./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 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29653e59-c730-4dfb-938f-05747de77233/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29653e59-c730-4dfb-938f-05747de77233/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29653e59-c730-4dfb-938f-05747de77233/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29653e59-c730-4dfb-938f-05747de77233/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.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_29653e59-c730-4dfb-938f-05747de77233/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29653e59-c730-4dfb-938f-05747de77233/bin/uautomizer-tBqnrhUYjU --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 438134aaa8cbf7b10a3435da62ff5e9b4dd424421597a948889467a2e9f2184b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:58:07,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:58:07,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:58:07,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:58:07,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:58:07,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:58:07,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:58:07,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:58:07,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:58:07,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:58:07,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:58:07,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:58:07,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:58:07,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:58:07,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:58:07,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:58:07,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:58:07,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:58:07,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:58:07,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:58:07,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:58:07,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:58:07,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:58:07,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:58:07,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:58:07,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:58:07,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:58:07,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:58:07,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:58:07,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:58:07,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:58:07,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:58:07,859 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:58:07,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:58:07,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:58:07,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:58:07,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:58:07,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:58:07,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:58:07,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:58:07,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:58:07,866 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29653e59-c730-4dfb-938f-05747de77233/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-02 22:58:07,911 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:58:07,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:58:07,912 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:58:07,912 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:58:07,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:58:07,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:58:07,914 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:58:07,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:58:07,915 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:58:07,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:58:07,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:58:07,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:58:07,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 22:58:07,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 22:58:07,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 22:58:07,918 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:58:07,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:58:07,918 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:58:07,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 22:58:07,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:58:07,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:58:07,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 22:58:07,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:58:07,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:58:07,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 22:58:07,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 22:58:07,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:58:07,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 22:58:07,921 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 22:58:07,923 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 22:58:07,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 22:58:07,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:58:07,924 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_29653e59-c730-4dfb-938f-05747de77233/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29653e59-c730-4dfb-938f-05747de77233/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 438134aaa8cbf7b10a3435da62ff5e9b4dd424421597a948889467a2e9f2184b [2021-11-02 22:58:08,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:58:08,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:58:08,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:58:08,348 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:58:08,349 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:58:08,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29653e59-c730-4dfb-938f-05747de77233/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2021-11-02 22:58:08,451 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29653e59-c730-4dfb-938f-05747de77233/bin/uautomizer-tBqnrhUYjU/data/5f26610fc/fa339c71e4e74a878b5a34c29ec5832d/FLAGcc8082328 [2021-11-02 22:58:09,488 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:58:09,489 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2021-11-02 22:58:09,560 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29653e59-c730-4dfb-938f-05747de77233/bin/uautomizer-tBqnrhUYjU/data/5f26610fc/fa339c71e4e74a878b5a34c29ec5832d/FLAGcc8082328 [2021-11-02 22:58:09,897 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29653e59-c730-4dfb-938f-05747de77233/bin/uautomizer-tBqnrhUYjU/data/5f26610fc/fa339c71e4e74a878b5a34c29ec5832d [2021-11-02 22:58:09,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:58:09,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:58:09,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:58:09,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:58:09,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:58:09,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:58:09" (1/1) ... [2021-11-02 22:58:09,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dbe90cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:09, skipping insertion in model container [2021-11-02 22:58:09,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:58:09" (1/1) ... [2021-11-02 22:58:09,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:58:10,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:58:10,790 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[17602,17615] [2021-11-02 22:58:10,836 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[22899,22912] [2021-11-02 22:58:10,857 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[24256,24269] [2021-11-02 22:58:10,887 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[25064,25077] [2021-11-02 22:58:10,925 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[26792,26805] [2021-11-02 22:58:10,942 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[27600,27613] [2021-11-02 22:58:10,958 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[28779,28792] [2021-11-02 22:58:11,006 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[31519,31532] [2021-11-02 22:58:11,023 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[32330,32343] [2021-11-02 22:58:11,043 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[33512,33525] [2021-11-02 22:58:11,063 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[35703,35716] [2021-11-02 22:58:11,103 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[39963,39976] [2021-11-02 22:58:11,111 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[40774,40787] [2021-11-02 22:58:11,141 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[41956,41969] [2021-11-02 22:58:11,170 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[44147,44160] [2021-11-02 22:58:11,196 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[47858,47871] [2021-11-02 22:58:11,237 