./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe772a5-2493-4d00-8584-844711824881/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe772a5-2493-4d00-8584-844711824881/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe772a5-2493-4d00-8584-844711824881/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe772a5-2493-4d00-8584-844711824881/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe772a5-2493-4d00-8584-844711824881/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe772a5-2493-4d00-8584-844711824881/bin/utaipan-gh47qXpMRh --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 438134aaa8cbf7b10a3435da62ff5e9b4dd424421597a948889467a2e9f2184b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 10:05:28,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:05:28,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:05:28,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:05:28,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:05:28,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:05:28,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:05:28,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:05:28,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:05:28,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:05:28,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:05:28,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:05:28,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:05:28,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:05:28,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:05:28,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:05:28,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:05:28,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:05:28,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:05:28,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:05:28,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:05:28,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:05:28,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:05:28,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:05:28,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:05:28,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:05:28,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:05:28,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:05:28,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:05:28,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:05:28,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:05:28,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:05:28,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:05:28,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:05:28,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:05:28,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:05:28,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:05:28,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:05:28,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:05:28,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:05:28,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:05:28,793 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe772a5-2493-4d00-8584-844711824881/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 10:05:28,821 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:05:28,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:05:28,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:05:28,826 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:05:28,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:05:28,827 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:05:28,827 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:05:28,827 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:05:28,827 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:05:28,827 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:05:28,827 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:05:28,828 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:05:28,828 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:05:28,828 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:05:28,828 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:05:28,828 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:05:28,828 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:05:28,828 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:05:28,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:05:28,829 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:05:28,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:05:28,829 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:05:28,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:05:28,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:05:28,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:05:28,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:05:28,829 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:05:28,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:05:28,829 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:05:28,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:05:28,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:05:28,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:05:28,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:05:28,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:05:28,830 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:05:28,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:05:28,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:05:28,830 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:05:28,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:05:28,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:05:28,831 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:05:28,831 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_3fe772a5-2493-4d00-8584-844711824881/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe772a5-2493-4d00-8584-844711824881/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 438134aaa8cbf7b10a3435da62ff5e9b4dd424421597a948889467a2e9f2184b [2022-12-14 10:05:29,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:05:29,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:05:29,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:05:29,023 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:05:29,023 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:05:29,024 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe772a5-2493-4d00-8584-844711824881/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2022-12-14 10:05:31,574 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:05:31,905 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:05:31,905 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2022-12-14 10:05:31,926 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe772a5-2493-4d00-8584-844711824881/bin/utaipan-gh47qXpMRh/data/7077430df/19201a55fed84e0fa7abfe3007cf9b1a/FLAGd2a276553 [2022-12-14 10:05:32,149 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe772a5-2493-4d00-8584-844711824881/bin/utaipan-gh47qXpMRh/data/7077430df/19201a55fed84e0fa7abfe3007cf9b1a [2022-12-14 10:05:32,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:05:32,153 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:05:32,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:05:32,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:05:32,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:05:32,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:05:32" (1/1) ... [2022-12-14 10:05:32,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10c42175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:05:32, skipping insertion in model container [2022-12-14 10:05:32,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:05:32" (1/1) ... [2022-12-14 10:05:32,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:05:32,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:05:32,666 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[17602,17615] [2022-12-14 10:05:32,689 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[22899,22912] [2022-12-14 10:05:32,696 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[24256,24269] [2022-12-14 10:05:32,701 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[25064,25077] [2022-12-14 10:05:32,711 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[26792,26805] [2022-12-14 10:05:32,718 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[27600,27613] [2022-12-14 10:05:32,726 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[28779,28792] [2022-12-14 10:05:32,744 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[31519,31532] [2022-12-14 10:05:32,751 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[32330,32343] [2022-12-14 10:05:32,760 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[33512,33525] [2022-12-14 10:05:32,774 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[35703,35716] [2022-12-14 10:05:32,795 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[39963,39976] [2022-12-14 10:05:32,800 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[40774,40787] [2022-12-14 10:05:32,807 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[41956,41969] [2022-12-14 10:05:32,819 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[44147,44160] [2022-12-14 10:05:32,835 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[47858,47871] [2022-12-14 10:05:32,865 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[54605,54618] [2022-12-14 10:05:32,870 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[55416,55429] [2022-12-14 10:05:32,875 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[56559,56572] [2022-12-14 10:05:32,887 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[58711,58724] [2022-12-14 10:05:32,905 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[62628,62641] [2022-12-14 10:05:32,936 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[69577,69590] [2022-12-14 10:05:32,989 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[82313,82326] [2022-12-14 10:05:32,994 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[83124,83137] [2022-12-14 10:05:32,999 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[84306,84319] [2022-12-14 10:05:33,008 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[86497,86510] [2022-12-14 10:05:33,023 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[90208,90221] [2022-12-14 10:05:33,048 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[96406,96419] [2022-12-14 10:05:33,093 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[106997,107010] [2022-12-14 10:05:33,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:05:33,692 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:05:33,781 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[17602,17615] [2022-12-14 10:05:33,804 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[22899,22912] [2022-12-14 10:05:33,814 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[24256,24269] [2022-12-14 10:05:33,818 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[25064,25077] [2022-12-14 10:05:33,824 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[26792,26805] [2022-12-14 10:05:33,828 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[27600,27613] [2022-12-14 10:05:33,833 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[28779,28792] [2022-12-14 10:05:33,851 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[31519,31532] [2022-12-14 10:05:33,855 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[32330,32343] [2022-12-14 10:05:33,860 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[33512,33525] [2022-12-14 10:05:33,868 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[35703,35716] [2022-12-14 10:05:33,881 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[39963,39976] [2022-12-14 10:05:33,885 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[40774,40787] [2022-12-14 10:05:33,889 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[41956,41969] [2022-12-14 10:05:33,897 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[44147,44160] [2022-12-14 10:05:33,912 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[47858,47871] [2022-12-14 10:05:33,932 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[54605,54618] [2022-12-14 10:05:33,935 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[55416,55429] [2022-12-14 10:05:33,940 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[56559,56572] [2022-12-14 10:05:33,948 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[58711,58724] [2022-12-14 10:05:33,963 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[62628,62641] [2022-12-14 10:05:33,988 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[69577,69590] [2022-12-14 10:05:34,025 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[82313,82326] [2022-12-14 10:05:34,029 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[83124,83137] [2022-12-14 10:05:34,033 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[84306,84319] [2022-12-14 10:05:34,041 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[86497,86510] [2022-12-14 10:05:34,053 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[90208,90221] [2022-12-14 10:05:34,071 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[96406,96419] [2022-12-14 10:05:34,099 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_3fe772a5-2493-4d00-8584-844711824881/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[106997,107010] [2022-12-14 10:05:34,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:05:34,574 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:05:34,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:05:34 WrapperNode [2022-12-14 10:05:34,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:05:34,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:05:34,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:05:34,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:05:34,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:05:34" (1/1) ... [2022-12-14 10:05:34,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:05:34" (1/1) ... [2022-12-14 10:05:34,724 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12601 [2022-12-14 10:05:34,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:05:34,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:05:34,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:05:34,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:05:34,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:05:34" (1/1) ... [2022-12-14 10:05:34,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:05:34" (1/1) ... [2022-12-14 10:05:34,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:05:34" (1/1) ... [2022-12-14 10:05:34,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:05:34" (1/1) ... [2022-12-14 10:05:34,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:05:34" (1/1) ... [2022-12-14 10:05:34,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:05:34" (1/1) ... [2022-12-14 10:05:34,862 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:05:34" (1/1) ... [2022-12-14 10:05:34,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:05:34" (1/1) ... [2022-12-14 10:05:34,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:05:34,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:05:34,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:05:34,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:05:34,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:05:34" (1/1) ... [2022-12-14 10:05:34,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:05:34,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe772a5-2493-4d00-8584-844711824881/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:05:34,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe772a5-2493-4d00-8584-844711824881/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:05:34,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fe772a5-2493-4d00-8584-844711824881/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:05:34,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:05:34,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:05:34,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:05:34,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:05:35,249 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:05:35,251 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:05:38,833 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:05:39,149 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:05:39,149 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 10:05:39,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:05:39 BoogieIcfgContainer [2022-12-14 10:05:39,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:05:39,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:05:39,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:05:39,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:05:39,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:05:32" (1/3) ... [2022-12-14 10:05:39,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a01107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:05:39, skipping insertion in model container [2022-12-14 10:05:39,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:05:34" (2/3) ... [2022-12-14 10:05:39,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a01107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:05:39, skipping insertion in model container [2022-12-14 10:05:39,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:05:39" (3/3) ... [2022-12-14 10:05:39,160 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2022-12-14 10:05:39,173 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:05:39,173 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2022-12-14 10:05:39,232 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:05:39,237 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;@135f2e2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:05:39,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-12-14 10:05:39,245 INFO L276 IsEmpty]: Start isEmpty. Operand has 2003 states, 1972 states have (on average 1.8676470588235294) internal successors, (3683), 2002 states have internal predecessors, (3683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:39,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-14 10:05:39,264 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:39,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:05:39,265 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:05:39,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:39,269 INFO L85 PathProgramCache]: Analyzing trace with hash -393314146, now seen corresponding path program 1 times [2022-12-14 10:05:39,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:39,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049527159] [2022-12-14 10:05:39,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:39,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:39,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:39,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:05:39,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:39,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049527159] [2022-12-14 10:05:39,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049527159] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:39,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:39,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:05:39,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660019042] [2022-12-14 10:05:39,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:39,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:05:39,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:39,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:05:39,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:05:39,707 INFO L87 Difference]: Start difference. First operand has 2003 states, 1972 states have (on average 1.8676470588235294) internal successors, (3683), 2002 states have internal predecessors, (3683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:40,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:40,670 INFO L93 Difference]: Finished difference Result 2936 states and 5221 transitions. [2022-12-14 10:05:40,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:05:40,672 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 [2022-12-14 10:05:40,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:40,685 INFO L225 Difference]: With dead ends: 2936 [2022-12-14 10:05:40,686 INFO L226 Difference]: Without dead ends: 1500 [2022-12-14 10:05:40,690 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 [2022-12-14 10:05:40,692 INFO L413 NwaCegarLoop]: 1756 mSDtfsCounter, 7840 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7840 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:40,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7840 Valid, 1796 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 10:05:40,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2022-12-14 10:05:40,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1500. [2022-12-14 10:05:40,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1471 states have (on average 1.3038749150237934) internal successors, (1918), 1499 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:40,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1918 transitions. [2022-12-14 10:05:40,763 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1918 transitions. Word has length 100 [2022-12-14 10:05:40,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:40,763 INFO L495 AbstractCegarLoop]: Abstraction has 1500 states and 1918 transitions. [2022-12-14 10:05:40,763 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) [2022-12-14 10:05:40,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1918 transitions. [2022-12-14 10:05:40,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-14 10:05:40,766 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:40,767 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:05:40,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:05:40,767 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:05:40,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:40,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1603541041, now seen corresponding path program 1 times [2022-12-14 10:05:40,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:40,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456241135] [2022-12-14 10:05:40,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:40,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:40,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:40,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:05:40,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:40,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456241135] [2022-12-14 10:05:40,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456241135] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:40,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:40,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:05:40,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358736297] [2022-12-14 10:05:40,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:40,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:05:40,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:40,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:05:40,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:05:40,946 INFO L87 Difference]: Start difference. First operand 1500 states and 1918 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) [2022-12-14 10:05:41,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:41,706 INFO L93 Difference]: Finished difference Result 2426 states and 3199 transitions. [2022-12-14 10:05:41,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:05:41,707 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 [2022-12-14 10:05:41,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:41,710 INFO L225 Difference]: With dead ends: 2426 [2022-12-14 10:05:41,710 INFO L226 Difference]: Without dead ends: 1241 [2022-12-14 10:05:41,712 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 [2022-12-14 10:05:41,713 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 4816 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4816 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:41,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4816 Valid, 921 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 10:05:41,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2022-12-14 10:05:41,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 1241. [2022-12-14 10:05:41,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 1212 states have (on average 1.3415841584158417) internal successors, (1626), 1240 states have internal predecessors, (1626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:41,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1626 transitions. [2022-12-14 10:05:41,756 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1626 transitions. Word has length 101 [2022-12-14 10:05:41,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:41,757 INFO L495 AbstractCegarLoop]: Abstraction has 1241 states and 1626 transitions. [2022-12-14 10:05:41,757 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) [2022-12-14 10:05:41,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1626 transitions. [2022-12-14 10:05:41,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-12-14 10:05:41,759 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:41,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:05:41,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:05:41,759 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:05:41,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:41,760 INFO L85 PathProgramCache]: Analyzing trace with hash 2013226204, now seen corresponding path program 1 times [2022-12-14 10:05:41,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:41,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950303143] [2022-12-14 10:05:41,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:41,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:41,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:05:41,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:41,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950303143] [2022-12-14 10:05:41,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950303143] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:41,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:41,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:05:41,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103796819] [2022-12-14 10:05:41,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:41,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:05:41,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:41,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:05:41,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:05:41,899 INFO L87 Difference]: Start difference. First operand 1241 states and 1626 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) [2022-12-14 10:05:42,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:42,620 INFO L93 Difference]: Finished difference Result 2167 states and 2906 transitions. [2022-12-14 10:05:42,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:05:42,620 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 [2022-12-14 10:05:42,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:42,626 INFO L225 Difference]: With dead ends: 2167 [2022-12-14 10:05:42,626 INFO L226 Difference]: Without dead ends: 1137 [2022-12-14 10:05:42,628 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 [2022-12-14 10:05:42,628 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 4370 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4370 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:42,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4370 Valid, 779 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 10:05:42,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2022-12-14 10:05:42,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1137. [2022-12-14 10:05:42,658 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) [2022-12-14 10:05:42,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1505 transitions. [2022-12-14 10:05:42,660 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1505 transitions. Word has length 102 [2022-12-14 10:05:42,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:42,660 INFO L495 AbstractCegarLoop]: Abstraction has 1137 states and 1505 transitions. [2022-12-14 10:05:42,661 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) [2022-12-14 10:05:42,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1505 transitions. [2022-12-14 10:05:42,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-14 10:05:42,663 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:42,663 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:05:42,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:05:42,664 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:05:42,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:42,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1623961495, now seen corresponding path program 1 times [2022-12-14 10:05:42,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:42,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770930052] [2022-12-14 10:05:42,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:42,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:42,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:05:42,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:42,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770930052] [2022-12-14 10:05:42,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770930052] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:42,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:42,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:05:42,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737382908] [2022-12-14 10:05:42,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:42,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:05:42,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:42,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:05:42,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:05:42,793 INFO L87 Difference]: Start difference. First operand 1137 states and 1505 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) [2022-12-14 10:05:43,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:43,267 INFO L93 Difference]: Finished difference Result 2063 states and 2784 transitions. [2022-12-14 10:05:43,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:05:43,267 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 [2022-12-14 10:05:43,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:43,269 INFO L225 Difference]: With dead ends: 2063 [2022-12-14 10:05:43,270 INFO L226 Difference]: Without dead ends: 1067 [2022-12-14 10:05:43,271 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 [2022-12-14 10:05:43,272 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 4177 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4177 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:43,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4177 Valid, 786 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 10:05:43,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2022-12-14 10:05:43,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1067. [2022-12-14 10:05:43,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1038 states have (on average 1.3737957610789981) internal successors, (1426), 1066 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:43,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1426 transitions. [2022-12-14 10:05:43,306 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1426 transitions. Word has length 103 [2022-12-14 10:05:43,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:43,307 INFO L495 AbstractCegarLoop]: Abstraction has 1067 states and 1426 transitions. [2022-12-14 10:05:43,307 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) [2022-12-14 10:05:43,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1426 transitions. [2022-12-14 10:05:43,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-14 10:05:43,309 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:43,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:05:43,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 10:05:43,309 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:05:43,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:43,310 INFO L85 PathProgramCache]: Analyzing trace with hash -301054445, now seen corresponding path program 1 times [2022-12-14 10:05:43,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:43,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804361098] [2022-12-14 10:05:43,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:43,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:43,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:05:43,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:43,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804361098] [2022-12-14 10:05:43,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804361098] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:43,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:43,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:05:43,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662765321] [2022-12-14 10:05:43,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:43,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:05:43,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:43,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:05:43,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:05:43,441 INFO L87 Difference]: Start difference. First operand 1067 states and 1426 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) [2022-12-14 10:05:43,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:43,999 INFO L93 Difference]: Finished difference Result 1993 states and 2704 transitions. [2022-12-14 10:05:43,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:05:43,999 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 [2022-12-14 10:05:43,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:44,002 INFO L225 Difference]: With dead ends: 1993 [2022-12-14 10:05:44,002 INFO L226 Difference]: Without dead ends: 1047 [2022-12-14 10:05:44,004 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 [2022-12-14 10:05:44,005 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 4015 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4015 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:44,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4015 Valid, 638 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 10:05:44,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2022-12-14 10:05:44,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1047. [2022-12-14 10:05:44,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1018 states have (on average 1.3762278978388998) internal successors, (1401), 1046 states have internal predecessors, (1401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:44,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1401 transitions. [2022-12-14 10:05:44,060 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1401 transitions. Word has length 104 [2022-12-14 10:05:44,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:44,060 INFO L495 AbstractCegarLoop]: Abstraction has 1047 states and 1401 transitions. [2022-12-14 10:05:44,060 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) [2022-12-14 10:05:44,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1401 transitions. [2022-12-14 10:05:44,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-12-14 10:05:44,062 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:44,062 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] [2022-12-14 10:05:44,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 10:05:44,062 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:05:44,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:44,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1267053726, now seen corresponding path program 1 times [2022-12-14 10:05:44,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:44,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623632175] [2022-12-14 10:05:44,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:44,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:44,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:05:44,229 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:44,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623632175] [2022-12-14 10:05:44,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623632175] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:44,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:44,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:05:44,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826588894] [2022-12-14 10:05:44,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:44,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:05:44,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:44,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:05:44,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:05:44,231 INFO L87 Difference]: Start difference. First operand 1047 states and 1401 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) [2022-12-14 10:05:44,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:44,789 INFO L93 Difference]: Finished difference Result 1973 states and 2678 transitions. [2022-12-14 10:05:44,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:05:44,789 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 [2022-12-14 10:05:44,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:44,794 INFO L225 Difference]: With dead ends: 1973 [2022-12-14 10:05:44,794 INFO L226 Difference]: Without dead ends: 1016 [2022-12-14 10:05:44,795 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 [2022-12-14 10:05:44,796 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 4027 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4027 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:44,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4027 Valid, 751 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 10:05:44,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2022-12-14 10:05:44,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1016. [2022-12-14 10:05:44,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 987 states have (on average 1.3850050658561297) internal successors, (1367), 1015 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:44,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1367 transitions. [2022-12-14 10:05:44,833 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1367 transitions. Word has length 105 [2022-12-14 10:05:44,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:44,833 INFO L495 AbstractCegarLoop]: Abstraction has 1016 states and 1367 transitions. [2022-12-14 10:05:44,833 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) [2022-12-14 10:05:44,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1367 transitions. [2022-12-14 10:05:44,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-12-14 10:05:44,835 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:44,835 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] [2022-12-14 10:05:44,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 10:05:44,835 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:05:44,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:44,836 INFO L85 PathProgramCache]: Analyzing trace with hash -396664639, now seen corresponding path program 1 times [2022-12-14 10:05:44,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:44,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259701966] [2022-12-14 10:05:44,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:44,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:44,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:05:44,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:44,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259701966] [2022-12-14 10:05:44,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259701966] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:44,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:44,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:05:44,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59000657] [2022-12-14 10:05:44,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:44,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:05:44,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:44,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:05:44,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:05:44,954 INFO L87 Difference]: Start difference. First operand 1016 states and 1367 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:45,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:45,569 INFO L93 Difference]: Finished difference Result 1942 states and 2643 transitions. [2022-12-14 10:05:45,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:05:45,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-12-14 10:05:45,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:45,572 INFO L225 Difference]: With dead ends: 1942 [2022-12-14 10:05:45,572 INFO L226 Difference]: Without dead ends: 1005 [2022-12-14 10:05:45,573 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 [2022-12-14 10:05:45,574 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 3941 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3941 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:45,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3941 Valid, 726 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 10:05:45,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2022-12-14 10:05:45,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 1005. [2022-12-14 10:05:45,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3872950819672132) internal successors, (1354), 1004 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:45,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1354 transitions. [2022-12-14 10:05:45,616 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1354 transitions. Word has length 106 [2022-12-14 10:05:45,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:45,617 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1354 transitions. [2022-12-14 10:05:45,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:45,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1354 transitions. [2022-12-14 10:05:45,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-12-14 10:05:45,618 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:45,619 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] [2022-12-14 10:05:45,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 10:05:45,619 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:05:45,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:45,619 INFO L85 PathProgramCache]: Analyzing trace with hash 10049727, now seen corresponding path program 1 times [2022-12-14 10:05:45,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:45,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401109787] [2022-12-14 10:05:45,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:45,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:46,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:05:46,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:46,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401109787] [2022-12-14 10:05:46,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401109787] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:46,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:46,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 10:05:46,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997606250] [2022-12-14 10:05:46,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:46,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 10:05:46,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:46,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 10:05:46,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-14 10:05:46,021 INFO L87 Difference]: Start difference. First operand 1005 states and 1354 transitions. Second operand has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:47,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:47,829 INFO L93 Difference]: Finished difference Result 1776 states and 2373 transitions. [2022-12-14 10:05:47,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 10:05:47,829 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2022-12-14 10:05:47,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:47,832 INFO L225 Difference]: With dead ends: 1776 [2022-12-14 10:05:47,832 INFO L226 Difference]: Without dead ends: 1655 [2022-12-14 10:05:47,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2022-12-14 10:05:47,833 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 5996 mSDsluCounter, 3937 mSDsCounter, 0 mSdLazyCounter, 4259 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5996 SdHoareTripleChecker+Valid, 4712 SdHoareTripleChecker+Invalid, 4262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:47,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5996 Valid, 4712 Invalid, 4262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4259 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 10:05:47,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2022-12-14 10:05:47,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1005. [2022-12-14 10:05:47,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3862704918032787) internal successors, (1353), 1004 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:47,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1353 transitions. [2022-12-14 10:05:47,890 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1353 transitions. Word has length 107 [2022-12-14 10:05:47,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:47,891 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1353 transitions. [2022-12-14 10:05:47,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:47,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1353 transitions. [2022-12-14 10:05:47,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-12-14 10:05:47,892 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:47,892 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] [2022-12-14 10:05:47,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 10:05:47,893 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:05:47,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:47,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1889558665, now seen corresponding path program 1 times [2022-12-14 10:05:47,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:47,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466351720] [2022-12-14 10:05:47,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:47,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:48,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:05:48,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:48,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466351720] [2022-12-14 10:05:48,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466351720] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:48,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:48,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 10:05:48,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004401508] [2022-12-14 10:05:48,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:48,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 10:05:48,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:48,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 10:05:48,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:05:48,173 INFO L87 Difference]: Start difference. First operand 1005 states and 1353 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:49,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:49,273 INFO L93 Difference]: Finished difference Result 1834 states and 2376 transitions. [2022-12-14 10:05:49,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 10:05:49,274 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2022-12-14 10:05:49,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:49,278 INFO L225 Difference]: With dead ends: 1834 [2022-12-14 10:05:49,278 INFO L226 Difference]: Without dead ends: 1287 [2022-12-14 10:05:49,279 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 [2022-12-14 10:05:49,279 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 5863 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5863 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 1750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:49,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5863 Valid, 1506 Invalid, 1750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:05:49,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2022-12-14 10:05:49,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1005. [2022-12-14 10:05:49,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3852459016393444) internal successors, (1352), 1004 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:49,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1352 transitions. [2022-12-14 10:05:49,347 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1352 transitions. Word has length 107 [2022-12-14 10:05:49,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:49,347 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1352 transitions. [2022-12-14 10:05:49,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:49,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1352 transitions. [2022-12-14 10:05:49,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-12-14 10:05:49,348 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:49,348 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, 1] [2022-12-14 10:05:49,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 10:05:49,349 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:05:49,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:49,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1673844547, now seen corresponding path program 1 times [2022-12-14 10:05:49,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:49,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000140815] [2022-12-14 10:05:49,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:49,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:49,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:05:49,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:49,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000140815] [2022-12-14 10:05:49,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000140815] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:49,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:49,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:05:49,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453884404] [2022-12-14 10:05:49,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:49,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:05:49,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:49,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:05:49,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:05:49,592 INFO L87 Difference]: Start difference. First operand 1005 states and 1352 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:50,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:50,996 INFO L93 Difference]: Finished difference Result 1766 states and 2363 transitions. [2022-12-14 10:05:50,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:05:50,997 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2022-12-14 10:05:50,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:51,000 INFO L225 Difference]: With dead ends: 1766 [2022-12-14 10:05:51,000 INFO L226 Difference]: Without dead ends: 1659 [2022-12-14 10:05:51,000 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 [2022-12-14 10:05:51,001 INFO L413 NwaCegarLoop]: 788 mSDtfsCounter, 5893 mSDsluCounter, 2565 mSDsCounter, 0 mSdLazyCounter, 2976 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5893 SdHoareTripleChecker+Valid, 3353 SdHoareTripleChecker+Invalid, 2980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:51,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5893 Valid, 3353 Invalid, 2980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2976 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 10:05:51,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2022-12-14 10:05:51,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1005. [2022-12-14 10:05:51,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3842213114754098) internal successors, (1351), 1004 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:51,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1351 transitions. [2022-12-14 10:05:51,078 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1351 transitions. Word has length 107 [2022-12-14 10:05:51,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:51,078 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1351 transitions. [2022-12-14 10:05:51,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:51,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1351 transitions. [2022-12-14 10:05:51,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-12-14 10:05:51,080 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:51,080 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] [2022-12-14 10:05:51,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 10:05:51,080 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:05:51,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:51,080 INFO L85 PathProgramCache]: Analyzing trace with hash 124559761, now seen corresponding path program 1 times [2022-12-14 10:05:51,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:51,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566113628] [2022-12-14 10:05:51,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:51,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:51,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:05:51,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:51,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566113628] [2022-12-14 10:05:51,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566113628] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:51,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:51,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:05:51,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968036803] [2022-12-14 10:05:51,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:51,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:05:51,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:51,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:05:51,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:05:51,339 INFO L87 Difference]: Start difference. First operand 1005 states and 1351 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:53,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:53,386 INFO L93 Difference]: Finished difference Result 1926 states and 2588 transitions. [2022-12-14 10:05:53,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:05:53,387 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2022-12-14 10:05:53,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:53,390 INFO L225 Difference]: With dead ends: 1926 [2022-12-14 10:05:53,390 INFO L226 Difference]: Without dead ends: 1671 [2022-12-14 10:05:53,391 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 [2022-12-14 10:05:53,391 INFO L413 NwaCegarLoop]: 1406 mSDtfsCounter, 3522 mSDsluCounter, 4267 mSDsCounter, 0 mSdLazyCounter, 4202 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3522 SdHoareTripleChecker+Valid, 5673 SdHoareTripleChecker+Invalid, 4206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:53,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3522 Valid, 5673 Invalid, 4206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4202 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 10:05:53,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2022-12-14 10:05:53,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1005. [2022-12-14 10:05:53,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3831967213114753) internal successors, (1350), 1004 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:53,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1350 transitions. [2022-12-14 10:05:53,481 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1350 transitions. Word has length 107 [2022-12-14 10:05:53,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:53,482 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1350 transitions. [2022-12-14 10:05:53,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:53,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1350 transitions. [2022-12-14 10:05:53,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-12-14 10:05:53,483 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:53,483 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] [2022-12-14 10:05:53,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 10:05:53,483 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:05:53,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:53,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1528536076, now seen corresponding path program 1 times [2022-12-14 10:05:53,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:53,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639543614] [2022-12-14 10:05:53,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:53,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:53,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:05:53,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:53,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639543614] [2022-12-14 10:05:53,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639543614] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:53,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:53,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:05:53,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318990214] [2022-12-14 10:05:53,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:53,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:05:53,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:53,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:05:53,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:05:53,692 INFO L87 Difference]: Start difference. First operand 1005 states and 1350 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) [2022-12-14 10:05:55,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:55,222 INFO L93 Difference]: Finished difference Result 1680 states and 2223 transitions. [2022-12-14 10:05:55,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:05:55,223 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 [2022-12-14 10:05:55,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:55,226 INFO L225 Difference]: With dead ends: 1680 [2022-12-14 10:05:55,226 INFO L226 Difference]: Without dead ends: 1611 [2022-12-14 10:05:55,226 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 [2022-12-14 10:05:55,226 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 5700 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 2909 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5700 SdHoareTripleChecker+Valid, 3188 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:55,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5700 Valid, 3188 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2909 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 10:05:55,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-12-14 10:05:55,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1005. [2022-12-14 10:05:55,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.382172131147541) internal successors, (1349), 1004 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:55,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1349 transitions. [2022-12-14 10:05:55,315 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1349 transitions. Word has length 109 [2022-12-14 10:05:55,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:55,315 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1349 transitions. [2022-12-14 10:05:55,315 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) [2022-12-14 10:05:55,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1349 transitions. [2022-12-14 10:05:55,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-12-14 10:05:55,316 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:55,317 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] [2022-12-14 10:05:55,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 10:05:55,317 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:05:55,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:55,317 INFO L85 PathProgramCache]: Analyzing trace with hash -473795284, now seen corresponding path program 1 times [2022-12-14 10:05:55,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:55,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57215476] [2022-12-14 10:05:55,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:55,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:55,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:05:55,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:55,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57215476] [2022-12-14 10:05:55,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57215476] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:55,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:55,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:05:55,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368410322] [2022-12-14 10:05:55,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:55,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:05:55,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:55,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:05:55,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:05:55,521 INFO L87 Difference]: Start difference. First operand 1005 states and 1349 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) [2022-12-14 10:05:57,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:57,192 INFO L93 Difference]: Finished difference Result 1780 states and 2373 transitions. [2022-12-14 10:05:57,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:05:57,193 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 [2022-12-14 10:05:57,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:57,196 INFO L225 Difference]: With dead ends: 1780 [2022-12-14 10:05:57,196 INFO L226 Difference]: Without dead ends: 1659 [2022-12-14 10:05:57,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:05:57,197 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 6118 mSDsluCounter, 2476 mSDsCounter, 0 mSdLazyCounter, 2787 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6118 SdHoareTripleChecker+Valid, 3233 SdHoareTripleChecker+Invalid, 2793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:57,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6118 Valid, 3233 Invalid, 2793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2787 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 10:05:57,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2022-12-14 10:05:57,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1005. [2022-12-14 10:05:57,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3811475409836065) internal