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:36,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217907704] [2022-11-25 23:25:36,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217907704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:36,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:36,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:25:36,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852416694] [2022-11-25 23:25:36,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:36,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:25:36,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:36,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:25:36,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:25:36,276 INFO L87 Difference]: Start difference. First operand 1452 states and 1976 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 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) [2022-11-25 23:25:40,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:40,188 INFO L93 Difference]: Finished difference Result 2574 states and 3506 transitions. [2022-11-25 23:25:40,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:25:40,189 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 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 [2022-11-25 23:25:40,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:40,217 INFO L225 Difference]: With dead ends: 2574 [2022-11-25 23:25:40,217 INFO L226 Difference]: Without dead ends: 2421 [2022-11-25 23:25:40,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:25:40,218 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 5077 mSDsluCounter, 2878 mSDsCounter, 0 mSdLazyCounter, 3412 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5077 SdHoareTripleChecker+Valid, 3803 SdHoareTripleChecker+Invalid, 3417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:40,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5077 Valid, 3803 Invalid, 3417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3412 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 23:25:40,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2022-11-25 23:25:40,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 1448. [2022-11-25 23:25:40,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1419 states have (on average 1.3890063424947146) internal successors, (1971), 1447 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:40,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1971 transitions. [2022-11-25 23:25:40,674 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1971 transitions. Word has length 111 [2022-11-25 23:25:40,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:40,674 INFO L495 AbstractCegarLoop]: Abstraction has 1448 states and 1971 transitions. [2022-11-25 23:25:40,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 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) [2022-11-25 23:25:40,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1971 transitions. [2022-11-25 23:25:40,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-25 23:25:40,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:40,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:40,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-25 23:25:40,677 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:25:40,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:40,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1240220365, now seen corresponding path program 1 times [2022-11-25 23:25:40,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:40,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898953720] [2022-11-25 23:25:40,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:40,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:40,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:40,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:40,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898953720] [2022-11-25 23:25:40,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898953720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:40,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:40,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:25:40,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508479518] [2022-11-25 23:25:40,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:40,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:25:40,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:40,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:25:40,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:25:40,965 INFO L87 Difference]: Start difference. First operand 1448 states and 1971 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 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) [2022-11-25 23:25:44,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:44,852 INFO L93 Difference]: Finished difference Result 2467 states and 3335 transitions. [2022-11-25 23:25:44,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:25:44,853 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 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 [2022-11-25 23:25:44,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:44,856 INFO L225 Difference]: With dead ends: 2467 [2022-11-25 23:25:44,856 INFO L226 Difference]: Without dead ends: 2361 [2022-11-25 23:25:44,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:25:44,857 INFO L413 NwaCegarLoop]: 948 mSDtfsCounter, 4683 mSDsluCounter, 3044 mSDsCounter, 0 mSdLazyCounter, 3580 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4683 SdHoareTripleChecker+Valid, 3992 SdHoareTripleChecker+Invalid, 3584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:44,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4683 Valid, 3992 Invalid, 3584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3580 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 23:25:44,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2361 states. [2022-11-25 23:25:45,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2361 to 1448. [2022-11-25 23:25:45,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1419 states have (on average 1.3883016208597605) internal successors, (1970), 1447 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:45,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1970 transitions. [2022-11-25 23:25:45,343 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1970 transitions. Word has length 111 [2022-11-25 23:25:45,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:45,343 INFO L495 AbstractCegarLoop]: Abstraction has 1448 states and 1970 transitions. [2022-11-25 23:25:45,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 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) [2022-11-25 23:25:45,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1970 transitions. [2022-11-25 23:25:45,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-25 23:25:45,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:45,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:45,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-25 23:25:45,345 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:25:45,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:45,346 INFO L85 PathProgramCache]: Analyzing trace with hash 78610759, now seen corresponding path program 1 times [2022-11-25 23:25:45,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:45,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850798699] [2022-11-25 23:25:45,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:45,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:45,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:45,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:45,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850798699] [2022-11-25 23:25:45,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850798699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:45,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:45,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:25:45,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166723941] [2022-11-25 23:25:45,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:45,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:25:45,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:45,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:25:45,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:25:45,579 INFO L87 Difference]: Start difference. First operand 1448 states and 1970 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 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) [2022-11-25 23:25:49,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:49,510 INFO L93 Difference]: Finished difference Result 2589 states and 3520 transitions. [2022-11-25 23:25:49,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:25:49,511 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 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 [2022-11-25 23:25:49,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:49,514 INFO L225 Difference]: With dead ends: 2589 [2022-11-25 23:25:49,514 INFO L226 Difference]: Without dead ends: 2421 [2022-11-25 23:25:49,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:25:49,515 INFO L413 NwaCegarLoop]: 986 mSDtfsCounter, 4823 mSDsluCounter, 3042 mSDsCounter, 0 mSdLazyCounter, 3557 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4823 SdHoareTripleChecker+Valid, 4028 SdHoareTripleChecker+Invalid, 3561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:49,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4823 Valid, 4028 Invalid, 3561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3557 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:25:49,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2022-11-25 23:25:49,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 1444. [2022-11-25 23:25:49,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1415 states have (on average 1.3886925795053005) internal successors, (1965), 1443 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:49,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1965 transitions. [2022-11-25 23:25:49,997 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1965 transitions. Word has length 111 [2022-11-25 23:25:49,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:49,998 INFO L495 AbstractCegarLoop]: Abstraction has 1444 states and 1965 transitions. [2022-11-25 23:25:49,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 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) [2022-11-25 23:25:49,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1965 transitions. [2022-11-25 23:25:49,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-25 23:25:49,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:49,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:49,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-25 23:25:50,000 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:25:50,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:50,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1272020528, now seen corresponding path program 1 times [2022-11-25 23:25:50,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:50,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159852453] [2022-11-25 23:25:50,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:50,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:50,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:50,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:50,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159852453] [2022-11-25 23:25:50,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159852453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:50,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:50,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:25:50,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655714605] [2022-11-25 23:25:50,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:50,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:25:50,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:50,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:25:50,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:25:50,225 INFO L87 Difference]: Start difference. First operand 1444 states and 1965 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 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) [2022-11-25 23:25:54,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:54,317 INFO L93 Difference]: Finished difference Result 2623 states and 3568 transitions. [2022-11-25 23:25:54,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:25:54,318 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 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 [2022-11-25 23:25:54,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:54,320 INFO L225 Difference]: With dead ends: 2623 [2022-11-25 23:25:54,321 INFO L226 Difference]: Without dead ends: 2421 [2022-11-25 23:25:54,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:25:54,322 INFO L413 NwaCegarLoop]: 1031 mSDtfsCounter, 3140 mSDsluCounter, 3181 mSDsCounter, 0 mSdLazyCounter, 3686 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3140 SdHoareTripleChecker+Valid, 4212 SdHoareTripleChecker+Invalid, 3690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:54,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3140 Valid, 4212 Invalid, 3690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3686 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:25:54,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2022-11-25 23:25:54,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 1436. [2022-11-25 23:25:54,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1407 states have (on average 1.3894811656005686) internal successors, (1955), 1435 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:54,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1955 transitions. [2022-11-25 23:25:54,816 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1955 transitions. Word has length 111 [2022-11-25 23:25:54,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:54,817 INFO L495 AbstractCegarLoop]: Abstraction has 1436 states and 1955 transitions. [2022-11-25 23:25:54,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 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) [2022-11-25 23:25:54,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1955 transitions. [2022-11-25 23:25:54,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-25 23:25:54,818 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:54,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:54,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-25 23:25:54,818 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:25:54,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:54,819 INFO L85 PathProgramCache]: Analyzing trace with hash 959199080, now seen corresponding path program 1 times [2022-11-25 23:25:54,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:54,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134632611] [2022-11-25 23:25:54,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:54,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:54,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:55,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:55,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:55,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134632611] [2022-11-25 23:25:55,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134632611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:55,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:55,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:25:55,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936310736] [2022-11-25 23:25:55,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:55,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:25:55,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:55,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:25:55,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:25:55,027 INFO L87 Difference]: Start difference. First operand 1436 states and 1955 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 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) [2022-11-25 23:25:59,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:59,188 INFO L93 Difference]: Finished difference Result 2783 states and 3781 transitions. [2022-11-25 23:25:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:25:59,189 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 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 [2022-11-25 23:25:59,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:59,191 INFO L225 Difference]: With dead ends: 2783 [2022-11-25 23:25:59,191 INFO L226 Difference]: Without dead ends: 2425 [2022-11-25 23:25:59,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:25:59,192 INFO L413 NwaCegarLoop]: 1139 mSDtfsCounter, 4466 mSDsluCounter, 3265 mSDsCounter, 0 mSdLazyCounter, 3802 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4466 SdHoareTripleChecker+Valid, 4404 SdHoareTripleChecker+Invalid, 3806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:59,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4466 Valid, 4404 Invalid, 3806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3802 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:25:59,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2022-11-25 23:25:59,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 1428. [2022-11-25 23:25:59,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3902787705503932) internal successors, (1945), 1427 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:59,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1945 transitions. [2022-11-25 23:25:59,663 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1945 transitions. Word has length 111 [2022-11-25 23:25:59,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:59,663 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1945 transitions. [2022-11-25 23:25:59,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 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) [2022-11-25 23:25:59,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1945 transitions. [2022-11-25 23:25:59,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:25:59,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:59,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:59,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-25 23:25:59,667 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:25:59,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:59,667 INFO L85 PathProgramCache]: Analyzing trace with hash 294585012, now seen corresponding path program 1 times [2022-11-25 23:25:59,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:59,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464007181] [2022-11-25 23:25:59,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:59,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:59,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:59,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:59,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464007181] [2022-11-25 23:25:59,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464007181] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:59,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:59,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:25:59,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470813448] [2022-11-25 23:25:59,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:59,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:25:59,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:59,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:25:59,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:25:59,960 INFO L87 Difference]: Start difference. First operand 1428 states and 1945 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:04,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:04,032 INFO L93 Difference]: Finished difference Result 2457 states and 3321 transitions. [2022-11-25 23:26:04,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:26:04,033 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:26:04,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:04,035 INFO L225 Difference]: With dead ends: 2457 [2022-11-25 23:26:04,035 INFO L226 Difference]: Without dead ends: 2341 [2022-11-25 23:26:04,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:26:04,036 INFO L413 NwaCegarLoop]: 979 mSDtfsCounter, 4617 mSDsluCounter, 3069 mSDsCounter, 0 mSdLazyCounter, 3657 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4617 SdHoareTripleChecker+Valid, 4048 SdHoareTripleChecker+Invalid, 3661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:04,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4617 Valid, 4048 Invalid, 3661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3657 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:26:04,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-25 23:26:04,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2022-11-25 23:26:04,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3895639742673338) internal successors, (1944), 1427 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:04,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1944 transitions. [2022-11-25 23:26:04,518 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1944 transitions. Word has length 112 [2022-11-25 23:26:04,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:04,518 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1944 transitions. [2022-11-25 23:26:04,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:04,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1944 transitions. [2022-11-25 23:26:04,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:26:04,520 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:04,520 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:04,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-25 23:26:04,521 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:26:04,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:04,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1558151312, now seen corresponding path program 1 times [2022-11-25 23:26:04,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:04,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759123730] [2022-11-25 23:26:04,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:04,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:04,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:04,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:04,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759123730] [2022-11-25 23:26:04,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759123730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:04,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:04,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:26:04,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230315056] [2022-11-25 23:26:04,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:04,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:26:04,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:04,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:26:04,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:26:04,759 INFO L87 Difference]: Start difference. First operand 1428 states and 1944 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:08,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:08,945 INFO L93 Difference]: Finished difference Result 2453 states and 3316 transitions. [2022-11-25 23:26:08,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:26:08,951 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:26:08,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:08,952 INFO L225 Difference]: With dead ends: 2453 [2022-11-25 23:26:08,952 INFO L226 Difference]: Without dead ends: 2341 [2022-11-25 23:26:08,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:26:08,953 INFO L413 NwaCegarLoop]: 974 mSDtfsCounter, 4577 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 3677 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4577 SdHoareTripleChecker+Valid, 4075 SdHoareTripleChecker+Invalid, 3680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:08,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4577 Valid, 4075 Invalid, 3680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3677 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:26:08,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-25 23:26:09,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2022-11-25 23:26:09,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3888491779842744) internal successors, (1943), 1427 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:09,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1943 transitions. [2022-11-25 23:26:09,459 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1943 transitions. Word has length 112 [2022-11-25 23:26:09,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:09,459 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1943 transitions. [2022-11-25 23:26:09,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:09,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1943 transitions. [2022-11-25 23:26:09,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:26:09,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:09,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:09,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-25 23:26:09,462 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:26:09,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:09,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1896693420, now seen corresponding path program 1 times [2022-11-25 23:26:09,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:09,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571951942] [2022-11-25 23:26:09,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:09,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:09,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:09,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:09,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571951942] [2022-11-25 23:26:09,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571951942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:09,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:09,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:26:09,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18828054] [2022-11-25 23:26:09,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:09,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:26:09,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:09,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:26:09,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:26:09,715 INFO L87 Difference]: Start difference. First operand 1428 states and 1943 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:13,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:13,926 INFO L93 Difference]: Finished difference Result 2453 states and 3315 transitions. [2022-11-25 23:26:13,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:26:13,927 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:26:13,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:13,929 INFO L225 Difference]: With dead ends: 2453 [2022-11-25 23:26:13,929 INFO L226 Difference]: Without dead ends: 2341 [2022-11-25 23:26:13,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:26:13,930 INFO L413 NwaCegarLoop]: 979 mSDtfsCounter, 4607 mSDsluCounter, 3075 mSDsCounter, 0 mSdLazyCounter, 3648 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4607 SdHoareTripleChecker+Valid, 4054 SdHoareTripleChecker+Invalid, 3652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:13,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4607 Valid, 4054 Invalid, 3652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3648 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:26:13,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-25 23:26:14,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2022-11-25 23:26:14,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.388134381701215) internal successors, (1942), 1427 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:14,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1942 transitions. [2022-11-25 23:26:14,436 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1942 transitions. Word has length 112 [2022-11-25 23:26:14,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:14,436 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1942 transitions. [2022-11-25 23:26:14,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:14,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1942 transitions. [2022-11-25 23:26:14,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:26:14,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:14,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:14,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-25 23:26:14,438 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:26:14,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:14,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1908379433, now seen corresponding path program 1 times [2022-11-25 23:26:14,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:14,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22446287] [2022-11-25 23:26:14,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:14,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:14,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:14,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:14,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22446287] [2022-11-25 23:26:14,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22446287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:14,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:14,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:26:14,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311123456] [2022-11-25 23:26:14,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:14,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:26:14,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:14,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:26:14,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:26:14,681 INFO L87 Difference]: Start difference. First operand 1428 states and 1942 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:18,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:18,930 INFO L93 Difference]: Finished difference Result 2451 states and 3311 transitions. [2022-11-25 