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[54605,54618] [2021-11-02 22:58:11,244 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[55416,55429] [2021-11-02 22:58:11,253 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[56559,56572] [2021-11-02 22:58:11,269 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[58711,58724] [2021-11-02 22:58:11,297 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[62628,62641] [2021-11-02 22:58:11,352 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[69577,69590] [2021-11-02 22:58:11,465 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[82313,82326] [2021-11-02 22:58:11,495 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[83124,83137] [2021-11-02 22:58:11,505 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[84306,84319] [2021-11-02 22:58:11,523 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[86497,86510] [2021-11-02 22:58:11,550 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[90208,90221] [2021-11-02 22:58:11,592 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[96406,96419] [2021-11-02 22:58:11,655 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[106997,107010] [2021-11-02 22:58:12,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:58:12,780 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:58:12,971 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[17602,17615] [2021-11-02 22:58:12,992 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[22899,22912] [2021-11-02 22:58:13,002 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[24256,24269] [2021-11-02 22:58:13,009 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[25064,25077] [2021-11-02 22:58:13,020 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[26792,26805] [2021-11-02 22:58:13,027 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[27600,27613] [2021-11-02 22:58:13,035 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[28779,28792] [2021-11-02 22:58:13,052 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[31519,31532] [2021-11-02 22:58:13,060 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[32330,32343] [2021-11-02 22:58:13,070 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[33512,33525] [2021-11-02 22:58:13,084 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[35703,35716] [2021-11-02 22:58:13,111 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[39963,39976] [2021-11-02 22:58:13,117 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[40774,40787] [2021-11-02 22:58:13,125 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[41956,41969] [2021-11-02 22:58:13,139 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[44147,44160] [2021-11-02 22:58:13,160 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[47858,47871] [2021-11-02 22:58:13,196 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[54605,54618] [2021-11-02 22:58:13,203 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[55416,55429] [2021-11-02 22:58:13,222 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[56559,56572] [2021-11-02 22:58:13,236 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[58711,58724] [2021-11-02 22:58:13,260 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[62628,62641] [2021-11-02 22:58:13,298 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[69577,69590] [2021-11-02 22:58:13,375 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[82313,82326] [2021-11-02 22:58:13,382 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[83124,83137] [2021-11-02 22:58:13,388 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[84306,84319] [2021-11-02 22:58:13,401 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[86497,86510] [2021-11-02 22:58:13,420 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[90208,90221] [2021-11-02 22:58:13,450 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[96406,96419] [2021-11-02 22:58:13,498 WARN L228 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_29653e59-c730-4dfb-938f-05747de77233/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[106997,107010] [2021-11-02 22:58:14,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:58:14,322 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:58:14,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:14 WrapperNode [2021-11-02 22:58:14,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:58:14,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:58:14,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:58:14,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:58:14,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:14" (1/1) ... [2021-11-02 22:58:14,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:14" (1/1) ... [2021-11-02 22:58:14,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:58:14,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:58:14,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:58:14,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:58:14,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:14" (1/1) ... [2021-11-02 22:58:14,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:14" (1/1) ... [2021-11-02 22:58:14,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:14" (1/1) ... [2021-11-02 22:58:14,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:14" (1/1) ... [2021-11-02 22:58:15,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:14" (1/1) ... [2021-11-02 22:58:15,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:14" (1/1) ... [2021-11-02 22:58:15,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:14" (1/1) ... [2021-11-02 22:58:15,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:58:15,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:58:15,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:58:15,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:58:15,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:14" (1/1) ... [2021-11-02 22:58:15,146 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:58:15,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29653e59-c730-4dfb-938f-05747de77233/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:58:15,183 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29653e59-c730-4dfb-938f-05747de77233/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 22:58:15,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29653e59-c730-4dfb-938f-05747de77233/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 22:58:15,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:58:15,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:58:15,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:58:15,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:58:21,702 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:58:21,703 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-02 22:58:21,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:58:21 BoogieIcfgContainer [2021-11-02 22:58:21,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:58:21,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 22:58:21,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 22:58:21,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 22:58:21,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:58:09" (1/3) ... [2021-11-02 22:58:21,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e5a25f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:58:21, skipping insertion in model container [2021-11-02 22:58:21,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:14" (2/3) ... [2021-11-02 22:58:21,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e5a25f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:58:21, skipping insertion in model container [2021-11-02 22:58:21,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:58:21" (3/3) ... [2021-11-02 22:58:21,723 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2021-11-02 22:58:21,730 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 22:58:21,730 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-11-02 22:58:21,816 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 22:58:21,823 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 22:58:21,823 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-11-02 22:58:21,895 INFO L276 IsEmpty]: Start isEmpty. Operand has 2082 states, 2052 states have (on average 1.8606237816764133) internal successors, (3818), 2081 states have internal predecessors, (3818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:21,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-02 22:58:21,928 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:58:21,929 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:58:21,930 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:58:21,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:21,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1477171740, now seen corresponding path program 1 times [2021-11-02 22:58:21,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:58:21,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645272177] [2021-11-02 22:58:21,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:21,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:58:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:22,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:22,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:58:22,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645272177] [2021-11-02 