successors, (1348), 1004 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:57,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1348 transitions. [2022-12-14 10:05:57,295 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1348 transitions. Word has length 109 [2022-12-14 10:05:57,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:57,296 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1348 transitions. [2022-12-14 10:05:57,296 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) [2022-12-14 10:05:57,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1348 transitions. [2022-12-14 10:05:57,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-12-14 10:05:57,297 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:57,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:05:57,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 10:05:57,297 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:05:57,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:57,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1405713654, now seen corresponding path program 1 times [2022-12-14 10:05:57,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:57,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908126646] [2022-12-14 10:05:57,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:57,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:57,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:05:57,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:57,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908126646] [2022-12-14 10:05:57,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908126646] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:57,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:57,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:05:57,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750728551] [2022-12-14 10:05:57,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:57,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:05:57,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:57,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:05:57,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:05:57,520 INFO L87 Difference]: Start difference. First operand 1005 states and 1348 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) [2022-12-14 10:05:59,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:59,109 INFO L93 Difference]: Finished difference Result 1818 states and 2429 transitions. [2022-12-14 10:05:59,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:05:59,110 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 [2022-12-14 10:05:59,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:59,113 INFO L225 Difference]: With dead ends: 1818 [2022-12-14 10:05:59,113 INFO L226 Difference]: Without dead ends: 1647 [2022-12-14 10:05:59,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:05:59,114 INFO L413 NwaCegarLoop]: 961 mSDtfsCounter, 5278 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 3341 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5278 SdHoareTripleChecker+Valid, 3789 SdHoareTripleChecker+Invalid, 3346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:59,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5278 Valid, 3789 Invalid, 3346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3341 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 10:05:59,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-12-14 10:05:59,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1005. [2022-12-14 10:05:59,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3801229508196722) internal successors, (1347), 1004 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:05:59,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1347 transitions. [2022-12-14 10:05:59,217 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1347 transitions. Word has length 109 [2022-12-14 10:05:59,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:59,217 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1347 transitions. [2022-12-14 10:05:59,217 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) [2022-12-14 10:05:59,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1347 transitions. [2022-12-14 10:05:59,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-12-14 10:05:59,218 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:59,218 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] [2022-12-14 10:05:59,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 10:05:59,219 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:05:59,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:59,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1668784820, now seen corresponding path program 1 times [2022-12-14 10:05:59,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:59,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092601163] [2022-12-14 10:05:59,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:59,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:59,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:05:59,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:59,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092601163] [2022-12-14 10:05:59,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092601163] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:59,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:59,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:05:59,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748203634] [2022-12-14 10:05:59,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:59,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:05:59,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:59,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:05:59,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:05:59,462 INFO L87 Difference]: Start difference. First operand 1005 states and 1347 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) [2022-12-14 10:06:01,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:01,303 INFO L93 Difference]: Finished difference Result 1755 states and 2343 transitions. [2022-12-14 10:06:01,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:06:01,303 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 [2022-12-14 10:06:01,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:01,308 INFO L225 Difference]: With dead ends: 1755 [2022-12-14 10:06:01,308 INFO L226 Difference]: Without dead ends: 1659 [2022-12-14 10:06:01,308 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 [2022-12-14 10:06:01,308 INFO L413 NwaCegarLoop]: 934 mSDtfsCounter, 4374 mSDsluCounter, 3694 mSDsCounter, 0 mSdLazyCounter, 3852 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4374 SdHoareTripleChecker+Valid, 4628 SdHoareTripleChecker+Invalid, 3856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:01,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4374 Valid, 4628 Invalid, 3856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3852 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 10:06:01,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2022-12-14 10:06:01,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1005. [2022-12-14 10:06:01,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3790983606557377) internal successors, (1346), 1004 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:01,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1346 transitions. [2022-12-14 10:06:01,426 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1346 transitions. Word has length 109 [2022-12-14 10:06:01,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:01,426 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1346 transitions. [2022-12-14 10:06:01,426 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) [2022-12-14 10:06:01,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1346 transitions. [2022-12-14 10:06:01,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-12-14 10:06:01,427 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:01,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:06:01,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 10:06:01,427 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:06:01,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:01,428 INFO L85 PathProgramCache]: Analyzing trace with hash 148522489, now seen corresponding path program 1 times [2022-12-14 10:06:01,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:01,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912967585] [2022-12-14 10:06:01,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:01,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:01,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:01,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:01,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912967585] [2022-12-14 10:06:01,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912967585] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:01,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:01,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:01,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31630624] [2022-12-14 10:06:01,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:01,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:01,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:01,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:01,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:01,624 INFO L87 Difference]: Start difference. First operand 1005 states and 1346 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) [2022-12-14 10:06:03,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:03,385 INFO L93 Difference]: Finished difference Result 1798 states and 2406 transitions. [2022-12-14 10:06:03,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:06:03,386 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 [2022-12-14 10:06:03,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:03,389 INFO L225 Difference]: With dead ends: 1798 [2022-12-14 10:06:03,389 INFO L226 Difference]: Without dead ends: 1647 [2022-12-14 10:06:03,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:06:03,390 INFO L413 NwaCegarLoop]: 926 mSDtfsCounter, 5238 mSDsluCounter, 2966 mSDsCounter, 0 mSdLazyCounter, 3402 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5238 SdHoareTripleChecker+Valid, 3892 SdHoareTripleChecker+Invalid, 3406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:03,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5238 Valid, 3892 Invalid, 3406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3402 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 10:06:03,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-12-14 10:06:03,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1005. [2022-12-14 10:06:03,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3780737704918034) internal successors, (1345), 1004 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:03,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1345 transitions. [2022-12-14 10:06:03,512 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1345 transitions. Word has length 109 [2022-12-14 10:06:03,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:03,512 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1345 transitions. [2022-12-14 10:06:03,512 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) [2022-12-14 10:06:03,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1345 transitions. [2022-12-14 10:06:03,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-12-14 10:06:03,513 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:03,513 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] [2022-12-14 10:06:03,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 10:06:03,513 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:06:03,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:03,513 INFO L85 PathProgramCache]: Analyzing trace with hash -2020099149, now seen corresponding path program 1 times [2022-12-14 10:06:03,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:03,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878595706] [2022-12-14 10:06:03,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:03,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:03,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:03,725 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:03,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878595706] [2022-12-14 10:06:03,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878595706] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:03,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:03,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:03,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136344557] [2022-12-14 10:06:03,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:03,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:03,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:03,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:03,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:03,727 INFO L87 Difference]: Start difference. First operand 1005 states and 1345 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) [2022-12-14 10:06:05,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:05,530 INFO L93 Difference]: Finished difference Result 1823 states and 2429 transitions. [2022-12-14 10:06:05,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:06:05,531 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 [2022-12-14 10:06:05,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:05,533 INFO L225 Difference]: With dead ends: 1823 [2022-12-14 10:06:05,533 INFO L226 Difference]: Without dead ends: 1647 [2022-12-14 10:06:05,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:06:05,534 INFO L413 NwaCegarLoop]: 947 mSDtfsCounter, 5258 mSDsluCounter, 2962 mSDsCounter, 0 mSdLazyCounter, 3402 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5258 SdHoareTripleChecker+Valid, 3909 SdHoareTripleChecker+Invalid, 3406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:05,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5258 Valid, 3909 Invalid, 3406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3402 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 10:06:05,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-12-14 10:06:05,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1005. [2022-12-14 10:06:05,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3770491803278688) internal successors, (1344), 1004 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:05,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1344 transitions. [2022-12-14 10:06:05,656 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1344 transitions. Word has length 109 [2022-12-14 10:06:05,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:05,656 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1344 transitions. [2022-12-14 10:06:05,656 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) [2022-12-14 10:06:05,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1344 transitions. [2022-12-14 10:06:05,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-12-14 10:06:05,657 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:05,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:06:05,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 10:06:05,658 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)] === [2022-12-14 10:06:05,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:05,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1897276727, now seen corresponding path program 1 times [2022-12-14 10:06:05,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:05,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852135789] [2022-12-14 10:06:05,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:05,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:05,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:05,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:05,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852135789] [2022-12-14 10:06:05,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852135789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:05,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:05,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:05,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116842064] [2022-12-14 10:06:05,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:05,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:05,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:05,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:05,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:05,832 INFO L87 Difference]: Start difference. First operand 1005 states and 1344 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) [2022-12-14 10:06:07,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:07,896 INFO L93 Difference]: Finished difference Result 1680 states and 2215 transitions. [2022-12-14 10:06:07,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:06:07,896 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 [2022-12-14 10:06:07,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:07,902 INFO L225 Difference]: With dead ends: 1680 [2022-12-14 10:06:07,903 INFO L226 Difference]: Without dead ends: 1611 [2022-12-14 10:06:07,903 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 [2022-12-14 10:06:07,903 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 3744 mSDsluCounter, 2438 mSDsCounter, 0 mSdLazyCounter, 2891 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3744 SdHoareTripleChecker+Valid, 3190 SdHoareTripleChecker+Invalid, 2895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:07,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3744 Valid, 3190 Invalid, 2895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2891 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 10:06:07,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-12-14 10:06:08,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1005. [2022-12-14 10:06:08,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3760245901639345) internal successors, (1343), 1004 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:08,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1343 transitions. [2022-12-14 10:06:08,031 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1343 transitions. Word has length 109 [2022-12-14 10:06:08,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:08,031 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1343 transitions. [2022-12-14 10:06:08,031 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) [2022-12-14 10:06:08,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1343 transitions. [2022-12-14 10:06:08,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-12-14 10:06:08,032 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:08,032 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] [2022-12-14 10:06:08,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 10:06:08,032 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:06:08,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:08,033 INFO L85 PathProgramCache]: Analyzing trace with hash -211267848, now seen corresponding path program 1 times [2022-12-14 10:06:08,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:08,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883041555] [2022-12-14 10:06:08,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:08,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:08,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:08,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:08,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883041555] [2022-12-14 10:06:08,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883041555] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:08,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:08,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:08,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742546470] [2022-12-14 10:06:08,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:08,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:08,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:08,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:08,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:08,228 INFO L87 Difference]: Start difference. First operand 1005 states and 1343 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) [2022-12-14 10:06:09,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:09,955 INFO L93 Difference]: Finished difference Result 1995 states and 2655 transitions. [2022-12-14 10:06:09,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:06:09,955 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 [2022-12-14 10:06:09,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:09,958 INFO L225 Difference]: With dead ends: 1995 [2022-12-14 10:06:09,958 INFO L226 Difference]: Without dead ends: 1671 [2022-12-14 10:06:09,959 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 [2022-12-14 10:06:09,959 INFO L413 NwaCegarLoop]: 1208 mSDtfsCounter, 4742 mSDsluCounter, 3082 mSDsCounter, 0 mSdLazyCounter, 3667 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4742 SdHoareTripleChecker+Valid, 4290 SdHoareTripleChecker+Invalid, 3672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:09,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4742 Valid, 4290 Invalid, 3672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3667 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 10:06:09,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2022-12-14 10:06:10,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1005. [2022-12-14 10:06:10,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.375) internal successors, (1342), 1004 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:10,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1342 transitions. [2022-12-14 10:06:10,097 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1342 transitions. Word has length 109 [2022-12-14 10:06:10,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:10,097 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1342 transitions. [2022-12-14 10:06:10,097 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) [2022-12-14 10:06:10,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1342 transitions. [2022-12-14 10:06:10,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 10:06:10,098 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:10,098 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] [2022-12-14 10:06:10,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 10:06:10,098 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:06:10,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:10,099 INFO L85 PathProgramCache]: Analyzing trace with hash -177768362, now seen corresponding path program 1 times [2022-12-14 10:06:10,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:10,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062404856] [2022-12-14 10:06:10,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:10,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:10,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:10,258 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:10,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062404856] [2022-12-14 10:06:10,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062404856] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:10,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:10,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:10,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008987282] [2022-12-14 10:06:10,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:10,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:10,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:10,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:10,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:10,259 INFO L87 Difference]: Start difference. First operand 1005 states and 1342 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) [2022-12-14 10:06:11,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:11,663 INFO L93 Difference]: Finished difference Result 1680 states and 2213 transitions. [2022-12-14 10:06:11,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:06:11,664 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 [2022-12-14 10:06:11,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:11,667 INFO L225 Difference]: With dead ends: 1680 [2022-12-14 10:06:11,667 INFO L226 Difference]: Without dead ends: 1611 [2022-12-14 10:06:11,668 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 [2022-12-14 10:06:11,668 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 5664 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 2881 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5664 SdHoareTripleChecker+Valid, 3188 SdHoareTripleChecker+Invalid, 2885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:11,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5664 Valid, 3188 Invalid, 2885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2881 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 10:06:11,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-12-14 10:06:11,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1005. [2022-12-14 10:06:11,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3739754098360655) internal successors, (1341), 1004 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:11,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1341 transitions. [2022-12-14 10:06:11,810 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1341 transitions. Word has length 111 [2022-12-14 10:06:11,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:11,811 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1341 transitions. [2022-12-14 10:06:11,811 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) [2022-12-14 10:06:11,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1341 transitions. [2022-12-14 10:06:11,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 10:06:11,812 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:11,812 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] [2022-12-14 10:06:11,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 10:06:11,813 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:06:11,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:11,813 INFO L85 PathProgramCache]: Analyzing trace with hash -975546434, now seen corresponding path program 1 times [2022-12-14 10:06:11,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:11,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342526132] [2022-12-14 10:06:11,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:11,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:12,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:12,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342526132] [2022-12-14 10:06:12,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342526132] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:12,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:12,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:12,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362677820] [2022-12-14 10:06:12,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:12,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:12,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:12,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:12,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:12,031 INFO L87 Difference]: Start difference. First operand 1005 states and 1341 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) [2022-12-14 10:06:13,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:13,984 INFO L93 Difference]: Finished difference Result 1761 states and 2341 transitions. [2022-12-14 10:06:13,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:06:13,984 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 [2022-12-14 10:06:13,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:13,986 INFO L225 Difference]: With dead ends: 1761 [2022-12-14 10:06:13,986 INFO L226 Difference]: Without dead ends: 1659 [2022-12-14 10:06:13,987 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 [2022-12-14 10:06:13,988 INFO L413 NwaCegarLoop]: 1190 mSDtfsCounter, 4453 mSDsluCounter, 4088 mSDsCounter, 0 mSdLazyCounter, 4093 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4453 SdHoareTripleChecker+Valid, 5278 SdHoareTripleChecker+Invalid, 4097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:13,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4453 Valid, 5278 Invalid, 4097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4093 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 10:06:13,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2022-12-14 10:06:14,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1005. [2022-12-14 10:06:14,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3729508196721312) internal successors, (1340), 1004 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:14,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1340 transitions. [2022-12-14 10:06:14,134 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1340 transitions. Word has length 111 [2022-12-14 10:06:14,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:14,135 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1340 transitions. [2022-12-14 10:06:14,135 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) [2022-12-14 10:06:14,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1340 transitions. [2022-12-14 10:06:14,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 10:06:14,136 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:14,136 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] [2022-12-14 10:06:14,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 10:06:14,136 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:06:14,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:14,136 INFO L85 PathProgramCache]: Analyzing trace with hash -295038365, now seen corresponding path program 1 times [2022-12-14 10:06:14,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:14,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105339741] [2022-12-14 10:06:14,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:14,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:14,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:14,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:14,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105339741] [2022-12-14 10:06:14,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105339741] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:14,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:14,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:14,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885075159] [2022-12-14 10:06:14,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:14,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:14,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:14,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:14,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:14,307 INFO L87 Difference]: Start difference. First operand 1005 states and 1340 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) [2022-12-14 10:06:15,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:15,781 INFO L93 Difference]: Finished difference Result 1676 states and 2206 transitions. [2022-12-14 10:06:15,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:06:15,781 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 [2022-12-14 10:06:15,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:15,783 INFO L225 Difference]: With dead ends: 1676 [2022-12-14 10:06:15,783 INFO L226 Difference]: Without dead ends: 1611 [2022-12-14 10:06:15,783 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 [2022-12-14 10:06:15,784 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 3708 mSDsluCounter, 2445 mSDsCounter, 0 mSdLazyCounter, 2877 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3708 SdHoareTripleChecker+Valid, 3197 SdHoareTripleChecker+Invalid, 2881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:15,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3708 Valid, 3197 Invalid, 2881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2877 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 10:06:15,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-12-14 10:06:15,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1005. [2022-12-14 10:06:15,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3719262295081966) internal successors, (1339), 1004 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:15,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1339 transitions. [2022-12-14 10:06:15,939 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1339 transitions. Word has length 111 [2022-12-14 10:06:15,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:15,939 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1339 transitions. [2022-12-14 10:06:15,939 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) [2022-12-14 10:06:15,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1339 transitions. [2022-12-14 10:06:15,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 10:06:15,940 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:15,940 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:06:15,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 10:06:15,940 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:06:15,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:15,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1626759222, now seen corresponding path program 1 times [2022-12-14 10:06:15,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:15,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880803010] [2022-12-14 10:06:15,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:15,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:16,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:16,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:16,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880803010] [2022-12-14 10:06:16,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880803010] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:16,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:16,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:16,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525888930] [2022-12-14 10:06:16,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:16,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:16,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:16,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:16,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:16,127 INFO L87 Difference]: Start difference. First operand 1005 states and 1339 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) [2022-12-14 10:06:17,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:17,511 INFO L93 Difference]: Finished difference Result 1680 states and 2207 transitions. [2022-12-14 10:06:17,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:06:17,511 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 [2022-12-14 10:06:17,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:17,514 INFO L225 Difference]: With dead ends: 1680 [2022-12-14 10:06:17,514 INFO L226 Difference]: Without dead ends: 1611 [2022-12-14 10:06:17,515 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 [2022-12-14 10:06:17,515 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 5647 mSDsluCounter, 2438 mSDsCounter, 0 mSdLazyCounter, 2870 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5647 SdHoareTripleChecker+Valid, 3190 SdHoareTripleChecker+Invalid, 2874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:17,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5647 Valid, 3190 Invalid, 2874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2870 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:06:17,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-12-14 10:06:17,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1005. [2022-12-14 10:06:17,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3709016393442623) internal successors, (1338), 1004 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:17,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1338 transitions. [2022-12-14 10:06:17,669 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1338 transitions. Word has length 111 [2022-12-14 10:06:17,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:17,669 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1338 transitions. [2022-12-14 10:06:17,669 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) [2022-12-14 10:06:17,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1338 transitions. [2022-12-14 10:06:17,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 10:06:17,670 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:17,670 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] [2022-12-14 10:06:17,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 10:06:17,670 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)] === [2022-12-14 10:06:17,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:17,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1108394253, now seen corresponding path program 1 times [2022-12-14 10:06:17,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:17,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224077956] [2022-12-14 10:06:17,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:17,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:17,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:17,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:17,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224077956] [2022-12-14 10:06:17,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224077956] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:17,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:17,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:17,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526642863] [2022-12-14 10:06:17,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:17,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:17,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:17,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:17,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:17,882 INFO L87 Difference]: Start difference. First operand 1005 states and 1338 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) [2022-12-14 10:06:19,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:19,521 INFO L93 Difference]: Finished difference Result 1720 states and 2278 transitions. [2022-12-14 10:06:19,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:06:19,521 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 [2022-12-14 10:06:19,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:19,523 INFO L225 Difference]: With dead ends: 1720 [2022-12-14 10:06:19,523 INFO L226 Difference]: Without dead ends: 1643 [2022-12-14 10:06:19,523 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 [2022-12-14 10:06:19,524 INFO L413 NwaCegarLoop]: 1157 mSDtfsCounter, 4277 mSDsluCounter, 4027 mSDsCounter, 0 mSdLazyCounter, 4162 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4277 SdHoareTripleChecker+Valid, 5184 SdHoareTripleChecker+Invalid, 4165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:19,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4277 Valid, 5184 Invalid, 4165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4162 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 10:06:19,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-12-14 10:06:19,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1005. [2022-12-14 10:06:19,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3698770491803278) internal successors, (1337), 1004 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:19,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1337 transitions. [2022-12-14 10:06:19,682 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1337 transitions. Word has length 111 [2022-12-14 10:06:19,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:19,682 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1337 transitions. [2022-12-14 10:06:19,683 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) [2022-12-14 10:06:19,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1337 transitions. [2022-12-14 10:06:19,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 10:06:19,683 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:19,683 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] [2022-12-14 10:06:19,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 10:06:19,684 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:06:19,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:19,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1161342119, now seen corresponding path program 1 times [2022-12-14 10:06:19,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:19,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704147684] [2022-12-14 10:06:19,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:19,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:19,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:19,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:19,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704147684] [2022-12-14 10:06:19,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704147684] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:19,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:19,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:19,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871643691] [2022-12-14 10:06:19,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:19,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:19,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:19,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:19,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:19,859 INFO L87 Difference]: Start difference. First operand 1005 states and 1337 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) [2022-12-14 10:06:21,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:21,464 INFO L93 Difference]: Finished difference Result 1676 states and 2201 transitions. [2022-12-14 10:06:21,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:06:21,464 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 [2022-12-14 10:06:21,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:21,466 INFO L225 Difference]: With dead ends: 1676 [2022-12-14 10:06:21,466 INFO L226 Difference]: Without dead ends: 1611 [2022-12-14 10:06:21,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:06:21,467 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 5573 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 2916 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5573 SdHoareTripleChecker+Valid, 3252 SdHoareTripleChecker+Invalid, 2920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:21,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5573 Valid, 3252 Invalid, 2920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2916 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 10:06:21,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-12-14 10:06:21,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1005. [2022-12-14 10:06:21,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3688524590163935) internal successors, (1336), 1004 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:21,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1336 transitions. [2022-12-14 10:06:21,633 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1336 transitions. Word has length 111 [2022-12-14 10:06:21,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:21,634 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1336 transitions. [2022-12-14 10:06:21,634 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) [2022-12-14 10:06:21,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1336 transitions. [2022-12-14 10:06:21,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 10:06:21,634 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:21,635 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] [2022-12-14 10:06:21,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 10:06:21,635 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:06:21,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:21,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1589926345, now seen corresponding path program 1 times [2022-12-14 10:06:21,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:21,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126883697] [2022-12-14 10:06:21,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:21,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:21,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:21,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:21,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126883697] [2022-12-14 10:06:21,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126883697] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:21,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:21,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:21,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268994504] [2022-12-14 10:06:21,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:21,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:21,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:21,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:21,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:21,799 INFO L87 Difference]: Start difference. First operand 1005 states and 1336 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) [2022-12-14 10:06:23,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:23,530 INFO L93 Difference]: Finished difference Result 1675 states and 2198 transitions. [2022-12-14 10:06:23,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:06:23,531 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 [2022-12-14 10:06:23,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:23,533 INFO L225 Difference]: With dead ends: 1675 [2022-12-14 10:06:23,534 INFO L226 Difference]: Without dead ends: 1611 [2022-12-14 10:06:23,534 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 [2022-12-14 10:06:23,534 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 5571 mSDsluCounter, 2481 mSDsCounter, 0 mSdLazyCounter, 2914 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5571 SdHoareTripleChecker+Valid, 3248 SdHoareTripleChecker+Invalid, 2918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:23,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5571 Valid, 3248 Invalid, 2918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2914 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 10:06:23,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-12-14 10:06:23,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1005. [2022-12-14 10:06:23,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.367827868852459) internal successors, (1335), 1004 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:23,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1335 transitions. [2022-12-14 10:06:23,705 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1335 transitions. Word has length 111 [2022-12-14 10:06:23,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:23,705 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1335 transitions. [2022-12-14 10:06:23,705 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) [2022-12-14 10:06:23,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1335 transitions. [2022-12-14 10:06:23,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 10:06:23,706 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:23,706 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] [2022-12-14 10:06:23,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 10:06:23,706 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:06:23,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:23,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1856015251, now seen corresponding path program 1 times [2022-12-14 10:06:23,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:23,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011649885] [2022-12-14 10:06:23,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:23,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:23,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:23,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:23,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011649885] [2022-12-14 10:06:23,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011649885] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:23,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:23,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:23,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034282585] [2022-12-14 10:06:23,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:23,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:23,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:23,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:23,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:23,910 INFO L87 Difference]: Start difference. First operand 1005 states and 1335 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) [2022-12-14 10:06:26,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:26,408 INFO L93 Difference]: Finished difference Result 1725 states and 2278 transitions. [2022-12-14 10:06:26,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:06:26,408 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 [2022-12-14 10:06:26,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:26,410 INFO L225 Difference]: With dead ends: 1725 [2022-12-14 10:06:26,410 INFO L226 Difference]: Without dead ends: 1643 [2022-12-14 10:06:26,411 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 [2022-12-14 10:06:26,411 INFO L413 NwaCegarLoop]: 1122 mSDtfsCounter, 4281 mSDsluCounter, 3968 mSDsCounter, 0 mSdLazyCounter, 4067 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4281 SdHoareTripleChecker+Valid, 5090 SdHoareTripleChecker+Invalid, 4071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:26,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4281 Valid, 5090 Invalid, 4071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4067 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 10:06:26,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-12-14 10:06:26,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1005. [2022-12-14 10:06:26,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3668032786885247) internal successors, (1334), 1004 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:26,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1334 transitions. [2022-12-14 10:06:26,586 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1334 transitions. Word has length 111 [2022-12-14 10:06:26,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:26,586 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1334 transitions. [2022-12-14 10:06:26,587 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) [2022-12-14 10:06:26,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1334 transitions. [2022-12-14 10:06:26,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 10:06:26,588 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:26,588 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] [2022-12-14 10:06:26,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 10:06:26,588 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)] === [2022-12-14 10:06:26,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:26,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1059128893, now seen corresponding path program 1 times [2022-12-14 10:06:26,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:26,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205599914] [2022-12-14 10:06:26,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:26,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:26,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:26,794 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:26,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205599914] [2022-12-14 10:06:26,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205599914] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:26,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:26,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:26,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936209236] [2022-12-14 10:06:26,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:26,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:26,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:26,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:26,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:26,796 INFO L87 Difference]: Start difference. First operand 1005 states and 1334 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) [2022-12-14 10:06:29,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:29,347 INFO L93 Difference]: Finished difference Result 1766 states and 2338 transitions. [2022-12-14 10:06:29,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:06:29,347 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 [2022-12-14 10:06:29,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:29,349 INFO L225 Difference]: With dead ends: 1766 [2022-12-14 10:06:29,349 INFO L226 Difference]: Without dead ends: 1659 [2022-12-14 10:06:29,350 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 [2022-12-14 10:06:29,350 INFO L413 NwaCegarLoop]: 1187 mSDtfsCounter, 4456 mSDsluCounter, 4059 mSDsCounter, 0 mSdLazyCounter, 4022 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4456 SdHoareTripleChecker+Valid, 5246 SdHoareTripleChecker+Invalid, 4027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 4022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:29,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4456 Valid, 5246 Invalid, 4027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 4022 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 10:06:29,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2022-12-14 10:06:29,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1005. [2022-12-14 10:06:29,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3657786885245902) internal successors, (1333), 1004 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:29,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1333 transitions. [2022-12-14 10:06:29,527 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1333 transitions. Word has length 111 [2022-12-14 10:06:29,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:29,527 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1333 transitions. [2022-12-14 10:06:29,527 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) [2022-12-14 10:06:29,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1333 transitions. [2022-12-14 10:06:29,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 10:06:29,528 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:29,528 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] [2022-12-14 10:06:29,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 10:06:29,528 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)] === [2022-12-14 10:06:29,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:29,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1739636962, now seen corresponding path program 1 times [2022-12-14 10:06:29,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:29,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152506913] [2022-12-14 10:06:29,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:29,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:29,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:29,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:29,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:29,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152506913] [2022-12-14 10:06:29,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152506913] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:29,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:29,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:29,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698870052] [2022-12-14 10:06:29,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:29,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:29,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:29,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:29,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:29,729 INFO L87 Difference]: Start difference. First operand 1005 states and 1333 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) [2022-12-14 10:06:31,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:31,975 INFO L93 Difference]: Finished difference Result 1720 states and 2272 transitions. [2022-12-14 10:06:31,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:06:31,975 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 [2022-12-14 10:06:31,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:31,977 INFO L225 Difference]: With dead ends: 1720 [2022-12-14 10:06:31,977 INFO L226 Difference]: Without dead ends: 1643 [2022-12-14 10:06:31,977 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 [2022-12-14 10:06:31,978 INFO L413 NwaCegarLoop]: 1189 mSDtfsCounter, 4261 mSDsluCounter, 4083 mSDsCounter, 0 mSdLazyCounter, 4166 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4261 SdHoareTripleChecker+Valid, 5272 SdHoareTripleChecker+Invalid, 4170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:31,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4261 Valid, 5272 Invalid, 4170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4166 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 10:06:31,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-12-14 10:06:32,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1005. [2022-12-14 10:06:32,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3647540983606556) internal successors, (1332), 1004 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:32,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1332 transitions. [2022-12-14 10:06:32,161 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1332 transitions. Word has length 111 [2022-12-14 10:06:32,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:32,161 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1332 transitions. [2022-12-14 10:06:32,161 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) [2022-12-14 10:06:32,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1332 transitions. [2022-12-14 10:06:32,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 10:06:32,162 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:32,162 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] [2022-12-14 10:06:32,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 10:06:32,162 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:06:32,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:32,162 INFO L85 PathProgramCache]: Analyzing trace with hash 2129832071, now seen corresponding path program 1 times [2022-12-14 10:06:32,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:32,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365593465] [2022-12-14 10:06:32,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:32,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:32,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:32,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:32,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365593465] [2022-12-14 10:06:32,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365593465] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:32,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:32,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:32,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993362540] [2022-12-14 10:06:32,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:32,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:32,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:32,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:32,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:32,331 INFO L87 Difference]: Start difference. First operand 1005 states and 1332 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) [2022-12-14 10:06:34,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:34,343 INFO L93 Difference]: Finished difference Result 1852 states and 2444 transitions. [2022-12-14 10:06:34,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:06:34,343 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 [2022-12-14 10:06:34,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:34,345 INFO L225 Difference]: With dead ends: 1852 [2022-12-14 10:06:34,345 INFO L226 Difference]: Without dead ends: 1647 [2022-12-14 10:06:34,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:06:34,346 INFO L413 NwaCegarLoop]: 1152 mSDtfsCounter, 4658 mSDsluCounter, 3292 mSDsCounter, 0 mSdLazyCounter, 3725 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4658 SdHoareTripleChecker+Valid, 4444 SdHoareTripleChecker+Invalid, 3730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:34,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4658 Valid, 4444 Invalid, 3730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3725 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 10:06:34,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-12-14 10:06:34,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1005. [2022-12-14 10:06:34,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3637295081967213) internal successors, (1331), 1004 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:34,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1331 transitions. [2022-12-14 10:06:34,531 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1331 transitions. Word has length 111 [2022-12-14 10:06:34,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:34,531 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1331 transitions. [2022-12-14 10:06:34,531 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) [2022-12-14 10:06:34,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1331 transitions. [2022-12-14 10:06:34,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 10:06:34,532 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:34,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:06:34,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 10:06:34,532 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:06:34,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:34,533 INFO L85 PathProgramCache]: Analyzing trace with hash -523083210, now seen corresponding path program 1 times [2022-12-14 10:06:34,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:34,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751642193] [2022-12-14 10:06:34,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:34,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:34,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:34,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:34,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751642193] [2022-12-14 10:06:34,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751642193] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:34,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:34,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:34,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306304026] [2022-12-14 