23:26:18,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:26:18,930 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:26:18,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:18,933 INFO L225 Difference]: With dead ends: 2451 [2022-11-25 23:26:18,933 INFO L226 Difference]: Without dead ends: 2341 [2022-11-25 23:26:18,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:26:18,934 INFO L413 NwaCegarLoop]: 982 mSDtfsCounter, 4545 mSDsluCounter, 3130 mSDsCounter, 0 mSdLazyCounter, 3672 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4545 SdHoareTripleChecker+Valid, 4112 SdHoareTripleChecker+Invalid, 3675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:18,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4545 Valid, 4112 Invalid, 3675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3672 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:26:18,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-25 23:26:19,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2022-11-25 23:26:19,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.387419585418156) internal successors, (1941), 1427 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:19,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1941 transitions. [2022-11-25 23:26:19,465 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1941 transitions. Word has length 112 [2022-11-25 23:26:19,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:19,466 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1941 transitions. [2022-11-25 23:26:19,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:19,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1941 transitions. [2022-11-25 23:26:19,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:26:19,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:19,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:19,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-25 23:26:19,468 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:26:19,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:19,468 INFO L85 PathProgramCache]: Analyzing trace with hash -729427139, now seen corresponding path program 1 times [2022-11-25 23:26:19,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:19,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230713674] [2022-11-25 23:26:19,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:19,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:19,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:19,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:19,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230713674] [2022-11-25 23:26:19,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230713674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:19,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:19,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:26:19,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48923061] [2022-11-25 23:26:19,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:19,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:26:19,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:19,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:26:19,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:26:19,698 INFO L87 Difference]: Start difference. First operand 1428 states and 1941 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:23,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:23,861 INFO L93 Difference]: Finished difference Result 2451 states and 3310 transitions. [2022-11-25 23:26:23,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:26:23,861 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:26:23,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:23,864 INFO L225 Difference]: With dead ends: 2451 [2022-11-25 23:26:23,864 INFO L226 Difference]: Without dead ends: 2341 [2022-11-25 23:26:23,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:26:23,866 INFO L413 NwaCegarLoop]: 998 mSDtfsCounter, 4524 mSDsluCounter, 3132 mSDsCounter, 0 mSdLazyCounter, 3746 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4524 SdHoareTripleChecker+Valid, 4130 SdHoareTripleChecker+Invalid, 3749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:23,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4524 Valid, 4130 Invalid, 3749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3746 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:26:23,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-25 23:26:24,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2022-11-25 23:26:24,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3867047891350965) internal successors, (1940), 1427 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:24,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1940 transitions. [2022-11-25 23:26:24,417 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1940 transitions. Word has length 112 [2022-11-25 23:26:24,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:24,417 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1940 transitions. [2022-11-25 23:26:24,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:24,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1940 transitions. [2022-11-25 23:26:24,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:26:24,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:24,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:24,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-25 23:26:24,421 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:26:24,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:24,421 INFO L85 PathProgramCache]: Analyzing trace with hash 224905291, now seen corresponding path program 1 times [2022-11-25 23:26:24,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:24,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891574388] [2022-11-25 23:26:24,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:24,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:24,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:24,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:24,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891574388] [2022-11-25 23:26:24,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891574388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:24,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:24,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:26:24,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173281243] [2022-11-25 23:26:24,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:24,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:26:24,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:24,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:26:24,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:26:24,655 INFO L87 Difference]: Start difference. First operand 1428 states and 1940 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:28,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:28,812 INFO L93 Difference]: Finished difference Result 2453 states and 3310 transitions. [2022-11-25 23:26:28,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:26:28,812 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:26:28,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:28,815 INFO L225 Difference]: With dead ends: 2453 [2022-11-25 23:26:28,815 INFO L226 Difference]: Without dead ends: 2341 [2022-11-25 23:26:28,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:26:28,816 INFO L413 NwaCegarLoop]: 979 mSDtfsCounter, 3126 mSDsluCounter, 3075 mSDsCounter, 0 mSdLazyCounter, 3626 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3126 SdHoareTripleChecker+Valid, 4054 SdHoareTripleChecker+Invalid, 3630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:28,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3126 Valid, 4054 Invalid, 3630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3626 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:26:28,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-25 23:26:29,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2022-11-25 23:26:29,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3859899928520372) internal successors, (1939), 1427 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:29,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1939 transitions. [2022-11-25 23:26:29,355 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1939 transitions. Word has length 112 [2022-11-25 23:26:29,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:29,355 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1939 transitions. [2022-11-25 23:26:29,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:29,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1939 transitions. [2022-11-25 23:26:29,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:26:29,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:29,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:29,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-25 23:26:29,358 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:26:29,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:29,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1201228785, now seen corresponding path program 1 times [2022-11-25 23:26:29,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:29,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517290501] [2022-11-25 23:26:29,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:29,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:29,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:29,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:29,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:29,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517290501] [2022-11-25 23:26:29,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517290501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:29,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:29,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:26:29,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943593024] [2022-11-25 23:26:29,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:29,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:26:29,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:29,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:26:29,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:26:29,587 INFO L87 Difference]: Start difference. First operand 1428 states and 1939 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:33,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:33,850 INFO L93 Difference]: Finished difference Result 2451 states and 3306 transitions. [2022-11-25 23:26:33,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:26:33,851 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:26:33,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:33,853 INFO L225 Difference]: With dead ends: 2451 [2022-11-25 23:26:33,853 INFO L226 Difference]: Without dead ends: 2341 [2022-11-25 23:26:33,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:26:33,854 INFO L413 NwaCegarLoop]: 955 mSDtfsCounter, 4643 mSDsluCounter, 3051 mSDsCounter, 0 mSdLazyCounter, 3541 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4643 SdHoareTripleChecker+Valid, 4006 SdHoareTripleChecker+Invalid, 3545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:33,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4643 Valid, 4006 Invalid, 3545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3541 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 23:26:33,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-25 23:26:34,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2022-11-25 23:26:34,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3852751965689778) internal successors, (1938), 1427 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:34,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1938 transitions. [2022-11-25 23:26:34,382 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1938 transitions. Word has length 112 [2022-11-25 23:26:34,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:34,382 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1938 transitions. [2022-11-25 23:26:34,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:34,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1938 transitions. [2022-11-25 23:26:34,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:26:34,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:34,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:34,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-25 23:26:34,384 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:26:34,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:34,385 INFO L85 PathProgramCache]: Analyzing trace with hash 497794837, now seen corresponding path program 1 times [2022-11-25 23:26:34,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:34,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681386411] [2022-11-25 23:26:34,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:34,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:34,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:34,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:34,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681386411] [2022-11-25 23:26:34,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681386411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:34,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:34,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:26:34,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099456556] [2022-11-25 23:26:34,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:34,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:26:34,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:34,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:26:34,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:26:34,648 INFO L87 Difference]: Start difference. First operand 1428 states and 1938 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:38,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:38,871 INFO L93 Difference]: Finished difference Result 2457 states and 3311 transitions. [2022-11-25 23:26:38,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:26:38,871 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:26:38,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:38,874 INFO L225 Difference]: With dead ends: 2457 [2022-11-25 23:26:38,874 INFO L226 Difference]: Without dead ends: 2341 [2022-11-25 23:26:38,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:26:38,875 INFO L413 NwaCegarLoop]: 955 mSDtfsCounter, 4653 mSDsluCounter, 3041 mSDsCounter, 0 mSdLazyCounter, 3532 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4653 SdHoareTripleChecker+Valid, 3996 SdHoareTripleChecker+Invalid, 3536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:38,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4653 Valid, 3996 Invalid, 3536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3532 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 23:26:38,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-25 23:26:39,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2022-11-25 23:26:39,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3845604002859184) internal successors, (1937), 1427 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:39,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1937 transitions. [2022-11-25 23:26:39,430 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1937 transitions. Word has length 112 [2022-11-25 23:26:39,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:39,430 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1937 transitions. [2022-11-25 23:26:39,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:39,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1937 transitions. [2022-11-25 23:26:39,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:26:39,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:39,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:39,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-25 23:26:39,431 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:26:39,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:39,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1476130129, now seen corresponding path program 1 times [2022-11-25 23:26:39,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:39,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071599139] [2022-11-25 23:26:39,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:39,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:39,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:39,691 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:39,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071599139] [2022-11-25 23:26:39,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071599139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:39,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:39,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:26:39,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778825430] [2022-11-25 23:26:39,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:39,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:26:39,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:39,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:26:39,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:26:39,694 INFO L87 Difference]: Start difference. First operand 1428 states and 1937 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:43,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:43,812 INFO L93 Difference]: Finished difference Result 2527 states and 3409 transitions. [2022-11-25 23:26:43,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:26:43,812 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:26:43,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:43,815 INFO L225 Difference]: With dead ends: 2527 [2022-11-25 23:26:43,815 INFO L226 Difference]: Without dead ends: 2389 [2022-11-25 23:26:43,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:26:43,816 INFO L413 NwaCegarLoop]: 996 mSDtfsCounter, 3107 mSDsluCounter, 3119 mSDsCounter, 0 mSdLazyCounter, 3621 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3107 SdHoareTripleChecker+Valid, 4115 SdHoareTripleChecker+Invalid, 3625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:43,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3107 Valid, 4115 Invalid, 3625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3621 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 23:26:43,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2022-11-25 23:26:44,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 1428. [2022-11-25 23:26:44,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3838456040028593) internal successors, (1936), 1427 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:44,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1936 transitions. [2022-11-25 23:26:44,409 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1936 transitions. Word has length 112 [2022-11-25 23:26:44,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:44,409 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1936 transitions. [2022-11-25 23:26:44,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:44,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1936 transitions. [2022-11-25 23:26:44,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:26:44,411 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:44,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:44,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-25 23:26:44,411 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:26:44,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:44,412 INFO L85 PathProgramCache]: Analyzing trace with hash 865897012, now seen corresponding path program 1 times [2022-11-25 23:26:44,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:44,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106791102] [2022-11-25 23:26:44,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:44,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:44,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:44,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:44,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106791102] [2022-11-25 23:26:44,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106791102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:44,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:44,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:26:44,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150918142] [2022-11-25 23:26:44,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:44,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:26:44,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:44,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:26:44,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:26:44,616 INFO L87 Difference]: Start difference. First operand 1428 states and 1936 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:49,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:49,010 INFO L93 Difference]: Finished difference Result 2457 states and 3309 transitions. [2022-11-25 23:26:49,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:26:49,011 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:26:49,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:49,013 INFO L225 Difference]: With dead ends: 2457 [2022-11-25 23:26:49,013 INFO L226 Difference]: Without dead ends: 2341 [2022-11-25 23:26:49,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:26:49,015 INFO L413 NwaCegarLoop]: 1005 mSDtfsCounter, 3079 mSDsluCounter, 3143 mSDsCounter, 0 mSdLazyCounter, 3667 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3079 SdHoareTripleChecker+Valid, 4148 SdHoareTripleChecker+Invalid, 3671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:49,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3079 Valid, 4148 Invalid, 3671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3667 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 23:26:49,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-25 23:26:49,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2022-11-25 23:26:49,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3831308077198) internal successors, (1935), 1427 states have internal predecessors, (1935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:49,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1935 transitions. [2022-11-25 23:26:49,578 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1935 transitions. Word has length 112 [2022-11-25 23:26:49,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:49,578 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1935 transitions. [2022-11-25 23:26:49,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:49,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1935 transitions. [2022-11-25 23:26:49,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:26:49,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:49,579 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:49,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-25 23:26:49,580 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:26:49,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:49,580 INFO L85 PathProgramCache]: Analyzing trace with hash -986214715, now seen corresponding path program 1 times [2022-11-25 23:26:49,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:49,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926318048] [2022-11-25 23:26:49,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:49,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:49,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:49,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:49,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926318048] [2022-11-25 23:26:49,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926318048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:49,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:49,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:26:49,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092512766] [2022-11-25 23:26:49,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:49,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:26:49,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:49,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:26:49,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:26:49,807 INFO L87 Difference]: Start difference. First operand 1428 states and 1935 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:54,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:54,262 INFO L93 Difference]: Finished difference Result 2453 states and 3303 transitions. [2022-11-25 23:26:54,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:26:54,263 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:26:54,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:54,265 INFO L225 Difference]: With dead ends: 2453 [2022-11-25 23:26:54,265 INFO L226 Difference]: Without dead ends: 2341 [2022-11-25 23:26:54,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:26:54,266 INFO L413 NwaCegarLoop]: 1000 mSDtfsCounter, 4457 mSDsluCounter, 3183 mSDsCounter, 0 mSdLazyCounter, 3688 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4457 SdHoareTripleChecker+Valid, 4183 SdHoareTripleChecker+Invalid, 3691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:54,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4457 Valid, 4183 Invalid, 3691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3688 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:26:54,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-25 23:26:54,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2022-11-25 23:26:54,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3824160114367405) internal successors, (1934), 1427 states have internal predecessors, (1934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:54,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1934 transitions. [2022-11-25 23:26:54,855 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1934 transitions. Word has length 112 [2022-11-25 23:26:54,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:54,856 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1934 transitions. [2022-11-25 23:26:54,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:54,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1934 transitions. [2022-11-25 23:26:54,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:26:54,857 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:54,857 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:54,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-25 23:26:54,857 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:26:54,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:54,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1285263200, now seen corresponding path program 1 times [2022-11-25 23:26:54,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:26:54,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131323858] [2022-11-25 23:26:54,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:54,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:26:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:55,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:55,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:26:55,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131323858] [2022-11-25 23:26:55,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131323858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:55,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:55,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:26:55,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965447565] [2022-11-25 23:26:55,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:55,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:26:55,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:26:55,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:26:55,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:26:55,116 INFO L87 Difference]: Start difference. First operand 1428 states and 1934 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:59,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:59,495 INFO L93 Difference]: Finished difference Result 2453 states and 3302 transitions. [2022-11-25 23:26:59,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:26:59,496 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:26:59,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:59,498 INFO L225 Difference]: With dead ends: 2453 [2022-11-25 23:26:59,498 INFO L226 Difference]: Without dead ends: 2341 [2022-11-25 23:26:59,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:26:59,499 INFO L413 NwaCegarLoop]: 1005 mSDtfsCounter, 4487 mSDsluCounter, 3161 mSDsCounter, 0 mSdLazyCounter, 3662 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4487 SdHoareTripleChecker+Valid, 4166 SdHoareTripleChecker+Invalid, 3666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:59,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4487 Valid, 4166 Invalid, 3666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3662 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:26:59,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-25 23:27:00,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2022-11-25 23:27:00,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3817012151536812) internal successors, (1933), 1427 states have internal predecessors, (1933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:00,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1933 transitions. [2022-11-25 23:27:00,093 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1933 transitions. Word has length 112 [2022-11-25 23:27:00,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:00,093 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1933 transitions. [2022-11-25 23:27:00,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:00,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1933 transitions. [2022-11-25 23:27:00,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:27:00,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:00,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:27:00,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-25 23:27:00,095 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:27:00,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:00,095 INFO L85 PathProgramCache]: Analyzing trace with hash 2038403798, now seen corresponding path program 1 times [2022-11-25 