22:58:22,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645272177] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:58:22,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:58:22,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 22:58:22,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999876655] [2021-11-02 22:58:22,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 22:58:22,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:58:22,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:58:22,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:58:22,860 INFO L87 Difference]: Start difference. First operand has 2082 states, 2052 states have (on average 1.8606237816764133) internal successors, (3818), 2081 states have internal predecessors, (3818), 0 states have call successors, (0), 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 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:24,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:58:24,818 INFO L93 Difference]: Finished difference Result 3095 states and 5492 transitions. [2021-11-02 22:58:24,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:58:24,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-02 22:58:24,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:58:24,859 INFO L225 Difference]: With dead ends: 3095 [2021-11-02 22:58:24,859 INFO L226 Difference]: Without dead ends: 1615 [2021-11-02 22:58:24,872 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:58:24,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2021-11-02 22:58:25,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1615. [2021-11-02 22:58:25,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1615 states, 1586 states have (on average 1.3171500630517023) internal successors, (2089), 1614 states have internal predecessors, (2089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:25,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2089 transitions. [2021-11-02 22:58:25,058 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2089 transitions. Word has length 101 [2021-11-02 22:58:25,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:58:25,059 INFO L470 AbstractCegarLoop]: Abstraction has 1615 states and 2089 transitions. [2021-11-02 22:58:25,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:25,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2089 transitions. [2021-11-02 22:58:25,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-02 22:58:25,066 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:58:25,066 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:58:25,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 22:58:25,067 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:58:25,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:25,068 INFO L85 PathProgramCache]: Analyzing trace with hash -285120067, now seen corresponding path program 1 times [2021-11-02 22:58:25,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:58:25,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885230598] [2021-11-02 22:58:25,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:25,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:58:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:25,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:25,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:58:25,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885230598] [2021-11-02 22:58:25,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885230598] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:58:25,321 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:58:25,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 22:58:25,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338619753] [2021-11-02 22:58:25,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 22:58:25,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:58:25,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:58:25,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:58:25,325 INFO L87 Difference]: Start difference. First operand 1615 states and 2089 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:26,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:58:26,581 INFO L93 Difference]: Finished difference Result 2619 states and 3504 transitions. [2021-11-02 22:58:26,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:58:26,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-11-02 22:58:26,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:58:26,592 INFO L225 Difference]: With dead ends: 2619 [2021-11-02 22:58:26,592 INFO L226 Difference]: Without dead ends: 1347 [2021-11-02 22:58:26,594 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:58:26,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2021-11-02 22:58:26,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1347. [2021-11-02 22:58:26,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1318 states have (on average 1.3566009104704098) internal successors, (1788), 1346 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:26,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 1788 transitions. [2021-11-02 22:58:26,661 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 1788 transitions. Word has length 102 [2021-11-02 22:58:26,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:58:26,662 INFO L470 AbstractCegarLoop]: Abstraction has 1347 states and 1788 transitions. [2021-11-02 22:58:26,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:26,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 1788 transitions. [2021-11-02 22:58:26,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-02 22:58:26,669 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:58:26,670 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:58:26,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 22:58:26,671 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:58:26,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:26,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1226599565, now seen corresponding path program 1 times [2021-11-02 22:58:26,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:58:26,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429019988] [2021-11-02 22:58:26,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:26,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:58:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:26,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:26,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:58:26,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429019988] [2021-11-02 22:58:26,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429019988] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:58:26,924 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:58:26,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 22:58:26,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443978895] [2021-11-02 22:58:26,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 22:58:26,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:58:26,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:58:26,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:58:26,927 INFO L87 Difference]: Start difference. First operand 1347 states and 1788 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:28,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:58:28,204 INFO L93 Difference]: Finished difference Result 2351 states and 3202 transitions. [2021-11-02 22:58:28,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:58:28,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-11-02 22:58:28,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:58:28,214 INFO L225 Difference]: With dead ends: 2351 [2021-11-02 22:58:28,214 INFO L226 Difference]: Without dead ends: 1243 [2021-11-02 22:58:28,217 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:58:28,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2021-11-02 22:58:28,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1243. [2021-11-02 22:58:28,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 1214 states have (on average 1.373146622734761) internal successors, (1667), 1242 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:28,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1667 transitions. [2021-11-02 22:58:28,293 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1667 transitions. Word has length 103 [2021-11-02 22:58:28,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:58:28,297 INFO L470 AbstractCegarLoop]: Abstraction has 1243 states and 1667 transitions. [2021-11-02 22:58:28,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:28,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1667 transitions. [2021-11-02 22:58:28,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-02 22:58:28,307 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:58:28,307 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:58:28,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 22:58:28,309 