10:06:34,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:34,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:34,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:34,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:34,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:34,702 INFO L87 Difference]: Start difference. First operand 1005 states and 1331 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) [2022-12-14 10:06:36,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:36,513 INFO L93 Difference]: Finished difference Result 1680 states and 2197 transitions. [2022-12-14 10:06:36,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:06:36,514 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 [2022-12-14 10:06:36,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:36,516 INFO L225 Difference]: With dead ends: 1680 [2022-12-14 10:06:36,516 INFO L226 Difference]: Without dead ends: 1611 [2022-12-14 10:06:36,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:06:36,516 INFO L413 NwaCegarLoop]: 799 mSDtfsCounter, 3612 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 3011 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3612 SdHoareTripleChecker+Valid, 3376 SdHoareTripleChecker+Invalid, 3015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:36,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3612 Valid, 3376 Invalid, 3015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3011 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 10:06:36,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-12-14 10:06:36,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1005. [2022-12-14 10:06:36,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3627049180327868) internal successors, (1330), 1004 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:36,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1330 transitions. [2022-12-14 10:06:36,708 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1330 transitions. Word has length 111 [2022-12-14 10:06:36,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:36,708 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1330 transitions. [2022-12-14 10:06:36,708 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) [2022-12-14 10:06:36,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1330 transitions. [2022-12-14 10:06:36,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 10:06:36,709 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:36,709 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] [2022-12-14 10:06:36,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-14 10:06:36,710 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:06:36,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:36,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1483529920, now seen corresponding path program 1 times [2022-12-14 10:06:36,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:36,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578103215] [2022-12-14 10:06:36,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:36,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:36,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:36,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:36,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578103215] [2022-12-14 10:06:36,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578103215] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:36,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:36,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:36,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858989975] [2022-12-14 10:06:36,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:36,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:36,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:36,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:36,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:36,902 INFO L87 Difference]: Start difference. First operand 1005 states and 1330 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) [2022-12-14 10:06:39,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:39,127 INFO L93 Difference]: Finished difference Result 1780 states and 2349 transitions. [2022-12-14 10:06:39,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:06:39,128 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 [2022-12-14 10:06:39,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:39,130 INFO L225 Difference]: With dead ends: 1780 [2022-12-14 10:06:39,130 INFO L226 Difference]: Without dead ends: 1659 [2022-12-14 10:06:39,130 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 [2022-12-14 10:06:39,130 INFO L413 NwaCegarLoop]: 1421 mSDtfsCounter, 4298 mSDsluCounter, 4494 mSDsCounter, 0 mSdLazyCounter, 4419 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4298 SdHoareTripleChecker+Valid, 5915 SdHoareTripleChecker+Invalid, 4423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:39,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4298 Valid, 5915 Invalid, 4423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4419 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 10:06:39,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2022-12-14 10:06:39,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1005. [2022-12-14 10:06:39,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3616803278688525) internal successors, (1329), 1004 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:39,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1329 transitions. [2022-12-14 10:06:39,325 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1329 transitions. Word has length 111 [2022-12-14 10:06:39,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:39,326 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1329 transitions. [2022-12-14 10:06:39,326 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) [2022-12-14 10:06:39,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1329 transitions. [2022-12-14 10:06:39,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-12-14 10:06:39,327 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:39,327 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] [2022-12-14 10:06:39,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-14 10:06:39,327 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:06:39,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:39,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1453055725, now seen corresponding path program 1 times [2022-12-14 10:06:39,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:39,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552078768] [2022-12-14 10:06:39,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:39,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:39,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:39,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:39,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552078768] [2022-12-14 10:06:39,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552078768] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:39,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:39,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:39,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155809722] [2022-12-14 10:06:39,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:39,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:39,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:39,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:39,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:39,508 INFO L87 Difference]: Start difference. First operand 1005 states and 1329 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) [2022-12-14 10:06:41,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:41,475 INFO L93 Difference]: Finished difference Result 1670 states and 2181 transitions. [2022-12-14 10:06:41,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:06:41,476 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 [2022-12-14 10:06:41,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:41,479 INFO L225 Difference]: With dead ends: 1670 [2022-12-14 10:06:41,479 INFO L226 Difference]: Without dead ends: 1611 [2022-12-14 10:06:41,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:06:41,480 INFO L413 NwaCegarLoop]: 790 mSDtfsCounter, 5389 mSDsluCounter, 2580 mSDsCounter, 0 mSdLazyCounter, 2988 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5389 SdHoareTripleChecker+Valid, 3370 SdHoareTripleChecker+Invalid, 2992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:41,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5389 Valid, 3370 Invalid, 2992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2988 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 10:06:41,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2022-12-14 10:06:41,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1005. [2022-12-14 10:06:41,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.360655737704918) internal successors, (1328), 1004 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:41,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1328 transitions. [2022-12-14 10:06:41,713 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1328 transitions. Word has length 112 [2022-12-14 10:06:41,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:41,713 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1328 transitions. [2022-12-14 10:06:41,713 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) [2022-12-14 10:06:41,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1328 transitions. [2022-12-14 10:06:41,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-12-14 10:06:41,714 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:41,714 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] [2022-12-14 10:06:41,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-14 10:06:41,714 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:06:41,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:41,714 INFO L85 PathProgramCache]: Analyzing trace with hash 131134412, now seen corresponding path program 1 times [2022-12-14 10:06:41,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:41,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854839268] [2022-12-14 10:06:41,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:41,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:41,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:41,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:41,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854839268] [2022-12-14 10:06:41,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854839268] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:41,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:41,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:41,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861294140] [2022-12-14 10:06:41,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:41,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:41,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:41,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:41,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:41,929 INFO L87 Difference]: Start difference. First operand 1005 states and 1328 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) [2022-12-14 10:06:44,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:44,339 INFO L93 Difference]: Finished difference Result 1714 states and 2257 transitions. [2022-12-14 10:06:44,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:06:44,340 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 [2022-12-14 10:06:44,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:44,342 INFO L225 Difference]: With dead ends: 1714 [2022-12-14 10:06:44,342 INFO L226 Difference]: Without dead ends: 1643 [2022-12-14 10:06:44,342 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 [2022-12-14 10:06:44,342 INFO L413 NwaCegarLoop]: 1293 mSDtfsCounter, 4259 mSDsluCounter, 4268 mSDsCounter, 0 mSdLazyCounter, 4310 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4259 SdHoareTripleChecker+Valid, 5561 SdHoareTripleChecker+Invalid, 4313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:44,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4259 Valid, 5561 Invalid, 4313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4310 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 10:06:44,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-12-14 10:06:44,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1005. [2022-12-14 10:06:44,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 976 states have (on average 1.3596311475409837) internal successors, (1327), 1004 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:44,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1327 transitions. [2022-12-14 10:06:44,545 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1327 transitions. Word has length 112 [2022-12-14 10:06:44,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:44,546 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1327 transitions. [2022-12-14 10:06:44,546 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) [2022-12-14 10:06:44,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1327 transitions. [2022-12-14 10:06:44,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:06:44,550 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:44,550 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] [2022-12-14 10:06:44,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-14 10:06:44,550 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:06:44,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:44,550 INFO L85 PathProgramCache]: Analyzing trace with hash 498012842, now seen corresponding path program 1 times [2022-12-14 10:06:44,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:44,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236767573] [2022-12-14 10:06:44,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:44,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:44,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:44,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:44,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236767573] [2022-12-14 10:06:44,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236767573] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:44,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:44,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 10:06:44,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644848890] [2022-12-14 10:06:44,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:44,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 10:06:44,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:44,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 10:06:44,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-14 10:06:44,865 INFO L87 Difference]: Start difference. First operand 1005 states and 1327 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-12-14 10:06:48,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:48,739 INFO L93 Difference]: Finished difference Result 2113 states and 2772 transitions. [2022-12-14 10:06:48,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 10:06:48,740 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-12-14 10:06:48,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:48,741 INFO L225 Difference]: With dead ends: 2113 [2022-12-14 10:06:48,741 INFO L226 Difference]: Without dead ends: 2022 [2022-12-14 10:06:48,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-12-14 10:06:48,742 INFO L413 NwaCegarLoop]: 1112 mSDtfsCounter, 8798 mSDsluCounter, 4758 mSDsCounter, 0 mSdLazyCounter, 5169 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8798 SdHoareTripleChecker+Valid, 5870 SdHoareTripleChecker+Invalid, 5492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 5169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:48,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8798 Valid, 5870 Invalid, 5492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 5169 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 10:06:48,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2022-12-14 10:06:48,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 1009. [2022-12-14 10:06:48,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.3581632653061224) internal successors, (1331), 1008 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:48,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1331 transitions. [2022-12-14 10:06:48,981 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1331 transitions. Word has length 113 [2022-12-14 10:06:48,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:48,981 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1331 transitions. [2022-12-14 10:06:48,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-12-14 10:06:48,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1331 transitions. [2022-12-14 10:06:48,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:06:48,982 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:48,982 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] [2022-12-14 10:06:48,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-14 10:06:48,983 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:06:48,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:48,983 INFO L85 PathProgramCache]: Analyzing trace with hash 89167614, now seen corresponding path program 1 times [2022-12-14 10:06:48,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:48,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936992631] [2022-12-14 10:06:48,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:48,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:49,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:49,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:49,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936992631] [2022-12-14 10:06:49,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936992631] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:49,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:49,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:49,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647447944] [2022-12-14 10:06:49,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:49,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:49,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:49,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:49,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:49,183 INFO L87 Difference]: Start difference. First operand 1009 states and 1331 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) [2022-12-14 10:06:51,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:51,331 INFO L93 Difference]: Finished difference Result 1684 states and 2196 transitions. [2022-12-14 10:06:51,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:06:51,331 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 [2022-12-14 10:06:51,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:51,332 INFO L225 Difference]: With dead ends: 1684 [2022-12-14 10:06:51,332 INFO L226 Difference]: Without dead ends: 1615 [2022-12-14 10:06:51,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:06:51,333 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 5347 mSDsluCounter, 2610 mSDsCounter, 0 mSdLazyCounter, 3029 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5347 SdHoareTripleChecker+Valid, 3419 SdHoareTripleChecker+Invalid, 3033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:51,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5347 Valid, 3419 Invalid, 3033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3029 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 10:06:51,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-12-14 10:06:51,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1009. [2022-12-14 10:06:51,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.3571428571428572) internal successors, (1330), 1008 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:51,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1330 transitions. [2022-12-14 10:06:51,580 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1330 transitions. Word has length 113 [2022-12-14 10:06:51,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:51,580 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1330 transitions. [2022-12-14 10:06:51,580 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) [2022-12-14 10:06:51,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1330 transitions. [2022-12-14 10:06:51,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:06:51,581 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:51,581 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] [2022-12-14 10:06:51,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-14 10:06:51,581 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:06:51,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:51,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1092664937, now seen corresponding path program 1 times [2022-12-14 10:06:51,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:51,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791325488] [2022-12-14 10:06:51,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:51,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:51,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:51,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:51,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791325488] [2022-12-14 10:06:51,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791325488] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:51,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:51,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:51,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520547563] [2022-12-14 10:06:51,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:51,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:51,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:51,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:51,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:51,751 INFO L87 Difference]: Start difference. First operand 1009 states and 1330 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) [2022-12-14 10:06:53,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:53,661 INFO L93 Difference]: Finished difference Result 1680 states and 2191 transitions. [2022-12-14 10:06:53,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:06:53,662 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 [2022-12-14 10:06:53,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:53,663 INFO L225 Difference]: With dead ends: 1680 [2022-12-14 10:06:53,664 INFO L226 Difference]: Without dead ends: 1615 [2022-12-14 10:06:53,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:06:53,664 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 5330 mSDsluCounter, 2619 mSDsCounter, 0 mSdLazyCounter, 3029 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5330 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 3033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:53,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5330 Valid, 3428 Invalid, 3033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3029 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 10:06:53,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-12-14 10:06:53,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1009. [2022-12-14 10:06:53,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.3561224489795918) internal successors, (1329), 1008 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:53,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1329 transitions. [2022-12-14 10:06:53,918 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1329 transitions. Word has length 113 [2022-12-14 10:06:53,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:53,918 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1329 transitions. [2022-12-14 10:06:53,918 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) [2022-12-14 10:06:53,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1329 transitions. [2022-12-14 10:06:53,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:06:53,919 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:53,919 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] [2022-12-14 10:06:53,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-14 10:06:53,919 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:06:53,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:53,920 INFO L85 PathProgramCache]: Analyzing trace with hash -56393821, now seen corresponding path program 1 times [2022-12-14 10:06:53,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:53,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920240407] [2022-12-14 10:06:53,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:53,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:54,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:54,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:54,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920240407] [2022-12-14 10:06:54,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920240407] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:54,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:54,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:54,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972725575] [2022-12-14 10:06:54,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:54,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:54,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:54,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:54,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:54,090 INFO L87 Difference]: Start difference. First operand 1009 states and 1329 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) [2022-12-14 10:06:56,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:56,290 INFO L93 Difference]: Finished difference Result 1725 states and 2266 transitions. [2022-12-14 10:06:56,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:06:56,290 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 [2022-12-14 10:06:56,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:56,292 INFO L225 Difference]: With dead ends: 1725 [2022-12-14 10:06:56,292 INFO L226 Difference]: Without dead ends: 1643 [2022-12-14 10:06:56,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:06:56,292 INFO L413 NwaCegarLoop]: 1043 mSDtfsCounter, 4568 mSDsluCounter, 3356 mSDsCounter, 0 mSdLazyCounter, 3781 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4568 SdHoareTripleChecker+Valid, 4399 SdHoareTripleChecker+Invalid, 3784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:56,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4568 Valid, 4399 Invalid, 3784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3781 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 10:06:56,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-12-14 10:06:56,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1009. [2022-12-14 10:06:56,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.3551020408163266) internal successors, (1328), 1008 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:56,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1328 transitions. [2022-12-14 10:06:56,575 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1328 transitions. Word has length 113 [2022-12-14 10:06:56,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:56,575 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1328 transitions. [2022-12-14 10:06:56,575 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) [2022-12-14 10:06:56,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1328 transitions. [2022-12-14 10:06:56,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:06:56,576 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:56,576 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] [2022-12-14 10:06:56,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-14 10:06:56,576 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)] === [2022-12-14 10:06:56,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:56,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1516492166, now seen corresponding path program 1 times [2022-12-14 10:06:56,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:56,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60987431] [2022-12-14 10:06:56,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:56,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:56,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:56,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:56,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60987431] [2022-12-14 10:06:56,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60987431] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:56,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:56,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:56,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669991214] [2022-12-14 10:06:56,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:56,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:56,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:56,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:56,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:56,757 INFO L87 Difference]: Start difference. First operand 1009 states and 1328 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) [2022-12-14 10:06:59,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:59,484 INFO L93 Difference]: Finished difference Result 1725 states and 2265 transitions. [2022-12-14 10:06:59,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:06:59,485 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 [2022-12-14 10:06:59,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:59,486 INFO L225 Difference]: With dead ends: 1725 [2022-12-14 10:06:59,486 INFO L226 Difference]: Without dead ends: 1643 [2022-12-14 10:06:59,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:06:59,487 INFO L413 NwaCegarLoop]: 1042 mSDtfsCounter, 3157 mSDsluCounter, 3271 mSDsCounter, 0 mSdLazyCounter, 3673 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3157 SdHoareTripleChecker+Valid, 4313 SdHoareTripleChecker+Invalid, 3678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:59,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3157 Valid, 4313 Invalid, 3678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3673 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 10:06:59,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-12-14 10:06:59,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1009. [2022-12-14 10:06:59,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.3540816326530611) internal successors, (1327), 1008 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:59,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1327 transitions. [2022-12-14 10:06:59,751 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1327 transitions. Word has length 113 [2022-12-14 10:06:59,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:59,751 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1327 transitions. [2022-12-14 10:06:59,751 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) [2022-12-14 10:06:59,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1327 transitions. [2022-12-14 10:06:59,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:06:59,752 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:59,752 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] [2022-12-14 10:06:59,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-14 10:06:59,752 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:06:59,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:59,752 INFO L85 PathProgramCache]: Analyzing trace with hash -367433408, now seen corresponding path program 1 times [2022-12-14 10:06:59,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:59,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769139857] [2022-12-14 10:06:59,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:59,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:59,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:59,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:59,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769139857] [2022-12-14 10:06:59,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769139857] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:59,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:59,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:06:59,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032888071] [2022-12-14 10:06:59,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:59,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:06:59,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:59,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:06:59,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:06:59,935 INFO L87 Difference]: Start difference. First operand 1009 states and 1327 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) [2022-12-14 10:07:01,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:01,835 INFO L93 Difference]: Finished difference Result 1680 states and 2188 transitions. [2022-12-14 10:07:01,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:07:01,835 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 [2022-12-14 10:07:01,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:01,837 INFO L225 Difference]: With dead ends: 1680 [2022-12-14 10:07:01,837 INFO L226 Difference]: Without dead ends: 1615 [2022-12-14 10:07:01,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:07:01,837 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 5185 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 3129 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5185 SdHoareTripleChecker+Valid, 3580 SdHoareTripleChecker+Invalid, 3133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:01,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5185 Valid, 3580 Invalid, 3133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3129 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 10:07:01,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-12-14 10:07:02,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1009. [2022-12-14 10:07:02,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.353061224489796) internal successors, (1326), 1008 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:07:02,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1326 transitions. [2022-12-14 10:07:02,108 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1326 transitions. Word has length 113 [2022-12-14 10:07:02,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:02,108 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1326 transitions. [2022-12-14 10:07:02,108 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) [2022-12-14 10:07:02,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1326 transitions. [2022-12-14 10:07:02,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:07:02,109 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:02,109 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] [2022-12-14 10:07:02,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-14 10:07:02,109 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:07:02,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:02,109 INFO L85 PathProgramCache]: Analyzing trace with hash 999406562, now seen corresponding path program 1 times [2022-12-14 10:07:02,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:02,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937059658] [2022-12-14 10:07:02,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:02,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:02,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:02,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:02,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937059658] [2022-12-14 10:07:02,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937059658] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:02,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:02,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:07:02,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647299130] [2022-12-14 10:07:02,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:02,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:07:02,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:02,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:07:02,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:07:02,309 INFO L87 Difference]: Start difference. First operand 1009 states and 1326 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) [2022-12-14 10:07:04,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:04,352 INFO L93 Difference]: Finished difference Result 1674 states and 2178 transitions. [2022-12-14 10:07:04,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:07:04,352 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 [2022-12-14 10:07:04,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:04,353 INFO L225 Difference]: With dead ends: 1674 [2022-12-14 10:07:04,353 INFO L226 Difference]: Without dead ends: 1615 [2022-12-14 10:07:04,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:07:04,354 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 5176 mSDsluCounter, 2739 mSDsCounter, 0 mSdLazyCounter, 3128 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5176 SdHoareTripleChecker+Valid, 3586 SdHoareTripleChecker+Invalid, 3132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:04,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5176 Valid, 3586 Invalid, 3132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3128 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 10:07:04,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-12-14 10:07:04,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1009. [2022-12-14 10:07:04,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.3520408163265305) internal successors, (1325), 1008 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:07:04,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1325 transitions. [2022-12-14 10:07:04,640 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1325 transitions. Word has length 113 [2022-12-14 10:07:04,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:04,640 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1325 transitions. [2022-12-14 10:07:04,640 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) [2022-12-14 10:07:04,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1325 transitions. [2022-12-14 10:07:04,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:07:04,641 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:04,641 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] [2022-12-14 10:07:04,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-14 10:07:04,641 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:07:04,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:04,642 INFO L85 PathProgramCache]: Analyzing trace with hash -859344288, now seen corresponding path program 1 times [2022-12-14 10:07:04,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:04,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016365480] [2022-12-14 10:07:04,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:04,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:04,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:04,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:04,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016365480] [2022-12-14 10:07:04,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016365480] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:04,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:04,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:07:04,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52306969] [2022-12-14 10:07:04,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:04,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:07:04,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:04,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:07:04,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:07:04,835 INFO L87 Difference]: Start difference. First operand 1009 states and 1325 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) [2022-12-14 10:07:07,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:07,155 INFO L93 Difference]: Finished difference Result 1715 states and 2247 transitions. [2022-12-14 10:07:07,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:07:07,155 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 [2022-12-14 10:07:07,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:07,156 INFO L225 Difference]: With dead ends: 1715 [2022-12-14 10:07:07,157 INFO L226 Difference]: Without dead ends: 1643 [2022-12-14 10:07:07,157 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 [2022-12-14 10:07:07,157 INFO L413 NwaCegarLoop]: 1259 mSDtfsCounter, 4206 mSDsluCounter, 4215 mSDsCounter, 0 mSdLazyCounter, 4229 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4206 SdHoareTripleChecker+Valid, 5474 SdHoareTripleChecker+Invalid, 4232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:07,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4206 Valid, 5474 Invalid, 4232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4229 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 10:07:07,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-12-14 10:07:07,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1009. [2022-12-14 10:07:07,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.3510204081632653) internal successors, (1324), 1008 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:07:07,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1324 transitions. [2022-12-14 10:07:07,434 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1324 transitions. Word has length 113 [2022-12-14 10:07:07,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:07,434 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1324 transitions. [2022-12-14 10:07:07,434 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) [2022-12-14 10:07:07,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1324 transitions. [2022-12-14 10:07:07,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:07:07,435 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:07,435 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] [2022-12-14 10:07:07,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-14 10:07:07,435 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:07:07,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:07,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1072781494, now seen corresponding path program 1 times [2022-12-14 10:07:07,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:07,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514765986] [2022-12-14 10:07:07,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:07,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:07,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:07,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:07,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514765986] [2022-12-14 10:07:07,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514765986] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:07,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:07,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:07:07,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22722749] [2022-12-14 10:07:07,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:07,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:07:07,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:07,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:07:07,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:07:07,601 INFO L87 Difference]: Start difference. First operand 1009 states and 1324 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) [2022-12-14 10:07:09,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:09,980 INFO L93 Difference]: Finished difference Result 1725 states and 2258 transitions. [2022-12-14 10:07:09,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:07:09,981 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 [2022-12-14 10:07:09,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:09,982 INFO L225 Difference]: With dead ends: 1725 [2022-12-14 10:07:09,982 INFO L226 Difference]: Without dead ends: 1643 [2022-12-14 10:07:09,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:07:09,983 INFO L413 NwaCegarLoop]: 1042 mSDtfsCounter, 3156 mSDsluCounter, 3265 mSDsCounter, 0 mSdLazyCounter, 3639 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3156 SdHoareTripleChecker+Valid, 4307 SdHoareTripleChecker+Invalid, 3644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:09,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3156 Valid, 4307 Invalid, 3644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3639 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 10:07:09,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-12-14 10:07:10,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1009. [2022-12-14 10:07:10,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.35) internal successors, (1323), 1008 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:07:10,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1323 transitions. [2022-12-14 10:07:10,266 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1323 transitions. Word has length 113 [2022-12-14 10:07:10,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:10,266 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1323 transitions. [2022-12-14 10:07:10,267 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) [2022-12-14 10:07:10,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1323 transitions. [2022-12-14 10:07:10,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:07:10,268 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:10,268 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:10,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-14 10:07:10,268 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)] === [2022-12-14 10:07:10,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:10,268 INFO L85 PathProgramCache]: Analyzing trace with hash 76277264, now seen corresponding path program 1 times [2022-12-14 10:07:10,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:10,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377898391] [2022-12-14 10:07:10,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:10,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:10,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:10,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:10,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377898391] [2022-12-14 10:07:10,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377898391] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:10,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:10,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:07:10,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614526593] [2022-12-14 10:07:10,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:10,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:07:10,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:10,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:07:10,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:07:10,444 INFO L87 Difference]: Start difference. First operand 1009 states and 1323 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) [2022-12-14 10:07:12,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:12,852 INFO L93 Difference]: Finished difference Result 1680 states and 2184 transitions. [2022-12-14 10:07:12,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:07:12,853 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 [2022-12-14 10:07:12,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:12,854 INFO L225 Difference]: With dead ends: 1680 [2022-12-14 10:07:12,854 INFO L226 Difference]: Without dead ends: 1615 [2022-12-14 10:07:12,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:07:12,855 INFO L413 NwaCegarLoop]: 895 mSDtfsCounter, 4982 mSDsluCounter, 2870 mSDsCounter, 0 mSdLazyCounter, 3315 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4982 SdHoareTripleChecker+Valid, 3765 SdHoareTripleChecker+Invalid, 3318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:12,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4982 Valid, 3765 Invalid, 3318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3315 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 10:07:12,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-12-14 10:07:13,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1009. [2022-12-14 10:07:13,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.3489795918367347) internal successors, (1322), 1008 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:07:13,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1322 transitions. [2022-12-14 10:07:13,141 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1322 transitions. Word has length 113 [2022-12-14 10:07:13,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:13,141 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1322 transitions. [2022-12-14 10:07:13,141 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) [2022-12-14 10:07:13,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1322 transitions. [2022-12-14 10:07:13,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:07:13,142 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:13,142 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] [2022-12-14 10:07:13,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-14 10:07:13,143 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)] === [2022-12-14 10:07:13,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:13,143 INFO L85 PathProgramCache]: Analyzing trace with hash 277160724, now seen corresponding path program 1 times [2022-12-14 10:07:13,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:13,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540336052] [2022-12-14 10:07:13,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:13,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:13,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:13,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:13,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540336052] [2022-12-14 10:07:13,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540336052] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:13,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:13,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:07:13,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878900172] [2022-12-14 10:07:13,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:13,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:07:13,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:13,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:07:13,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:07:13,313 INFO L87 Difference]: Start difference. First operand 1009 states and 1322 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) [2022-12-14 10:07:15,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:15,477 INFO L93 Difference]: Finished difference Result 1680 states and 2183 transitions. [2022-12-14 10:07:15,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:07:15,477 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 [2022-12-14 10:07:15,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:15,478 INFO L225 Difference]: With dead ends: 1680 [2022-12-14 10:07:15,478 INFO L226 Difference]: Without dead ends: 1615 [2022-12-14 10:07:15,479 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 [2022-12-14 10:07:15,479 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 3346 mSDsluCounter, 2843 mSDsCounter, 0 mSdLazyCounter, 3283 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3346 SdHoareTripleChecker+Valid, 3744 SdHoareTripleChecker+Invalid, 3287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:15,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3346 Valid, 3744 Invalid, 3287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3283 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 10:07:15,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-12-14 10:07:15,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1009. [2022-12-14 10:07:15,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.3479591836734695) internal successors, (1321), 1008 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:07:15,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1321 transitions. [2022-12-14 10:07:15,817 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1321 transitions. Word has length 113 [2022-12-14 10:07:15,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:15,817 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1321 transitions. [2022-12-14 10:07:15,817 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) [2022-12-14 10:07:15,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1321 transitions. [2022-12-14 10:07:15,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:07:15,818 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:15,818 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, 1, 1] [2022-12-14 10:07:15,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-12-14 10:07:15,818 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)] === [2022-12-14 10:07:15,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:15,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1104510179, now seen corresponding path program 1 times [2022-12-14 10:07:15,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:15,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461616434] [2022-12-14 10:07:15,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:15,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:15,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:15,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:15,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461616434] [2022-12-14 10:07:15,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461616434] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:15,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:15,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:07:15,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407504170] [2022-12-14 10:07:15,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:15,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:07:15,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:15,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:07:15,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:07:15,981 INFO L87 Difference]: Start difference. First operand 1009 states and 1321 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) [2022-12-14 10:07:18,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:18,174 INFO L93 Difference]: Finished difference Result 1679 states and 2180 transitions. [2022-12-14 10:07:18,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:07:18,174 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 [2022-12-14 10:07:18,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:18,175 INFO L225 Difference]: With dead ends: 1679 [2022-12-14 10:07:18,175 INFO L226 Difference]: Without dead ends: 1615 [2022-12-14 10:07:18,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:07:18,176 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 5059 mSDsluCounter, 2814 mSDsCounter, 0 mSdLazyCounter, 3201 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5059 SdHoareTripleChecker+Valid, 3688 SdHoareTripleChecker+Invalid, 3205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:18,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5059 Valid, 3688 Invalid, 3205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3201 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 10:07:18,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-12-14 10:07:18,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1009. [2022-12-14 10:07:18,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.346938775510204) internal successors, (1320), 1008 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:07:18,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1320 transitions. [2022-12-14 10:07:18,474 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1320 transitions. Word has length 113 [2022-12-14 10:07:18,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:18,474 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1320 transitions. [2022-12-14 10:07:18,474 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) [2022-12-14 10:07:18,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1320 transitions. [2022-12-14 10:07:18,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:07:18,475 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:18,475 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] [2022-12-14 10:07:18,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-12-14 10:07:18,475 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)] === [2022-12-14 10:07:18,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:18,475 INFO L85 PathProgramCache]: Analyzing trace with hash -809939846, now seen corresponding path program 1 times [2022-12-14 10:07:18,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:18,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700525504] [2022-12-14 10:07:18,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:18,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:18,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:18,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:18,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700525504] [2022-12-14 10:07:18,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700525504] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:18,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:18,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:07:18,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348640730] [2022-12-14 10:07:18,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:18,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:07:18,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:18,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:07:18,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:07:18,644 INFO L87 Difference]: Start difference. First operand 1009 states and 1320 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) [2022-12-14 10:07:21,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:21,438 INFO L93 Difference]: Finished difference Result 1679 states and 2179 transitions. [2022-12-14 10:07:21,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:07:21,439 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 [2022-12-14 10:07:21,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:21,440 INFO L225 Difference]: With dead ends: 1679 [2022-12-14 10:07:21,440 INFO L226 Difference]: Without dead ends: 1615 [2022-12-14 10:07:21,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:07:21,441 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 3390 mSDsluCounter, 2814 mSDsCounter, 0 mSdLazyCounter, 3197 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3390 SdHoareTripleChecker+Valid, 3688 SdHoareTripleChecker+Invalid, 3201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:21,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3390 Valid, 3688 Invalid, 3201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3197 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 10:07:21,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-12-14 10:07:21,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1009. [2022-12-14 10:07:21,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 980 states have (on average 1.3459183673469388) internal successors, (1319), 1008 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:07:21,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1319 transitions. [2022-12-14 10:07:21,741 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1319 transitions. Word has length 113 [2022-12-14 10:07:21,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:21,741 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1319 transitions. [2022-12-14 10:07:21,741 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) [2022-12-14 10:07:21,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1319 transitions. [2022-12-14 10:07:21,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:07:21,742 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:21,742 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] [2022-12-14 10:07:21,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-12-14 10:07:21,742 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)] === [2022-12-14 10:07:21,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:21,743 INFO L85 PathProgramCache]: Analyzing trace with hash -856470652, now seen corresponding path program 1 times [2022-12-14 10:07:21,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:21,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925586285] [2022-12-14 10:07:21,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:21,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:22,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:22,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:22,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925586285] [2022-12-14 10:07:22,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925586285] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:22,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:22,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 10:07:22,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889601787] [2022-12-14 10:07:22,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:22,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 10:07:22,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:22,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 10:07:22,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-14 10:07:22,057 INFO L87 Difference]: Start difference. First operand 1009 states and 1319 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-12-14 10:07:26,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:26,274 INFO L93 Difference]: Finished difference Result 2085 states and 2725 transitions. [2022-12-14 10:07:26,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 10:07:26,275 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-12-14 10:07:26,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:26,276 INFO L225 Difference]: With dead ends: 2085 [2022-12-14 10:07:26,276 INFO L226 Difference]: Without dead ends: 2008 [2022-12-14 10:07:26,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-12-14 10:07:26,277 INFO L413 NwaCegarLoop]: 1090 mSDtfsCounter, 8378 mSDsluCounter, 4099 mSDsCounter, 0 mSdLazyCounter, 4565 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8378 SdHoareTripleChecker+Valid, 5189 SdHoareTripleChecker+Invalid, 4890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 4565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:26,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8378 Valid, 5189 Invalid, 4890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 4565 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 10:07:26,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2022-12-14 10:07:26,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 1013. [2022-12-14 10:07:26,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 984 states have (on average 1.3445121951219512) internal