23:27:00,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:00,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722321809] [2022-11-25 23:27:00,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:00,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:00,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:00,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:00,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722321809] [2022-11-25 23:27:00,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722321809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:27:00,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:27:00,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:27:00,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507278758] [2022-11-25 23:27:00,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:27:00,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:27:00,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:27:00,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:27:00,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:27:00,410 INFO L87 Difference]: Start difference. First operand 1428 states and 1933 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:04,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:04,927 INFO L93 Difference]: Finished difference Result 2447 states and 3291 transitions. [2022-11-25 23:27:04,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:27:04,928 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:27:04,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:04,930 INFO L225 Difference]: With dead ends: 2447 [2022-11-25 23:27:04,930 INFO L226 Difference]: Without dead ends: 2341 [2022-11-25 23:27:04,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:27:04,932 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 4532 mSDsluCounter, 3134 mSDsCounter, 0 mSdLazyCounter, 3573 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4532 SdHoareTripleChecker+Valid, 4115 SdHoareTripleChecker+Invalid, 3577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:04,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4532 Valid, 4115 Invalid, 3577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3573 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:27:04,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-25 23:27:05,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2022-11-25 23:27:05,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3809864188706218) internal successors, (1932), 1427 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:05,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1932 transitions. [2022-11-25 23:27:05,652 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1932 transitions. Word has length 112 [2022-11-25 23:27:05,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:05,652 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1932 transitions. [2022-11-25 23:27:05,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:05,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1932 transitions. [2022-11-25 23:27:05,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:27:05,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:05,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:27:05,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-25 23:27:05,654 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:27:05,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:05,654 INFO L85 PathProgramCache]: Analyzing trace with hash -946721092, now seen corresponding path program 1 times [2022-11-25 23:27:05,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:05,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956641633] [2022-11-25 23:27:05,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:05,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:05,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:05,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:05,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956641633] [2022-11-25 23:27:05,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956641633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:27:05,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:27:05,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:27:05,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176518448] [2022-11-25 23:27:05,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:27:05,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:27:05,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:27:05,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:27:05,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:27:05,902 INFO L87 Difference]: Start difference. First operand 1428 states and 1932 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:10,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:10,356 INFO L93 Difference]: Finished difference Result 2453 states and 3299 transitions. [2022-11-25 23:27:10,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:27:10,357 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:27:10,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:10,359 INFO L225 Difference]: With dead ends: 2453 [2022-11-25 23:27:10,359 INFO L226 Difference]: Without dead ends: 2341 [2022-11-25 23:27:10,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:27:10,360 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 4537 mSDsluCounter, 3128 mSDsCounter, 0 mSdLazyCounter, 3566 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4537 SdHoareTripleChecker+Valid, 4109 SdHoareTripleChecker+Invalid, 3570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:10,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4537 Valid, 4109 Invalid, 3570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3566 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:27:10,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-25 23:27:11,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2022-11-25 23:27:11,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3802716225875626) internal successors, (1931), 1427 states have internal predecessors, (1931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:11,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1931 transitions. [2022-11-25 23:27:11,026 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1931 transitions. Word has length 112 [2022-11-25 23:27:11,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:11,026 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1931 transitions. [2022-11-25 23:27:11,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:11,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1931 transitions. [2022-11-25 23:27:11,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:27:11,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:11,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:27:11,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-25 23:27:11,029 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:27:11,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:11,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1650636604, now seen corresponding path program 1 times [2022-11-25 23:27:11,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:11,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345998579] [2022-11-25 23:27:11,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:11,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:11,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:11,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:11,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345998579] [2022-11-25 23:27:11,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345998579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:27:11,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:27:11,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:27:11,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775933646] [2022-11-25 23:27:11,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:27:11,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:27:11,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:27:11,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:27:11,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:27:11,271 INFO L87 Difference]: Start difference. First operand 1428 states and 1931 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:15,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:15,830 INFO L93 Difference]: Finished difference Result 2461 states and 3309 transitions. [2022-11-25 23:27:15,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:27:15,831 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:27:15,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:15,833 INFO L225 Difference]: With dead ends: 2461 [2022-11-25 23:27:15,833 INFO L226 Difference]: Without dead ends: 2341 [2022-11-25 23:27:15,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:27:15,835 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 4542 mSDsluCounter, 3124 mSDsCounter, 0 mSdLazyCounter, 3556 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4542 SdHoareTripleChecker+Valid, 4105 SdHoareTripleChecker+Invalid, 3560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:15,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4542 Valid, 4105 Invalid, 3560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3556 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 23:27:15,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-25 23:27:16,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2022-11-25 23:27:16,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.378842030021444) internal successors, (1929), 1427 states have internal predecessors, (1929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:16,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1929 transitions. [2022-11-25 23:27:16,431 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1929 transitions. Word has length 112 [2022-11-25 23:27:16,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:16,432 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1929 transitions. [2022-11-25 23:27:16,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:16,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1929 transitions. [2022-11-25 23:27:16,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:27:16,433 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:16,433 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:27:16,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-25 23:27:16,433 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:27:16,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:16,434 INFO L85 PathProgramCache]: Analyzing trace with hash -793106707, now seen corresponding path program 1 times [2022-11-25 23:27:16,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:16,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984354011] [2022-11-25 23:27:16,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:16,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:16,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:16,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:16,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984354011] [2022-11-25 23:27:16,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984354011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:27:16,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:27:16,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:27:16,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690626752] [2022-11-25 23:27:16,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:27:16,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:27:16,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:27:16,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:27:16,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:27:16,721 INFO L87 Difference]: Start difference. First operand 1428 states and 1929 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:21,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:21,250 INFO L93 Difference]: Finished difference Result 2463 states and 3308 transitions. [2022-11-25 23:27:21,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:27:21,250 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:27:21,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:21,253 INFO L225 Difference]: With dead ends: 2463 [2022-11-25 23:27:21,253 INFO L226 Difference]: Without dead ends: 2341 [2022-11-25 23:27:21,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:27:21,253 INFO L413 NwaCegarLoop]: 1005 mSDtfsCounter, 3066 mSDsluCounter, 3147 mSDsCounter, 0 mSdLazyCounter, 3631 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3066 SdHoareTripleChecker+Valid, 4152 SdHoareTripleChecker+Invalid, 3635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:21,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3066 Valid, 4152 Invalid, 3635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3631 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 23:27:21,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-25 23:27:21,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2022-11-25 23:27:21,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3774124374553252) internal successors, (1927), 1427 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:21,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1927 transitions. [2022-11-25 23:27:21,867 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1927 transitions. Word has length 112 [2022-11-25 23:27:21,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:21,868 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1927 transitions. [2022-11-25 23:27:21,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:21,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1927 transitions. [2022-11-25 23:27:21,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:27:21,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:21,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:27:21,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-25 23:27:21,869 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:27:21,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:21,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1161208882, now seen corresponding path program 1 times [2022-11-25 23:27:21,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:21,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116549215] [2022-11-25 23:27:21,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:21,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:21,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:22,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:22,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:22,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116549215] [2022-11-25 23:27:22,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116549215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:27:22,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:27:22,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:27:22,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695301734] [2022-11-25 23:27:22,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:27:22,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:27:22,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:27:22,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:27:22,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:27:22,091 INFO L87 Difference]: Start difference. First operand 1428 states and 1927 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:26,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:26,621 INFO L93 Difference]: Finished difference Result 2463 states and 3304 transitions. [2022-11-25 23:27:26,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:27:26,622 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:27:26,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:26,624 INFO L225 Difference]: With dead ends: 2463 [2022-11-25 23:27:26,624 INFO L226 Difference]: Without dead ends: 2341 [2022-11-25 23:27:26,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:27:26,625 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 4539 mSDsluCounter, 3121 mSDsCounter, 0 mSdLazyCounter, 3544 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4539 SdHoareTripleChecker+Valid, 4102 SdHoareTripleChecker+Invalid, 3548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:26,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4539 Valid, 4102 Invalid, 3548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3544 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:27:26,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-25 23:27:27,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2022-11-25 23:27:27,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3759828448892066) internal successors, (1925), 1427 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:27,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1925 transitions. [2022-11-25 23:27:27,223 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1925 transitions. Word has length 112 [2022-11-25 23:27:27,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:27,223 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1925 transitions. [2022-11-25 23:27:27,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:27,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1925 transitions. [2022-11-25 23:27:27,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:27:27,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:27,224 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:27:27,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-25 23:27:27,225 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:27:27,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:27,225 INFO L85 PathProgramCache]: Analyzing trace with hash -752363654, now seen corresponding path program 1 times [2022-11-25 23:27:27,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:27,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586233311] [2022-11-25 23:27:27,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:27,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:27,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:27,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:27,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586233311] [2022-11-25 23:27:27,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586233311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:27:27,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:27:27,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:27:27,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292293608] [2022-11-25 23:27:27,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:27:27,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:27:27,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:27:27,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:27:27,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:27:27,422 INFO L87 Difference]: Start difference. First operand 1428 states and 1925 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:31,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:31,822 INFO L93 Difference]: Finished difference Result 2537 states and 3407 transitions. [2022-11-25 23:27:31,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:27:31,822 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:27:31,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:31,825 INFO L225 Difference]: With dead ends: 2537 [2022-11-25 23:27:31,825 INFO L226 Difference]: Without dead ends: 2389 [2022-11-25 23:27:31,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:27:31,826 INFO L413 NwaCegarLoop]: 996 mSDtfsCounter, 4596 mSDsluCounter, 3127 mSDsCounter, 0 mSdLazyCounter, 3568 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4596 SdHoareTripleChecker+Valid, 4123 SdHoareTripleChecker+Invalid, 3572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:31,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4596 Valid, 4123 Invalid, 3572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3568 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 23:27:31,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2022-11-25 23:27:32,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 1428. [2022-11-25 23:27:32,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.374553252323088) internal successors, (1923), 1427 states have internal predecessors, (1923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:32,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1923 transitions. [2022-11-25 23:27:32,465 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1923 transitions. Word has length 112 [2022-11-25 23:27:32,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:32,465 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1923 transitions. [2022-11-25 23:27:32,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:32,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1923 transitions. [2022-11-25 23:27:32,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:27:32,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:32,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:27:32,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-25 23:27:32,467 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:27:32,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:32,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1290310657, now seen corresponding path program 1 times [2022-11-25 23:27:32,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:32,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061763828] [2022-11-25 23:27:32,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:32,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:32,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:32,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:32,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:32,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061763828] [2022-11-25 23:27:32,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061763828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:27:32,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:27:32,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:27:32,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761390422] [2022-11-25 23:27:32,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:27:32,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:27:32,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:27:32,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:27:32,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:27:32,712 INFO L87 Difference]: Start difference. First operand 1428 states and 1923 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:37,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:37,454 INFO L93 Difference]: Finished difference Result 2457 states and 3295 transitions. [2022-11-25 23:27:37,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:27:37,454 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:27:37,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:37,456 INFO L225 Difference]: With dead ends: 2457 [2022-11-25 23:27:37,457 INFO L226 Difference]: Without dead ends: 2341 [2022-11-25 23:27:37,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:27:37,458 INFO L413 NwaCegarLoop]: 1024 mSDtfsCounter, 4349 mSDsluCounter, 3256 mSDsCounter, 0 mSdLazyCounter, 3712 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4349 SdHoareTripleChecker+Valid, 4280 SdHoareTripleChecker+Invalid, 3715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:37,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4349 Valid, 4280 Invalid, 3715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3712 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:27:37,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-25 23:27:38,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2022-11-25 23:27:38,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3731236597569694) internal successors, (1921), 1427 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:38,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1921 transitions. [2022-11-25 23:27:38,073 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1921 transitions. Word has length 112 [2022-11-25 23:27:38,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:38,073 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1921 transitions. [2022-11-25 23:27:38,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:38,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1921 transitions. [2022-11-25 23:27:38,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:27:38,074 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:38,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:27:38,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-25 23:27:38,075 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:27:38,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:38,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1351588119, now seen corresponding path program 1 times [2022-11-25 23:27:38,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:38,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278873995] [2022-11-25 23:27:38,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:38,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:38,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:38,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:38,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278873995] [2022-11-25 23:27:38,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278873995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:27:38,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:27:38,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:27:38,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909171015] [2022-11-25 23:27:38,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:27:38,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:27:38,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:27:38,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:27:38,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:27:38,366 INFO L87 Difference]: Start difference. First operand 1428 states and 1921 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:43,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:43,032 INFO L93 Difference]: Finished difference Result 2461 states and 3297 transitions. [2022-11-25 23:27:43,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:27:43,033 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:27:43,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:43,035 INFO L225 Difference]: With dead ends: 2461 [2022-11-25 23:27:43,035 INFO L226 Difference]: Without dead ends: 2341 [2022-11-25 23:27:43,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:27:43,036 INFO L413 NwaCegarLoop]: 1029 mSDtfsCounter, 3012 mSDsluCounter, 3225 mSDsCounter, 0 mSdLazyCounter, 3678 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3012 SdHoareTripleChecker+Valid, 4254 SdHoareTripleChecker+Invalid, 3682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:43,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3012 Valid, 4254 Invalid, 3682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3678 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 23:27:43,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-25 23:27:43,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2022-11-25 23:27:43,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3716940671908506) internal successors, (1919), 1427 states have internal predecessors, (1919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:43,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1919 transitions. [2022-11-25 23:27:43,675 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1919 transitions. Word has length 112 [2022-11-25 23:27:43,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:43,675 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1919 transitions. [2022-11-25 23:27:43,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:43,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1919 transitions. [2022-11-25 23:27:43,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:27:43,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:43,677 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:27:43,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-25 23:27:43,677 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:27:43,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:43,677 INFO L85 PathProgramCache]: Analyzing trace with hash -753396610, now seen corresponding path program 1 times [2022-11-25 23:27:43,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:43,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356549551] [2022-11-25 23:27:43,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:43,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:43,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:43,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:43,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356549551] [2022-11-25 23:27:43,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356549551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:27:43,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:27:43,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:27:43,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777983725] [2022-11-25 23:27:43,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:27:43,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:27:43,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:27:43,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:27:43,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:27:43,898 INFO L87 Difference]: Start difference. First operand 1428 states and 1919 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:48,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:48,674 INFO L93 Difference]: Finished difference Result 2463 states and 3294 transitions. [2022-11-25 23:27:48,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:27:48,674 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:27:48,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:48,677 INFO L225 Difference]: With dead ends: 2463 [2022-11-25 23:27:48,677 INFO L226 Difference]: Without dead ends: 2341 [2022-11-25 23:27:48,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:27:48,678 INFO L413 NwaCegarLoop]: 1029 mSDtfsCounter, 3014 mSDsluCounter, 3219 mSDsCounter, 0 mSdLazyCounter, 3665 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3014 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 