successors, (1323), 1012 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:07:26,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1323 transitions. [2022-12-14 10:07:26,587 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1323 transitions. Word has length 113 [2022-12-14 10:07:26,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:26,587 INFO L495 AbstractCegarLoop]: Abstraction has 1013 states and 1323 transitions. [2022-12-14 10:07:26,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-12-14 10:07:26,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1323 transitions. [2022-12-14 10:07:26,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:07:26,589 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:26,589 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] [2022-12-14 10:07:26,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-12-14 10:07:26,589 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:07:26,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:26,590 INFO L85 PathProgramCache]: Analyzing trace with hash 713173466, now seen corresponding path program 1 times [2022-12-14 10:07:26,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:26,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179892742] [2022-12-14 10:07:26,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:26,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:26,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:26,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:26,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:26,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179892742] [2022-12-14 10:07:26,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179892742] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:26,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:26,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:07:26,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558875940] [2022-12-14 10:07:26,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:26,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:07:26,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:26,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:07:26,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:07:26,772 INFO L87 Difference]: Start difference. First operand 1013 states and 1323 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) [2022-12-14 10:07:29,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:29,098 INFO L93 Difference]: Finished difference Result 1688 states and 2186 transitions. [2022-12-14 10:07:29,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:07:29,098 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 [2022-12-14 10:07:29,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:29,099 INFO L225 Difference]: With dead ends: 1688 [2022-12-14 10:07:29,099 INFO L226 Difference]: Without dead ends: 1619 [2022-12-14 10:07:29,100 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 [2022-12-14 10:07:29,100 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 5008 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 3262 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5008 SdHoareTripleChecker+Valid, 3740 SdHoareTripleChecker+Invalid, 3266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:29,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5008 Valid, 3740 Invalid, 3266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3262 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 10:07:29,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2022-12-14 10:07:29,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1013. [2022-12-14 10:07:29,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 984 states have (on average 1.3434959349593496) internal successors, (1322), 1012 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:07:29,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1322 transitions. [2022-12-14 10:07:29,426 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1322 transitions. Word has length 113 [2022-12-14 10:07:29,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:29,427 INFO L495 AbstractCegarLoop]: Abstraction has 1013 states and 1322 transitions. [2022-12-14 10:07:29,427 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) [2022-12-14 10:07:29,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1322 transitions. [2022-12-14 10:07:29,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:07:29,428 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:29,428 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] [2022-12-14 10:07:29,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-12-14 10:07:29,428 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:07:29,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:29,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1349460328, now seen corresponding path program 1 times [2022-12-14 10:07:29,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:29,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127252705] [2022-12-14 10:07:29,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:29,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:29,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:29,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:29,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:29,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127252705] [2022-12-14 10:07:29,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127252705] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:29,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:29,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:07:29,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912593584] [2022-12-14 10:07:29,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:29,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:07:29,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:29,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:07:29,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:07:29,594 INFO L87 Difference]: Start difference. First operand 1013 states and 1322 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) [2022-12-14 10:07:31,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:31,610 INFO L93 Difference]: Finished difference Result 1684 states and 2181 transitions. [2022-12-14 10:07:31,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:07:31,611 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 [2022-12-14 10:07:31,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:31,612 INFO L225 Difference]: With dead ends: 1684 [2022-12-14 10:07:31,612 INFO L226 Difference]: Without dead ends: 1619 [2022-12-14 10:07:31,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:07:31,613 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 5058 mSDsluCounter, 2809 mSDsCounter, 0 mSdLazyCounter, 3180 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5058 SdHoareTripleChecker+Valid, 3683 SdHoareTripleChecker+Invalid, 3184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:31,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5058 Valid, 3683 Invalid, 3184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3180 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 10:07:31,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2022-12-14 10:07:31,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1013. [2022-12-14 10:07:31,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 984 states have (on average 1.342479674796748) internal successors, (1321), 1012 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:07:32,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1321 transitions. [2022-12-14 10:07:32,001 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1321 transitions. Word has length 113 [2022-12-14 10:07:32,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:32,001 INFO L495 AbstractCegarLoop]: Abstraction has 1013 states and 1321 transitions. [2022-12-14 10:07:32,001 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) [2022-12-14 10:07:32,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1321 transitions. [2022-12-14 10:07:32,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:07:32,003 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:32,003 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] [2022-12-14 10:07:32,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-12-14 10:07:32,003 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:07:32,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:32,004 INFO L85 PathProgramCache]: Analyzing trace with hash 753916519, now seen corresponding path program 1 times [2022-12-14 10:07:32,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:32,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359745355] [2022-12-14 10:07:32,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:32,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:32,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:32,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:32,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359745355] [2022-12-14 10:07:32,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359745355] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:32,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:32,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 10:07:32,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464882921] [2022-12-14 10:07:32,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:32,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 10:07:32,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:32,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 10:07:32,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-14 10:07:32,330 INFO L87 Difference]: Start difference. First operand 1013 states and 1321 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-12-14 10:07:36,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:36,416 INFO L93 Difference]: Finished difference Result 2112 states and 2745 transitions. [2022-12-14 10:07:36,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 10:07:36,416 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-12-14 10:07:36,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:36,417 INFO L225 Difference]: With dead ends: 2112 [2022-12-14 10:07:36,417 INFO L226 Difference]: Without dead ends: 2021 [2022-12-14 10:07:36,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-12-14 10:07:36,418 INFO L413 NwaCegarLoop]: 1100 mSDtfsCounter, 8014 mSDsluCounter, 4802 mSDsCounter, 0 mSdLazyCounter, 5215 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8014 SdHoareTripleChecker+Valid, 5902 SdHoareTripleChecker+Invalid, 5538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 5215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:36,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8014 Valid, 5902 Invalid, 5538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 5215 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-14 10:07:36,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2021 states. [2022-12-14 10:07:36,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2021 to 1017. [2022-12-14 10:07:36,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 988 states have (on average 1.341093117408907) internal successors, (1325), 1016 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:07:36,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1325 transitions. [2022-12-14 10:07:36,747 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1325 transitions. Word has length 113 [2022-12-14 10:07:36,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:36,747 INFO L495 AbstractCegarLoop]: Abstraction has 1017 states and 1325 transitions. [2022-12-14 10:07:36,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-12-14 10:07:36,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1325 transitions. [2022-12-14 10:07:36,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:07:36,748 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:36,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:36,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-12-14 10:07:36,748 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:07:36,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:36,749 INFO L85 PathProgramCache]: Analyzing trace with hash 345071291, now seen corresponding path program 1 times [2022-12-14 10:07:36,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:36,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767622674] [2022-12-14 10:07:36,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:36,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:36,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:36,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:36,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767622674] [2022-12-14 10:07:36,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767622674] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:36,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:36,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:07:36,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040903146] [2022-12-14 10:07:36,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:36,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:07:36,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:36,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:07:36,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:07:36,943 INFO L87 Difference]: Start difference. First operand 1017 states and 1325 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) [2022-12-14 10:07:39,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:39,308 INFO L93 Difference]: Finished difference Result 1692 states and 2187 transitions. [2022-12-14 10:07:39,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:07:39,309 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 [2022-12-14 10:07:39,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:39,310 INFO L225 Difference]: With dead ends: 1692 [2022-12-14 10:07:39,310 INFO L226 Difference]: Without dead ends: 1623 [2022-12-14 10:07:39,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:07:39,311 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 5059 mSDsluCounter, 2807 mSDsCounter, 0 mSdLazyCounter, 3177 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5059 SdHoareTripleChecker+Valid, 3681 SdHoareTripleChecker+Invalid, 3181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:39,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5059 Valid, 3681 Invalid, 3181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3177 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 10:07:39,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2022-12-14 10:07:39,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1017. [2022-12-14 10:07:39,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 988 states have (on average 1.3400809716599191) internal successors, (1324), 1016 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:07:39,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1324 transitions. [2022-12-14 10:07:39,658 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1324 transitions. Word has length 113 [2022-12-14 10:07:39,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:39,658 INFO L495 AbstractCegarLoop]: Abstraction has 1017 states and 1324 transitions. [2022-12-14 10:07:39,658 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) [2022-12-14 10:07:39,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1324 transitions. [2022-12-14 10:07:39,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:07:39,659 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:39,659 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] [2022-12-14 10:07:39,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-12-14 10:07:39,659 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)] === [2022-12-14 10:07:39,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:39,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1259696775, now seen corresponding path program 1 times [2022-12-14 10:07:39,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:39,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928026295] [2022-12-14 10:07:39,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:39,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:39,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:39,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:39,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928026295] [2022-12-14 10:07:39,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928026295] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:39,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:39,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 10:07:39,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869729825] [2022-12-14 10:07:39,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:39,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 10:07:39,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:39,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 10:07:39,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-14 10:07:39,973 INFO L87 Difference]: Start difference. First operand 1017 states and 1324 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-12-14 10:07:44,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:44,763 INFO L93 Difference]: Finished difference Result 2095 states and 2727 transitions. [2022-12-14 10:07:44,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 10:07:44,763 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-12-14 10:07:44,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:44,765 INFO L225 Difference]: With dead ends: 2095 [2022-12-14 10:07:44,765 INFO L226 Difference]: Without dead ends: 2013 [2022-12-14 10:07:44,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-12-14 10:07:44,766 INFO L413 NwaCegarLoop]: 1038 mSDtfsCounter, 9032 mSDsluCounter, 4516 mSDsCounter, 0 mSdLazyCounter, 4809 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9032 SdHoareTripleChecker+Valid, 5554 SdHoareTripleChecker+Invalid, 5154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 4809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:44,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9032 Valid, 5554 Invalid, 5154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 4809 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 10:07:44,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states. [2022-12-14 10:07:45,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 1021. [2022-12-14 10:07:45,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 992 states have (on average 1.3387096774193548) internal successors, (1328), 1020 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:07:45,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1328 transitions. [2022-12-14 10:07:45,111 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1328 transitions. Word has length 113 [2022-12-14 10:07:45,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:45,111 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1328 transitions. [2022-12-14 10:07:45,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-12-14 10:07:45,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1328 transitions. [2022-12-14 10:07:45,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:07:45,112 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:45,112 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] [2022-12-14 10:07:45,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-12-14 10:07:45,113 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)] === [2022-12-14 10:07:45,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:45,113 INFO L85 PathProgramCache]: Analyzing trace with hash -110638017, now seen corresponding path program 1 times [2022-12-14 10:07:45,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:45,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801598471] [2022-12-14 10:07:45,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:45,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:45,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:45,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:45,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:45,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801598471] [2022-12-14 10:07:45,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801598471] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:45,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:45,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:07:45,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050758690] [2022-12-14 10:07:45,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:45,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:07:45,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:45,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:07:45,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:07:45,297 INFO L87 Difference]: Start difference. First operand 1021 states and 1328 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) [2022-12-14 10:07:48,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:48,193 INFO L93 Difference]: Finished difference Result 1692 states and 2187 transitions. [2022-12-14 10:07:48,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:07:48,194 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 [2022-12-14 10:07:48,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:48,195 INFO L225 Difference]: With dead ends: 1692 [2022-12-14 10:07:48,195 INFO L226 Difference]: Without dead ends: 1627 [2022-12-14 10:07:48,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:07:48,196 INFO L413 NwaCegarLoop]: 895 mSDtfsCounter, 4961 mSDsluCounter, 2870 mSDsCounter, 0 mSdLazyCounter, 3277 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4961 SdHoareTripleChecker+Valid, 3765 SdHoareTripleChecker+Invalid, 3280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:48,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4961 Valid, 3765 Invalid, 3280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3277 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 10:07:48,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2022-12-14 10:07:48,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1021. [2022-12-14 10:07:48,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 992 states have (on average 1.3377016129032258) internal successors, (1327), 1020 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:07:48,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1327 transitions. [2022-12-14 10:07:48,549 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1327 transitions. Word has length 113 [2022-12-14 10:07:48,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:48,550 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1327 transitions. [2022-12-14 10:07:48,550 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) [2022-12-14 10:07:48,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1327 transitions. [2022-12-14 10:07:48,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:07:48,551 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:48,551 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, 1, 1, 1, 1] [2022-12-14 10:07:48,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-12-14 10:07:48,551 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)] === [2022-12-14 10:07:48,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:48,551 INFO L85 PathProgramCache]: Analyzing trace with hash 90245443, now seen corresponding path program 1 times [2022-12-14 10:07:48,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:48,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030498944] [2022-12-14 10:07:48,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:48,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:48,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:48,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:48,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030498944] [2022-12-14 10:07:48,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030498944] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:48,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:48,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:07:48,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014640107] [2022-12-14 10:07:48,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:48,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:07:48,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:48,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:07:48,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:07:48,716 INFO L87 Difference]: Start difference. First operand 1021 states and 1327 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) [2022-12-14 10:07:51,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:51,355 INFO L93 Difference]: Finished difference Result 1692 states and 2186 transitions. [2022-12-14 10:07:51,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:07:51,356 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 [2022-12-14 10:07:51,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:51,357 INFO L225 Difference]: With dead ends: 1692 [2022-12-14 10:07:51,357 INFO L226 Difference]: Without dead ends: 1627 [2022-12-14 10:07:51,357 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 [2022-12-14 10:07:51,358 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 4993 mSDsluCounter, 2843 mSDsCounter, 0 mSdLazyCounter, 3245 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4993 SdHoareTripleChecker+Valid, 3744 SdHoareTripleChecker+Invalid, 3249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:51,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4993 Valid, 3744 Invalid, 3249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3245 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 10:07:51,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2022-12-14 10:07:51,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1021. [2022-12-14 10:07:51,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 992 states have (on average 1.3366935483870968) internal successors, (1326), 1020 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:07:51,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1326 transitions. [2022-12-14 10:07:51,948 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1326 transitions. Word has length 113 [2022-12-14 10:07:51,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:51,949 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1326 transitions. [2022-12-14 10:07:51,949 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) [2022-12-14 10:07:51,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1326 transitions. [2022-12-14 10:07:51,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:07:51,950 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:51,950 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] [2022-12-14 10:07:51,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-12-14 10:07:51,951 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)] === [2022-12-14 10:07:51,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:51,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1075080690, now seen corresponding path program 1 times [2022-12-14 10:07:51,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:51,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625338833] [2022-12-14 10:07:51,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:51,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:52,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:52,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:52,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625338833] [2022-12-14 10:07:52,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625338833] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:52,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:52,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:07:52,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471148952] [2022-12-14 10:07:52,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:52,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:07:52,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:52,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:07:52,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:07:52,176 INFO L87 Difference]: Start difference. First operand 1021 states and 1326 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) [2022-12-14 10:07:54,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:54,178 INFO L93 Difference]: Finished difference Result 1691 states and 2183 transitions. [2022-12-14 10:07:54,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:07:54,179 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 [2022-12-14 10:07:54,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:54,180 INFO L225 Difference]: With dead ends: 1691 [2022-12-14 10:07:54,180 INFO L226 Difference]: Without dead ends: 1627 [2022-12-14 10:07:54,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:07:54,181 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 5038 mSDsluCounter, 2814 mSDsCounter, 0 mSdLazyCounter, 3163 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5038 SdHoareTripleChecker+Valid, 3688 SdHoareTripleChecker+Invalid, 3167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:54,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5038 Valid, 3688 Invalid, 3167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3163 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 10:07:54,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2022-12-14 10:07:54,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1021. [2022-12-14 10:07:54,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 992 states have (on average 1.3356854838709677) internal successors, (1325), 1020 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:07:54,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1325 transitions. [2022-12-14 10:07:54,534 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1325 transitions. Word has length 113 [2022-12-14 10:07:54,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:54,535 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1325 transitions. [2022-12-14 10:07:54,535 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) [2022-12-14 10:07:54,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1325 transitions. [2022-12-14 10:07:54,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:07:54,536 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:54,536 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] [2022-12-14 10:07:54,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-12-14 10:07:54,536 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:07:54,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:54,536 INFO L85 PathProgramCache]: Analyzing trace with hash -693878534, now seen corresponding path program 1 times [2022-12-14 10:07:54,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:54,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085938418] [2022-12-14 10:07:54,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:54,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:54,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:54,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:54,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085938418] [2022-12-14 10:07:54,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085938418] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:54,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:54,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:07:54,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883757518] [2022-12-14 10:07:54,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:54,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:07:54,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:54,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:07:54,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:07:54,701 INFO L87 Difference]: Start difference. First operand 1021 states and 1325 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) [2022-12-14 10:07:56,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:56,872 INFO L93 Difference]: Finished difference Result 1734 states and 2249 transitions. [2022-12-14 10:07:56,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:07:56,873 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 [2022-12-14 10:07:56,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:56,874 INFO L225 Difference]: With dead ends: 1734 [2022-12-14 10:07:56,874 INFO L226 Difference]: Without dead ends: 1643 [2022-12-14 10:07:56,874 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 [2022-12-14 10:07:56,875 INFO L413 NwaCegarLoop]: 941 mSDtfsCounter, 4990 mSDsluCounter, 3055 mSDsCounter, 0 mSdLazyCounter, 3260 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4990 SdHoareTripleChecker+Valid, 3996 SdHoareTripleChecker+Invalid, 3265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:56,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4990 Valid, 3996 Invalid, 3265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3260 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 10:07:56,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-12-14 10:07:57,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1021. [2022-12-14 10:07:57,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 992 states have (on average 1.3346774193548387) internal successors, (1324), 1020 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:07:57,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1324 transitions. [2022-12-14 10:07:57,238 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1324 transitions. Word has length 113 [2022-12-14 10:07:57,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:57,238 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1324 transitions. [2022-12-14 10:07:57,238 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) [2022-12-14 10:07:57,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1324 transitions. [2022-12-14 10:07:57,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:07:57,239 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:57,239 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, 1] [2022-12-14 10:07:57,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-12-14 10:07:57,239 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:07:57,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:57,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1102723762, now seen corresponding path program 1 times [2022-12-14 10:07:57,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:57,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635551609] [2022-12-14 10:07:57,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:57,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:57,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:57,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:57,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635551609] [2022-12-14 10:07:57,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635551609] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:57,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:57,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:07:57,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456731527] [2022-12-14 10:07:57,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:57,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:07:57,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:57,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:07:57,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:07:57,424 INFO L87 Difference]: Start difference. First operand 1021 states and 1324 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) [2022-12-14 10:07:59,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:59,890 INFO L93 Difference]: Finished difference Result 1696 states and 2186 transitions. [2022-12-14 10:07:59,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:07:59,890 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 [2022-12-14 10:07:59,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:59,891 INFO L225 Difference]: With dead ends: 1696 [2022-12-14 10:07:59,891 INFO L226 Difference]: Without dead ends: 1627 [2022-12-14 10:07:59,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:07:59,892 INFO L413 NwaCegarLoop]: 900 mSDtfsCounter, 4960 mSDsluCounter, 2883 mSDsCounter, 0 mSdLazyCounter, 3214 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4960 SdHoareTripleChecker+Valid, 3783 SdHoareTripleChecker+Invalid, 3218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:59,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4960 Valid, 3783 Invalid, 3218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3214 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 10:07:59,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2022-12-14 10:08:00,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1021. [2022-12-14 10:08:00,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 992 states have (on average 1.3336693548387097) internal successors, (1323), 1020 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:00,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1323 transitions. [2022-12-14 10:08:00,290 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1323 transitions. Word has length 113 [2022-12-14 10:08:00,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:00,290 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1323 transitions. [2022-12-14 10:08:00,290 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) [2022-12-14 10:08:00,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1323 transitions. [2022-12-14 10:08:00,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:08:00,291 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:00,291 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] [2022-12-14 10:08:00,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-12-14 10:08:00,292 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:08:00,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:00,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1257063176, now seen corresponding path program 1 times [2022-12-14 10:08:00,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:00,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824445795] [2022-12-14 10:08:00,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:00,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:00,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:00,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:00,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824445795] [2022-12-14 10:08:00,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824445795] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:08:00,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:08:00,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 10:08:00,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079801518] [2022-12-14 10:08:00,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:08:00,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 10:08:00,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:00,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 10:08:00,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-14 10:08:00,612 INFO L87 Difference]: Start difference. First operand 1021 states and 1323 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-12-14 10:08:05,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:08:05,238 INFO L93 Difference]: Finished difference Result 2267 states and 2931 transitions. [2022-12-14 10:08:05,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 10:08:05,239 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-12-14 10:08:05,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:08:05,240 INFO L225 Difference]: With dead ends: 2267 [2022-12-14 10:08:05,240 INFO L226 Difference]: Without dead ends: 2131 [2022-12-14 10:08:05,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-12-14 10:08:05,241 INFO L413 NwaCegarLoop]: 1262 mSDtfsCounter, 8122 mSDsluCounter, 4494 mSDsCounter, 0 mSdLazyCounter, 4858 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8122 SdHoareTripleChecker+Valid, 5756 SdHoareTripleChecker+Invalid, 5163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 4858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:08:05,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8122 Valid, 5756 Invalid, 5163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 4858 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 10:08:05,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2131 states. [2022-12-14 10:08:05,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2131 to 1025. [2022-12-14 10:08:05,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 996 states have (on average 1.3323293172690762) internal successors, (1327), 1024 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:05,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1327 transitions. [2022-12-14 10:08:05,639 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1327 transitions. Word has length 113 [2022-12-14 10:08:05,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:05,640 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1327 transitions. [2022-12-14 10:08:05,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-12-14 10:08:05,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1327 transitions. [2022-12-14 10:08:05,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:08:05,642 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:05,642 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] [2022-12-14 10:08:05,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-12-14 10:08:05,642 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:08:05,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:05,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1190152855, now seen corresponding path program 1 times [2022-12-14 10:08:05,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:05,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292002651] [2022-12-14 10:08:05,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:05,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:05,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:05,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:05,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:05,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292002651] [2022-12-14 10:08:05,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292002651] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:08:05,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:08:05,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:08:05,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096465621] [2022-12-14 10:08:05,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:08:05,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:08:05,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:05,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:08:05,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:08:05,946 INFO L87 Difference]: Start difference. First operand 1025 states and 1327 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) [2022-12-14 10:08:09,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:08:09,241 INFO L93 Difference]: Finished difference Result 1729 states and 2242 transitions. [2022-12-14 10:08:09,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:08:09,242 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 [2022-12-14 10:08:09,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:08:09,243 INFO L225 Difference]: With dead ends: 1729 [2022-12-14 10:08:09,243 INFO L226 Difference]: Without dead ends: 1647 [2022-12-14 10:08:09,243 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 [2022-12-14 10:08:09,243 INFO L413 NwaCegarLoop]: 1077 mSDtfsCounter, 4346 mSDsluCounter, 3899 mSDsCounter, 0 mSdLazyCounter, 3775 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4346 SdHoareTripleChecker+Valid, 4976 SdHoareTripleChecker+Invalid, 3779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:08:09,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4346 Valid, 4976 Invalid, 3779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3775 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 10:08:09,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-12-14 10:08:09,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1025. [2022-12-14 10:08:09,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 996 states have (on average 1.3313253012048192) internal successors, (1326), 1024 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:09,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1326 transitions. [2022-12-14 10:08:09,644 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1326 transitions. Word has length 113 [2022-12-14 10:08:09,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:09,644 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1326 transitions. [2022-12-14 10:08:09,644 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) [2022-12-14 10:08:09,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1326 transitions. [2022-12-14 10:08:09,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:08:09,645 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:09,645 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] [2022-12-14 10:08:09,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-12-14 10:08:09,645 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)] === [2022-12-14 10:08:09,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:09,646 INFO L85 PathProgramCache]: Analyzing trace with hash -41094097, now seen corresponding path program 1 times [2022-12-14 10:08:09,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:09,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970402281] [2022-12-14 10:08:09,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:09,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:09,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:09,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:09,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970402281] [2022-12-14 10:08:09,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970402281] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:08:09,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:08:09,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:08:09,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179150098] [2022-12-14 10:08:09,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:08:09,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:08:09,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:09,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:08:09,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:08:09,838 INFO L87 Difference]: Start difference. First operand 1025 states and 1326 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) [2022-12-14 10:08:12,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:08:12,574 INFO L93 Difference]: Finished difference Result 1696 states and 2184 transitions. [2022-12-14 10:08:12,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:08:12,574 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 [2022-12-14 10:08:12,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:08:12,576 INFO L225 Difference]: With dead ends: 1696 [2022-12-14 10:08:12,576 INFO L226 Difference]: Without dead ends: 1631 [2022-12-14 10:08:12,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:08:12,576 INFO L413 NwaCegarLoop]: 919 mSDtfsCounter, 4874 mSDsluCounter, 2949 mSDsCounter, 0 mSdLazyCounter, 3266 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4874 SdHoareTripleChecker+Valid, 3868 SdHoareTripleChecker+Invalid, 3270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:08:12,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4874 Valid, 3868 Invalid, 3270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3266 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 10:08:12,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2022-12-14 10:08:12,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1025. [2022-12-14 10:08:12,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 996 states have (on average 1.3303212851405624) internal successors, (1325), 1024 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:12,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1325 transitions. [2022-12-14 10:08:12,982 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1325 transitions. Word has length 113 [2022-12-14 10:08:12,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:12,983 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1325 transitions. [2022-12-14 10:08:12,983 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) [2022-12-14 10:08:12,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1325 transitions. [2022-12-14 10:08:12,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:08:12,983 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:12,984 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] [2022-12-14 10:08:12,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-12-14 10:08:12,984 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:08:12,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:12,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1045963746, now seen corresponding path program 1 times [2022-12-14 10:08:12,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:12,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43270505] [2022-12-14 10:08:12,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:12,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:13,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:13,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:13,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43270505] [2022-12-14 10:08:13,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43270505] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:08:13,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:08:13,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:08:13,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232453754] [2022-12-14 10:08:13,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:08:13,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:08:13,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:13,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:08:13,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:08:13,159 INFO L87 Difference]: Start difference. First operand 1025 states and 1325 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) [2022-12-14 10:08:15,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:08:15,735 INFO L93 Difference]: Finished difference Result 1700 states and 2187 transitions. [2022-12-14 10:08:15,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:08:15,735 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 [2022-12-14 10:08:15,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:08:15,737 INFO L225 Difference]: With dead ends: 1700 [2022-12-14 10:08:15,737 INFO L226 Difference]: Without dead ends: 1631 [2022-12-14 10:08:15,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:08:15,737 INFO L413 NwaCegarLoop]: 919 mSDtfsCounter, 4883 mSDsluCounter, 2940 mSDsCounter, 0 mSdLazyCounter, 3258 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4883 SdHoareTripleChecker+Valid, 3859 SdHoareTripleChecker+Invalid, 3262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:08:15,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4883 Valid, 3859 Invalid, 3262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3258 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 10:08:15,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2022-12-14 10:08:16,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1025. [2022-12-14 10:08:16,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 996 states have (on average 1.3293172690763053) internal successors, (1324), 1024 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:16,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1324 transitions. [2022-12-14 10:08:16,146 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1324 transitions. Word has length 113 [2022-12-14 10:08:16,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:16,147 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1324 transitions. [2022-12-14 10:08:16,147 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) [2022-12-14 10:08:16,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1324 transitions. [2022-12-14 10:08:16,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:08:16,148 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:16,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:08:16,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-12-14 10:08:16,148 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:08:16,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:16,148 INFO L85 PathProgramCache]: Analyzing trace with hash -637118518, now seen corresponding path program 1 times [2022-12-14 10:08:16,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:16,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065031881] [2022-12-14 10:08:16,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:16,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:16,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:16,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:16,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065031881] [2022-12-14 10:08:16,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065031881] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:08:16,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:08:16,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 10:08:16,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096702461] [2022-12-14 10:08:16,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:08:16,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 10:08:16,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:16,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 10:08:16,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-14 10:08:16,444 INFO L87 Difference]: Start difference. First operand 1025 states and 1324 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-12-14 10:08:21,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:08:21,341 INFO L93 Difference]: Finished difference Result 2117 states and 2740 transitions. [2022-12-14 10:08:21,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 10:08:21,341 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-12-14 10:08:21,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:08:21,343 INFO L225 Difference]: With dead ends: 2117 [2022-12-14 10:08:21,343 INFO L226 Difference]: Without dead ends: 2026 [2022-12-14 10:08:21,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-12-14 10:08:21,344 INFO L413 NwaCegarLoop]: 1045 mSDtfsCounter, 8723 mSDsluCounter, 3556 mSDsCounter, 0 mSdLazyCounter, 3963 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8723 SdHoareTripleChecker+Valid, 4601 SdHoareTripleChecker+Invalid, 4311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 3963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:08:21,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8723 Valid, 4601 Invalid, 4311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 3963 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 10:08:21,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2022-12-14 10:08:21,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 1029. [2022-12-14 10:08:21,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 1000 states have (on average 1.328) internal successors, (1328), 1028 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:21,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1328 transitions. [2022-12-14 10:08:21,765 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1328 transitions. Word has length 113 [2022-12-14 10:08:21,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:21,765 INFO L495 AbstractCegarLoop]: Abstraction has 1029 states and 1328 transitions. [2022-12-14 10:08:21,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-12-14 10:08:21,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1328 transitions. [2022-12-14 10:08:21,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-12-14 10:08:21,766 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:21,766 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] [2022-12-14 10:08:21,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-12-14 10:08:21,767 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:08:21,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:21,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1684740987, now seen corresponding path program 1 times [2022-12-14 10:08:21,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:21,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865071431] [2022-12-14 10:08:21,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:21,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:21,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:21,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:21,935 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:21,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865071431] [2022-12-14 10:08:21,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865071431] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:08:21,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:08:21,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:08:21,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756958082] [2022-12-14 10:08:21,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:08:21,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:08:21,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:21,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:08:21,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:08:21,936 INFO L87 Difference]: Start difference. First operand 1029 states and 1328 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) [2022-12-14 10:08:24,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:08:24,372 INFO L93 Difference]: Finished difference Result 1738 states and 2246 transitions. [2022-12-14 10:08:24,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:08:24,373 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 [2022-12-14 10:08:24,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:08:24,374 INFO L225 Difference]: With dead ends: 1738 [2022-12-14 10:08:24,374 INFO L226 Difference]: Without dead ends: 1647 [2022-12-14 10:08:24,374 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 [2022-12-14 10:08:24,375 INFO L413 NwaCegarLoop]: 993 mSDtfsCounter, 3171 mSDsluCounter, 3114 mSDsCounter, 0 mSdLazyCounter, 3417 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3171 SdHoareTripleChecker+Valid, 4107 SdHoareTripleChecker+Invalid, 3421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:08:24,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3171 Valid, 4107 Invalid, 3421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3417 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 10:08:24,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-12-14 10:08:24,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1025. [2022-12-14 10:08:24,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 996 states have (on average 1.3283132530120483) internal successors, (1323), 1024 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:24,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1323 transitions. [2022-12-14 10:08:24,796 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1323 transitions. Word has length 114 [2022-12-14 10:08:24,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:24,796 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1323 transitions. [2022-12-14 10:08:24,796 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) [2022-12-14 10:08:24,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1323 transitions. [2022-12-14 10:08:24,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-12-14 10:08:24,797 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:24,797 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] [2022-12-14 10:08:24,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-12-14 10:08:24,797 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:08:24,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:24,797 INFO L85 PathProgramCache]: Analyzing trace with hash 682074120, now seen corresponding path program 1 times [2022-12-14 10:08:24,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:24,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552150533] [2022-12-14 10:08:24,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:24,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:25,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:25,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:25,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552150533] [2022-12-14 10:08:25,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552150533] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:08:25,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:08:25,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 10:08:25,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324903424] [2022-12-14 10:08:25,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:08:25,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 10:08:25,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:25,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 10:08:25,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-14 10:08:25,191 INFO L87 Difference]: Start difference. First operand 1025 states and 1323 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) [2022-12-14 10:08:27,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:08:27,928 INFO L93 Difference]: Finished difference Result 2164 states and 2697 transitions. [2022-12-14 10:08:27,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 10:08:27,929 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 [2022-12-14 10:08:27,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:08:27,930 INFO L225 Difference]: With dead ends: 2164 [2022-12-14 10:08:27,931 INFO L226 Difference]: Without dead ends: 1731 [2022-12-14 10:08:27,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-12-14 10:08:27,931 INFO L413 NwaCegarLoop]: 1360 mSDtfsCounter, 4632 mSDsluCounter, 4397 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4632 SdHoareTripleChecker+Valid, 5757 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:08:27,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4632 Valid, 5757 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:08:27,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2022-12-14 10:08:28,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 649. [2022-12-14 10:08:28,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 627 states have (on average 1.3046251993620415) internal successors, (818), 648 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:28,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 818 transitions. [2022-12-14 10:08:28,337 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 818 transitions. Word has length 114 [2022-12-14 10:08:28,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:28,337 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 818 transitions. [2022-12-14 10:08:28,337 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) [2022-12-14 10:08:28,337 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 818 transitions. [2022-12-14 