3669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:48,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3014 Valid, 4248 Invalid, 3669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3665 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:27:48,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-25 23:27:49,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2022-11-25 23:27:49,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3702644746247319) internal successors, (1917), 1427 states have internal predecessors, (1917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:49,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1917 transitions. [2022-11-25 23:27:49,301 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1917 transitions. Word has length 112 [2022-11-25 23:27:49,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:49,301 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1917 transitions. [2022-11-25 23:27:49,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:49,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1917 transitions. [2022-11-25 23:27:49,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:27:49,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:49,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:27:49,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-25 23:27:49,303 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:27:49,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:49,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1690130227, now seen corresponding path program 1 times [2022-11-25 23:27:49,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:49,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910779450] [2022-11-25 23:27:49,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:49,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:49,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:49,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:49,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910779450] [2022-11-25 23:27:49,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910779450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:27:49,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:27:49,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:27:49,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296780845] [2022-11-25 23:27:49,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:27:49,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:27:49,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:27:49,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:27:49,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:27:49,525 INFO L87 Difference]: Start difference. First operand 1428 states and 1917 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:54,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:27:54,262 INFO L93 Difference]: Finished difference Result 2461 states and 3289 transitions. [2022-11-25 23:27:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:27:54,263 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:27:54,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:27:54,266 INFO L225 Difference]: With dead ends: 2461 [2022-11-25 23:27:54,266 INFO L226 Difference]: Without dead ends: 2341 [2022-11-25 23:27:54,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:27:54,267 INFO L413 NwaCegarLoop]: 1005 mSDtfsCounter, 4439 mSDsluCounter, 3196 mSDsCounter, 0 mSdLazyCounter, 3577 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4439 SdHoareTripleChecker+Valid, 4201 SdHoareTripleChecker+Invalid, 3581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:27:54,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4439 Valid, 4201 Invalid, 3581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3577 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 23:27:54,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2022-11-25 23:27:54,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2022-11-25 23:27:54,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3688348820586134) internal successors, (1915), 1427 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:54,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1915 transitions. [2022-11-25 23:27:54,942 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1915 transitions. Word has length 112 [2022-11-25 23:27:54,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:27:54,942 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1915 transitions. [2022-11-25 23:27:54,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:27:54,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1915 transitions. [2022-11-25 23:27:54,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:27:54,944 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:27:54,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:27:54,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-25 23:27:54,944 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:27:54,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:27:54,945 INFO L85 PathProgramCache]: Analyzing trace with hash -545290686, now seen corresponding path program 1 times [2022-11-25 23:27:54,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:27:54,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279328747] [2022-11-25 23:27:54,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:54,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:27:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:55,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:55,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:27:55,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279328747] [2022-11-25 23:27:55,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279328747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:27:55,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:27:55,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 23:27:55,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404424696] [2022-11-25 23:27:55,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:27:55,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 23:27:55,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:27:55,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 23:27:55,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:27:55,407 INFO L87 Difference]: Start difference. First operand 1428 states and 1915 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:03,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:03,272 INFO L93 Difference]: Finished difference Result 3451 states and 4625 transitions. [2022-11-25 23:28:03,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:28:03,273 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:28:03,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:03,276 INFO L225 Difference]: With dead ends: 3451 [2022-11-25 23:28:03,276 INFO L226 Difference]: Without dead ends: 3217 [2022-11-25 23:28:03,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-25 23:28:03,277 INFO L413 NwaCegarLoop]: 1214 mSDtfsCounter, 8249 mSDsluCounter, 3842 mSDsCounter, 0 mSdLazyCounter, 4353 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8249 SdHoareTripleChecker+Valid, 5056 SdHoareTripleChecker+Invalid, 4660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 4353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:03,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8249 Valid, 5056 Invalid, 4660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 4353 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-25 23:28:03,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3217 states. [2022-11-25 23:28:03,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3217 to 1436. [2022-11-25 23:28:03,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1407 states have (on average 1.3667377398720681) internal successors, (1923), 1435 states have internal predecessors, (1923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:03,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1923 transitions. [2022-11-25 23:28:03,959 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1923 transitions. Word has length 112 [2022-11-25 23:28:03,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:03,959 INFO L495 AbstractCegarLoop]: Abstraction has 1436 states and 1923 transitions. [2022-11-25 23:28:03,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:03,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1923 transitions. [2022-11-25 23:28:03,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:28:03,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:03,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:03,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-25 23:28:03,961 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:28:03,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:03,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1858638162, now seen corresponding path program 1 times [2022-11-25 23:28:03,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:03,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582773032] [2022-11-25 23:28:03,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:03,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:04,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:28:04,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:28:04,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582773032] [2022-11-25 23:28:04,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582773032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:04,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:04,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:28:04,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433350991] [2022-11-25 23:28:04,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:04,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:28:04,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:04,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:28:04,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:28:04,152 INFO L87 Difference]: Start difference. First operand 1436 states and 1923 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:08,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:08,588 INFO L93 Difference]: Finished difference Result 2557 states and 3418 transitions. [2022-11-25 23:28:08,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:28:08,589 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:28:08,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:08,591 INFO L225 Difference]: With dead ends: 2557 [2022-11-25 23:28:08,591 INFO L226 Difference]: Without dead ends: 2397 [2022-11-25 23:28:08,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:28:08,592 INFO L413 NwaCegarLoop]: 951 mSDtfsCounter, 4795 mSDsluCounter, 3076 mSDsCounter, 0 mSdLazyCounter, 3344 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4795 SdHoareTripleChecker+Valid, 4027 SdHoareTripleChecker+Invalid, 3349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:08,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4795 Valid, 4027 Invalid, 3349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3344 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 23:28:08,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2397 states. [2022-11-25 23:28:09,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2397 to 1436. [2022-11-25 23:28:09,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1407 states have (on average 1.365316275764037) internal successors, (1921), 1435 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:09,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1921 transitions. [2022-11-25 23:28:09,450 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1921 transitions. Word has length 112 [2022-11-25 23:28:09,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:09,450 INFO L495 AbstractCegarLoop]: Abstraction has 1436 states and 1921 transitions. [2022-11-25 23:28:09,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:09,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1921 transitions. [2022-11-25 23:28:09,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:28:09,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:09,452 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:09,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-11-25 23:28:09,452 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:28:09,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:09,453 INFO L85 PathProgramCache]: Analyzing trace with hash 2027483906, now seen corresponding path program 1 times [2022-11-25 23:28:09,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:09,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97833362] [2022-11-25 23:28:09,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:09,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:09,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:09,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:28:09,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:28:09,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97833362] [2022-11-25 23:28:09,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97833362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:09,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:09,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:28:09,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615532485] [2022-11-25 23:28:09,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:09,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:28:09,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:09,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:28:09,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:28:09,675 INFO L87 Difference]: Start difference. First operand 1436 states and 1921 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:14,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:14,541 INFO L93 Difference]: Finished difference Result 2475 states and 3300 transitions. [2022-11-25 23:28:14,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:28:14,542 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:28:14,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:14,543 INFO L225 Difference]: With dead ends: 2475 [2022-11-25 23:28:14,544 INFO L226 Difference]: Without dead ends: 2349 [2022-11-25 23:28:14,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:28:14,544 INFO L413 NwaCegarLoop]: 1046 mSDtfsCounter, 4269 mSDsluCounter, 3312 mSDsCounter, 0 mSdLazyCounter, 3741 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4269 SdHoareTripleChecker+Valid, 4358 SdHoareTripleChecker+Invalid, 3744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:14,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4269 Valid, 4358 Invalid, 3744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3741 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:28:14,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2022-11-25 23:28:15,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 1436. [2022-11-25 23:28:15,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1407 states have (on average 1.3638948116560057) internal successors, (1919), 1435 states have internal predecessors, (1919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:15,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1919 transitions. [2022-11-25 23:28:15,237 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1919 transitions. Word has length 112 [2022-11-25 23:28:15,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:15,237 INFO L495 AbstractCegarLoop]: Abstraction has 1436 states and 1919 transitions. [2022-11-25 23:28:15,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:15,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1919 transitions. [2022-11-25 23:28:15,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:28:15,239 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:15,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:15,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-11-25 23:28:15,239 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:28:15,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:15,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1914809708, now seen corresponding path program 1 times [2022-11-25 23:28:15,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:15,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879272441] [2022-11-25 23:28:15,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:15,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:15,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:28:15,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:28:15,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879272441] [2022-11-25 23:28:15,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879272441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:15,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:15,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:28:15,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861596265] [2022-11-25 23:28:15,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:15,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:28:15,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:15,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:28:15,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:28:15,449 INFO L87 Difference]: Start difference. First operand 1436 states and 1919 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:20,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:20,376 INFO L93 Difference]: Finished difference Result 2475 states and 3298 transitions. [2022-11-25 23:28:20,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:28:20,376 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:28:20,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:20,379 INFO L225 Difference]: With dead ends: 2475 [2022-11-25 23:28:20,379 INFO L226 Difference]: Without dead ends: 2349 [2022-11-25 23:28:20,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:28:20,379 INFO L413 NwaCegarLoop]: 1055 mSDtfsCounter, 2963 mSDsluCounter, 3293 mSDsCounter, 0 mSdLazyCounter, 3710 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2963 SdHoareTripleChecker+Valid, 4348 SdHoareTripleChecker+Invalid, 3714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:20,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2963 Valid, 4348 Invalid, 3714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3710 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:28:20,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2022-11-25 23:28:21,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 1436. [2022-11-25 23:28:21,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1407 states have (on average 1.3624733475479744) internal successors, (1917), 1435 states have internal predecessors, (1917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:21,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1917 transitions. [2022-11-25 23:28:21,116 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1917 transitions. Word has length 112 [2022-11-25 23:28:21,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:21,116 INFO L495 AbstractCegarLoop]: Abstraction has 1436 states and 1917 transitions. [2022-11-25 23:28:21,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:21,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1917 transitions. [2022-11-25 23:28:21,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:28:21,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:21,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:21,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-11-25 23:28:21,118 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:28:21,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:21,119 INFO L85 PathProgramCache]: Analyzing trace with hash 529413222, now seen corresponding path program 1 times [2022-11-25 23:28:21,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:21,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043875683] [2022-11-25 23:28:21,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:21,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:21,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:28:21,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:28:21,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043875683] [2022-11-25 23:28:21,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043875683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:21,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:21,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:28:21,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577479112] [2022-11-25 23:28:21,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:21,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:28:21,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:21,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:28:21,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:28:21,347 INFO L87 Difference]: Start difference. First operand 1436 states and 1917 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:26,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:26,284 INFO L93 Difference]: Finished difference Result 2469 states and 3287 transitions. [2022-11-25 23:28:26,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:28:26,284 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:28:26,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:26,286 INFO L225 Difference]: With dead ends: 2469 [2022-11-25 23:28:26,287 INFO L226 Difference]: Without dead ends: 2349 [2022-11-25 23:28:26,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:28:26,287 INFO L413 NwaCegarLoop]: 1046 mSDtfsCounter, 4251 mSDsluCounter, 3321 mSDsCounter, 0 mSdLazyCounter, 3732 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4251 SdHoareTripleChecker+Valid, 4367 SdHoareTripleChecker+Invalid, 3735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:26,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4251 Valid, 4367 Invalid, 3735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3732 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 23:28:26,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2022-11-25 23:28:27,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 1436. [2022-11-25 23:28:27,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1407 states have (on average 1.3610518834399432) internal successors, (1915), 1435 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:27,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1915 transitions. [2022-11-25 23:28:27,027 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1915 transitions. Word has length 112 [2022-11-25 23:28:27,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:27,027 INFO L495 AbstractCegarLoop]: Abstraction has 1436 states and 1915 transitions. [2022-11-25 23:28:27,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:27,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1915 transitions. [2022-11-25 23:28:27,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 23:28:27,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:27,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:27,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-11-25 23:28:27,029 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:28:27,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:27,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1831211447, now seen corresponding path program 1 times [2022-11-25 23:28:27,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:27,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194568986] [2022-11-25 23:28:27,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:27,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:27,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:28:27,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:28:27,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194568986] [2022-11-25 23:28:27,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194568986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:27,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:27,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:28:27,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112220804] [2022-11-25 23:28:27,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:27,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:28:27,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:27,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:28:27,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:28:27,277 INFO L87 Difference]: Start difference. First operand 1436 states and 1915 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:32,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:32,378 INFO L93 Difference]: Finished difference Result 2631 states and 3517 transitions. [2022-11-25 23:28:32,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:28:32,379 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-11-25 23:28:32,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:32,381 INFO L225 Difference]: With dead ends: 2631 [2022-11-25 23:28:32,381 INFO L226 Difference]: Without dead ends: 2413 [2022-11-25 23:28:32,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:28:32,382 INFO L413 NwaCegarLoop]: 1316 mSDtfsCounter, 4155 mSDsluCounter, 4256 mSDsCounter, 0 mSdLazyCounter, 4182 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4155 SdHoareTripleChecker+Valid, 5572 SdHoareTripleChecker+Invalid, 4185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:32,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4155 Valid, 5572 Invalid, 4185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4182 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-25 23:28:32,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2022-11-25 23:28:33,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 1436. [2022-11-25 23:28:33,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1407 states have (on average 1.359630419331912) internal successors, (1913), 1435 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:33,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1913 transitions. [2022-11-25 23:28:33,176 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1913 transitions. Word has length 112 [2022-11-25 23:28:33,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:33,176 INFO L495 AbstractCegarLoop]: Abstraction has 1436 states and 1913 transitions. [2022-11-25 23:28:33,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:33,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1913 transitions. [2022-11-25 23:28:33,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-25 23:28:33,178 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:33,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:33,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-11-25 23:28:33,178 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:28:33,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:33,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1100476011, now seen corresponding path program 1 times [2022-11-25 23:28:33,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:33,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711632784] [2022-11-25 23:28:33,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:33,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:33,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:28:33,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:28:33,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711632784] [2022-11-25 23:28:33,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711632784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:33,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:33,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 23:28:33,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503564241] [2022-11-25 23:28:33,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:33,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 23:28:33,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:33,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 23:28:33,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-25 23:28:33,896 INFO L87 Difference]: Start difference. First operand 1436 states and 1913 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 9 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) [2022-11-25 23:28:36,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:36,828 INFO L93 Difference]: Finished difference Result 2132 states and 2681 transitions. [2022-11-25 23:28:36,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 23:28:36,828 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 9 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 [2022-11-25 23:28:36,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:36,830 INFO L225 Difference]: With dead ends: 2132 [2022-11-25 23:28:36,830 INFO L226 Difference]: Without dead ends: 1662 [2022-11-25 23:28:36,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2022-11-25 23:28:36,831 INFO L413 NwaCegarLoop]: 1390 mSDtfsCounter, 4680 mSDsluCounter, 2516 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4680 SdHoareTripleChecker+Valid, 3906 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:36,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4680 Valid, 3906 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:28:36,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2022-11-25 23:28:37,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 1070. [2022-11-25 23:28:37,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 1048 states have (on average 1.3540076335877862) internal successors, (1419), 1069 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:37,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1419 transitions. [2022-11-25 23:28:37,461 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1419 transitions. Word has length 113 [2022-11-25 23:28:37,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:37,461 INFO L495 AbstractCegarLoop]: Abstraction has 1070 states and 1419 transitions. [2022-11-25 23:28:37,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 9 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) [2022-11-25 23:28:37,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1419 transitions. [2022-11-25 23:28:37,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-25 23:28:37,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:37,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:37,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-11-25 23:28:37,463 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:28:37,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:37,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1260578693, now