10:08:28,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-12-14 10:08:28,338 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:28,338 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] [2022-12-14 10:08:28,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-12-14 10:08:28,339 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:08:28,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:28,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1953304806, now seen corresponding path program 1 times [2022-12-14 10:08:28,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:28,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959548761] [2022-12-14 10:08:28,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:28,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:28,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:28,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:28,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959548761] [2022-12-14 10:08:28,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959548761] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:08:28,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:08:28,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:08:28,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914717401] [2022-12-14 10:08:28,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:08:28,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:08:28,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:28,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:08:28,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:08:28,617 INFO L87 Difference]: Start difference. First operand 649 states and 818 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) [2022-12-14 10:08:30,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:08:30,434 INFO L93 Difference]: Finished difference Result 1164 states and 1475 transitions. [2022-12-14 10:08:30,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:08:30,435 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 [2022-12-14 10:08:30,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:08:30,435 INFO L225 Difference]: With dead ends: 1164 [2022-12-14 10:08:30,435 INFO L226 Difference]: Without dead ends: 1073 [2022-12-14 10:08:30,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:08:30,436 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 3115 mSDsluCounter, 1863 mSDsCounter, 0 mSdLazyCounter, 2032 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3115 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 2037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:08:30,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3115 Valid, 2486 Invalid, 2037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2032 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 10:08:30,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-12-14 10:08:30,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 645. [2022-12-14 10:08:30,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 623 states have (on average 1.304975922953451) internal successors, (813), 644 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:30,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 813 transitions. [2022-12-14 10:08:30,802 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 813 transitions. Word has length 114 [2022-12-14 10:08:30,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:30,802 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 813 transitions. [2022-12-14 10:08:30,802 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) [2022-12-14 10:08:30,802 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 813 transitions. [2022-12-14 10:08:30,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-12-14 10:08:30,803 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:30,803 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] [2022-12-14 10:08:30,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-12-14 10:08:30,804 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:08:30,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:30,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1294830011, now seen corresponding path program 1 times [2022-12-14 10:08:30,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:30,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052641556] [2022-12-14 10:08:30,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:30,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:30,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:30,966 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:30,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052641556] [2022-12-14 10:08:30,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052641556] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:08:30,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:08:30,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:08:30,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578881317] [2022-12-14 10:08:30,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:08:30,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:08:30,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:30,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:08:30,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:08:30,968 INFO L87 Difference]: Start difference. First operand 645 states and 813 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) [2022-12-14 10:08:33,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:08:33,319 INFO L93 Difference]: Finished difference Result 1155 states and 1466 transitions. [2022-12-14 10:08:33,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:08:33,320 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 [2022-12-14 10:08:33,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:08:33,321 INFO L225 Difference]: With dead ends: 1155 [2022-12-14 10:08:33,321 INFO L226 Difference]: Without dead ends: 1073 [2022-12-14 10:08:33,321 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 [2022-12-14 10:08:33,322 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 1999 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 2113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1999 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 2117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:08:33,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1999 Valid, 2581 Invalid, 2117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2113 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:08:33,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-12-14 10:08:33,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 641. [2022-12-14 10:08:33,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3053311793214863) internal successors, (808), 640 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:33,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 808 transitions. [2022-12-14 10:08:33,765 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 808 transitions. Word has length 114 [2022-12-14 10:08:33,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:33,766 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 808 transitions. [2022-12-14 10:08:33,766 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) [2022-12-14 10:08:33,766 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 808 transitions. [2022-12-14 10:08:33,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-12-14 10:08:33,766 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:33,766 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] [2022-12-14 10:08:33,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-12-14 10:08:33,767 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:08:33,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:33,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1296495440, now seen corresponding path program 1 times [2022-12-14 10:08:33,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:33,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100734373] [2022-12-14 10:08:33,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:33,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:34,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:34,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:34,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100734373] [2022-12-14 10:08:34,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100734373] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:08:34,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:08:34,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 10:08:34,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766303505] [2022-12-14 10:08:34,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:08:34,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 10:08:34,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:34,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 10:08:34,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-14 10:08:34,211 INFO L87 Difference]: Start difference. First operand 641 states and 808 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 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) [2022-12-14 10:08:36,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:08:36,770 INFO L93 Difference]: Finished difference Result 1236 states and 1567 transitions. [2022-12-14 10:08:36,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:08:36,770 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 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 [2022-12-14 10:08:36,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:08:36,771 INFO L225 Difference]: With dead ends: 1236 [2022-12-14 10:08:36,771 INFO L226 Difference]: Without dead ends: 1178 [2022-12-14 10:08:36,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-12-14 10:08:36,772 INFO L413 NwaCegarLoop]: 1035 mSDtfsCounter, 4448 mSDsluCounter, 4547 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4448 SdHoareTripleChecker+Valid, 5582 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:08:36,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4448 Valid, 5582 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:08:36,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2022-12-14 10:08:37,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 640. [2022-12-14 10:08:37,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 618 states have (on average 1.3042071197411003) internal successors, (806), 639 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:37,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 806 transitions. [2022-12-14 10:08:37,121 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 806 transitions. Word has length 114 [2022-12-14 10:08:37,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:37,121 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 806 transitions. [2022-12-14 10:08:37,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 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) [2022-12-14 10:08:37,121 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 806 transitions. [2022-12-14 10:08:37,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-12-14 10:08:37,122 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:37,122 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, 1, 1, 1, 1] [2022-12-14 10:08:37,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-12-14 10:08:37,122 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:08:37,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:37,122 INFO L85 PathProgramCache]: Analyzing trace with hash -405440613, now seen corresponding path program 1 times [2022-12-14 10:08:37,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:37,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214602720] [2022-12-14 10:08:37,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:37,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:37,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:37,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:37,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214602720] [2022-12-14 10:08:37,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214602720] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:08:37,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:08:37,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:08:37,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783814180] [2022-12-14 10:08:37,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:08:37,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:08:37,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:37,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:08:37,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:08:37,303 INFO L87 Difference]: Start difference. First operand 640 states and 806 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) [2022-12-14 10:08:39,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:08:39,996 INFO L93 Difference]: Finished difference Result 1216 states and 1540 transitions. [2022-12-14 10:08:39,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:08:39,997 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 [2022-12-14 10:08:39,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:08:39,998 INFO L225 Difference]: With dead ends: 1216 [2022-12-14 10:08:39,998 INFO L226 Difference]: Without dead ends: 1080 [2022-12-14 10:08:39,998 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 [2022-12-14 10:08:39,998 INFO L413 NwaCegarLoop]: 755 mSDtfsCounter, 1920 mSDsluCounter, 2148 mSDsCounter, 0 mSdLazyCounter, 2274 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1920 SdHoareTripleChecker+Valid, 2903 SdHoareTripleChecker+Invalid, 2278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:08:39,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1920 Valid, 2903 Invalid, 2278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2274 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 10:08:39,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-12-14 10:08:40,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 636. [2022-12-14 10:08:40,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3045602605863191) internal successors, (801), 635 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:40,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 801 transitions. [2022-12-14 10:08:40,341 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 801 transitions. Word has length 114 [2022-12-14 10:08:40,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:40,341 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 801 transitions. [2022-12-14 10:08:40,341 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) [2022-12-14 10:08:40,341 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 801 transitions. [2022-12-14 10:08:40,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-12-14 10:08:40,341 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:40,342 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] [2022-12-14 10:08:40,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-12-14 10:08:40,342 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:08:40,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:40,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1780891135, now seen corresponding path program 1 times [2022-12-14 10:08:40,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:40,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518706841] [2022-12-14 10:08:40,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:40,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:40,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:40,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:40,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518706841] [2022-12-14 10:08:40,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518706841] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:08:40,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:08:40,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:08:40,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121300240] [2022-12-14 10:08:40,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:08:40,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:08:40,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:40,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:08:40,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:08:40,508 INFO L87 Difference]: Start difference. First operand 636 states and 801 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) [2022-12-14 10:08:42,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:08:42,972 INFO L93 Difference]: Finished difference Result 1159 states and 1468 transitions. [2022-12-14 10:08:42,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:08:42,972 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 [2022-12-14 10:08:42,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:08:42,973 INFO L225 Difference]: With dead ends: 1159 [2022-12-14 10:08:42,973 INFO L226 Difference]: Without dead ends: 1068 [2022-12-14 10:08:42,973 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 [2022-12-14 10:08:42,973 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 2682 mSDsluCounter, 2185 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2682 SdHoareTripleChecker+Valid, 2912 SdHoareTripleChecker+Invalid, 2306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:08:42,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2682 Valid, 2912 Invalid, 2306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 10:08:42,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-12-14 10:08:43,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 632. [2022-12-14 10:08:43,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 610 states have (on average 1.3049180327868852) internal successors, (796), 631 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:43,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 796 transitions. [2022-12-14 10:08:43,318 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 796 transitions. Word has length 114 [2022-12-14 10:08:43,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:43,318 INFO L495 AbstractCegarLoop]: Abstraction has 632 states and 796 transitions. [2022-12-14 10:08:43,318 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) [2022-12-14 10:08:43,318 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 796 transitions. [2022-12-14 10:08:43,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:08:43,319 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:43,319 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] [2022-12-14 10:08:43,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-12-14 10:08:43,319 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)] === [2022-12-14 10:08:43,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:43,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1441073961, now seen corresponding path program 1 times [2022-12-14 10:08:43,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:43,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735075402] [2022-12-14 10:08:43,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:43,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:43,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:43,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:43,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735075402] [2022-12-14 10:08:43,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735075402] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:08:43,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:08:43,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:08:43,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136665441] [2022-12-14 10:08:43,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:08:43,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:08:43,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:43,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:08:43,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:08:43,498 INFO L87 Difference]: Start difference. First operand 632 states and 796 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:45,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:08:45,388 INFO L93 Difference]: Finished difference Result 1079 states and 1350 transitions. [2022-12-14 10:08:45,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:08:45,389 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:08:45,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:08:45,389 INFO L225 Difference]: With dead ends: 1079 [2022-12-14 10:08:45,390 INFO L226 Difference]: Without dead ends: 1020 [2022-12-14 10:08:45,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:08:45,390 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 2946 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 2028 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2946 SdHoareTripleChecker+Valid, 2352 SdHoareTripleChecker+Invalid, 2031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:08:45,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2946 Valid, 2352 Invalid, 2031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2028 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:08:45,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2022-12-14 10:08:45,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 632. [2022-12-14 10:08:45,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 610 states have (on average 1.3032786885245902) internal successors, (795), 631 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:45,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 795 transitions. [2022-12-14 10:08:45,738 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 795 transitions. Word has length 115 [2022-12-14 10:08:45,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:45,739 INFO L495 AbstractCegarLoop]: Abstraction has 632 states and 795 transitions. [2022-12-14 10:08:45,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:45,739 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 795 transitions. [2022-12-14 10:08:45,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:08:45,739 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:45,739 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] [2022-12-14 10:08:45,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-12-14 10:08:45,740 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:08:45,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:45,740 INFO L85 PathProgramCache]: Analyzing trace with hash 175977486, now seen corresponding path program 1 times [2022-12-14 10:08:45,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:45,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473272550] [2022-12-14 10:08:45,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:45,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:46,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:46,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:46,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473272550] [2022-12-14 10:08:46,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473272550] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:08:46,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:08:46,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 10:08:46,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841928162] [2022-12-14 10:08:46,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:08:46,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 10:08:46,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:46,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 10:08:46,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-14 10:08:46,038 INFO L87 Difference]: Start difference. First operand 632 states and 795 transitions. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:49,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:08:49,934 INFO L93 Difference]: Finished difference Result 1311 states and 1647 transitions. [2022-12-14 10:08:49,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 10:08:49,935 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:08:49,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:08:49,936 INFO L225 Difference]: With dead ends: 1311 [2022-12-14 10:08:49,936 INFO L226 Difference]: Without dead ends: 1306 [2022-12-14 10:08:49,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-12-14 10:08:49,937 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 5238 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 2318 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5238 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 2539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 2318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:08:49,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5238 Valid, 2583 Invalid, 2539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 2318 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 10:08:49,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2022-12-14 10:08:50,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 636. [2022-12-14 10:08:50,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 614 states have (on average 1.3013029315960911) internal successors, (799), 635 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:50,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 799 transitions. [2022-12-14 10:08:50,307 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 799 transitions. Word has length 115 [2022-12-14 10:08:50,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:50,307 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 799 transitions. [2022-12-14 10:08:50,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:50,308 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 799 transitions. [2022-12-14 10:08:50,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:08:50,308 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:50,308 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] [2022-12-14 10:08:50,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-12-14 10:08:50,308 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:08:50,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:50,309 INFO L85 PathProgramCache]: Analyzing trace with hash 2089768037, now seen corresponding path program 1 times [2022-12-14 10:08:50,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:50,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439090510] [2022-12-14 10:08:50,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:50,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:50,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:50,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:50,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439090510] [2022-12-14 10:08:50,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439090510] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:08:50,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:08:50,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 10:08:50,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117077496] [2022-12-14 10:08:50,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:08:50,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 10:08:50,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:50,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 10:08:50,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-14 10:08:50,615 INFO L87 Difference]: Start difference. First operand 636 states and 799 transitions. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:54,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:08:54,692 INFO L93 Difference]: Finished difference Result 1368 states and 1725 transitions. [2022-12-14 10:08:54,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 10:08:54,692 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:08:54,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:08:54,693 INFO L225 Difference]: With dead ends: 1368 [2022-12-14 10:08:54,693 INFO L226 Difference]: Without dead ends: 1309 [2022-12-14 10:08:54,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-12-14 10:08:54,694 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 5623 mSDsluCounter, 2422 mSDsCounter, 0 mSdLazyCounter, 2679 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5623 SdHoareTripleChecker+Valid, 3002 SdHoareTripleChecker+Invalid, 2907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 2679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:08:54,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5623 Valid, 3002 Invalid, 2907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 2679 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 10:08:54,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2022-12-14 10:08:55,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 640. [2022-12-14 10:08:55,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 618 states have (on average 1.2993527508090614) internal successors, (803), 639 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:55,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 803 transitions. [2022-12-14 10:08:55,074 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 803 transitions. Word has length 115 [2022-12-14 10:08:55,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:55,074 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 803 transitions. [2022-12-14 10:08:55,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:55,075 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 803 transitions. [2022-12-14 10:08:55,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:08:55,075 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:55,075 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] [2022-12-14 10:08:55,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-12-14 10:08:55,075 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:08:55,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:55,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1618113728, now seen corresponding path program 1 times [2022-12-14 10:08:55,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:55,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301326828] [2022-12-14 10:08:55,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:55,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:55,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:55,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:55,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301326828] [2022-12-14 10:08:55,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301326828] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:08:55,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:08:55,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:08:55,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960222109] [2022-12-14 10:08:55,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:08:55,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:08:55,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:55,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:08:55,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:08:55,255 INFO L87 Difference]: Start difference. First operand 640 states and 803 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:57,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:08:57,358 INFO L93 Difference]: Finished difference Result 1077 states and 1345 transitions. [2022-12-14 10:08:57,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:08:57,359 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:08:57,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:08:57,359 INFO L225 Difference]: With dead ends: 1077 [2022-12-14 10:08:57,359 INFO L226 Difference]: Without dead ends: 1020 [2022-12-14 10:08:57,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:08:57,360 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 3065 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3065 SdHoareTripleChecker+Valid, 2238 SdHoareTripleChecker+Invalid, 1887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:08:57,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3065 Valid, 2238 Invalid, 1887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:08:57,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2022-12-14 10:08:57,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 640. [2022-12-14 10:08:57,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 618 states have (on average 1.2977346278317152) internal successors, (802), 639 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:57,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 802 transitions. [2022-12-14 10:08:57,744 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 802 transitions. Word has length 115 [2022-12-14 10:08:57,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:57,744 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 802 transitions. [2022-12-14 10:08:57,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:08:57,745 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 802 transitions. [2022-12-14 10:08:57,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:08:57,745 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:57,745 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] [2022-12-14 10:08:57,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-12-14 10:08:57,745 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:08:57,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:57,746 INFO L85 PathProgramCache]: Analyzing trace with hash -627761618, now seen corresponding path program 1 times [2022-12-14 10:08:57,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:57,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037520918] [2022-12-14 10:08:57,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:57,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:57,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:57,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:57,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037520918] [2022-12-14 10:08:57,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037520918] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:08:57,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:08:57,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:08:57,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434151433] [2022-12-14 10:08:57,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:08:57,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:08:57,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:57,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:08:57,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:08:57,943 INFO L87 Difference]: Start difference. First operand 640 states and 802 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:00,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:09:00,053 INFO L93 Difference]: Finished difference Result 1025 states and 1274 transitions. [2022-12-14 10:09:00,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:09:00,054 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:09:00,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:09:00,054 INFO L225 Difference]: With dead ends: 1025 [2022-12-14 10:09:00,055 INFO L226 Difference]: Without dead ends: 1020 [2022-12-14 10:09:00,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:09:00,055 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 3054 mSDsluCounter, 1707 mSDsCounter, 0 mSdLazyCounter, 1877 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3054 SdHoareTripleChecker+Valid, 2266 SdHoareTripleChecker+Invalid, 1881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:09:00,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3054 Valid, 2266 Invalid, 1881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1877 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 10:09:00,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2022-12-14 10:09:00,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 640. [2022-12-14 10:09:00,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 618 states have (on average 1.296116504854369) internal successors, (801), 639 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:00,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 801 transitions. [2022-12-14 10:09:00,440 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 801 transitions. Word has length 115 [2022-12-14 10:09:00,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:09:00,441 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 801 transitions. [2022-12-14 10:09:00,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:00,441 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 801 transitions. [2022-12-14 10:09:00,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:09:00,441 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:09:00,441 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] [2022-12-14 10:09:00,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-12-14 10:09:00,442 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:09:00,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:09:00,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1284435484, now seen corresponding path program 1 times [2022-12-14 10:09:00,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:09:00,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357998812] [2022-12-14 10:09:00,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:09:00,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:09:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:09:00,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:09:00,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:09:00,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357998812] [2022-12-14 10:09:00,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357998812] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:09:00,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:09:00,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 10:09:00,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880708869] [2022-12-14 10:09:00,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:09:00,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 10:09:00,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:09:00,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 10:09:00,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-14 10:09:00,736 INFO L87 Difference]: Start difference. First operand 640 states and 801 transitions. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:04,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:09:04,873 INFO L93 Difference]: Finished difference Result 1405 states and 1769 transitions. [2022-12-14 10:09:04,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 10:09:04,873 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:09:04,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:09:04,874 INFO L225 Difference]: With dead ends: 1405 [2022-12-14 10:09:04,874 INFO L226 Difference]: Without dead ends: 1388 [2022-12-14 10:09:04,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-12-14 10:09:04,875 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 5166 mSDsluCounter, 2303 mSDsCounter, 0 mSdLazyCounter, 2523 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5166 SdHoareTripleChecker+Valid, 2998 SdHoareTripleChecker+Invalid, 2725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 2523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:09:04,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5166 Valid, 2998 Invalid, 2725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 2523 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 10:09:04,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2022-12-14 10:09:05,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 644. [2022-12-14 10:09:05,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 622 states have (on average 1.2942122186495177) internal successors, (805), 643 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:05,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 805 transitions. [2022-12-14 10:09:05,289 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 805 transitions. Word has length 115 [2022-12-14 10:09:05,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:09:05,289 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 805 transitions. [2022-12-14 10:09:05,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:05,289 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 805 transitions. [2022-12-14 10:09:05,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:09:05,290 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:09:05,290 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] [2022-12-14 10:09:05,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-12-14 10:09:05,290 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:09:05,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:09:05,290 INFO L85 PathProgramCache]: Analyzing trace with hash -117684544, now seen corresponding path program 1 times [2022-12-14 10:09:05,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:09:05,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402726803] [2022-12-14 10:09:05,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:09:05,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:09:05,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:09:05,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:09:05,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:09:05,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402726803] [2022-12-14 10:09:05,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402726803] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:09:05,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:09:05,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:09:05,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887362149] [2022-12-14 10:09:05,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:09:05,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:09:05,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:09:05,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:09:05,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:09:05,474 INFO L87 Difference]: Start difference. First operand 644 states and 805 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:07,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:09:07,643 INFO L93 Difference]: Finished difference Result 1083 states and 1349 transitions. [2022-12-14 10:09:07,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:09:07,644 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:09:07,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:09:07,645 INFO L225 Difference]: With dead ends: 1083 [2022-12-14 10:09:07,645 INFO L226 Difference]: Without dead ends: 1024 [2022-12-14 10:09:07,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:09:07,645 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 3058 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3058 SdHoareTripleChecker+Valid, 2242 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:09:07,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3058 Valid, 2242 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1873 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 10:09:07,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-12-14 10:09:08,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 644. [2022-12-14 10:09:08,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 622 states have (on average 1.292604501607717) internal successors, (804), 643 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:08,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 804 transitions. [2022-12-14 10:09:08,056 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 804 transitions. Word has length 115 [2022-12-14 10:09:08,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:09:08,056 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 804 transitions. [2022-12-14 10:09:08,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:08,056 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 804 transitions. [2022-12-14 10:09:08,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:09:08,057 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:09:08,057 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] [2022-12-14 10:09:08,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-12-14 10:09:08,057 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:09:08,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:09:08,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1382898193, now seen corresponding path program 1 times [2022-12-14 10:09:08,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:09:08,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76191540] [2022-12-14 10:09:08,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:09:08,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:09:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:09:08,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:09:08,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:09:08,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76191540] [2022-12-14 10:09:08,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76191540] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:09:08,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:09:08,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 10:09:08,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107686976] [2022-12-14 10:09:08,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:09:08,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 10:09:08,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:09:08,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 10:09:08,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-14 10:09:08,492 INFO L87 Difference]: Start difference. First operand 644 states and 804 transitions. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:12,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:09:12,776 INFO L93 Difference]: Finished difference Result 1315 states and 1646 transitions. [2022-12-14 10:09:12,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 10:09:12,776 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:09:12,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:09:12,777 INFO L225 Difference]: With dead ends: 1315 [2022-12-14 10:09:12,777 INFO L226 Difference]: Without dead ends: 1310 [2022-12-14 10:09:12,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-12-14 10:09:12,778 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 5626 mSDsluCounter, 2419 mSDsCounter, 0 mSdLazyCounter, 2654 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5626 SdHoareTripleChecker+Valid, 3000 SdHoareTripleChecker+Invalid, 2881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 2654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:09:12,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5626 Valid, 3000 Invalid, 2881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 2654 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 10:09:12,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2022-12-14 10:09:13,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 648. [2022-12-14 10:09:13,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 626 states have (on average 1.29073482428115) internal successors, (808), 647 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:13,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 808 transitions. [2022-12-14 10:09:13,199 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 808 transitions. Word has length 115 [2022-12-14 10:09:13,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:09:13,199 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 808 transitions. [2022-12-14 10:09:13,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:13,199 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 808 transitions. [2022-12-14 10:09:13,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:09:13,200 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:09:13,200 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] [2022-12-14 10:09:13,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-12-14 10:09:13,200 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:09:13,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:09:13,200 INFO L85 PathProgramCache]: Analyzing trace with hash 2001833042, now seen corresponding path program 1 times [2022-12-14 10:09:13,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:09:13,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972088071] [2022-12-14 10:09:13,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:09:13,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:09:13,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:09:13,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:09:13,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:09:13,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972088071] [2022-12-14 10:09:13,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972088071] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:09:13,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:09:13,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:09:13,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537708209] [2022-12-14 10:09:13,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:09:13,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:09:13,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:09:13,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:09:13,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:09:13,406 INFO L87 Difference]: Start difference. First operand 648 states and 808 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:15,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:09:15,527 INFO L93 Difference]: Finished difference Result 1081 states and 1345 transitions. [2022-12-14 10:09:15,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:09:15,527 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:09:15,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:09:15,528 INFO L225 Difference]: With dead ends: 1081 [2022-12-14 10:09:15,528 INFO L226 Difference]: Without dead ends: 1024 [2022-12-14 10:09:15,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:09:15,529 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 2955 mSDsluCounter, 1750 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2955 SdHoareTripleChecker+Valid, 2320 SdHoareTripleChecker+Invalid, 1990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:09:15,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2955 Valid, 2320 Invalid, 1990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1987 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 10:09:15,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-12-14 10:09:15,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 648. [2022-12-14 10:09:15,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 626 states have (on average 1.2891373801916932) internal successors, (807), 647 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:15,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 807 transitions. [2022-12-14 10:09:15,959 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 807 transitions. Word has length 115 [2022-12-14 10:09:15,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:09:15,959 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 807 transitions. [2022-12-14 10:09:15,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:15,959 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 807 transitions. [2022-12-14 10:09:15,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:09:15,960 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:09:15,960 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] [2022-12-14 10:09:15,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-12-14 10:09:15,960 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:09:15,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:09:15,960 INFO L85 PathProgramCache]: Analyzing trace with hash -696627684, now seen corresponding path program 1 times [2022-12-14 10:09:15,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:09:15,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820608617] [2022-12-14 10:09:15,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:09:15,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:09:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:09:16,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:09:16,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:09:16,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820608617] [2022-12-14 10:09:16,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820608617] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:09:16,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:09:16,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:09:16,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373880400] [2022-12-14 10:09:16,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:09:16,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:09:16,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:09:16,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:09:16,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:09:16,128 INFO L87 Difference]: Start difference. First operand 648 states and 807 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:18,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:09:18,350 INFO L93 Difference]: Finished difference Result 1083 states and 1346 transitions. [2022-12-14 10:09:18,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:09:18,351 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:09:18,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:09:18,352 INFO L225 Difference]: With dead ends: 1083 [2022-12-14 10:09:18,352 INFO L226 Difference]: Without dead ends: 1024 [2022-12-14 10:09:18,352 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 [2022-12-14 10:09:18,352 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 2060 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 1953 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2060 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 1957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:09:18,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2060 Valid, 2310 Invalid, 1957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1953 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:09:18,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-12-14 10:09:18,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 648. [2022-12-14 10:09:18,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 626 states have (on average 1.2875399361022364) internal successors, (806), 647 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:18,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 806 transitions. [2022-12-14 10:09:18,779 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 806 transitions. Word has length 115 [2022-12-14 10:09:18,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:09:18,779 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 806 transitions. [2022-12-14 10:09:18,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:18,779 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 806 transitions. [2022-12-14 10:09:18,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:09:18,780 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:09:18,780 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] [2022-12-14 10:09:18,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-12-14 10:09:18,780 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:09:18,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:09:18,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1345321760, now seen corresponding path program 1 times [2022-12-14 10:09:18,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:09:18,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200317037] [2022-12-14 10:09:18,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:09:18,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:09:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:09:18,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:09:18,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:09:18,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200317037] [2022-12-14 10:09:18,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200317037] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:09:18,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:09:18,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:09:18,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215009293] [2022-12-14 10:09:18,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:09:18,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:09:18,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:09:18,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:09:18,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:09:18,958 INFO L87 Difference]: Start difference. First operand 648 states and 806 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:21,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:09:21,474 INFO L93 Difference]: Finished difference Result 1083 states and 1344 transitions. [2022-12-14 10:09:21,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:09:21,474 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:09:21,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:09:21,475 INFO L225 Difference]: With dead ends: 1083 [2022-12-14 10:09:21,475 INFO L226 Difference]: Without dead ends: 1024 [2022-12-14 10:09:21,476 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 [2022-12-14 10:09:21,476 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 1934 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 2087 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1934 SdHoareTripleChecker+Valid, 2624 SdHoareTripleChecker+Invalid, 2090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:09:21,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1934 Valid, 2624 Invalid, 2090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2087 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:09:21,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-12-14 10:09:21,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 648. [2022-12-14 10:09:21,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 626 states have (on average 1.2859424920127795) internal successors, (805), 647 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:21,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 805 transitions. [2022-12-14 10:09:21,908 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 805 transitions. Word has length 115 [2022-12-14 10:09:21,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:09:21,908 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 805 transitions. [2022-12-14 10:09:21,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:21,908 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 805 transitions. [2022-12-14 10:09:21,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:09:21,908 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:09:21,908 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] [2022-12-14 10:09:21,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-12-14 10:09:21,909 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:09:21,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:09:21,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1684766528, now seen corresponding path program 1 times [2022-12-14 10:09:21,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:09:21,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050223688] [2022-12-14 10:09:21,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:09:21,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:09:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:09:22,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:09:22,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:09:22,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050223688] [2022-12-14 10:09:22,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050223688] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:09:22,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:09:22,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:09:22,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856361587] [2022-12-14 10:09:22,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:09:22,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:09:22,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:09:22,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:09:22,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:09:22,074 INFO L87 Difference]: Start difference. First operand 648 states and 805 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:24,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:09:24,408 INFO L93 Difference]: Finished difference Result 1029 states and 1271 transitions. [2022-12-14 10:09:24,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:09:24,409 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:09:24,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:09:24,410 INFO L225 Difference]: With dead ends: 1029 [2022-12-14 10:09:24,410 INFO L226 Difference]: Without dead ends: 1024 [2022-12-14 10:09:24,410 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 [2022-12-14 10:09:24,410 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 2003 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 2065 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2003 SdHoareTripleChecker+Valid, 2398 SdHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:09:24,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2003 Valid, 2398 Invalid, 2068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2065 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 10:09:24,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-12-14 10:09:24,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 648. [2022-12-14 10:09:24,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 626 states have (on average 1.2843450479233227) internal successors, (804), 647 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:24,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 804 transitions. [2022-12-14 10:09:24,850 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 804 transitions. Word has length 115 [2022-12-14 10:09:24,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:09:24,850 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 804 transitions. [2022-12-14 10:09:24,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:24,851 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 804 transitions. [2022-12-14 10:09:24,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:09:24,851 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:09:24,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:09:24,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-12-14 10:09:24,851 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:09:24,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:09:24,852 INFO L85 PathProgramCache]: Analyzing trace with hash -824866432, now seen corresponding path program 1 times [2022-12-14 10:09:24,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:09:24,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327109717] [2022-12-14 10:09:24,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:09:24,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:09:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:09:25,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:09:25,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:09:25,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327109717] [2022-12-14 10:09:25,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327109717] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:09:25,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:09:25,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:09:25,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961037621] [2022-12-14 10:09:25,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:09:25,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:09:25,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:09:25,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:09:25,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:09:25,052 INFO L87 Difference]: Start difference. First operand 648 states and 804 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:27,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:09:27,830 INFO L93 Difference]: Finished difference Result 1083 states and 1341 transitions. [2022-12-14 10:09:27,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:09:27,831 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:09:27,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:09:27,831 INFO L225 Difference]: With dead ends: 1083 [2022-12-14 10:09:27,831 INFO L226 Difference]: Without dead ends: 1024 [2022-12-14 10:09:27,832 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 [2022-12-14 10:09:27,832 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 2054 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 1931 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2054 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:09:27,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2054 Valid, 2310 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1931 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:09:27,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-12-14 10:09:28,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 648. [2022-12-14 10:09:28,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 626 states have (on average 1.2827476038338659) internal successors, (803), 647 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:28,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 803 transitions. [2022-12-14 10:09:28,282 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 803 transitions. Word has length 115 [2022-12-14 10:09:28,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:09:28,282 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 803 transitions. [2022-12-14 10:09:28,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:28,282 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 803 transitions. [2022-12-14 10:09:28,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:09:28,283 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:09:28,283 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] [2022-12-14 10:09:28,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-12-14 10:09:28,283 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)] === [2022-12-14 10:09:28,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:09:28,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1114234469, now seen corresponding path program 1 times [2022-12-14 10:09:28,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:09:28,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546062095] [2022-12-14 10:09:28,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:09:28,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:09:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:09:28,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:09:28,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:09:28,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546062095] [2022-12-14 10:09:28,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546062095] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:09:28,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:09:28,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:09:28,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103915714] [2022-12-14 10:09:28,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:09:28,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:09:28,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:09:28,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:09:28,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:09:28,473 INFO L87 Difference]: Start difference. First operand 648 states and 803 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:30,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:09:30,914 INFO L93 Difference]: Finished difference Result 1081 states and 1337 transitions. [2022-12-14 10:09:30,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:09:30,914 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:09:30,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:09:30,915 INFO L225 Difference]: With dead ends: 1081 [2022-12-14 10:09:30,915 INFO L226 Difference]: Without dead ends: 1024 [2022-12-14 10:09:30,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:09:30,916 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 2922 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 1952 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2922 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 1955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:09:30,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2922 Valid, 2356 Invalid, 1955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1952 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:09:30,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-12-14 10:09:31,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 648. [2022-12-14 10:09:31,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 626 states have (on average 1.281150159744409) internal successors, (802), 647 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:31,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 802 transitions. [2022-12-14 10:09:31,429 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 802 transitions. Word has length 115 [2022-12-14 10:09:31,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:09:31,429 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 802 transitions. [2022-12-14 10:09:31,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:31,429 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 802 transitions. [2022-12-14 10:09:31,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:09:31,430 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:09:31,430 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] [2022-12-14 10:09:31,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-12-14 10:09:31,430 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:09:31,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:09:31,430 INFO L85 PathProgramCache]: Analyzing trace with hash 540222830, now seen corresponding path program 1 times [2022-12-14 10:09:31,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:09:31,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126644937] [2022-12-14 10:09:31,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:09:31,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:09:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:09:31,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:09:31,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:09:31,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126644937] [2022-12-14 10:09:31,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126644937] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:09:31,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:09:31,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:09:31,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969771700] [2022-12-14 10:09:31,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:09:31,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:09:31,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:09:31,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:09:31,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:09:31,609 INFO L87 Difference]: Start difference. First operand 648 states and 802 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:33,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:09:33,906 INFO L93 Difference]: Finished difference Result 1081 states and 1336 transitions. [2022-12-14 10:09:33,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:09:33,906 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:09:33,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:09:33,907 INFO L225 Difference]: With dead ends: 1081 [2022-12-14 10:09:33,907 INFO L226 Difference]: Without dead ends: 1024 [2022-12-14 10:09:33,907 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 [2022-12-14 10:09:33,907 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 1864 mSDsluCounter, 1959 mSDsCounter, 0 mSdLazyCounter, 2071 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1864 SdHoareTripleChecker+Valid, 2569 SdHoareTripleChecker+Invalid, 2075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:09:33,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1864 Valid, 2569 Invalid, 2075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2071 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:09:33,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-12-14 10:09:34,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 648. [2022-12-14 10:09:34,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 626 states have (on average 1.279552715654952) internal successors, (801), 647 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:34,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 801 transitions. [2022-12-14 10:09:34,348 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 801 transitions. Word has length 115 [2022-12-14 10:09:34,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:09:34,348 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 801 transitions. [2022-12-14 10:09:34,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:34,348 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 801 transitions. [2022-12-14 10:09:34,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:09:34,349 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:09:34,349 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] [2022-12-14 10:09:34,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-12-14 10:09:34,349 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:09:34,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:09:34,349 INFO L85 PathProgramCache]: Analyzing trace with hash -383544911, now seen corresponding path program 1 times [2022-12-14 10:09:34,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:09:34,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517676716] [2022-12-14 10:09:34,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:09:34,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:09:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:09:34,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:09:34,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:09:34,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517676716] [2022-12-14 10:09:34,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517676716] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:09:34,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:09:34,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:09:34,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192664711] [2022-12-14 10:09:34,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:09:34,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:09:34,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:09:34,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:09:34,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:09:34,528 INFO L87 Difference]: Start difference. First operand 648 states and 801 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:37,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:09:37,186 INFO L93 Difference]: Finished difference Result 1086 states and 1339 transitions. [2022-12-14 10:09:37,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:09:37,187 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:09:37,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:09:37,188 INFO L225 Difference]: With dead ends: 1086 [2022-12-14 10:09:37,188 INFO L226 Difference]: Without dead ends: 1024 [2022-12-14 10:09:37,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:09:37,188 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 3036 mSDsluCounter, 1697 mSDsCounter, 0 mSdLazyCounter, 1812 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3036 SdHoareTripleChecker+Valid, 2253 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:09:37,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3036 Valid, 2253 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1812 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:09:37,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-12-14 10:09:37,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 648. [2022-12-14 10:09:37,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 626 states have (on average 1.2779552715654952) internal successors, (800), 647 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:37,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 800 transitions. [2022-12-14 10:09:37,635 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 800 transitions. Word has length 115 [2022-12-14 10:09:37,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:09:37,635 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 800 transitions. [2022-12-14 10:09:37,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:37,635 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 800 transitions. [2022-12-14 10:09:37,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:09:37,636 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:09:37,636 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] [2022-12-14 10:09:37,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-12-14 10:09:37,636 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:09:37,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:09:37,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1528652191, now seen corresponding path program 1 times [2022-12-14 10:09:37,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:09:37,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564514207] [2022-12-14 10:09:37,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:09:37,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:09:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:09:37,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:09:37,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:09:37,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564514207] [2022-12-14 10:09:37,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564514207] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:09:37,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:09:37,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:09:37,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986556113] [2022-12-14 10:09:37,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:09:37,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:09:37,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:09:37,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:09:37,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:09:37,827 INFO L87 Difference]: Start difference. First operand 648 states and 800 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:40,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:09:40,504 INFO L93 Difference]: Finished difference Result 1142 states and 1416 transitions. [2022-12-14 10:09:40,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:09:40,504 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:09:40,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:09:40,505 INFO L225 Difference]: With dead ends: 1142 [2022-12-14 10:09:40,505 INFO L226 Difference]: Without dead ends: 1068 [2022-12-14 10:09:40,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:09:40,506 INFO L413 NwaCegarLoop]: 639 mSDtfsCounter, 2842 mSDsluCounter, 1989 mSDsCounter, 0 mSdLazyCounter, 2008 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2842 SdHoareTripleChecker+Valid, 2628 SdHoareTripleChecker+Invalid, 2012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:09:40,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2842 Valid, 2628 Invalid, 2012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2008 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 10:09:40,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-12-14 10:09:40,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 648. [2022-12-14 10:09:40,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 626 states have (on average 1.2763578274760383) internal successors, (799), 647 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:40,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 799 transitions. [2022-12-14 10:09:40,954 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 799 transitions. Word has length 115 [2022-12-14 10:09:40,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:09:40,954 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 799 transitions. [2022-12-14 10:09:40,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:40,954 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 799 transitions. [2022-12-14 10:09:40,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:09:40,955 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:09:40,955 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] [2022-12-14 10:09:40,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-12-14 10:09:40,955 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:09:40,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:09:40,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1909035737, now seen corresponding path program 1 times [2022-12-14 10:09:40,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:09:40,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131473766] [2022-12-14 10:09:40,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:09:40,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:09:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:09:41,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:09:41,275 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:09:41,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131473766] [2022-12-14 10:09:41,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131473766] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:09:41,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:09:41,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 10:09:41,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812660646] [2022-12-14 10:09:41,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:09:41,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 10:09:41,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:09:41,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 10:09:41,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-14 10:09:41,276 INFO L87 Difference]: Start difference. First operand 648 states and 799 transitions. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:46,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:09:46,336 INFO L93 Difference]: Finished difference Result 1560 states and 1954 transitions. [2022-12-14 10:09:46,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 10:09:46,337 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:09:46,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:09:46,338 INFO L225 Difference]: With dead ends: 1560 [2022-12-14 10:09:46,338 INFO L226 Difference]: Without dead ends: 1463 [2022-12-14 10:09:46,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-12-14 10:09:46,339 INFO L413 NwaCegarLoop]: 784 mSDtfsCounter, 5225 mSDsluCounter, 3214 mSDsCounter, 0 mSdLazyCounter, 3252 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5225 SdHoareTripleChecker+Valid, 3998 SdHoareTripleChecker+Invalid, 3440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 3252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:09:46,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5225 Valid, 3998 Invalid, 3440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 3252 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 10:09:46,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2022-12-14 10:09:46,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 652. [2022-12-14 10:09:46,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 630 states have (on average 1.2746031746031745) internal successors, (803), 651 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:46,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 803 transitions. [2022-12-14 10:09:46,803 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 803 transitions. Word has length 115 [2022-12-14 10:09:46,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:09:46,803 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 803 transitions. [2022-12-14 10:09:46,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:46,803 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 803 transitions. [2022-12-14 10:09:46,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:09:46,804 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:09:46,804 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] [2022-12-14 10:09:46,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-12-14 10:09:46,804 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:09:46,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:09:46,805 INFO L85 PathProgramCache]: Analyzing trace with hash 121393216, now seen corresponding path program 1 times [2022-12-14 10:09:46,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:09:46,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267139145] [2022-12-14 10:09:46,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:09:46,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:09:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:09:46,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:09:46,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:09:46,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267139145] [2022-12-14 10:09:46,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267139145] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:09:46,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:09:46,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:09:46,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765764475] [2022-12-14 10:09:46,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:09:46,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:09:46,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:09:46,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:09:46,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:09:46,988 INFO L87 Difference]: Start difference. First operand 652 states and 803 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:49,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:09:49,460 INFO L93 Difference]: Finished difference Result 1087 states and 1338 transitions. [2022-12-14 10:09:49,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:09:49,460 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:09:49,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:09:49,461 INFO L225 Difference]: With dead ends: 1087 [2022-12-14 10:09:49,461 INFO L226 Difference]: Without dead ends: 1028 [2022-12-14 10:09:49,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:09:49,462 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 2896 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 1954 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2896 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 1957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:09:49,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2896 Valid, 2356 Invalid, 1957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1954 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 10:09:49,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2022-12-14 10:09:49,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 652. [2022-12-14 10:09:49,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 630 states have (on average 1.273015873015873) internal successors, (802), 651 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:49,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 802 transitions. [2022-12-14 10:09:49,926 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 802 transitions. Word has length 115 [2022-12-14 10:09:49,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:09:49,926 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 802 transitions. [2022-12-14 10:09:49,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:49,926 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 802 transitions. [2022-12-14 10:09:49,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:09:49,927 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:09:49,927 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] [2022-12-14 10:09:49,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-12-14 10:09:49,927 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:09:49,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:09:49,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1144564190, now seen corresponding path program 1 times [2022-12-14 10:09:49,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:09:49,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807145881] [2022-12-14 10:09:49,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:09:49,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:09:49,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:09:50,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:09:50,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:09:50,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807145881] [2022-12-14 10:09:50,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807145881] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:09:50,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:09:50,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:09:50,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035440001] [2022-12-14 10:09:50,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:09:50,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:09:50,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:09:50,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:09:50,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:09:50,097 INFO L87 Difference]: Start difference. First operand 652 states and 802 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:52,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:09:52,398 INFO L93 Difference]: Finished difference Result 1090 states and 1340 transitions. [2022-12-14 10:09:52,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:09:52,398 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:09:52,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:09:52,399 INFO L225 Difference]: With dead ends: 1090 [2022-12-14 10:09:52,399 INFO L226 Difference]: Without dead ends: 1028 [2022-12-14 10:09:52,399 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 [2022-12-14 10:09:52,400 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 1857 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 2241 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1857 SdHoareTripleChecker+Valid, 2856 SdHoareTripleChecker+Invalid, 2245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:09:52,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1857 Valid, 2856 Invalid, 2245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2241 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 10:09:52,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2022-12-14 10:09:52,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 652. [2022-12-14 10:09:52,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 630 states have (on average 1.2714285714285714) internal successors, (801), 651 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:52,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 801 transitions. [2022-12-14 10:09:52,865 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 801 transitions. Word has length 115 [2022-12-14 10:09:52,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:09:52,865 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 801 transitions. [2022-12-14 10:09:52,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:52,865 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 801 transitions. [2022-12-14 10:09:52,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:09:52,866 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:09:52,866 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] [2022-12-14 10:09:52,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-12-14 10:09:52,866 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:09:52,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:09:52,866 INFO L85 PathProgramCache]: Analyzing trace with hash -389427615, now seen corresponding path program 1 times [2022-12-14 10:09:52,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:09:52,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558794605] [2022-12-14 10:09:52,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:09:52,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:09:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:09:53,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:09:53,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:09:53,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558794605] [2022-12-14 10:09:53,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558794605] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:09:53,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:09:53,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:09:53,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473273413] [2022-12-14 10:09:53,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:09:53,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:09:53,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:09:53,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:09:53,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:09:53,043 INFO L87 Difference]: Start difference. First operand 652 states and 801 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:55,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:09:55,432 INFO L93 Difference]: Finished difference Result 1090 states and 1338 transitions. [2022-12-14 10:09:55,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:09:55,432 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:09:55,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:09:55,433 INFO L225 Difference]: With dead ends: 1090 [2022-12-14 10:09:55,433 INFO L226 Difference]: Without dead ends: 1028 [2022-12-14 10:09:55,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:09:55,434 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 2984 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 1815 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2984 SdHoareTripleChecker+Valid, 2305 SdHoareTripleChecker+Invalid, 1819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:09:55,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2984 Valid, 2305 Invalid, 1819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1815 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 10:09:55,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2022-12-14 10:09:55,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 652. [2022-12-14 10:09:55,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 630 states have (on average 1.2698412698412698) internal successors, (800), 651 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:55,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 800 transitions. [2022-12-14 10:09:55,901 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 800 transitions. Word has length 115 [2022-12-14 10:09:55,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:09:55,902 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 800 transitions. [2022-12-14 10:09:55,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:55,902 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 800 transitions. [2022-12-14 10:09:55,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:09:55,902 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:09:55,902 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] [2022-12-14 10:09:55,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-12-14 10:09:55,903 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:09:55,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:09:55,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1522769487, now seen corresponding path program 1 times [2022-12-14 10:09:55,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:09:55,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648972710] [2022-12-14 10:09:55,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:09:55,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:09:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:09:56,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:09:56,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:09:56,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648972710] [2022-12-14 10:09:56,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648972710] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:09:56,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:09:56,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:09:56,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144927967] [2022-12-14 10:09:56,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:09:56,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:09:56,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:09:56,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:09:56,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:09:56,077 INFO L87 Difference]: Start difference. First operand 652 states and 800 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:58,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:09:58,768 INFO L93 Difference]: Finished difference Result 1146 states and 1415 transitions. [2022-12-14 10:09:58,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:09:58,769 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:09:58,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:09:58,770 INFO L225 Difference]: With dead ends: 1146 [2022-12-14 10:09:58,770 INFO L226 Difference]: Without dead ends: 1072 [2022-12-14 10:09:58,770 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 [2022-12-14 10:09:58,770 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 1902 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 2060 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1902 SdHoareTripleChecker+Valid, 2651 SdHoareTripleChecker+Invalid, 2064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:09:58,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1902 Valid, 2651 Invalid, 2064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2060 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 10:09:58,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2022-12-14 10:09:59,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 652. [2022-12-14 10:09:59,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 630 states have (on average 1.2682539682539682) internal successors, (799), 651 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:59,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 799 transitions. [2022-12-14 10:09:59,424 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 799 transitions. Word has length 115 [2022-12-14 10:09:59,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:09:59,424 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 799 transitions. [2022-12-14 10:09:59,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:09:59,424 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 799 transitions. [2022-12-14 10:09:59,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:09:59,425 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:09:59,425 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] [2022-12-14 10:09:59,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-12-14 10:09:59,426 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:09:59,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:09:59,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1257578919, now seen corresponding path program 1 times [2022-12-14 10:09:59,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:09:59,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129030903] [2022-12-14 10:09:59,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:09:59,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:09:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:09:59,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:09:59,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:09:59,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129030903] [2022-12-14 10:09:59,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129030903] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:09:59,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:09:59,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 10:09:59,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277530142] [2022-12-14 10:09:59,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:09:59,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 10:09:59,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:09:59,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 10:09:59,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-14 10:09:59,917 INFO L87 Difference]: Start difference. First operand 652 states and 799 transitions. Second operand has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:02,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:02,834 INFO L93 Difference]: Finished difference Result 1285 states and 1601 transitions. [2022-12-14 10:10:02,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:10:02,835 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:10:02,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:02,835 INFO L225 Difference]: With dead ends: 1285 [2022-12-14 10:10:02,836 INFO L226 Difference]: Without dead ends: 1214 [2022-12-14 10:10:02,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-12-14 10:10:02,836 INFO L413 NwaCegarLoop]: 1083 mSDtfsCounter, 4441 mSDsluCounter, 4010 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4441 SdHoareTripleChecker+Valid, 5093 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:02,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4441 Valid, 5093 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 10:10:02,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2022-12-14 10:10:03,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 638. [2022-12-14 10:10:03,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.2646103896103895) internal successors, (779), 637 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:03,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 779 transitions. [2022-12-14 10:10:03,317 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 779 transitions. Word has length 115 [2022-12-14 10:10:03,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:03,318 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 779 transitions. [2022-12-14 10:10:03,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.583333333333334) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:03,318 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 779 transitions. [2022-12-14 10:10:03,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:10:03,318 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:03,318 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] [2022-12-14 10:10:03,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-12-14 10:10:03,319 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:10:03,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:03,319 INFO L85 PathProgramCache]: Analyzing trace with hash 391697584, now seen corresponding path program 1 times [2022-12-14 10:10:03,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:03,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098001317] [2022-12-14 10:10:03,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:03,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:03,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:03,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:03,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098001317] [2022-12-14 10:10:03,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098001317] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:03,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:10:03,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:10:03,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846608357] [2022-12-14 10:10:03,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:03,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:10:03,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:03,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:10:03,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:10:03,535 INFO L87 Difference]: Start difference. First operand 638 states and 779 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:06,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:06,130 INFO L93 Difference]: Finished difference Result 1064 states and 1301 transitions. [2022-12-14 10:10:06,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:10:06,131 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:10:06,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:06,131 INFO L225 Difference]: With dead ends: 1064 [2022-12-14 10:10:06,131 INFO L226 Difference]: Without dead ends: 1005 [2022-12-14 10:10:06,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:10:06,132 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 2776 mSDsluCounter, 1769 mSDsCounter, 0 mSdLazyCounter, 1888 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2776 SdHoareTripleChecker+Valid, 2347 SdHoareTripleChecker+Invalid, 1891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:06,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2776 Valid, 2347 Invalid, 1891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1888 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 10:10:06,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2022-12-14 10:10:06,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 638. [2022-12-14 10:10:06,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.2629870129870129) internal successors, (778), 637 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:06,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 778 transitions. [2022-12-14 10:10:06,668 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 778 transitions. Word has length 115 [2022-12-14 10:10:06,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:06,668 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 778 transitions. [2022-12-14 10:10:06,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:06,668 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 778 transitions. [2022-12-14 10:10:06,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:10:06,669 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:06,669 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] [2022-12-14 10:10:06,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-12-14 10:10:06,669 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:10:06,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:06,670 INFO L85 PathProgramCache]: Analyzing trace with hash -873879503, now seen corresponding path program 1 times [2022-12-14 10:10:06,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:06,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906526636] [2022-12-14 10:10:06,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:06,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:07,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:07,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:07,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906526636] [2022-12-14 10:10:07,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906526636] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:07,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:10:07,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 10:10:07,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583116770] [2022-12-14 10:10:07,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:07,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 10:10:07,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:07,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 10:10:07,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-14 10:10:07,067 INFO L87 Difference]: Start difference. First operand 638 states and 778 transitions. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:11,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:11,602 INFO L93 Difference]: Finished difference Result 1353 states and 1674 transitions. [2022-12-14 10:10:11,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 10:10:11,602 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:10:11,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:11,603 INFO L225 Difference]: With dead ends: 1353 [2022-12-14 10:10:11,603 INFO L226 Difference]: Without dead ends: 1291 [2022-12-14 10:10:11,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-12-14 10:10:11,604 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 5446 mSDsluCounter, 1884 mSDsCounter, 0 mSdLazyCounter, 2023 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5446 SdHoareTripleChecker+Valid, 2475 SdHoareTripleChecker+Invalid, 2233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 2023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:11,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5446 Valid, 2475 Invalid, 2233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 2023 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 10:10:11,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2022-12-14 10:10:12,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 642. [2022-12-14 10:10:12,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.261290322580645) internal successors, (782), 641 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:12,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 782 transitions. [2022-12-14 10:10:12,105 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 782 transitions. Word has length 115 [2022-12-14 10:10:12,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:12,105 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 782 transitions. [2022-12-14 10:10:12,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:12,105 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 782 transitions. [2022-12-14 10:10:12,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:10:12,105 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:12,105 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] [2022-12-14 10:10:12,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-12-14 10:10:12,106 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:10:12,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:12,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1677618607, now seen corresponding path program 1 times [2022-12-14 10:10:12,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:12,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231502536] [2022-12-14 10:10:12,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:12,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:12,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:12,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:12,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231502536] [2022-12-14 10:10:12,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231502536] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:12,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:10:12,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:10:12,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327936959] [2022-12-14 10:10:12,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:12,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:10:12,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:12,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:10:12,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:10:12,289 INFO L87 Difference]: Start difference. First operand 642 states and 782 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:14,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:14,820 INFO L93 Difference]: Finished difference Result 1067 states and 1302 transitions. [2022-12-14 10:10:14,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:10:14,821 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:10:14,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:14,821 INFO L225 Difference]: With dead ends: 1067 [2022-12-14 10:10:14,821 INFO L226 Difference]: Without dead ends: 1005 [2022-12-14 10:10:14,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:10:14,822 INFO L413 NwaCegarLoop]: 564 mSDtfsCounter, 2877 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2877 SdHoareTripleChecker+Valid, 2280 SdHoareTripleChecker+Invalid, 1753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:14,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2877 Valid, 2280 Invalid, 1753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 10:10:14,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2022-12-14 10:10:15,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 642. [2022-12-14 10:10:15,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.2596774193548388) internal successors, (781), 641 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:15,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 781 transitions. [2022-12-14 10:10:15,324 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 781 transitions. Word has length 115 [2022-12-14 10:10:15,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:15,324 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 781 transitions. [2022-12-14 10:10:15,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:15,324 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 781 transitions. [2022-12-14 10:10:15,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:10:15,325 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:15,325 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] [2022-12-14 10:10:15,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-12-14 10:10:15,325 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:10:15,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:15,326 INFO L85 PathProgramCache]: Analyzing trace with hash 234578495, now seen corresponding path program 1 times [2022-12-14 10:10:15,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:15,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614451651] [2022-12-14 10:10:15,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:15,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:15,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:15,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:15,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614451651] [2022-12-14 10:10:15,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614451651] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:15,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:10:15,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:10:15,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197195403] [2022-12-14 10:10:15,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:15,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:10:15,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:15,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:10:15,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:10:15,479 INFO L87 Difference]: Start difference. First operand 642 states and 781 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:18,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:18,053 INFO L93 Difference]: Finished difference Result 1140 states and 1397 transitions. [2022-12-14 10:10:18,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:10:18,053 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:10:18,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:18,054 INFO L225 Difference]: With dead ends: 1140 [2022-12-14 10:10:18,054 INFO L226 Difference]: Without dead ends: 1066 [2022-12-14 10:10:18,055 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 [2022-12-14 10:10:18,055 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 2694 mSDsluCounter, 1991 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2694 SdHoareTripleChecker+Valid, 2647 SdHoareTripleChecker+Invalid, 1998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:18,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2694 Valid, 2647 Invalid, 1998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 10:10:18,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2022-12-14 10:10:18,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 642. [2022-12-14 10:10:18,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.2580645161290323) internal successors, (780), 641 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:18,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 780 transitions. [2022-12-14 10:10:18,558 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 780 transitions. Word has length 115 [2022-12-14 10:10:18,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:18,558 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 780 transitions. [2022-12-14 10:10:18,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:18,558 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 780 transitions. [2022-12-14 10:10:18,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:10:18,559 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:18,559 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] [2022-12-14 10:10:18,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-12-14 10:10:18,559 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)] === [2022-12-14 10:10:18,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:18,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1167060921, now seen corresponding path program 1 times [2022-12-14 10:10:18,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:18,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938996486] [2022-12-14 10:10:18,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:18,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:18,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:18,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:18,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938996486] [2022-12-14 10:10:18,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938996486] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:18,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:10:18,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:10:18,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700554859] [2022-12-14 10:10:18,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:18,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:10:18,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:18,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:10:18,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:10:18,740 INFO L87 Difference]: Start difference. First operand 642 states and 780 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:21,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:21,601 INFO L93 Difference]: Finished difference Result 1064 states and 1297 transitions. [2022-12-14 10:10:21,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:10:21,601 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:10:21,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:21,602 INFO L225 Difference]: With dead ends: 1064 [2022-12-14 10:10:21,602 INFO L226 Difference]: Without dead ends: 1005 [2022-12-14 10:10:21,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:10:21,603 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 2737 mSDsluCounter, 1796 mSDsCounter, 0 mSdLazyCounter, 1891 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2737 SdHoareTripleChecker+Valid, 2383 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:21,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2737 Valid, 2383 Invalid, 1894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1891 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 10:10:21,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2022-12-14 10:10:22,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 642. [2022-12-14 10:10:22,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.2564516129032257) internal successors, (779), 641 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:22,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 779 transitions. [2022-12-14 10:10:22,105 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 779 transitions. Word has length 115 [2022-12-14 10:10:22,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:22,105 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 779 transitions. [2022-12-14 10:10:22,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:22,105 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 779 transitions. [2022-12-14 10:10:22,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 10:10:22,105 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:22,105 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] [2022-12-14 10:10:22,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-12-14 10:10:22,106 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:10:22,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:22,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1862212114, now seen corresponding path program 1 times [2022-12-14 10:10:22,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:22,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033336507] [2022-12-14 10:10:22,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:22,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:22,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:22,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:22,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033336507] [2022-12-14 10:10:22,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033336507] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:22,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:10:22,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 10:10:22,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134345824] [2022-12-14 10:10:22,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:22,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 10:10:22,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:22,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 10:10:22,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-14 10:10:22,411 INFO L87 Difference]: Start difference. First operand 642 states and 779 transitions. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:26,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:26,887 INFO L93 Difference]: Finished difference Result 1353 states and 1670 transitions. [2022-12-14 10:10:26,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 10:10:26,891 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-14 10:10:26,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:26,892 INFO L225 Difference]: With dead ends: 1353 [2022-12-14 10:10:26,892 INFO L226 Difference]: Without dead ends: 1291 [2022-12-14 10:10:26,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-12-14 10:10:26,893 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 5332 mSDsluCounter, 2274 mSDsCounter, 0 mSdLazyCounter, 2398 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5332 SdHoareTripleChecker+Valid, 2874 SdHoareTripleChecker+Invalid, 2605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 2398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:26,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5332 Valid, 2874 Invalid, 2605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 2398 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 10:10:26,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2022-12-14 10:10:27,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 646. [2022-12-14 10:10:27,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 624 states have (on average 1.2548076923076923) internal successors, (783), 645 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:27,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 783 transitions. [2022-12-14 10:10:27,405 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 783 transitions. Word has length 115 [2022-12-14 10:10:27,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:27,405 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 783 transitions. [2022-12-14 10:10:27,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:27,405 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 783 transitions. [2022-12-14 10:10:27,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-14 10:10:27,406 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:27,406 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] [2022-12-14 10:10:27,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-12-14 10:10:27,406 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:10:27,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:27,407 INFO L85 PathProgramCache]: Analyzing trace with hash 894167915, now seen corresponding path program 1 times [2022-12-14 10:10:27,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:27,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196055733] [2022-12-14 10:10:27,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:27,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:27,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:27,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:27,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196055733] [2022-12-14 10:10:27,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196055733] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:27,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:10:27,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:10:27,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990438918] [2022-12-14 10:10:27,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:27,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:10:27,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:27,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:10:27,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:10:27,573 INFO L87 Difference]: Start difference. First operand 646 states and 783 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-12-14 10:10:29,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:29,781 INFO L93 Difference]: Finished difference Result 1010 states and 1223 transitions. [2022-12-14 10:10:29,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:10:29,782 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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 [2022-12-14 10:10:29,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:29,782 INFO L225 Difference]: With dead ends: 1010 [2022-12-14 10:10:29,782 INFO L226 Difference]: Without dead ends: 1005 [2022-12-14 10:10:29,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:10:29,783 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 1979 mSDsluCounter, 1758 mSDsCounter, 0 mSdLazyCounter, 1828 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 2355 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:29,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1979 Valid, 2355 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1828 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 10:10:29,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2022-12-14 10:10:30,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 642. [2022-12-14 10:10:30,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.2548387096774194) internal successors, (778), 641 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:30,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 778 transitions. [2022-12-14 10:10:30,326 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 778 transitions. Word has length 116 [2022-12-14 10:10:30,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:30,326 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 778 transitions. [2022-12-14 10:10:30,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-12-14 10:10:30,327 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 778 transitions. [2022-12-14 10:10:30,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-14 10:10:30,327 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:30,327 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] [2022-12-14 10:10:30,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-12-14 10:10:30,327 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)] === [2022-12-14 10:10:30,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:30,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1595268618, now seen corresponding path program 1 times [2022-12-14 10:10:30,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:30,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007222263] [2022-12-14 10:10:30,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:30,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:30,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:30,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:30,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007222263] [2022-12-14 10:10:30,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007222263] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:30,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:10:30,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:10:30,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446605260] [2022-12-14 10:10:30,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:30,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:10:30,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:30,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:10:30,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:10:30,493 INFO L87 Difference]: Start difference. First operand 642 states and 778 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-12-14 10:10:33,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:33,042 INFO L93 Difference]: Finished difference Result 1064 states and 1294 transitions. [2022-12-14 10:10:33,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:10:33,043 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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 [2022-12-14 10:10:33,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:33,044 INFO L225 Difference]: With dead ends: 1064 [2022-12-14 10:10:33,044 INFO L226 Difference]: Without dead ends: 1005 [2022-12-14 10:10:33,044 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 [2022-12-14 10:10:33,044 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 1927 mSDsluCounter, 1782 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1927 SdHoareTripleChecker+Valid, 2380 SdHoareTripleChecker+Invalid, 1862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:33,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1927 Valid, 2380 Invalid, 1862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1858 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 10:10:33,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2022-12-14 10:10:33,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 638. [2022-12-14 10:10:33,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.25487012987013) internal successors, (773), 637 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:33,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 773 transitions. [2022-12-14 10:10:33,553 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 773 transitions. Word has length 116 [2022-12-14 10:10:33,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:33,553 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 773 transitions. [2022-12-14 10:10:33,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-12-14 10:10:33,553 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 773 transitions. [2022-12-14 10:10:33,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-14 10:10:33,554 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:33,554 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] [2022-12-14 10:10:33,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-12-14 10:10:33,554 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:10:33,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:33,554 INFO L85 PathProgramCache]: Analyzing trace with hash -186337996, now seen corresponding path program 1 times [2022-12-14 10:10:33,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:33,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646639357] [2022-12-14 10:10:33,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:33,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:33,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:33,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:33,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646639357] [2022-12-14 10:10:33,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646639357] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:33,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:10:33,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:10:33,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323335769] [2022-12-14 10:10:33,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:33,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:10:33,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:33,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:10:33,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:10:33,724 INFO L87 Difference]: Start difference. First operand 638 states and 773 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-12-14 10:10:36,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:36,095 INFO L93 Difference]: Finished difference Result 1010 states and 1221 transitions. [2022-12-14 10:10:36,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:10:36,096 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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 [2022-12-14 10:10:36,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:36,097 INFO L225 Difference]: With dead ends: 1010 [2022-12-14 10:10:36,097 INFO L226 Difference]: Without dead ends: 1005 [2022-12-14 10:10:36,097 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 [2022-12-14 10:10:36,097 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 1914 mSDsluCounter, 1794 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1914 SdHoareTripleChecker+Valid, 2395 SdHoareTripleChecker+Invalid, 1862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:36,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1914 Valid, 2395 Invalid, 1862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1858 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 10:10:36,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2022-12-14 10:10:36,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 634. [2022-12-14 10:10:36,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 612 states have (on average 1.2549019607843137) internal successors, (768), 633 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:36,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 768 transitions. [2022-12-14 10:10:36,629 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 768 transitions. Word has length 116 [2022-12-14 10:10:36,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:36,629 INFO L495 AbstractCegarLoop]: Abstraction has 634 states and 768 transitions. [2022-12-14 10:10:36,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-12-14 10:10:36,629 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 768 transitions. [2022-12-14 10:10:36,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-14 10:10:36,630 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:36,630 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] [2022-12-14 10:10:36,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-12-14 10:10:36,630 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:10:36,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:36,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1085836029, now seen corresponding path program 1 times [2022-12-14 10:10:36,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:36,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447364055] [2022-12-14 10:10:36,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:36,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:36,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:36,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:36,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447364055] [2022-12-14 10:10:36,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447364055] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:36,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:10:36,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:10:36,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113183403] [2022-12-14 10:10:36,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:36,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:10:36,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:36,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:10:36,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:10:36,798 INFO L87 Difference]: Start difference. First operand 634 states and 768 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-12-14 10:10:39,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:39,223 INFO L93 Difference]: Finished difference Result 1071 states and 1303 transitions. [2022-12-14 10:10:39,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:10:39,224 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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 [2022-12-14 10:10:39,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:39,224 INFO L225 Difference]: With dead ends: 1071 [2022-12-14 10:10:39,224 INFO L226 Difference]: Without dead ends: 1054 [2022-12-14 10:10:39,225 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 [2022-12-14 10:10:39,225 INFO L413 NwaCegarLoop]: 672 mSDtfsCounter, 1811 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 1993 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1811 SdHoareTripleChecker+Valid, 2715 SdHoareTripleChecker+Invalid, 1997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:39,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1811 Valid, 2715 Invalid, 1997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1993 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:10:39,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2022-12-14 10:10:40,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 630. [2022-12-14 10:10:40,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 608 states have (on average 1.2549342105263157) internal successors, (763), 629 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:40,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 763 transitions. [2022-12-14 10:10:40,010 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 763 transitions. Word has length 116 [2022-12-14 10:10:40,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:40,010 INFO L495 AbstractCegarLoop]: Abstraction has 630 states and 763 transitions. [2022-12-14 10:10:40,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-12-14 10:10:40,010 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 763 transitions. [2022-12-14 10:10:40,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-14 10:10:40,011 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:40,011 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] [2022-12-14 10:10:40,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-12-14 10:10:40,011 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:10:40,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:40,011 INFO L85 PathProgramCache]: Analyzing trace with hash 681836784, now seen corresponding path program 1 times [2022-12-14 10:10:40,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:40,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731718156] [2022-12-14 10:10:40,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:40,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:40,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:40,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:40,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731718156] [2022-12-14 10:10:40,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731718156] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:40,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:10:40,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:10:40,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671207209] [2022-12-14 10:10:40,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:40,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:10:40,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:40,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:10:40,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:10:40,177 INFO L87 Difference]: Start difference. First operand 630 states and 763 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-12-14 10:10:42,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:42,818 INFO L93 Difference]: Finished difference Result 1163 states and 1425 transitions. [2022-12-14 10:10:42,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:10:42,819 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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 [2022-12-14 10:10:42,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:42,819 INFO L225 Difference]: With dead ends: 1163 [2022-12-14 10:10:42,819 INFO L226 Difference]: Without dead ends: 1066 [2022-12-14 10:10:42,820 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 [2022-12-14 10:10:42,820 INFO L413 NwaCegarLoop]: 717 mSDtfsCounter, 1773 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 2088 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1773 SdHoareTripleChecker+Valid, 2848 SdHoareTripleChecker+Invalid, 2092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:42,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1773 Valid, 2848 Invalid, 2092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2088 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:10:42,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2022-12-14 10:10:43,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 626. [2022-12-14 10:10:43,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 604 states have (on average 1.2549668874172186) internal successors, (758), 625 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:43,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 758 transitions. [2022-12-14 10:10:43,330 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 758 transitions. Word has length 116 [2022-12-14 10:10:43,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:43,330 INFO L495 AbstractCegarLoop]: Abstraction has 626 states and 758 transitions. [2022-12-14 10:10:43,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-12-14 10:10:43,330 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 758 transitions. [2022-12-14 10:10:43,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-14 10:10:43,331 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:43,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:10:43,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-12-14 10:10:43,331 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:10:43,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:43,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1586628156, now seen corresponding path program 1 times [2022-12-14 10:10:43,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:43,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391589176] [2022-12-14 10:10:43,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:43,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:43,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:43,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:43,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391589176] [2022-12-14 10:10:43,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391589176] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:43,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:10:43,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:10:43,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781180317] [2022-12-14 10:10:43,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:43,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:10:43,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:43,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:10:43,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:10:43,497 INFO L87 Difference]: Start difference. First operand 626 states and 758 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-12-14 10:10:46,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:46,098 INFO L93 Difference]: Finished difference Result 1059 states and 1285 transitions. [2022-12-14 10:10:46,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:10:46,099 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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 [2022-12-14 10:10:46,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:46,099 INFO L225 Difference]: With dead ends: 1059 [2022-12-14 10:10:46,100 INFO L226 Difference]: Without dead ends: 997 [2022-12-14 10:10:46,100 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 [2022-12-14 10:10:46,100 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 1883 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1883 SdHoareTripleChecker+Valid, 2457 SdHoareTripleChecker+Invalid, 1879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:46,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1883 Valid, 2457 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1875 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 10:10:46,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2022-12-14 10:10:46,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 622. [2022-12-14 10:10:46,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 600 states have (on average 1.255) internal successors, (753), 621 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:46,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 753 transitions. [2022-12-14 10:10:46,605 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 753 transitions. Word has length 116 [2022-12-14 10:10:46,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:46,605 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 753 transitions. [2022-12-14 10:10:46,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-12-14 10:10:46,605 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 753 transitions. [2022-12-14 10:10:46,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-14 10:10:46,605 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:46,606 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] [2022-12-14 10:10:46,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-12-14 10:10:46,606 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:10:46,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:46,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1627833229, now seen corresponding path program 1 times [2022-12-14 10:10:46,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:46,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27813207] [2022-12-14 10:10:46,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:46,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:46,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:46,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:46,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27813207] [2022-12-14 10:10:46,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27813207] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:46,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:10:46,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:10:46,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889472174] [2022-12-14 10:10:46,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:46,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:10:46,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:46,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:10:46,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:10:46,773 INFO L87 Difference]: Start difference. First operand 622 states and 753 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-12-14 10:10:49,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:49,503 INFO L93 Difference]: Finished difference Result 1059 states and 1284 transitions. [2022-12-14 10:10:49,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:10:49,503 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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 [2022-12-14 10:10:49,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:49,504 INFO L225 Difference]: With dead ends: 1059 [2022-12-14 10:10:49,504 INFO L226 Difference]: Without dead ends: 997 [2022-12-14 10:10:49,504 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 [2022-12-14 10:10:49,504 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 1876 mSDsluCounter, 1852 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1876 SdHoareTripleChecker+Valid, 2473 SdHoareTripleChecker+Invalid, 1879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:49,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1876 Valid, 2473 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1875 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:10:49,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2022-12-14 10:10:50,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 618. [2022-12-14 10:10:50,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 596 states have (on average 1.25503355704698) internal successors, (748), 617 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:50,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 748 transitions. [2022-12-14 10:10:50,006 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 748 transitions. Word has length 116 [2022-12-14 10:10:50,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:50,006 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 748 transitions. [2022-12-14 10:10:50,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-12-14 10:10:50,006 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 748 transitions. [2022-12-14 10:10:50,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-12-14 10:10:50,007 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:50,007 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] [2022-12-14 10:10:50,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-12-14 10:10:50,007 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:10:50,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:50,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1655562460, now seen corresponding path program 1 times [2022-12-14 10:10:50,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:50,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845266998] [2022-12-14 10:10:50,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:50,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:50,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:50,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:50,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:50,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845266998] [2022-12-14 10:10:50,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845266998] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:50,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:10:50,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 10:10:50,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851277039] [2022-12-14 10:10:50,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:50,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 10:10:50,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:50,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 10:10:50,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-14 10:10:50,393 INFO L87 Difference]: Start difference. First operand 618 states and 748 transitions. Second operand has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:54,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:54,933 INFO L93 Difference]: Finished difference Result 1814 states and 2237 transitions. [2022-12-14 10:10:54,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-14 10:10:54,933 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-12-14 10:10:54,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:54,934 INFO L225 Difference]: With dead ends: 1814 [2022-12-14 10:10:54,934 INFO L226 Difference]: Without dead ends: 1708 [2022-12-14 10:10:54,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-12-14 10:10:54,935 INFO L413 NwaCegarLoop]: 1768 mSDtfsCounter, 4370 mSDsluCounter, 9726 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4370 SdHoareTripleChecker+Valid, 11494 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:54,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4370 Valid, 11494 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1226 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:10:54,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1708 states. [2022-12-14 10:10:55,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1708 to 569. [2022-12-14 10:10:55,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 548 states have (on average 1.25) internal successors, (685), 568 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:55,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 685 transitions. [2022-12-14 10:10:55,440 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 685 transitions. Word has length 117 [2022-12-14 10:10:55,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:55,441 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 685 transitions. [2022-12-14 10:10:55,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:10:55,441 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 685 transitions. [2022-12-14 10:10:55,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-12-14 10:10:55,441 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:55,441 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] [2022-12-14 10:10:55,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-12-14 10:10:55,442 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:10:55,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:55,442 INFO L85 PathProgramCache]: Analyzing trace with hash 453007243, now seen corresponding path program 1 times [2022-12-14 10:10:55,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:55,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53264003] [2022-12-14 10:10:55,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:55,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:56,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:56,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:56,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53264003] [2022-12-14 10:10:56,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53264003] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:56,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:10:56,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-14 10:10:56,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238250018] [2022-12-14 10:10:56,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:56,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 10:10:56,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:56,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 10:10:56,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-12-14 10:10:56,072 INFO L87 Difference]: Start difference. First operand 569 states and 685 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) [2022-12-14 10:11:00,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:00,083 INFO L93 Difference]: Finished difference Result 1574 states and 1932 transitions. [2022-12-14 10:11:00,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-14 10:11:00,084 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 [2022-12-14 10:11:00,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:00,085 INFO L225 Difference]: With dead ends: 1574 [2022-12-14 10:11:00,085 INFO L226 Difference]: Without dead ends: 1354 [2022-12-14 10:11:00,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=275, Invalid=985, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 10:11:00,085 INFO L413 NwaCegarLoop]: 1488 mSDtfsCounter, 3356 mSDsluCounter, 13241 mSDsCounter, 0 mSdLazyCounter, 1795 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3356 SdHoareTripleChecker+Valid, 14729 SdHoareTripleChecker+Invalid, 1797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:00,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3356 Valid, 14729 Invalid, 1797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1795 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 10:11:00,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2022-12-14 10:11:00,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 477. [2022-12-14 10:11:00,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 457 states have (on average 1.236323851203501) internal successors, (565), 476 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:00,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 565 transitions. [2022-12-14 10:11:00,543 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 565 transitions. Word has length 117 [2022-12-14 10:11:00,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:00,543 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 565 transitions. [2022-12-14 10:11:00,543 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) [2022-12-14 10:11:00,543 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 565 transitions. [2022-12-14 10:11:00,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-12-14 10:11:00,544 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:00,544 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] [2022-12-14 10:11:00,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-12-14 10:11:00,544 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:11:00,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:00,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1619500807, now seen corresponding path program 1 times [2022-12-14 10:11:00,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:00,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054862761] [2022-12-14 10:11:00,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:00,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:00,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:00,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:00,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054862761] [2022-12-14 10:11:00,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054862761] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:00,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:00,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 10:11:00,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252135713] [2022-12-14 10:11:00,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:00,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 10:11:00,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:00,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 10:11:00,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-14 10:11:00,929 INFO L87 Difference]: Start difference. First operand 477 states and 565 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:02,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:02,809 INFO L93 Difference]: Finished difference Result 742 states and 879 transitions. [2022-12-14 10:11:02,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 10:11:02,810 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-12-14 10:11:02,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:02,810 INFO L225 Difference]: With dead ends: 742 [2022-12-14 10:11:02,810 INFO L226 Difference]: Without dead ends: 681 [2022-12-14 10:11:02,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-12-14 10:11:02,811 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 2534 mSDsluCounter, 2486 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2534 SdHoareTripleChecker+Valid, 3007 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:02,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2534 Valid, 3007 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 10:11:02,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2022-12-14 10:11:03,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 473. [2022-12-14 10:11:03,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 454 states have (on average 1.2334801762114538) internal successors, (560), 472 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:03,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 560 transitions. [2022-12-14 10:11:03,276 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 560 transitions. Word has length 117 [2022-12-14 10:11:03,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:03,276 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 560 transitions. [2022-12-14 10:11:03,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:03,276 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 560 transitions. [2022-12-14 10:11:03,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-12-14 10:11:03,277 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:03,277 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] [2022-12-14 10:11:03,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-12-14 10:11:03,277 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:11:03,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:03,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1077967282, now seen corresponding path program 1 times [2022-12-14 10:11:03,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:03,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966109248] [2022-12-14 10:11:03,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:03,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:03,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:03,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:03,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966109248] [2022-12-14 10:11:03,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966109248] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:03,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:03,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 10:11:03,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857344568] [2022-12-14 10:11:03,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:03,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 10:11:03,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:03,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 10:11:03,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-14 10:11:03,666 INFO L87 Difference]: Start difference. First operand 473 states and 560 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:06,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:06,462 INFO L93 Difference]: Finished difference Result 1062 states and 1296 transitions. [2022-12-14 10:11:06,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:11:06,463 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-12-14 10:11:06,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:06,464 INFO L225 Difference]: With dead ends: 1062 [2022-12-14 10:11:06,464 INFO L226 Difference]: Without dead ends: 972 [2022-12-14 10:11:06,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-12-14 10:11:06,464 INFO L413 NwaCegarLoop]: 1006 mSDtfsCounter, 2880 mSDsluCounter, 4337 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2880 SdHoareTripleChecker+Valid, 5343 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:06,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2880 Valid, 5343 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 10:11:06,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2022-12-14 10:11:06,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 440. [2022-12-14 10:11:06,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 424 states have (on average 1.2264150943396226) internal successors, (520), 439 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:06,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 520 transitions. [2022-12-14 10:11:06,917 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 520 transitions. Word has length 117 [2022-12-14 10:11:06,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:06,917 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 520 transitions. [2022-12-14 10:11:06,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:06,917 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 520 transitions. [2022-12-14 10:11:06,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-12-14 10:11:06,917 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:06,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:11:06,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-12-14 10:11:06,918 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:11:06,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:06,918 INFO L85 PathProgramCache]: Analyzing trace with hash -368802669, now seen corresponding path program 1 times [2022-12-14 10:11:06,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:06,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423921891] [2022-12-14 10:11:06,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:06,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:06,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:07,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:07,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:07,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423921891] [2022-12-14 10:11:07,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423921891] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:07,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:07,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 10:11:07,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520349008] [2022-12-14 10:11:07,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:07,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 10:11:07,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:07,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 10:11:07,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-14 10:11:07,289 INFO L87 Difference]: Start difference. First operand 440 states and 520 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:10,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:10,045 INFO L93 Difference]: Finished difference Result 990 states and 1210 transitions. [2022-12-14 10:11:10,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:11:10,046 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-12-14 10:11:10,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:10,047 INFO L225 Difference]: With dead ends: 990 [2022-12-14 10:11:10,047 INFO L226 Difference]: Without dead ends: 909 [2022-12-14 10:11:10,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-12-14 10:11:10,047 INFO L413 NwaCegarLoop]: 861 mSDtfsCounter, 2360 mSDsluCounter, 3555 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 4416 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:10,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2360 Valid, 4416 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 10:11:10,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2022-12-14 10:11:10,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 416. [2022-12-14 10:11:10,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 401 states have (on average 1.2194513715710724) internal successors, (489), 415 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:10,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 489 transitions. [2022-12-14 10:11:10,499 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 489 transitions. Word has length 117 [2022-12-14 10:11:10,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:10,499 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 489 transitions. [2022-12-14 10:11:10,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:10,499 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 489 transitions. [2022-12-14 10:11:10,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-12-14 10:11:10,499 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:10,499 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] [2022-12-14 10:11:10,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-12-14 10:11:10,500 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:11:10,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:10,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1858693470, now seen corresponding path program 1 times [2022-12-14 10:11:10,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:10,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247314789] [2022-12-14 10:11:10,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:10,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:10,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:10,880 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:10,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247314789] [2022-12-14 10:11:10,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247314789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:10,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:10,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 10:11:10,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776616570] [2022-12-14 10:11:10,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:10,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 10:11:10,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:10,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 10:11:10,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-14 10:11:10,881 INFO L87 Difference]: Start difference. First operand 416 states and 489 transitions. Second operand has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:15,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:15,154 INFO L93 Difference]: Finished difference Result 1251 states and 1542 transitions. [2022-12-14 10:11:15,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-14 10:11:15,155 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-12-14 10:11:15,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:15,156 INFO L225 Difference]: With dead ends: 1251 [2022-12-14 10:11:15,156 INFO L226 Difference]: Without dead ends: 1155 [2022-12-14 10:11:15,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-12-14 10:11:15,156 INFO L413 NwaCegarLoop]: 1093 mSDtfsCounter, 2959 mSDsluCounter, 6054 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2959 SdHoareTripleChecker+Valid, 7147 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:15,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2959 Valid, 7147 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 10:11:15,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2022-12-14 10:11:15,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 377. [2022-12-14 10:11:15,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 365 states have (on average 1.210958904109589) internal successors, (442), 376 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:15,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 442 transitions. [2022-12-14 10:11:15,586 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 442 transitions. Word has length 117 [2022-12-14 10:11:15,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:15,586 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 442 transitions. [2022-12-14 10:11:15,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:15,586 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 442 transitions. [2022-12-14 10:11:15,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-12-14 10:11:15,586 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:15,586 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] [2022-12-14 10:11:15,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-12-14 10:11:15,587 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:11:15,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:15,587 INFO L85 PathProgramCache]: Analyzing trace with hash 2060775715, now seen corresponding path program 1 times [2022-12-14 10:11:15,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:15,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523237915] [2022-12-14 10:11:15,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:15,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:16,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:16,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:16,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523237915] [2022-12-14 10:11:16,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523237915] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:16,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:16,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 10:11:16,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258440989] [2022-12-14 10:11:16,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:16,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 10:11:16,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:16,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 10:11:16,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-14 10:11:16,064 INFO L87 Difference]: Start difference. First operand 377 states and 442 transitions. Second operand has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:20,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:20,486 INFO L93 Difference]: Finished difference Result 1100 states and 1361 transitions. [2022-12-14 10:11:20,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-14 10:11:20,487 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-12-14 10:11:20,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:20,488 INFO L225 Difference]: With dead ends: 1100 [2022-12-14 10:11:20,488 INFO L226 Difference]: Without dead ends: 944 [2022-12-14 10:11:20,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-12-14 10:11:20,488 INFO L413 NwaCegarLoop]: 834 mSDtfsCounter, 2057 mSDsluCounter, 5074 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2057 SdHoareTripleChecker+Valid, 5908 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:20,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2057 Valid, 5908 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 10:11:20,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2022-12-14 10:11:20,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 278. [2022-12-14 10:11:20,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 271 states have (on average 1.1771217712177122) internal successors, (319), 277 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:20,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 319 transitions. [2022-12-14 10:11:20,865 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 319 transitions. Word has length 117 [2022-12-14 10:11:20,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:20,865 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 319 transitions. [2022-12-14 10:11:20,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:20,865 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 319 transitions. [2022-12-14 10:11:20,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-14 10:11:20,865 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:20,865 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] [2022-12-14 10:11:20,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-12-14 10:11:20,866 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:11:20,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:20,866 INFO L85 PathProgramCache]: Analyzing trace with hash 478002714, now seen corresponding path program 1 times [2022-12-14 10:11:20,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:20,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827150525] [2022-12-14 10:11:20,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:20,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:21,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:21,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:21,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827150525] [2022-12-14 10:11:21,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827150525] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:21,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:21,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 10:11:21,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332554852] [2022-12-14 10:11:21,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:21,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 10:11:21,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:21,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 10:11:21,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-14 10:11:21,260 INFO L87 Difference]: Start difference. First operand 278 states and 319 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) [2022-12-14 10:11:22,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:22,550 INFO L93 Difference]: Finished difference Result 397 states and 458 transitions. [2022-12-14 10:11:22,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:11:22,550 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 [2022-12-14 10:11:22,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:22,551 INFO L225 Difference]: With dead ends: 397 [2022-12-14 10:11:22,551 INFO L226 Difference]: Without dead ends: 393 [2022-12-14 10:11:22,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-12-14 10:11:22,551 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 1403 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:22,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 1442 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 10:11:22,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-12-14 10:11:22,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 274. [2022-12-14 10:11:22,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 268 states have (on average 1.1753731343283582) internal successors, (315), 273 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:22,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 315 transitions. [2022-12-14 10:11:22,929 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 315 transitions. Word has length 118 [2022-12-14 10:11:22,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:22,929 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 315 transitions. [2022-12-14 10:11:22,929 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) [2022-12-14 10:11:22,929 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 315 transitions. [2022-12-14 10:11:22,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-14 10:11:22,930 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:22,930 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] [2022-12-14 10:11:22,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-12-14 10:11:22,930 INFO L420 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:11:22,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:22,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1302514434, now seen corresponding path program 1 times [2022-12-14 10:11:22,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:22,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602942179] [2022-12-14 10:11:22,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:22,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:23,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:23,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:23,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602942179] [2022-12-14 10:11:23,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602942179] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:23,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:23,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 10:11:23,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36673455] [2022-12-14 10:11:23,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:23,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 10:11:23,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:23,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 10:11:23,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-12-14 10:11:23,267 INFO L87 Difference]: Start difference. First operand 274 states and 315 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) [2022-12-14 10:11:24,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:24,496 INFO L93 Difference]: Finished difference Result 473 states and 559 transitions. [2022-12-14 10:11:24,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:11:24,497 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 [2022-12-14 10:11:24,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:24,497 INFO L225 Difference]: With dead ends: 473 [2022-12-14 10:11:24,497 INFO L226 Difference]: Without dead ends: 405 [2022-12-14 10:11:24,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-12-14 10:11:24,498 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 1048 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:24,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 1915 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 10:11:24,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-12-14 10:11:24,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 263. [2022-12-14 10:11:24,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 258 states have (on average 1.1705426356589148) internal successors, (302), 262 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:24,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 302 transitions. [2022-12-14 10:11:24,870 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 302 transitions. Word has length 118 [2022-12-14 10:11:24,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:24,870 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 302 transitions. [2022-12-14 10:11:24,870 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) [2022-12-14 10:11:24,870 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 302 transitions. [2022-12-14 10:11:24,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-14 10:11:24,871 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:24,871 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, 1, 1, 1, 1] [2022-12-14 10:11:24,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-12-14 10:11:24,871 INFO L420 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:11:24,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:24,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1750237182, now seen corresponding path program 1 times [2022-12-14 10:11:24,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:24,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391893827] [2022-12-14 10:11:24,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:24,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:25,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:25,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:25,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391893827] [2022-12-14 10:11:25,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391893827] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:25,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:25,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 10:11:25,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060744425] [2022-12-14 10:11:25,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:25,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 10:11:25,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:25,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 10:11:25,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-14 10:11:25,228 INFO L87 Difference]: Start difference. First operand 263 states and 302 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) [2022-12-14 10:11:26,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:26,475 INFO L93 Difference]: Finished difference Result 486 states and 574 transitions. [2022-12-14 10:11:26,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:11:26,476 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 [2022-12-14 10:11:26,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:26,476 INFO L225 Difference]: With dead ends: 486 [2022-12-14 10:11:26,476 INFO L226 Difference]: Without dead ends: 405 [2022-12-14 10:11:26,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-12-14 10:11:26,477 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 1064 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 2053 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:26,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1064 Valid, 2053 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 10:11:26,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-12-14 10:11:26,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 239. [2022-12-14 10:11:26,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 235 states have (on average 1.1574468085106382) internal successors, (272), 238 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:26,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 272 transitions. [2022-12-14 10:11:26,834 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 272 transitions. Word has length 118 [2022-12-14 10:11:26,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:26,835 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 272 transitions. [2022-12-14 10:11:26,835 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) [2022-12-14 10:11:26,835 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 272 transitions. [2022-12-14 10:11:26,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-14 10:11:26,835 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:26,835 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] [2022-12-14 10:11:26,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-12-14 10:11:26,835 INFO L420 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:11:26,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:26,836 INFO L85 PathProgramCache]: Analyzing trace with hash 912390114, now seen corresponding path program 1 times [2022-12-14 10:11:26,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:26,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312629359] [2022-12-14 10:11:26,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:26,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:27,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:27,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:27,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312629359] [2022-12-14 10:11:27,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312629359] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:27,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:27,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 10:11:27,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280585187] [2022-12-14 10:11:27,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:27,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 10:11:27,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:27,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 10:11:27,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-14 10:11:27,121 INFO L87 Difference]: Start difference. First operand 239 states and 272 transitions. Second operand has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 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) [2022-12-14 10:11:31,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:31,154 INFO L93 Difference]: Finished difference Result 854 states and 1057 transitions. [2022-12-14 10:11:31,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-14 10:11:31,159 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 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 [2022-12-14 10:11:31,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:31,159 INFO L225 Difference]: With dead ends: 854 [2022-12-14 10:11:31,159 INFO L226 Difference]: Without dead ends: 779 [2022-12-14 10:11:31,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=242, Invalid=688, Unknown=0, NotChecked=0, Total=930 [2022-12-14 10:11:31,160 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 2508 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2508 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:31,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2508 Valid, 1315 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:11:31,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2022-12-14 10:11:31,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 243. [2022-12-14 10:11:31,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 239 states have (on average 1.1548117154811715) internal successors, (276), 242 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:31,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 276 transitions. [2022-12-14 10:11:31,555 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 276 transitions. Word has length 118 [2022-12-14 10:11:31,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:31,555 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 276 transitions. [2022-12-14 10:11:31,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 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) [2022-12-14 10:11:31,555 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 276 transitions. [2022-12-14 10:11:31,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-14 10:11:31,555 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:31,555 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] [2022-12-14 10:11:31,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-12-14 10:11:31,556 INFO L420 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:11:31,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:31,556 INFO L85 PathProgramCache]: Analyzing trace with hash 2050593512, now seen corresponding path program 1 times [2022-12-14 10:11:31,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:31,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634662731] [2022-12-14 10:11:31,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:31,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:31,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:31,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:31,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634662731] [2022-12-14 10:11:31,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634662731] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:31,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:31,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:11:31,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065047795] [2022-12-14 