seen corresponding path program 1 times [2022-11-25 23:28:37,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:37,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962219655] [2022-11-25 23:28:37,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:37,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:38,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:28:38,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:28:38,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962219655] [2022-11-25 23:28:38,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962219655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:38,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:38,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 23:28:38,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204758128] [2022-11-25 23:28:38,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:38,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:28:38,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:38,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:28:38,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:28:38,169 INFO L87 Difference]: Start difference. First operand 1070 states and 1419 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) [2022-11-25 23:28:39,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:39,988 INFO L93 Difference]: Finished difference Result 1764 states and 2350 transitions. [2022-11-25 23:28:39,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 23:28:39,988 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 [2022-11-25 23:28:39,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:39,989 INFO L225 Difference]: With dead ends: 1764 [2022-11-25 23:28:39,990 INFO L226 Difference]: Without dead ends: 1276 [2022-11-25 23:28:39,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:28:39,990 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 1949 mSDsluCounter, 4586 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1949 SdHoareTripleChecker+Valid, 5461 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:39,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1949 Valid, 5461 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:28:39,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2022-11-25 23:28:40,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 686. [2022-11-25 23:28:40,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 670 states have (on average 1.328358208955224) 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) [2022-11-25 23:28:40,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 890 transitions. [2022-11-25 23:28:40,467 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 890 transitions. Word has length 113 [2022-11-25 23:28:40,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:40,467 INFO L495 AbstractCegarLoop]: Abstraction has 686 states and 890 transitions. [2022-11-25 23:28:40,467 INFO L496 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) [2022-11-25 23:28:40,468 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 890 transitions. [2022-11-25 23:28:40,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-25 23:28:40,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:40,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:40,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-11-25 23:28:40,469 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:28:40,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:40,469 INFO L85 PathProgramCache]: Analyzing trace with hash 973763975, now seen corresponding path program 1 times [2022-11-25 23:28:40,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:40,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129442695] [2022-11-25 23:28:40,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:40,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:40,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:28:40,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:28:40,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129442695] [2022-11-25 23:28:40,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129442695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:40,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:40,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:28:40,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144636939] [2022-11-25 23:28:40,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:40,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:28:40,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:40,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:28:40,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:28:40,724 INFO L87 Difference]: Start difference. First operand 686 states and 890 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-25 23:28:43,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:43,787 INFO L93 Difference]: Finished difference Result 1488 states and 1960 transitions. [2022-11-25 23:28:43,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:28:43,787 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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 [2022-11-25 23:28:43,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:43,788 INFO L225 Difference]: With dead ends: 1488 [2022-11-25 23:28:43,788 INFO L226 Difference]: Without dead ends: 1254 [2022-11-25 23:28:43,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:28:43,789 INFO L413 NwaCegarLoop]: 472 mSDtfsCounter, 1409 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1409 SdHoareTripleChecker+Valid, 1666 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:43,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1409 Valid, 1666 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:28:43,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2022-11-25 23:28:44,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 678. [2022-11-25 23:28:44,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 662 states have (on average 1.3293051359516617) internal successors, (880), 677 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:44,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 880 transitions. [2022-11-25 23:28:44,275 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 880 transitions. Word has length 113 [2022-11-25 23:28:44,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:44,275 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 880 transitions. [2022-11-25 23:28:44,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 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) [2022-11-25 23:28:44,275 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 880 transitions. [2022-11-25 23:28:44,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 23:28:44,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:44,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:44,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-11-25 23:28:44,276 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:28:44,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:44,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1628046504, now seen corresponding path program 1 times [2022-11-25 23:28:44,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:44,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508109514] [2022-11-25 23:28:44,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:44,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:44,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:28:44,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:28:44,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508109514] [2022-11-25 23:28:44,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508109514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:44,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:44,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:28:44,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871421655] [2022-11-25 23:28:44,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:44,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:28:44,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:44,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:28:44,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:28:44,517 INFO L87 Difference]: Start difference. First operand 678 states and 880 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:47,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:47,500 INFO L93 Difference]: Finished difference Result 1310 states and 1707 transitions. [2022-11-25 23:28:47,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:28:47,501 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-25 23:28:47,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:47,502 INFO L225 Difference]: With dead ends: 1310 [2022-11-25 23:28:47,502 INFO L226 Difference]: Without dead ends: 1198 [2022-11-25 23:28:47,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:28:47,503 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 2020 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2020 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:47,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2020 Valid, 1450 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:28:47,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2022-11-25 23:28:48,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 678. [2022-11-25 23:28:48,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 662 states have (on average 1.3262839879154078) internal successors, (878), 677 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:48,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 878 transitions. [2022-11-25 23:28:48,131 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 878 transitions. Word has length 114 [2022-11-25 23:28:48,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:48,131 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 878 transitions. [2022-11-25 23:28:48,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:48,131 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 878 transitions. [2022-11-25 23:28:48,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 23:28:48,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:48,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:48,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-11-25 23:28:48,133 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:28:48,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:48,133 INFO L85 PathProgramCache]: Analyzing trace with hash -754723690, now seen corresponding path program 1 times [2022-11-25 23:28:48,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:48,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581265535] [2022-11-25 23:28:48,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:48,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:48,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:28:48,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:28:48,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581265535] [2022-11-25 23:28:48,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581265535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:48,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:48,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:28:48,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249206127] [2022-11-25 23:28:48,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:48,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:28:48,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:48,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:28:48,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:28:48,375 INFO L87 Difference]: Start difference. First operand 678 states and 878 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:51,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:51,535 INFO L93 Difference]: Finished difference Result 1358 states and 1780 transitions. [2022-11-25 23:28:51,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:28:51,536 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-25 23:28:51,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:51,537 INFO L225 Difference]: With dead ends: 1358 [2022-11-25 23:28:51,537 INFO L226 Difference]: Without dead ends: 1230 [2022-11-25 23:28:51,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:28:51,538 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 1729 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 1847 SdHoareTripleChecker+Invalid, 1486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:51,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 1847 Invalid, 1486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1483 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 23:28:51,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2022-11-25 23:28:52,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 678. [2022-11-25 23:28:52,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 662 states have (on average 1.3232628398791542) internal successors, (876), 677 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:52,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 876 transitions. [2022-11-25 23:28:52,062 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 876 transitions. Word has length 114 [2022-11-25 23:28:52,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:52,062 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 876 transitions. [2022-11-25 23:28:52,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:52,062 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 876 transitions. [2022-11-25 23:28:52,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 23:28:52,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:52,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:52,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-11-25 23:28:52,064 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:28:52,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:52,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1263034005, now seen corresponding path program 1 times [2022-11-25 23:28:52,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:52,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520007929] [2022-11-25 23:28:52,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:52,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:52,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:28:52,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:28:52,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520007929] [2022-11-25 23:28:52,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520007929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:52,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:52,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:28:52,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292467859] [2022-11-25 23:28:52,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:52,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:28:52,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:52,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:28:52,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:28:52,345 INFO L87 Difference]: Start difference. First operand 678 states and 876 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:55,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:55,377 INFO L93 Difference]: Finished difference Result 1310 states and 1703 transitions. [2022-11-25 23:28:55,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:28:55,377 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-25 23:28:55,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:55,379 INFO L225 Difference]: With dead ends: 1310 [2022-11-25 23:28:55,379 INFO L226 Difference]: Without dead ends: 1198 [2022-11-25 23:28:55,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:28:55,381 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 1974 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1974 SdHoareTripleChecker+Valid, 1502 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:55,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1974 Valid, 1502 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:28:55,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2022-11-25 23:28:55,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 678. [2022-11-25 23:28:55,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 662 states have (on average 1.3202416918429003) internal successors, (874), 677 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:55,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 874 transitions. [2022-11-25 23:28:55,870 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 874 transitions. Word has length 114 [2022-11-25 23:28:55,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:55,870 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 874 transitions. [2022-11-25 23:28:55,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:55,870 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 874 transitions. [2022-11-25 23:28:55,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 23:28:55,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:55,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:55,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-11-25 23:28:55,871 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:28:55,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:55,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1119736189, now seen corresponding path program 1 times [2022-11-25 23:28:55,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:55,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331768821] [2022-11-25 23:28:55,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:55,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:56,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:28:56,086 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:28:56,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331768821] [2022-11-25 23:28:56,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331768821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:56,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:56,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:28:56,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818947353] [2022-11-25 23:28:56,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:56,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:28:56,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:56,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:28:56,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:28:56,088 INFO L87 Difference]: Start difference. First operand 678 states and 874 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:59,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:59,244 INFO L93 Difference]: Finished difference Result 1358 states and 1774 transitions. [2022-11-25 23:28:59,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:28:59,245 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-25 23:28:59,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:59,246 INFO L225 Difference]: With dead ends: 1358 [2022-11-25 23:28:59,246 INFO L226 Difference]: Without dead ends: 1230 [2022-11-25 23:28:59,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:28:59,247 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 1223 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1223 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 1441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:59,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1223 Valid, 1806 Invalid, 1441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1437 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 23:28:59,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2022-11-25 23:28:59,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 678. [2022-11-25 23:28:59,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 662 states have (on average 1.3172205438066464) internal successors, (872), 677 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:59,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 872 transitions. [2022-11-25 23:28:59,757 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 872 transitions. Word has length 114 [2022-11-25 23:28:59,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:59,757 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 872 transitions. [2022-11-25 23:28:59,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:28:59,757 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 872 transitions. [2022-11-25 23:28:59,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 23:28:59,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:59,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:59,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-11-25 23:28:59,758 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:28:59,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:59,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1773855829, now seen corresponding path program 1 times [2022-11-25 23:28:59,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:59,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410846710] [2022-11-25 23:28:59,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:59,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:59,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:28:59,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:28:59,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410846710] [2022-11-25 23:28:59,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410846710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:59,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:59,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:28:59,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941076212] [2022-11-25 23:28:59,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:59,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:28:59,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:28:59,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:28:59,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:28:59,986 INFO L87 Difference]: Start difference. First operand 678 states and 872 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:03,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:29:03,109 INFO L93 Difference]: Finished difference Result 1306 states and 1694 transitions. [2022-11-25 23:29:03,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:29:03,110 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-25 23:29:03,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:29:03,111 INFO L225 Difference]: With dead ends: 1306 [2022-11-25 23:29:03,111 INFO L226 Difference]: Without dead ends: 1198 [2022-11-25 23:29:03,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:29:03,111 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 1665 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1665 SdHoareTripleChecker+Valid, 1655 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:29:03,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1665 Valid, 1655 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:29:03,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2022-11-25 23:29:03,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 678. [2022-11-25 23:29:03,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 662 states have (on average 1.3141993957703928) internal successors, (870), 677 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:03,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 870 transitions. [2022-11-25 23:29:03,615 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 870 transitions. Word has length 114 [2022-11-25 23:29:03,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:29:03,615 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 870 transitions. [2022-11-25 23:29:03,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:03,615 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 870 transitions. [2022-11-25 23:29:03,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 23:29:03,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:29:03,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:29:03,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-11-25 23:29:03,616 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:29:03,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:29:03,617 INFO L85 PathProgramCache]: Analyzing trace with hash 507897430, now seen corresponding path program 1 times [2022-11-25 23:29:03,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:29:03,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240282196] [2022-11-25 23:29:03,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:03,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:29:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:03,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:29:03,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:29:03,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240282196] [2022-11-25 23:29:03,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240282196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:29:03,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:29:03,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:29:03,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022886155] [2022-11-25 23:29:03,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:29:03,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:29:03,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:29:03,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:29:03,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:29:03,840 INFO L87 Difference]: Start difference. First operand 678 states and 870 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:06,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:29:06,940 INFO L93 Difference]: Finished difference Result 1310 states and 1697 transitions. [2022-11-25 23:29:06,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:29:06,941 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-25 23:29:06,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:29:06,943 INFO L225 Difference]: With dead ends: 1310 [2022-11-25 23:29:06,943 INFO L226 Difference]: Without dead ends: 1198 [2022-11-25 23:29:06,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:29:06,943 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 1870 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1870 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:29:06,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1870 Valid, 1597 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:29:06,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2022-11-25 23:29:07,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 678. [2022-11-25 23:29:07,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 662 states have (on average 1.311178247734139) internal successors, (868), 677 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:07,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 868 transitions. [2022-11-25 23:29:07,466 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 868 transitions. Word has length 114 [2022-11-25 23:29:07,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:29:07,466 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 868 transitions. [2022-11-25 23:29:07,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:07,466 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 868 transitions. [2022-11-25 23:29:07,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 23:29:07,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:29:07,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:29:07,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-11-25 23:29:07,467 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:29:07,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:29:07,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1233359702, now seen corresponding path program 1 times [2022-11-25 23:29:07,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:29:07,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767271393] [2022-11-25 23:29:07,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:07,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:29:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:07,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:29:07,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:29:07,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767271393] [2022-11-25 23:29:07,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767271393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:29:07,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:29:07,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:29:07,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424337608] [2022-11-25 23:29:07,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:29:07,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:29:07,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:29:07,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:29:07,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:29:07,707 INFO L87 Difference]: Start difference. First operand 678 states and 868 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:10,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:29:10,846 INFO L93 Difference]: Finished difference Result 1358 states and 1766 transitions. [2022-11-25 23:29:10,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:29:10,846 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-25 23:29:10,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:29:10,848 INFO L225 Difference]: With dead ends: 1358 [2022-11-25 23:29:10,848 INFO L226 Difference]: Without dead ends: 1230 [2022-11-25 23:29:10,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:29:10,848 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 1866 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1866 SdHoareTripleChecker+Valid, 1767 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:29:10,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1866 Valid, 1767 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:29:10,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2022-11-25 23:29:11,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 678. [2022-11-25 23:29:11,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 662 states have (on average 1.3081570996978853) internal successors, (866), 677 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:11,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 866 transitions. [2022-11-25 23:29:11,492 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 866 transitions. Word has length 114 [2022-11-25 23:29:11,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:29:11,492 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 866 transitions. [2022-11-25 23:29:11,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:11,493 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 866 transitions. [2022-11-25 23:29:11,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 23:29:11,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:29:11,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:29:11,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-11-25 23:29:11,494 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:29:11,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:29:11,495 INFO L85 PathProgramCache]: Analyzing trace with hash -678837400, now seen corresponding path program 1 times [2022-11-25 23:29:11,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:29:11,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56440721] [2022-11-25 23:29:11,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:11,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:29:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:11,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:29:11,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:29:11,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56440721] [2022-11-25 23:29:11,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56440721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:29:11,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:29:11,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:29:11,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073153564] [2022-11-25 23:29:11,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:29:11,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:29:11,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:29:11,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:29:11,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:29:11,772 INFO L87 Difference]: Start difference. First operand 678 states and 866 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:14,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:29:14,840 INFO L93 Difference]: Finished difference Result 1310 states and 1691 transitions. [2022-11-25 23:29:14,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:29:14,840 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-25 23:29:14,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:29:14,841 INFO L225 Difference]: With dead ends: 1310 [2022-11-25 23:29:14,841 INFO L226 Difference]: Without dead ends: 1198 [2022-11-25 23:29:14,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:29:14,842 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 1648 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1648 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:29:14,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1648 Valid, 1639 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:29:14,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2022-11-25 23:29:15,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 678. [2022-11-25 23:29:15,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 662 states have (on average 1.3051359516616314) internal successors, (864), 677 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:15,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 864 transitions. [2022-11-25 23:29:15,373 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 864 transitions. Word has length 114 [2022-11-25 23:29:15,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:29:15,374 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 864 transitions. [2022-11-25 23:29:15,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:15,374 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 864 transitions. [2022-11-25 23:29:15,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 23:29:15,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:29:15,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:29:15,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-11-25 23:29:15,375 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:29:15,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:29:15,375 INFO L85 PathProgramCache]: Analyzing trace with hash -168278721, now seen corresponding path program 1 times [2022-11-25 23:29:15,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:29:15,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038231578] [2022-11-25 23:29:15,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:15,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:29:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:15,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:29:15,625 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:29:15,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038231578] [2022-11-25 23:29:15,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038231578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:29:15,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:29:15,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:29:15,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718806659] [2022-11-25 23:29:15,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:29:15,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:29:15,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:29:15,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:29:15,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:29:15,627 INFO L87 Difference]: Start difference. First operand 678 states and 864 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:18,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:29:18,967 INFO L93 Difference]: Finished difference Result 1306 states and 1684 transitions. [2022-11-25 23:29:18,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:29:18,968 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-25 23:29:18,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:29:18,969 INFO L225 Difference]: With dead ends: 1306 [2022-11-25 23:29:18,969 INFO L226 Difference]: Without dead ends: 1198 [2022-11-25 23:29:18,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:29:18,970 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 1233 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 1557 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 2030 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:29:18,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1233 Valid, 2030 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1557 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 23:29:18,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2022-11-25 23:29:19,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 678. [2022-11-25 23:29:19,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 662 states have (on average 1.3021148036253776) internal successors, (862), 677 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:19,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 862 transitions. [2022-11-25 23:29:19,630 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 862 transitions. Word has length 114 [2022-11-25 23:29:19,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:29:19,630 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 862 transitions. [2022-11-25 23:29:19,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:19,630 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 862 transitions. [2022-11-25 23:29:19,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 23:29:19,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:29:19,631 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:29:19,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-11-25 23:29:19,631 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:29:19,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:29:19,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1433973975, now seen corresponding path program 1 times [2022-11-25 23:29:19,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:29:19,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949594983] [2022-11-25 23:29:19,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:19,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:29:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:19,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:29:19,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:29:19,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949594983] [2022-11-25 23:29:19,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949594983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:29:19,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:29:19,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:29:19,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676717335] [2022-11-25 23:29:19,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:29:19,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:29:19,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:29:19,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:29:19,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:29:19,865 INFO L87 Difference]: Start difference. First operand 678 states and 862 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:23,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:29:23,133 INFO L93 Difference]: Finished difference Result 1310 states and 1687 transitions. [2022-11-25 23:29:23,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:29:23,134 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-25 23:29:23,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:29:23,135 INFO L225 Difference]: With dead ends: 1310 [2022-11-25 23:29:23,135 INFO L226 Difference]: Without dead ends: 1198 [2022-11-25 23:29:23,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:29:23,135 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 1172 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 1835 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:29:23,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1172 Valid, 1835 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 23:29:23,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2022-11-25 23:29:23,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 678. [2022-11-25 23:29:23,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 662 states have (on average 1.299093655589124) internal successors, (860), 677 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:23,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 860 transitions. [2022-11-25 23:29:23,830 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 860 transitions. Word has length 114 [2022-11-25 23:29:23,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:29:23,830 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 860 transitions. [2022-11-25 23:29:23,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:23,830 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 860 transitions. [2022-11-25 23:29:23,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 23:29:23,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:29:23,831 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:29:23,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-11-25 23:29:23,831 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:29:23,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:29:23,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1390479784, now seen corresponding path program 1 times [2022-11-25 23:29:23,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:29:23,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871817634] [2022-11-25 23:29:23,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:23,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:29:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:24,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:29:24,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:29:24,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871817634] [2022-11-25 23:29:24,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871817634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:29:24,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:29:24,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:29:24,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064522041] [2022-11-25 23:29:24,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:29:24,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:29:24,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:29:24,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:29:24,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:29:24,075 INFO L87 Difference]: Start difference. First operand 678 states and 860 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:27,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:29:27,411 INFO L93 Difference]: Finished difference Result 1306 states and 1678 transitions. [2022-11-25 23:29:27,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:29:27,411 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-25 23:29:27,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:29:27,413 INFO L225 Difference]: With dead ends: 1306 [2022-11-25 23:29:27,413 INFO L226 Difference]: Without dead ends: 1198 [2022-11-25 23:29:27,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:29:27,413 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 1770 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1770 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:29:27,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1770 Valid, 1668 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:29:27,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2022-11-25 23:29:27,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 678. [2022-11-25 23:29:27,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 662 states have (on average 1.29607250755287) internal successors, (858), 677 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:27,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 858 transitions. [2022-11-25 23:29:27,939 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 858 transitions. Word has length 114 [2022-11-25 23:29:27,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:29:27,939 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 858 transitions. [2022-11-25 23:29:27,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:27,940 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 858 transitions. [2022-11-25 23:29:27,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 23:29:27,940 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:29:27,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:29:27,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-11-25 23:29:27,941 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:29:27,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:29:27,942 INFO L85 PathProgramCache]: Analyzing trace with hash 124901704, now seen corresponding path program 1 times [2022-11-25 23:29:27,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:29:27,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665462316] [2022-11-25 23:29:27,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:27,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:29:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:28,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:29:28,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:29:28,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665462316] [2022-11-25 23:29:28,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665462316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:29:28,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:29:28,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 23:29:28,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688660288] [2022-11-25 23:29:28,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:29:28,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 23:29:28,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:29:28,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 23:29:28,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:29:28,439 INFO L87 Difference]: Start difference. First operand 678 states and 858 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:34,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:29:34,525 INFO L93 Difference]: Finished difference Result 1828 states and 2378 transitions. [2022-11-25 23:29:34,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:29:34,525 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-25 23:29:34,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:29:34,527 INFO L225 Difference]: With dead ends: 1828 [2022-11-25 23:29:34,527 INFO L226 Difference]: Without dead ends: 1716 [2022-11-25 23:29:34,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-25 23:29:34,529 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 3327 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 1614 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3327 SdHoareTripleChecker+Valid, 1811 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:29:34,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3327 Valid, 1811 Invalid, 1732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1614 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 23:29:34,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2022-11-25 23:29:35,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 686. [2022-11-25 23:29:35,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 670 states have (on average 1.2925373134328357) internal successors, (866), 685 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:35,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 866 transitions. [2022-11-25 23:29:35,151 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 866 transitions. Word has length 114 [2022-11-25 23:29:35,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:29:35,151 INFO L495 AbstractCegarLoop]: Abstraction has 686 states and 866 transitions. [2022-11-25 23:29:35,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:35,151 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 866 transitions. [2022-11-25 23:29:35,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 23:29:35,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:29:35,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:29:35,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-11-25 23:29:35,153 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:29:35,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:29:35,153 INFO L85 PathProgramCache]: Analyzing trace with hash 2039173860, now seen corresponding path program 1 times [2022-11-25 23:29:35,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:29:35,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609307148] [2022-11-25 23:29:35,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:35,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:29:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:35,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:29:35,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:29:35,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609307148] [2022-11-25 23:29:35,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609307148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:29:35,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:29:35,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 23:29:35,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018182694] [2022-11-25 23:29:35,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:29:35,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 23:29:35,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:29:35,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 23:29:35,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:29:35,557 INFO L87 Difference]: Start difference. First operand 686 states and 866 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:41,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:29:41,865 INFO L93 Difference]: Finished difference Result 1834 states and 2386 transitions. [2022-11-25 23:29:41,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:29:41,866 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-25 23:29:41,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:29:41,868 INFO L225 Difference]: With dead ends: 1834 [2022-11-25 23:29:41,868 INFO L226 Difference]: Without dead ends: 1726 [2022-11-25 23:29:41,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-25 23:29:41,869 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 3546 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 1840 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3546 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 1964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:29:41,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3546 Valid, 2075 Invalid, 1964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1840 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-25 23:29:41,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2022-11-25 23:29:42,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 694. [2022-11-25 23:29:42,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 678 states have (on average 1.289085545722714) internal successors, (874), 693 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:42,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 874 transitions. [2022-11-25 23:29:42,532 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 874 transitions. Word has length 114 [2022-11-25 23:29:42,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:29:42,532 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 874 transitions. [2022-11-25 23:29:42,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:42,533 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 874 transitions. [2022-11-25 23:29:42,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 23:29:42,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:29:42,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:29:42,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-11-25 23:29:42,534 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:29:42,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:29:42,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1742591701, now seen corresponding path program 1 times [2022-11-25 23:29:42,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:29:42,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440807981] [2022-11-25 23:29:42,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:42,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:29:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:43,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:29:43,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:29:43,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440807981] [2022-11-25 23:29:43,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440807981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:29:43,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:29:43,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 23:29:43,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819860586] [2022-11-25 23:29:43,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:29:43,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 23:29:43,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:29:43,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 23:29:43,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 23:29:43,234 INFO L87 Difference]: Start difference. First operand 694 states and 874 transitions. Second operand has 13 states, 13 states have (on average 8.76923076923077) internal successors, (114), 12 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:47,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:29:47,510 INFO L93 Difference]: Finished difference Result 2098 states and 2714 transitions. [2022-11-25 23:29:47,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 23:29:47,510 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.76923076923077) internal successors, (114), 12 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-25 23:29:47,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:29:47,512 INFO L225 Difference]: With dead ends: 2098 [2022-11-25 23:29:47,512 INFO L226 Difference]: Without dead ends: 1768 [2022-11-25 23:29:47,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-25 23:29:47,513 INFO L413 NwaCegarLoop]: 1092 mSDtfsCounter, 2191 mSDsluCounter, 6714 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 7806 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:29:47,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2191 Valid, 7806 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:29:47,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2022-11-25 23:29:48,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 468. [2022-11-25 23:29:48,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 457 states have (on average 1.2713347921225382) internal successors, (581), 467 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:48,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 581 transitions. [2022-11-25 23:29:48,040 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 581 transitions. Word has length 114 [2022-11-25 23:29:48,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:29:48,040 INFO L495 AbstractCegarLoop]: Abstraction has 468 states and 581 transitions. [2022-11-25 23:29:48,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.76923076923077) internal successors, (114), 12 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:48,040 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 581 transitions. [2022-11-25 23:29:48,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-25 23:29:48,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:29:48,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:29:48,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-11-25 23:29:48,041 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:29:48,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:29:48,041 INFO L85 PathProgramCache]: Analyzing trace with hash -673900795, now seen corresponding path program 1 times [2022-11-25 23:29:48,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:29:48,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36947092] [2022-11-25 23:29:48,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:48,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:29:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:48,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:29:48,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:29:48,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36947092] [2022-11-25 23:29:48,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36947092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:29:48,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:29:48,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:29:48,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037846778] [2022-11-25 23:29:48,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:29:48,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:29:48,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:29:48,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:29:48,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:29:48,992 INFO L87 Difference]: Start difference. First operand 468 states and 581 transitions. Second operand has 16 states, 16 states have (on average 7.25) internal successors, (116), 15 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:52,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:29:52,561 INFO L93 Difference]: Finished difference Result 992 states and 1229 transitions. [2022-11-25 23:29:52,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 23:29:52,561 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.25) internal successors, (116), 15 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2022-11-25 23:29:52,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:29:52,562 INFO L225 Difference]: With dead ends: 992 [2022-11-25 23:29:52,562 INFO L226 Difference]: Without dead ends: 884 [2022-11-25 23:29:52,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=226, Invalid=766, Unknown=0, NotChecked=0, Total=992 [2022-11-25 23:29:52,563 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 3066 mSDsluCounter, 2467 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3066 SdHoareTripleChecker+Valid, 2851 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:29:52,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3066 Valid, 2851 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 23:29:52,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2022-11-25 23:29:53,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 466. [2022-11-25 23:29:53,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 455 states have (on average 1.268131868131868) internal successors, (577), 465 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:53,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 577 transitions. [2022-11-25 23:29:53,145 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 577 transitions. Word has length 116 [2022-11-25 23:29:53,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:29:53,145 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 577 transitions. [2022-11-25 23:29:53,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.25) internal successors, (116), 15 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:53,146 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 577 transitions. [2022-11-25 23:29:53,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-25 23:29:53,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:29:53,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:29:53,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-11-25 23:29:53,146 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:29:53,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:29:53,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1840549353, now seen corresponding path program 1 times [2022-11-25 23:29:53,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:29:53,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447023111] [2022-11-25 23:29:53,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:29:53,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:29:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:56,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:29:56,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:29:56,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447023111] [2022-11-25 