10:11:31,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:31,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:11:31,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:31,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:11:31,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:11:31,729 INFO L87 Difference]: Start difference. First operand 243 states and 276 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) [2022-12-14 10:11:32,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:32,808 INFO L93 Difference]: Finished difference Result 342 states and 394 transitions. [2022-12-14 10:11:32,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 10:11:32,808 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 [2022-12-14 10:11:32,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:32,809 INFO L225 Difference]: With dead ends: 342 [2022-12-14 10:11:32,809 INFO L226 Difference]: Without dead ends: 335 [2022-12-14 10:11:32,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2022-12-14 10:11:32,809 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 989 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:32,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 712 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 10:11:32,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-12-14 10:11:33,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 243. [2022-12-14 10:11:33,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 239 states have (on average 1.1506276150627615) internal successors, (275), 242 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:33,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 275 transitions. [2022-12-14 10:11:33,176 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 275 transitions. Word has length 118 [2022-12-14 10:11:33,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:33,176 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 275 transitions. [2022-12-14 10:11:33,176 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) [2022-12-14 10:11:33,176 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 275 transitions. [2022-12-14 10:11:33,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-12-14 10:11:33,177 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:33,177 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] [2022-12-14 10:11:33,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-12-14 10:11:33,177 INFO L420 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:11:33,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:33,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1646273095, now seen corresponding path program 1 times [2022-12-14 10:11:33,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:33,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382624922] [2022-12-14 10:11:33,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:33,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:33,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:33,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:33,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382624922] [2022-12-14 10:11:33,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382624922] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:33,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:33,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 10:11:33,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136780880] [2022-12-14 10:11:33,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:33,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 10:11:33,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:33,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 10:11:33,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-14 10:11:33,478 INFO L87 Difference]: Start difference. First operand 243 states and 275 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 10 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) [2022-12-14 10:11:35,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:35,745 INFO L93 Difference]: Finished difference Result 481 states and 572 transitions. [2022-12-14 10:11:35,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-14 10:11:35,746 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 10 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 [2022-12-14 10:11:35,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:35,746 INFO L225 Difference]: With dead ends: 481 [2022-12-14 10:11:35,747 INFO L226 Difference]: Without dead ends: 474 [2022-12-14 10:11:35,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=193, Invalid=509, Unknown=0, NotChecked=0, Total=702 [2022-12-14 10:11:35,747 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 2352 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2352 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:35,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2352 Valid, 906 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 10:11:35,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-12-14 10:11:36,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 247. [2022-12-14 10:11:36,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 243 states have (on average 1.1481481481481481) internal successors, (279), 246 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:36,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 279 transitions. [2022-12-14 10:11:36,124 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 279 transitions. Word has length 119 [2022-12-14 10:11:36,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:36,124 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 279 transitions. [2022-12-14 10:11:36,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 10 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) [2022-12-14 10:11:36,125 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 279 transitions. [2022-12-14 10:11:36,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-12-14 10:11:36,125 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:36,125 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] [2022-12-14 10:11:36,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-12-14 10:11:36,125 INFO L420 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:11:36,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:36,125 INFO L85 PathProgramCache]: Analyzing trace with hash 500439934, now seen corresponding path program 1 times [2022-12-14 10:11:36,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:36,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545836886] [2022-12-14 10:11:36,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:36,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:36,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:36,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:36,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545836886] [2022-12-14 10:11:36,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545836886] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:36,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:36,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:11:36,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816714694] [2022-12-14 10:11:36,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:36,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:11:36,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:36,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:11:36,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:11:36,295 INFO L87 Difference]: Start difference. First operand 247 states and 279 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 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) [2022-12-14 10:11:37,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:37,476 INFO L93 Difference]: Finished difference Result 438 states and 512 transitions. [2022-12-14 10:11:37,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:11:37,476 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 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 [2022-12-14 10:11:37,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:37,477 INFO L225 Difference]: With dead ends: 438 [2022-12-14 10:11:37,477 INFO L226 Difference]: Without dead ends: 363 [2022-12-14 10:11:37,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2022-12-14 10:11:37,477 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 693 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:37,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 793 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 10:11:37,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-12-14 10:11:37,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 243. [2022-12-14 10:11:37,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 239 states have (on average 1.1464435146443515) internal successors, (274), 242 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:37,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 274 transitions. [2022-12-14 10:11:37,849 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 274 transitions. Word has length 119 [2022-12-14 10:11:37,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:37,849 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 274 transitions. [2022-12-14 10:11:37,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 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) [2022-12-14 10:11:37,849 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 274 transitions. [2022-12-14 10:11:37,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-12-14 10:11:37,850 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:37,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:11:37,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-12-14 10:11:37,850 INFO L420 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:11:37,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:37,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1857631426, now seen corresponding path program 1 times [2022-12-14 10:11:37,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:37,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899368542] [2022-12-14 10:11:37,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:37,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:38,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:38,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:38,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899368542] [2022-12-14 10:11:38,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899368542] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:38,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:38,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:11:38,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385540056] [2022-12-14 10:11:38,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:38,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:11:38,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:38,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:11:38,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:11:38,008 INFO L87 Difference]: Start difference. First operand 243 states and 274 transitions. Second operand has 8 states, 8 states have (on average 15.0) internal successors, (120), 7 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) [2022-12-14 10:11:39,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:39,061 INFO L93 Difference]: Finished difference Result 338 states and 387 transitions. [2022-12-14 10:11:39,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 10:11:39,062 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 7 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 [2022-12-14 10:11:39,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:39,062 INFO L225 Difference]: With dead ends: 338 [2022-12-14 10:11:39,062 INFO L226 Difference]: Without dead ends: 331 [2022-12-14 10:11:39,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2022-12-14 10:11:39,063 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 838 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:39,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 821 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 10:11:39,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-12-14 10:11:39,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 239. [2022-12-14 10:11:39,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 235 states have (on average 1.1446808510638298) internal successors, (269), 238 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:39,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 269 transitions. [2022-12-14 10:11:39,427 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 269 transitions. Word has length 120 [2022-12-14 10:11:39,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:39,427 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 269 transitions. [2022-12-14 10:11:39,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 7 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) [2022-12-14 10:11:39,427 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 269 transitions. [2022-12-14 10:11:39,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-12-14 10:11:39,428 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:39,428 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] [2022-12-14 10:11:39,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-12-14 10:11:39,428 INFO L420 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:11:39,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:39,428 INFO L85 PathProgramCache]: Analyzing trace with hash 646441976, now seen corresponding path program 1 times [2022-12-14 10:11:39,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:39,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843448222] [2022-12-14 10:11:39,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:39,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:41,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:41,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:41,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843448222] [2022-12-14 10:11:41,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843448222] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:41,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:41,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2022-12-14 10:11:41,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062894334] [2022-12-14 10:11:41,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:41,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-12-14 10:11:41,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:41,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-12-14 10:11:41,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1274, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 10:11:41,589 INFO L87 Difference]: Start difference. First operand 239 states and 269 transitions. Second operand has 38 states, 38 states have (on average 3.1578947368421053) internal successors, (120), 37 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) [2022-12-14 10:11:52,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:52,861 INFO L93 Difference]: Finished difference Result 1080 states and 1270 transitions. [2022-12-14 10:11:52,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-12-14 10:11:52,862 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.1578947368421053) internal successors, (120), 37 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 [2022-12-14 10:11:52,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:52,862 INFO L225 Difference]: With dead ends: 1080 [2022-12-14 10:11:52,862 INFO L226 Difference]: Without dead ends: 1072 [2022-12-14 10:11:52,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 890 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=722, Invalid=4108, Unknown=0, NotChecked=0, Total=4830 [2022-12-14 10:11:52,863 INFO L413 NwaCegarLoop]: 905 mSDtfsCounter, 2985 mSDsluCounter, 16153 mSDsCounter, 0 mSdLazyCounter, 8197 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2985 SdHoareTripleChecker+Valid, 17058 SdHoareTripleChecker+Invalid, 8200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:52,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2985 Valid, 17058 Invalid, 8200 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 8197 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-12-14 10:11:52,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2022-12-14 10:11:53,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 268. [2022-12-14 10:11:53,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 264 states have (on average 1.1515151515151516) internal successors, (304), 267 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:53,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 304 transitions. [2022-12-14 10:11:53,276 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 304 transitions. Word has length 120 [2022-12-14 10:11:53,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:53,277 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 304 transitions. [2022-12-14 10:11:53,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.1578947368421053) internal successors, (120), 37 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) [2022-12-14 10:11:53,277 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 304 transitions. [2022-12-14 10:11:53,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-12-14 10:11:53,277 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:53,277 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] [2022-12-14 10:11:53,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-12-14 10:11:53,277 INFO L420 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:11:53,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:53,278 INFO L85 PathProgramCache]: Analyzing trace with hash 303068725, now seen corresponding path program 1 times [2022-12-14 10:11:53,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:53,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830748809] [2022-12-14 10:11:53,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:53,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:53,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:53,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:53,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830748809] [2022-12-14 10:11:53,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830748809] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:53,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:53,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 10:11:53,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075885249] [2022-12-14 10:11:53,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:53,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 10:11:53,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:53,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 10:11:53,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-14 10:11:53,641 INFO L87 Difference]: Start difference. First operand 268 states and 304 transitions. Second operand has 12 states, 12 states have (on average 10.0) internal successors, (120), 11 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) [2022-12-14 10:11:55,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:55,752 INFO L93 Difference]: Finished difference Result 480 states and 570 transitions. [2022-12-14 10:11:55,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:11:55,752 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.0) internal successors, (120), 11 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 [2022-12-14 10:11:55,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:55,753 INFO L225 Difference]: With dead ends: 480 [2022-12-14 10:11:55,753 INFO L226 Difference]: Without dead ends: 474 [2022-12-14 10:11:55,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-12-14 10:11:55,753 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 1114 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 2449 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:55,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1114 Valid, 2449 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 10:11:55,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-12-14 10:11:56,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 262. [2022-12-14 10:11:56,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 259 states have (on average 1.1505791505791505) internal successors, (298), 261 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:56,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 298 transitions. [2022-12-14 10:11:56,170 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 298 transitions. Word has length 120 [2022-12-14 10:11:56,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:56,170 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 298 transitions. [2022-12-14 10:11:56,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.0) internal successors, (120), 11 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) [2022-12-14 10:11:56,170 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 298 transitions. [2022-12-14 10:11:56,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-14 10:11:56,171 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:56,171 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] [2022-12-14 10:11:56,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-12-14 10:11:56,171 INFO L420 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:11:56,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:56,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1010081928, now seen corresponding path program 1 times [2022-12-14 10:11:56,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:56,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963826985] [2022-12-14 10:11:56,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:56,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:56,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:56,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:56,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963826985] [2022-12-14 10:11:56,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963826985] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:56,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:56,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 10:11:56,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243314899] [2022-12-14 10:11:56,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:56,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 10:11:56,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:56,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 10:11:56,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-14 10:11:56,524 INFO L87 Difference]: Start difference. First operand 262 states and 298 transitions. Second operand has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:58,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:58,565 INFO L93 Difference]: Finished difference Result 498 states and 594 transitions. [2022-12-14 10:11:58,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 10:11:58,566 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-12-14 10:11:58,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:58,566 INFO L225 Difference]: With dead ends: 498 [2022-12-14 10:11:58,566 INFO L226 Difference]: Without dead ends: 483 [2022-12-14 10:11:58,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-12-14 10:11:58,567 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 1260 mSDsluCounter, 2114 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:58,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 2584 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 10:11:58,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-12-14 10:11:58,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 221. [2022-12-14 10:11:58,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 219 states have (on average 1.1415525114155252) internal successors, (250), 220 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:58,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 250 transitions. [2022-12-14 10:11:58,955 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 250 transitions. Word has length 121 [2022-12-14 10:11:58,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:58,955 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 250 transitions. [2022-12-14 10:11:58,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:58,955 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 250 transitions. [2022-12-14 10:11:58,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-14 10:11:58,955 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:58,955 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] [2022-12-14 10:11:58,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-12-14 10:11:58,955 INFO L420 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:11:58,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:58,956 INFO L85 PathProgramCache]: Analyzing trace with hash -104382263, now seen corresponding path program 1 times [2022-12-14 10:11:58,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:58,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943349441] [2022-12-14 10:11:58,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:58,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:59,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:59,533 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:59,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943349441] [2022-12-14 10:11:59,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943349441] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:59,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:59,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-14 10:11:59,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014208694] [2022-12-14 10:11:59,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:59,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 10:11:59,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:59,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 10:11:59,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-12-14 10:11:59,534 INFO L87 Difference]: Start difference. First operand 221 states and 250 transitions. Second operand has 17 states, 17 states have (on average 7.117647058823529) internal successors, (121), 16 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:02,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:12:02,623 INFO L93 Difference]: Finished difference Result 597 states and 718 transitions. [2022-12-14 10:12:02,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 10:12:02,624 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.117647058823529) internal successors, (121), 16 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-12-14 10:12:02,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:12:02,624 INFO L225 Difference]: With dead ends: 597 [2022-12-14 10:12:02,624 INFO L226 Difference]: Without dead ends: 558 [2022-12-14 10:12:02,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=279, Invalid=981, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 10:12:02,625 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 1351 mSDsluCounter, 4983 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 5558 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:12:02,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1351 Valid, 5558 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 10:12:02,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-12-14 10:12:02,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 185. [2022-12-14 10:12:02,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 184 states have (on average 1.141304347826087) internal successors, (210), 184 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:02,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 210 transitions. [2022-12-14 10:12:02,985 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 210 transitions. Word has length 121 [2022-12-14 10:12:02,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:12:02,986 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 210 transitions. [2022-12-14 10:12:02,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.117647058823529) internal successors, (121), 16 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:02,986 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 210 transitions. [2022-12-14 10:12:02,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-12-14 10:12:02,986 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:12:02,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:12:02,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-12-14 10:12:02,986 INFO L420 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:12:02,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:12:02,987 INFO L85 PathProgramCache]: Analyzing trace with hash -126635469, now seen corresponding path program 1 times [2022-12-14 10:12:02,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:12:02,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319066358] [2022-12-14 10:12:02,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:12:02,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:12:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:12:03,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:12:03,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:12:03,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319066358] [2022-12-14 10:12:03,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319066358] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:12:03,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:12:03,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:12:03,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568420832] [2022-12-14 10:12:03,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:12:03,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:12:03,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:12:03,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:12:03,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:12:03,088 INFO L87 Difference]: Start difference. First operand 185 states and 210 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:03,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:12:03,844 INFO L93 Difference]: Finished difference Result 299 states and 358 transitions. [2022-12-14 10:12:03,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:12:03,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-12-14 10:12:03,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:12:03,845 INFO L225 Difference]: With dead ends: 299 [2022-12-14 10:12:03,845 INFO L226 Difference]: Without dead ends: 242 [2022-12-14 10:12:03,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:12:03,846 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 85 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:12:03,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 406 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:12:03,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-12-14 10:12:04,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 236. [2022-12-14 10:12:04,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 235 states have (on average 1.1787234042553192) internal successors, (277), 235 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:04,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 277 transitions. [2022-12-14 10:12:04,498 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 277 transitions. Word has length 143 [2022-12-14 10:12:04,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:12:04,498 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 277 transitions. [2022-12-14 10:12:04,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:04,498 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 277 transitions. [2022-12-14 10:12:04,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-12-14 10:12:04,499 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:12:04,499 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] [2022-12-14 10:12:04,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-12-14 10:12:04,499 INFO L420 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:12:04,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:12:04,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1818922574, now seen corresponding path program 1 times [2022-12-14 10:12:04,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:12:04,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520808857] [2022-12-14 10:12:04,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:12:04,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:12:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:12:04,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:12:04,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:12:04,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520808857] [2022-12-14 10:12:04,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520808857] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:12:04,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:12:04,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:12:04,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431499893] [2022-12-14 10:12:04,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:12:04,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:12:04,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:12:04,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:12:04,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:12:04,613 INFO L87 Difference]: Start difference. First operand 236 states and 277 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:05,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:12:05,916 INFO L93 Difference]: Finished difference Result 452 states and 559 transitions. [2022-12-14 10:12:05,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:12:05,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2022-12-14 10:12:05,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:12:05,917 INFO L225 Difference]: With dead ends: 452 [2022-12-14 10:12:05,917 INFO L226 Difference]: Without dead ends: 344 [2022-12-14 10:12:05,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:12:05,918 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 78 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:12:05,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 406 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:12:05,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-12-14 10:12:07,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 334. [2022-12-14 10:12:07,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 333 states have (on average 1.2162162162162162) internal successors, (405), 333 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:07,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 405 transitions. [2022-12-14 10:12:07,126 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 405 transitions. Word has length 146 [2022-12-14 10:12:07,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:12:07,126 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 405 transitions. [2022-12-14 10:12:07,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:07,126 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 405 transitions. [2022-12-14 10:12:07,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-12-14 10:12:07,126 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:12:07,126 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] [2022-12-14 10:12:07,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-12-14 10:12:07,126 INFO L420 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:12:07,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:12:07,127 INFO L85 PathProgramCache]: Analyzing trace with hash -594413634, now seen corresponding path program 1 times [2022-12-14 10:12:07,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:12:07,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446921771] [2022-12-14 10:12:07,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:12:07,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:12:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:12:07,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:12:07,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:12:07,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446921771] [2022-12-14 10:12:07,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446921771] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:12:07,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:12:07,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:12:07,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768754791] [2022-12-14 10:12:07,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:12:07,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:12:07,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:12:07,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:12:07,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:12:07,230 INFO L87 Difference]: Start difference. First operand 334 states and 405 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:09,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:12:09,706 INFO L93 Difference]: Finished difference Result 746 states and 943 transitions. [2022-12-14 10:12:09,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:12:09,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2022-12-14 10:12:09,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:12:09,707 INFO L225 Difference]: With dead ends: 746 [2022-12-14 10:12:09,707 INFO L226 Difference]: Without dead ends: 540 [2022-12-14 10:12:09,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:12:09,708 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 71 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:12:09,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 406 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:12:09,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-12-14 10:12:12,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 522. [2022-12-14 10:12:12,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 521 states have (on average 1.2456813819577734) internal successors, (649), 521 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:12,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 649 transitions. [2022-12-14 10:12:12,025 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 649 transitions. Word has length 149 [2022-12-14 10:12:12,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:12:12,025 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 649 transitions. [2022-12-14 10:12:12,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:12,025 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 649 transitions. [2022-12-14 10:12:12,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-12-14 10:12:12,026 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:12:12,026 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] [2022-12-14 10:12:12,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-12-14 10:12:12,026 INFO L420 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:12:12,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:12:12,026 INFO L85 PathProgramCache]: Analyzing trace with hash -803832101, now seen corresponding path program 1 times [2022-12-14 10:12:12,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:12:12,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256217184] [2022-12-14 10:12:12,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:12:12,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:12:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:12:12,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:12:12,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:12:12,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256217184] [2022-12-14 10:12:12,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256217184] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:12:12,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:12:12,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:12:12,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132894105] [2022-12-14 10:12:12,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:12:12,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:12:12,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:12:12,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:12:12,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:12:12,124 INFO L87 Difference]: Start difference. First operand 522 states and 649 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:16,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:12:16,708 INFO L93 Difference]: Finished difference Result 1310 states and 1675 transitions. [2022-12-14 10:12:16,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:12:16,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2022-12-14 10:12:16,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:12:16,710 INFO L225 Difference]: With dead ends: 1310 [2022-12-14 10:12:16,710 INFO L226 Difference]: Without dead ends: 916 [2022-12-14 10:12:16,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:12:16,710 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 64 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:12:16,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 406 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:12:16,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2022-12-14 10:12:21,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 882. [2022-12-14 10:12:21,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 881 states have (on average 1.2633371169125993) internal successors, (1113), 881 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:21,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1113 transitions. [2022-12-14 10:12:21,128 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1113 transitions. Word has length 152 [2022-12-14 10:12:21,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:12:21,128 INFO L495 AbstractCegarLoop]: Abstraction has 882 states and 1113 transitions. [2022-12-14 10:12:21,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:21,128 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1113 transitions. [2022-12-14 10:12:21,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-12-14 10:12:21,128 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:12:21,128 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, 1, 1, 1, 1] [2022-12-14 10:12:21,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-12-14 10:12:21,129 INFO L420 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:12:21,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:12:21,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1681146358, now seen corresponding path program 1 times [2022-12-14 10:12:21,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:12:21,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822390807] [2022-12-14 10:12:21,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:12:21,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:12:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:12:21,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:12:21,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:12:21,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822390807] [2022-12-14 10:12:21,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822390807] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:12:21,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:12:21,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:12:21,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418421608] [2022-12-14 10:12:21,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:12:21,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:12:21,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:12:21,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:12:21,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:12:21,230 INFO L87 Difference]: Start difference. First operand 882 states and 1113 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:30,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:12:30,019 INFO L93 Difference]: Finished difference Result 2390 states and 3067 transitions. [2022-12-14 10:12:30,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:12:30,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2022-12-14 10:12:30,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:12:30,021 INFO L225 Difference]: With dead ends: 2390 [2022-12-14 10:12:30,021 INFO L226 Difference]: Without dead ends: 1636 [2022-12-14 10:12:30,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:12:30,022 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 57 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:12:30,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 406 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:12:30,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2022-12-14 10:12:38,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1570. [2022-12-14 10:12:38,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 1.2702358189929892) internal successors, (1993), 1569 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:38,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 1993 transitions. [2022-12-14 10:12:38,486 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 1993 transitions. Word has length 155 [2022-12-14 10:12:38,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:12:38,486 INFO L495 AbstractCegarLoop]: Abstraction has 1570 states and 1993 transitions. [2022-12-14 10:12:38,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:38,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 1993 transitions. [2022-12-14 10:12:38,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-12-14 10:12:38,486 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:12:38,486 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] [2022-12-14 10:12:38,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-12-14 10:12:38,487 INFO L420 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:12:38,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:12:38,487 INFO L85 PathProgramCache]: Analyzing trace with hash -438130359, now seen corresponding path program 1 times [2022-12-14 10:12:38,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:12:38,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998937267] [2022-12-14 10:12:38,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:12:38,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:12:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:12:38,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:12:38,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:12:38,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998937267] [2022-12-14 10:12:38,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998937267] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:12:38,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:12:38,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:12:38,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275011664] [2022-12-14 10:12:38,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:12:38,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:12:38,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:12:38,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:12:38,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:12:38,586 INFO L87 Difference]: Start difference. First operand 1570 states and 1993 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:12:55,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:12:55,431 INFO L93 Difference]: Finished difference Result 4454 states and 5707 transitions. [2022-12-14 10:12:55,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:12:55,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2022-12-14 10:12:55,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:12:55,434 INFO L225 Difference]: With dead ends: 4454 [2022-12-14 10:12:55,434 INFO L226 Difference]: Without dead ends: 3012 [2022-12-14 10:12:55,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:12:55,435 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 50 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:12:55,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 406 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:12:55,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3012 states. [2022-12-14 10:13:11,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3012 to 2882. [2022-12-14 10:13:11,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2882 states, 2881 states have (on average 1.2693509198195072) internal successors, (3657), 2881 states have internal predecessors, (3657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:13:11,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2882 states to 2882 states and 3657 transitions. [2022-12-14 10:13:11,717 INFO L78 Accepts]: Start accepts. Automaton has 2882 states and 3657 transitions. Word has length 158 [2022-12-14 10:13:11,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:13:11,718 INFO L495 AbstractCegarLoop]: Abstraction has 2882 states and 3657 transitions. [2022-12-14 10:13:11,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:13:11,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2882 states and 3657 transitions. [2022-12-14 10:13:11,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-12-14 10:13:11,718 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:13:11,718 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] [2022-12-14 10:13:11,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-12-14 10:13:11,719 INFO L420 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:13:11,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:13:11,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1354138196, now seen corresponding path program 1 times [2022-12-14 10:13:11,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:13:11,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245108589] [2022-12-14 10:13:11,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:13:11,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:13:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:13:11,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:13:11,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:13:11,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245108589] [2022-12-14 10:13:11,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245108589] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:13:11,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:13:11,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:13:11,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391316146] [2022-12-14 10:13:11,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:13:11,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:13:11,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:13:11,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:13:11,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:13:11,826 INFO L87 Difference]: Start difference. First operand 2882 states and 3657 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:13:44,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:13:44,386 INFO L93 Difference]: Finished difference Result 8390 states and 10699 transitions. [2022-12-14 10:13:44,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:13:44,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2022-12-14 10:13:44,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:13:44,391 INFO L225 Difference]: With dead ends: 8390 [2022-12-14 10:13:44,392 INFO L226 Difference]: Without dead ends: 5636 [2022-12-14 10:13:44,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:13:44,394 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 39 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:13:44,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 405 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:13:44,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5636 states. [2022-12-14 10:14:15,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5636 to 5378. [2022-12-14 10:14:15,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 1.2633438720476102) internal successors, (6793), 5377 states have internal predecessors, (6793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:14:15,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 6793 transitions. [2022-12-14 10:14:15,911 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 6793 transitions. Word has length 161 [2022-12-14 10:14:15,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:14:15,911 INFO L495 AbstractCegarLoop]: Abstraction has 5378 states and 6793 transitions. [2022-12-14 10:14:15,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:14:15,911 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 6793 transitions. [2022-12-14 10:14:15,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-12-14 10:14:15,911 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:14:15,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:14:15,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-12-14 10:14:15,912 INFO L420 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:14:15,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:14:15,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1257884166, now seen corresponding path program 1 times [2022-12-14 10:14:15,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:14:15,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074241508] [2022-12-14 10:14:15,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:14:15,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:14:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:14:16,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:14:16,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:14:16,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074241508] [2022-12-14 10:14:16,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074241508] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:14:16,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:14:16,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 10:14:16,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325273131] [2022-12-14 10:14:16,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:14:16,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 10:14:16,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:14:16,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 10:14:16,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 10:14:16,066 INFO L87 Difference]: Start difference. First operand 5378 states and 6793 transitions. Second operand has 9 states, 9 states have (on average 18.22222222222222) internal successors, (164), 9 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:15:50,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:15:50,521 INFO L93 Difference]: Finished difference Result 21329 states and 27018 transitions. [2022-12-14 10:15:50,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 10:15:50,522 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.22222222222222) internal successors, (164), 9 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2022-12-14 10:15:50,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:15:50,537 INFO L225 Difference]: With dead ends: 21329 [2022-12-14 10:15:50,537 INFO L226 Difference]: Without dead ends: 16079 [2022-12-14 10:15:50,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2022-12-14 10:15:50,543 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 1612 mSDsluCounter, 3164 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1612 SdHoareTripleChecker+Valid, 3359 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:15:50,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1612 Valid, 3359 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 10:15:50,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16079 states. [2022-12-14 10:16:33,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16079 to 7170. [2022-12-14 10:16:33,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7170 states, 7169 states have (on average 1.2510810433812247) internal successors, (8969), 7169 states have internal predecessors, (8969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:16:33,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7170 states to 7170 states and 8969 transitions. [2022-12-14 10:16:33,044 INFO L78 Accepts]: Start accepts. Automaton has 7170 states and 8969 transitions. Word has length 164 [2022-12-14 10:16:33,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:16:33,044 INFO L495 AbstractCegarLoop]: Abstraction has 7170 states and 8969 transitions. [2022-12-14 10:16:33,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.22222222222222) internal successors, (164), 9 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:16:33,044 INFO L276 IsEmpty]: Start isEmpty. Operand 7170 states and 8969 transitions. [2022-12-14 10:16:33,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-12-14 10:16:33,045 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:16:33,045 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:16:33,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-12-14 10:16:33,045 INFO L420 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:16:33,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:16:33,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1062419323, now seen corresponding path program 1 times [2022-12-14 10:16:33,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:16:33,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754988227] [2022-12-14 10:16:33,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:16:33,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:16:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:16:33,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:16:33,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:16:33,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754988227] [2022-12-14 10:16:33,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754988227] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:16:33,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:16:33,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 10:16:33,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252296926] [2022-12-14 10:16:33,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:16:33,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 10:16:33,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:16:33,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 10:16:33,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 10:16:33,284 INFO L87 Difference]: Start difference. First operand 7170 states and 8969 transitions. Second operand has 9 states, 9 states have (on average 18.444444444444443) internal successors, (166), 9 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:17:15,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:17:15,785 INFO L93 Difference]: Finished difference Result 14214 states and 17803 transitions. [2022-12-14 10:17:15,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 10:17:15,785 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.444444444444443) internal successors, (166), 9 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2022-12-14 10:17:15,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:17:15,791 INFO L225 Difference]: With dead ends: 14214 [2022-12-14 10:17:15,792 INFO L226 Difference]: Without dead ends: 7172 [2022-12-14 10:17:15,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-12-14 10:17:15,796 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 180 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:17:15,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 628 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:17:15,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7172 states. [2022-12-14 10:18:00,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7172 to 7170. [2022-12-14 10:18:00,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7170 states, 7169 states have (on average 1.2509415539126796) internal successors, (8968), 7169 states have internal predecessors, (8968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:18:00,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7170 states to 7170 states and 8968 transitions. [2022-12-14 10:18:00,054 INFO L78 Accepts]: Start accepts. Automaton has 7170 states and 8968 transitions. Word has length 166 [2022-12-14 10:18:00,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:18:00,055 INFO L495 AbstractCegarLoop]: Abstraction has 7170 states and 8968 transitions. [2022-12-14 10:18:00,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.444444444444443) internal successors, (166), 9 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:18:00,055 INFO L276 IsEmpty]: Start isEmpty. Operand 7170 states and 8968 transitions. [2022-12-14 10:18:00,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-12-14 10:18:00,055 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:18:00,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:18:00,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-12-14 10:18:00,056 INFO L420 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-12-14 10:18:00,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:18:00,056 INFO L85 PathProgramCache]: Analyzing trace with hash 293126330, now seen corresponding path program 1 times [2022-12-14 10:18:00,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:18:00,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032685041] [2022-12-14 10:18:00,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:18:00,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:18:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:18:00,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:18:00,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:18:00,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032685041] [2022-12-14 10:18:00,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032685041] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:18:00,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:18:00,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:18:00,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714441956] [2022-12-14 10:18:00,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:18:00,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:18:00,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:18:00,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:18:00,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:18:00,123 INFO L87 Difference]: Start difference. First operand 7170 states and 8968 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:19:02,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:19:02,441 INFO L93 Difference]: Finished difference Result 17286 states and 21641 transitions. [2022-12-14 10:19:02,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:19:02,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2022-12-14 10:19:02,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:19:02,450 INFO L225 Difference]: With dead ends: 17286 [2022-12-14 10:19:02,450 INFO L226 Difference]: Without dead ends: 10244 [2022-12-14 10:19:02,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:19:02,455 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 110 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:19:02,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 309 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:19:02,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10244 states.