23:29:56,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447023111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:29:56,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:29:56,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2022-11-25 23:29:56,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882059974] [2022-11-25 23:29:56,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:29:56,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-25 23:29:56,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:29:56,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-25 23:29:56,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1312, Unknown=0, NotChecked=0, Total=1406 [2022-11-25 23:29:56,228 INFO L87 Difference]: Start difference. First operand 466 states and 577 transitions. Second operand has 38 states, 38 states have (on average 3.0526315789473686) internal successors, (116), 37 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:04,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:04,856 INFO L93 Difference]: Finished difference Result 732 states and 924 transitions. [2022-11-25 23:30:04,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-25 23:30:04,856 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.0526315789473686) internal successors, (116), 37 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2022-11-25 23:30:04,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:04,857 INFO L225 Difference]: With dead ends: 732 [2022-11-25 23:30:04,857 INFO L226 Difference]: Without dead ends: 621 [2022-11-25 23:30:04,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=630, Invalid=4340, Unknown=0, NotChecked=0, Total=4970 [2022-11-25 23:30:04,858 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 1484 mSDsluCounter, 7592 mSDsCounter, 0 mSdLazyCounter, 4623 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 7909 SdHoareTripleChecker+Invalid, 4625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:04,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 7909 Invalid, 4625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4623 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-25 23:30:04,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2022-11-25 23:30:05,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 490. [2022-11-25 23:30:05,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 479 states have (on average 1.267223382045929) internal successors, (607), 489 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:05,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 607 transitions. [2022-11-25 23:30:05,431 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 607 transitions. Word has length 116 [2022-11-25 23:30:05,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:05,431 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 607 transitions. [2022-11-25 23:30:05,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.0526315789473686) internal successors, (116), 37 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:05,432 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 607 transitions. [2022-11-25 23:30:05,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-25 23:30:05,432 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:05,433 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:05,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-11-25 23:30:05,433 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:30:05,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:05,433 INFO L85 PathProgramCache]: Analyzing trace with hash -615531059, now seen corresponding path program 1 times [2022-11-25 23:30:05,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:05,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256419225] [2022-11-25 23:30:05,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:05,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:06,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:06,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:06,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256419225] [2022-11-25 23:30:06,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256419225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:06,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:06,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 23:30:06,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053745157] [2022-11-25 23:30:06,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:06,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:30:06,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:06,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:30:06,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:30:06,064 INFO L87 Difference]: Start difference. First operand 490 states and 607 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) [2022-11-25 23:30:10,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:10,127 INFO L93 Difference]: Finished difference Result 1280 states and 1649 transitions. [2022-11-25 23:30:10,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:30:10,128 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 [2022-11-25 23:30:10,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:10,129 INFO L225 Difference]: With dead ends: 1280 [2022-11-25 23:30:10,129 INFO L226 Difference]: Without dead ends: 1154 [2022-11-25 23:30:10,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-25 23:30:10,130 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 1708 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1708 SdHoareTripleChecker+Valid, 3332 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:10,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1708 Valid, 3332 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 23:30:10,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2022-11-25 23:30:10,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 468. [2022-11-25 23:30:10,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 459 states have (on average 1.2570806100217864) internal successors, (577), 467 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:10,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 577 transitions. [2022-11-25 23:30:10,718 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 577 transitions. Word has length 116 [2022-11-25 23:30:10,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:10,718 INFO L495 AbstractCegarLoop]: Abstraction has 468 states and 577 transitions. [2022-11-25 23:30:10,718 INFO L496 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) [2022-11-25 23:30:10,718 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 577 transitions. [2022-11-25 23:30:10,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-25 23:30:10,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:10,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:10,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-11-25 23:30:10,719 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:30:10,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:10,720 INFO L85 PathProgramCache]: Analyzing trace with hash 736410642, now seen corresponding path program 1 times [2022-11-25 23:30:10,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:10,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657815850] [2022-11-25 23:30:10,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:10,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:11,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:11,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:11,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657815850] [2022-11-25 23:30:11,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657815850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:11,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:11,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 23:30:11,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619189528] [2022-11-25 23:30:11,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:11,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 23:30:11,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:11,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 23:30:11,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 23:30:11,369 INFO L87 Difference]: Start difference. First operand 468 states and 577 transitions. Second operand has 13 states, 13 states have (on average 8.923076923076923) internal successors, (116), 12 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:15,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:15,608 INFO L93 Difference]: Finished difference Result 1428 states and 1835 transitions. [2022-11-25 23:30:15,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 23:30:15,609 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.923076923076923) internal successors, (116), 12 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2022-11-25 23:30:15,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:15,610 INFO L225 Difference]: With dead ends: 1428 [2022-11-25 23:30:15,610 INFO L226 Difference]: Without dead ends: 1212 [2022-11-25 23:30:15,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-25 23:30:15,610 INFO L413 NwaCegarLoop]: 687 mSDtfsCounter, 1670 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1670 SdHoareTripleChecker+Valid, 4644 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:15,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1670 Valid, 4644 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 23:30:15,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2022-11-25 23:30:16,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 356. [2022-11-25 23:30:16,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 351 states have (on average 1.227920227920228) internal successors, (431), 355 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:16,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 431 transitions. [2022-11-25 23:30:16,168 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 431 transitions. Word has length 116 [2022-11-25 23:30:16,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:16,169 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 431 transitions. [2022-11-25 23:30:16,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.923076923076923) internal successors, (116), 12 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:16,169 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 431 transitions. [2022-11-25 23:30:16,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-25 23:30:16,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:16,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:16,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-11-25 23:30:16,170 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:30:16,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:16,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1606326384, now seen corresponding path program 1 times [2022-11-25 23:30:16,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:16,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044249398] [2022-11-25 23:30:16,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:16,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:17,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:17,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:17,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044249398] [2022-11-25 23:30:17,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044249398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:17,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:17,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-25 23:30:17,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895173346] [2022-11-25 23:30:17,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:17,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 23:30:17,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:17,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 23:30:17,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:30:17,284 INFO L87 Difference]: Start difference. First operand 356 states and 431 transitions. Second operand has 17 states, 17 states have (on average 6.882352941176471) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:21,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:21,851 INFO L93 Difference]: Finished difference Result 989 states and 1260 transitions. [2022-11-25 23:30:21,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 23:30:21,852 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.882352941176471) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-11-25 23:30:21,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:21,853 INFO L225 Difference]: With dead ends: 989 [2022-11-25 23:30:21,853 INFO L226 Difference]: Without dead ends: 837 [2022-11-25 23:30:21,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=253, Invalid=937, Unknown=0, NotChecked=0, Total=1190 [2022-11-25 23:30:21,854 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 1547 mSDsluCounter, 3532 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 4005 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:21,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1547 Valid, 4005 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1033 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:30:21,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2022-11-25 23:30:22,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 312. [2022-11-25 23:30:22,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 308 states have (on average 1.2077922077922079) internal successors, (372), 311 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:22,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 372 transitions. [2022-11-25 23:30:22,405 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 372 transitions. Word has length 117 [2022-11-25 23:30:22,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:22,405 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 372 transitions. [2022-11-25 23:30:22,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.882352941176471) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:22,405 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 372 transitions. [2022-11-25 23:30:22,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-25 23:30:22,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:22,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:22,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-11-25 23:30:22,406 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:30:22,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:22,406 INFO L85 PathProgramCache]: Analyzing trace with hash -2011872188, now seen corresponding path program 1 times [2022-11-25 23:30:22,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:22,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229074926] [2022-11-25 23:30:22,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:22,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:22,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:22,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:22,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229074926] [2022-11-25 23:30:22,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229074926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:22,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:22,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:30:22,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524657186] [2022-11-25 23:30:22,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:22,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:30:22,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:22,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:30:22,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:30:22,636 INFO L87 Difference]: Start difference. First operand 312 states and 372 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:25,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:25,135 INFO L93 Difference]: Finished difference Result 706 states and 888 transitions. [2022-11-25 23:30:25,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:30:25,135 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-11-25 23:30:25,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:25,136 INFO L225 Difference]: With dead ends: 706 [2022-11-25 23:30:25,136 INFO L226 Difference]: Without dead ends: 572 [2022-11-25 23:30:25,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:30:25,136 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 977 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:25,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 834 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 23:30:25,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-11-25 23:30:25,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 312. [2022-11-25 23:30:25,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 308 states have (on average 1.2012987012987013) internal successors, (370), 311 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:25,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 370 transitions. [2022-11-25 23:30:25,682 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 370 transitions. Word has length 117 [2022-11-25 23:30:25,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:25,682 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 370 transitions. [2022-11-25 23:30:25,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:25,682 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 370 transitions. [2022-11-25 23:30:25,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-25 23:30:25,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:25,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:25,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-11-25 23:30:25,683 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:30:25,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:25,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1404372773, now seen corresponding path program 1 times [2022-11-25 23:30:25,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:25,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220129701] [2022-11-25 23:30:25,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:25,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:26,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:26,291 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:26,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220129701] [2022-11-25 23:30:26,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220129701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:26,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:26,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 23:30:26,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791137616] [2022-11-25 23:30:26,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:26,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:30:26,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:26,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:30:26,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:30:26,292 INFO L87 Difference]: Start difference. First operand 312 states and 370 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) [2022-11-25 23:30:28,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:28,141 INFO L93 Difference]: Finished difference Result 509 states and 625 transitions. [2022-11-25 23:30:28,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 23:30:28,142 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 [2022-11-25 23:30:28,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:28,142 INFO L225 Difference]: With dead ends: 509 [2022-11-25 23:30:28,142 INFO L226 Difference]: Without dead ends: 452 [2022-11-25 23:30:28,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:30:28,143 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 983 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:28,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 1453 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:30:28,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-11-25 23:30:28,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 298. [2022-11-25 23:30:28,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 295 states have (on average 1.1966101694915254) internal successors, (353), 297 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:28,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 353 transitions. [2022-11-25 23:30:28,699 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 353 transitions. Word has length 118 [2022-11-25 23:30:28,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:28,700 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 353 transitions. [2022-11-25 23:30:28,700 INFO L496 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) [2022-11-25 23:30:28,700 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 353 transitions. [2022-11-25 23:30:28,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-25 23:30:28,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:28,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:28,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-11-25 23:30:28,701 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:30:28,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:28,701 INFO L85 PathProgramCache]: Analyzing trace with hash -735370007, now seen corresponding path program 1 times [2022-11-25 23:30:28,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:28,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199354283] [2022-11-25 23:30:28,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:28,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:28,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:28,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:28,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199354283] [2022-11-25 23:30:28,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199354283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:28,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:28,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:30:28,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026740825] [2022-11-25 23:30:28,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:28,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:30:28,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:28,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:30:28,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:30:28,948 INFO L87 Difference]: Start difference. First operand 298 states and 353 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:30,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:30,788 INFO L93 Difference]: Finished difference Result 445 states and 540 transitions. [2022-11-25 23:30:30,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 23:30:30,788 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-11-25 23:30:30,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:30,789 INFO L225 Difference]: With dead ends: 445 [2022-11-25 23:30:30,789 INFO L226 Difference]: Without dead ends: 438 [2022-11-25 23:30:30,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:30:30,790 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 498 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:30,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 679 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:30:30,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2022-11-25 23:30:31,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 298. [2022-11-25 23:30:31,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 295 states have (on average 1.193220338983051) internal successors, (352), 297 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:31,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 352 transitions. [2022-11-25 23:30:31,337 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 352 transitions. Word has length 118 [2022-11-25 23:30:31,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:31,337 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 352 transitions. [2022-11-25 23:30:31,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:31,338 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 352 transitions. [2022-11-25 23:30:31,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-25 23:30:31,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:31,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:31,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-11-25 23:30:31,338 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:30:31,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:31,339 INFO L85 PathProgramCache]: Analyzing trace with hash -2078533446, now seen corresponding path program 1 times [2022-11-25 23:30:31,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:31,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388046201] [2022-11-25 23:30:31,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:31,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:31,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:31,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:31,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388046201] [2022-11-25 23:30:31,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388046201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:31,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:31,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 23:30:31,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490726109] [2022-11-25 23:30:31,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:31,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:30:31,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:31,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:30:31,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:30:31,997 INFO L87 Difference]: Start difference. First operand 298 states and 352 transitions. Second operand has 12 states, 12 states have (on average 9.916666666666666) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:34,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:34,825 INFO L93 Difference]: Finished difference Result 664 states and 832 transitions. [2022-11-25 23:30:34,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:30:34,825 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.916666666666666) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2022-11-25 23:30:34,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:34,826 INFO L225 Difference]: With dead ends: 664 [2022-11-25 23:30:34,826 INFO L226 Difference]: Without dead ends: 658 [2022-11-25 23:30:34,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-25 23:30:34,827 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 1110 mSDsluCounter, 1298 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:34,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 1689 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:30:34,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-11-25 23:30:35,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 292. [2022-11-25 23:30:35,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 290 states have (on average 1.1896551724137931) internal successors, (345), 291 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:35,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 345 transitions. [2022-11-25 23:30:35,379 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 345 transitions. Word has length 119 [2022-11-25 23:30:35,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:35,379 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 345 transitions. [2022-11-25 23:30:35,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.916666666666666) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:35,380 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 345 transitions. [2022-11-25 23:30:35,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-25 23:30:35,380 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:35,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:35,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-11-25 23:30:35,380 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:30:35,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:35,381 INFO L85 PathProgramCache]: Analyzing trace with hash -899871879, now seen corresponding path program 1 times [2022-11-25 23:30:35,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:35,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067755875] [2022-11-25 23:30:35,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:35,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:36,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:36,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:36,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067755875] [2022-11-25 23:30:36,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067755875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:36,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:36,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 23:30:36,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910315490] [2022-11-25 23:30:36,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:36,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 23:30:36,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:36,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 23:30:36,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:30:36,416 INFO L87 Difference]: Start difference. First operand 292 states and 345 transitions. Second operand has 16 states, 16 states have (on average 7.5) internal successors, (120), 15 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:39,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:39,771 INFO L93 Difference]: Finished difference Result 597 states and 738 transitions. [2022-11-25 23:30:39,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-25 23:30:39,772 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.5) internal successors, (120), 15 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-11-25 23:30:39,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:39,773 INFO L225 Difference]: With dead ends: 597 [2022-11-25 23:30:39,773 INFO L226 Difference]: Without dead ends: 576 [2022-11-25 23:30:39,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=249, Invalid=873, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 23:30:39,774 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 930 mSDsluCounter, 2328 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 2647 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:39,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [930 Valid, 2647 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 23:30:39,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2022-11-25 23:30:40,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 274. [2022-11-25 23:30:40,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 273 states have (on average 1.1904761904761905) internal successors, (325), 273 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:40,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 325 transitions. [2022-11-25 23:30:40,333 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 325 transitions. Word has length 120 [2022-11-25 23:30:40,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:40,333 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 325 transitions. [2022-11-25 23:30:40,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.5) internal successors, (120), 15 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:40,334 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 325 transitions. [2022-11-25 23:30:40,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-25 23:30:40,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:40,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:40,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-11-25 23:30:40,334 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:30:40,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:40,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1184257751, now seen corresponding path program 1 times [2022-11-25 23:30:40,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:40,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057897649] [2022-11-25 23:30:40,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:40,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:40,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:40,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:40,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057897649] [2022-11-25 23:30:40,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057897649] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:40,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:40,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:30:40,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767191277] [2022-11-25 23:30:40,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:40,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:30:40,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:40,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:30:40,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:40,460 INFO L87 Difference]: Start difference. First operand 274 states and 325 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:41,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:41,398 INFO L93 Difference]: Finished difference Result 386 states and 475 transitions. [2022-11-25 23:30:41,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:30:41,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2022-11-25 23:30:41,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:41,399 INFO L225 Difference]: With dead ends: 386 [2022-11-25 23:30:41,399 INFO L226 Difference]: Without dead ends: 333 [2022-11-25 23:30:41,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:41,400 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 83 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:41,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 392 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:30:41,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-11-25 23:30:42,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 323. [2022-11-25 23:30:42,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 322 states have (on average 1.2111801242236024) internal successors, (390), 322 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:42,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 390 transitions. [2022-11-25 23:30:42,204 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 390 transitions. Word has length 139 [2022-11-25 23:30:42,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:42,205 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 390 transitions. [2022-11-25 23:30:42,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:42,205 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 390 transitions. [2022-11-25 23:30:42,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-25 23:30:42,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:42,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:42,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-11-25 23:30:42,206 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:30:42,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:42,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1527983402, now seen corresponding path program 1 times [2022-11-25 23:30:42,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:42,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71297230] [2022-11-25 23:30:42,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:42,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:42,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:42,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:42,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71297230] [2022-11-25 23:30:42,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71297230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:42,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:42,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:30:42,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646678469] [2022-11-25 23:30:42,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:42,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:30:42,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:42,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:30:42,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:42,340 INFO L87 Difference]: Start difference. First operand 323 states and 390 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:43,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:43,954 INFO L93 Difference]: Finished difference Result 625 states and 796 transitions. [2022-11-25 23:30:43,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:30:43,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-11-25 23:30:43,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:43,955 INFO L225 Difference]: With dead ends: 625 [2022-11-25 23:30:43,955 INFO L226 Difference]: Without dead ends: 474 [2022-11-25 23:30:43,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:43,956 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 76 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:43,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 392 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:30:43,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-11-25 23:30:45,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 460. [2022-11-25 23:30:45,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 459 states have (on average 1.2505446623093681) internal successors, (574), 459 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:45,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 574 transitions. [2022-11-25 23:30:45,423 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 574 transitions. Word has length 142 [2022-11-25 23:30:45,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:45,423 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 574 transitions. [2022-11-25 23:30:45,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:45,423 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 574 transitions. [2022-11-25 23:30:45,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-25 23:30:45,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:45,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:45,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-11-25 23:30:45,424 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:30:45,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:45,424 INFO L85 PathProgramCache]: Analyzing trace with hash 529206757, now seen corresponding path program 1 times [2022-11-25 23:30:45,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:45,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7797488] [2022-11-25 23:30:45,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:45,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:45,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:45,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:45,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7797488] [2022-11-25 23:30:45,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7797488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:45,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:45,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:30:45,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030868024] [2022-11-25 23:30:45,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:45,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:30:45,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:45,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:30:45,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:45,598 INFO L87 Difference]: Start difference. First operand 460 states and 574 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:48,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:48,536 INFO L93 Difference]: Finished difference Result 1036 states and 1348 transitions. [2022-11-25 23:30:48,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:30:48,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2022-11-25 23:30:48,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:48,538 INFO L225 Difference]: With dead ends: 1036 [2022-11-25 23:30:48,538 INFO L226 Difference]: Without dead ends: 748 [2022-11-25 23:30:48,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:48,539 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 69 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:48,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 392 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:30:48,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2022-11-25 23:30:51,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 722. [2022-11-25 23:30:51,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 721 states have (on average 1.2815533980582525) internal successors, (924), 721 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:51,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 924 transitions. [2022-11-25 23:30:51,320 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 924 transitions. Word has length 145 [2022-11-25 23:30:51,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:51,320 INFO L495 AbstractCegarLoop]: Abstraction has 722 states and 924 transitions. [2022-11-25 23:30:51,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:51,320 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 924 transitions. [2022-11-25 23:30:51,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-25 23:30:51,321 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:51,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:51,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-11-25 23:30:51,322 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:30:51,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:51,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1168374263, now seen corresponding path program 1 times [2022-11-25 23:30:51,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:51,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753025558] [2022-11-25 23:30:51,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:51,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:51,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:51,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:51,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753025558] [2022-11-25 23:30:51,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753025558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:51,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:51,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:30:51,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118964905] [2022-11-25 23:30:51,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:51,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:30:51,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:51,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:30:51,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:51,451 INFO L87 Difference]: Start difference. First operand 722 states and 924 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:30:56,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:56,856 INFO L93 Difference]: Finished difference Result 1822 states and 2398 transitions. [2022-11-25 23:30:56,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:30:56,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2022-11-25 23:30:56,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:56,858 INFO L225 Difference]: With dead ends: 1822 [2022-11-25 23:30:56,859 INFO L226 Difference]: Without dead ends: 1272 [2022-11-25 23:30:56,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:56,860 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 62 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:56,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 392 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:30:56,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2022-11-25 23:31:02,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1222. [2022-11-25 23:31:02,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 1221 states have (on average 1.3005733005733007) internal successors, (1588), 1221 states have internal predecessors, (1588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:31:02,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1588 transitions. [2022-11-25 23:31:02,127 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1588 transitions. Word has length 148 [2022-11-25 23:31:02,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:31:02,127 INFO L495 AbstractCegarLoop]: Abstraction has 1222 states and 1588 transitions. [2022-11-25 23:31:02,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:31:02,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1588 transitions. [2022-11-25 23:31:02,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-25 23:31:02,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:31:02,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:31:02,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-11-25 23:31:02,129 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:31:02,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:31:02,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1220875874, now seen corresponding path program 1 times [2022-11-25 23:31:02,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:31:02,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174835142] [2022-11-25 23:31:02,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:02,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:31:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:31:02,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:31:02,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:31:02,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174835142] [2022-11-25 23:31:02,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174835142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:31:02,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:31:02,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:31:02,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470917819] [2022-11-25 23:31:02,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:31:02,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:31:02,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:31:02,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:31:02,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:31:02,331 INFO L87 Difference]: Start difference. First operand 1222 states and 1588 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:31:12,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:31:12,621 INFO L93 Difference]: Finished difference Result 3322 states and 4390 transitions. [2022-11-25 23:31:12,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:31:12,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2022-11-25 23:31:12,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:31:12,623 INFO L225 Difference]: With dead ends: 3322 [2022-11-25 23:31:12,624 INFO L226 Difference]: Without dead ends: 2272 [2022-11-25 23:31:12,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:31:12,625 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 55 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:31:12,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 392 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:31:12,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2022-11-25 23:31:22,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 2174. [2022-11-25 23:31:22,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2174 states, 2173 states have (on average 1.3087896916705015) internal successors, (2844), 2173 states have internal predecessors, (2844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:31:22,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 2844 transitions. [2022-11-25 23:31:22,725 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 2844 transitions. Word has length 151 [2022-11-25 23:31:22,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:31:22,725 INFO L495 AbstractCegarLoop]: Abstraction has 2174 states and 2844 transitions. [2022-11-25 23:31:22,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:31:22,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 2844 transitions. [2022-11-25 23:31:22,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-25 23:31:22,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:31:22,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:31:22,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-11-25 23:31:22,728 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:31:22,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:31:22,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1510968446, now seen corresponding path program 1 times [2022-11-25 23:31:22,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:31:22,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32657787] [2022-11-25 23:31:22,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:22,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:31:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:31:22,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:31:22,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:31:22,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32657787] [2022-11-25 23:31:22,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32657787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:31:22,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:31:22,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:31:22,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681255712] [2022-11-25 23:31:22,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:31:22,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:31:22,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:31:22,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:31:22,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:31:22,929 INFO L87 Difference]: Start difference. First operand 2174 states and 2844 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:31:42,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:31:42,779 INFO L93 Difference]: Finished difference Result 6178 states and 8158 transitions. [2022-11-25 23:31:42,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:31:42,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2022-11-25 23:31:42,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:31:42,785 INFO L225 Difference]: With dead ends: 6178 [2022-11-25 23:31:42,785 INFO L226 Difference]: Without dead ends: 4176 [2022-11-25 23:31:42,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:31:42,788 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 48 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:31:42,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 392 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:31:42,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4176 states. [2022-11-25 23:32:01,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4176 to 3982. [2022-11-25 23:32:01,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3982 states, 3981 states have (on average 1.3092187892489324) internal successors, (5212), 3981 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:32:01,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3982 states to 3982 states and 5212 transitions. [2022-11-25 23:32:01,676 INFO L78 Accepts]: Start accepts. Automaton has 3982 states and 5212 transitions. Word has length 154 [2022-11-25 23:32:01,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:32:01,676 INFO L495 AbstractCegarLoop]: Abstraction has 3982 states and 5212 transitions. [2022-11-25 23:32:01,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:32:01,677 INFO L276 IsEmpty]: Start isEmpty. Operand 3982 states and 5212 transitions. [2022-11-25 23:32:01,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-25 23:32:01,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:32:01,677 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:32:01,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-11-25 23:32:01,677 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:32:01,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:32:01,678 INFO L85 PathProgramCache]: Analyzing trace with hash 59275489, now seen corresponding path program 1 times [2022-11-25 23:32:01,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:32:01,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359474333] [2022-11-25 23:32:01,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:32:01,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:32:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:32:01,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:32:01,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:32:01,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359474333] [2022-11-25 23:32:01,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359474333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:32:01,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:32:01,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:32:01,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273793796] [2022-11-25 23:32:01,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:32:01,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:32:01,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:32:01,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:32:01,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:32:01,795 INFO L87 Difference]: Start difference. First operand 3982 states and 5212 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) [2022-11-25 23:32:39,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:32:39,103 INFO L93 Difference]: Finished difference Result 11602 states and 15262 transitions. [2022-11-25 23:32:39,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:32:39,104 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 [2022-11-25 23:32:39,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:32:39,111 INFO L225 Difference]: With dead ends: 11602 [2022-11-25 23:32:39,112 INFO L226 Difference]: Without dead ends: 7792 [2022-11-25 23:32:39,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:32:39,115 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 38 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:32:39,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 392 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:32:39,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7792 states. [2022-11-25 23:33:15,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7792 to 7406. [2022-11-25 23:33:15,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7406 states, 7405 states have (on average 1.3045239702903444) internal successors, (9660), 7405 states have internal predecessors, (9660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:33:15,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7406 states to 7406 states and 9660 transitions. [2022-11-25 23:33:15,297 INFO L78 Accepts]: Start accepts. Automaton has 7406 states and 9660 transitions. Word has length 157 [2022-11-25 23:33:15,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:33:15,297 INFO L495 AbstractCegarLoop]: Abstraction has 7406 states and 9660 transitions. [2022-11-25 23:33:15,297 INFO L496 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) [2022-11-25 23:33:15,297 INFO L276 IsEmpty]: Start isEmpty. Operand 7406 states and 9660 transitions. [2022-11-25 23:33:15,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-25 23:33:15,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:33:15,298 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:33:15,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-11-25 23:33:15,298 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:33:15,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:33:15,298 INFO L85 PathProgramCache]: Analyzing trace with hash -79513788, now seen corresponding path program 1 times [2022-11-25 23:33:15,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:33:15,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146484367] [2022-11-25 23:33:15,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:33:15,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:33:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:33:15,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:33:15,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:33:15,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146484367] [2022-11-25 23:33:15,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146484367] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:33:15,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:33:15,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 23:33:15,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359070237] [2022-11-25 23:33:15,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:33:15,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 23:33:15,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:33:15,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 23:33:15,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:33:15,502 INFO L87 Difference]: Start difference. First operand 7406 states and 9660 transitions. Second operand has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:35:07,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:35:07,583 INFO L93 Difference]: Finished difference Result 29917 states and 39321 transitions. [2022-11-25 23:35:07,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:35:07,584 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2022-11-25 23:35:07,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:35:07,613 INFO L225 Difference]: With dead ends: 29917 [2022-11-25 23:35:07,613 INFO L226 Difference]: Without dead ends: 22683 [2022-11-25 23:35:07,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2022-11-25 23:35:07,623 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 1570 mSDsluCounter, 2968 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 3158 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:35:07,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1570 Valid, 3158 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:35:07,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22683 states. [2022-11-25 23:35:58,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22683 to 10088. [2022-11-25 23:35:58,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10088 states, 10087 states have (on average 1.2996926737384753) internal successors, (13110), 10087 states have internal predecessors, (13110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:35:58,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10088 states to 10088 states and 13110 transitions. [2022-11-25 23:35:58,386 INFO L78 Accepts]: Start accepts. Automaton has 10088 states and 13110 transitions. Word has length 160 [2022-11-25 23:35:58,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:35:58,386 INFO L495 AbstractCegarLoop]: Abstraction has 10088 states and 13110 transitions. [2022-11-25 23:35:58,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:35:58,387 INFO L276 IsEmpty]: Start isEmpty. Operand 10088 states and 13110 transitions. [2022-11-25 23:35:58,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-25 23:35:58,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:35:58,387 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:35:58,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-11-25 23:35:58,387 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-25 23:35:58,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:35:58,388 INFO L85 PathProgramCache]: Analyzing trace with hash 462937350, now seen corresponding path program 1 times [2022-11-25 23:35:58,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:35:58,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076592593] [2022-11-25 23:35:58,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:35:58,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:35:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:35:58,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:35:58,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:35:58,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076592593] [2022-11-25 23:35:58,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076592593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:35:58,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:35:58,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 23:35:58,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866255072] [2022-11-25 23:35:58,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:35:58,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 23:35:58,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:35:58,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 23:35:58,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:35:58,777 INFO L87 Difference]: Start difference. First operand 10088 states and 13110 transitions. Second operand has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)