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:58:28,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:28,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1982583278, now seen corresponding path program 1 times [2021-11-02 22:58:28,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:58:28,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150374880] [2021-11-02 22:58:28,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:28,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:58:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:28,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:28,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:58:28,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150374880] [2021-11-02 22:58:28,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150374880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:58:28,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:58:28,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 22:58:28,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459976903] [2021-11-02 22:58:28,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 22:58:28,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:58:28,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:58:28,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:58:28,489 INFO L87 Difference]: Start difference. First operand 1243 states and 1667 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:29,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:58:29,617 INFO L93 Difference]: Finished difference Result 2247 states and 3080 transitions. [2021-11-02 22:58:29,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:58:29,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-11-02 22:58:29,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:58:29,627 INFO L225 Difference]: With dead ends: 2247 [2021-11-02 22:58:29,628 INFO L226 Difference]: Without dead ends: 1152 [2021-11-02 22:58:29,635 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:58:29,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2021-11-02 22:58:29,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2021-11-02 22:58:29,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 1123 states have (on average 1.3953695458593054) internal successors, (1567), 1151 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:29,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1567 transitions. [2021-11-02 22:58:29,717 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1567 transitions. Word has length 104 [2021-11-02 22:58:29,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:58:29,717 INFO L470 AbstractCegarLoop]: Abstraction has 1152 states and 1567 transitions. [2021-11-02 22:58:29,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:29,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1567 transitions. [2021-11-02 22:58:29,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-02 22:58:29,726 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:58:29,726 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:58:29,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 22:58:29,729 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:58:29,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:29,733 INFO L85 PathProgramCache]: Analyzing trace with hash -457397765, now seen corresponding path program 1 times [2021-11-02 22:58:29,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:58:29,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209483655] [2021-11-02 22:58:29,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:29,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:58:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:29,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:29,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:58:29,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209483655] [2021-11-02 22:58:29,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209483655] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:58:29,983 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:58:29,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 22:58:29,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174342190] [2021-11-02 22:58:29,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 22:58:29,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:58:29,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 22:58:29,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:58:29,987 INFO L87 Difference]: Start difference. First operand 1152 states and 1567 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:31,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:58:31,596 INFO L93 Difference]: Finished difference Result 2737 states and 3782 transitions. [2021-11-02 22:58:31,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:58:31,597 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-02 22:58:31,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:58:31,611 INFO L225 Difference]: With dead ends: 2737 [2021-11-02 22:58:31,612 INFO L226 Difference]: Without dead ends: 1689 [2021-11-02 22:58:31,617 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-02 22:58:31,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2021-11-02 22:58:31,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1611. [2021-11-02 22:58:31,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1611 states, 1582 states have (on average 1.43173198482933) internal successors, (2265), 1610 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:31,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 2265 transitions. [2021-11-02 22:58:31,770 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 2265 transitions. Word has length 105 [2021-11-02 22:58:31,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:58:31,770 INFO L470 AbstractCegarLoop]: Abstraction has 1611 states and 2265 transitions. [2021-11-02 22:58:31,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:31,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 2265 transitions. [2021-11-02 22:58:31,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-02 22:58:31,777 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:58:31,777 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:58:31,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 22:58:31,778 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:58:31,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:31,779 INFO L85 PathProgramCache]: Analyzing trace with hash 943323584, now seen corresponding path program 1 times [2021-11-02 22:58:31,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:58:31,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929991479] [2021-11-02 22:58:31,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:31,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:58:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:31,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:31,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:58:31,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929991479] [2021-11-02 22:58:31,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929991479] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:58:31,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:58:31,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 22:58:31,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119887581] [2021-11-02 22:58:31,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 22:58:31,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:58:31,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 22:58:31,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:58:31,958 INFO L87 Difference]: Start difference. First operand 1611 states and 2265 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:33,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:58:33,356 INFO L93 Difference]: Finished difference Result 3960 states and 5599 transitions. [2021-11-02 22:58:33,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:58:33,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-11-02 22:58:33,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:58:33,376 INFO L225 Difference]: With dead ends: 3960 [2021-11-02 22:58:33,376 INFO L226 Difference]: Without dead ends: 2434 [2021-11-02 22:58:33,380 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-02 22:58:33,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2434 states. [2021-11-02 22:58:33,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2434 to 2332. [2021-11-02 22:58:33,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2332 states, 2303 states have (on average 1.44811115935736) internal successors, (3335), 2331 states have internal predecessors, (3335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:33,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 3335 transitions. [2021-11-02 22:58:33,557 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 3335 transitions. Word has length 106 [2021-11-02 22:58:33,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:58:33,558 INFO L470 AbstractCegarLoop]: Abstraction has 2332 states and 3335 transitions. [2021-11-02 22:58:33,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:33,559 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 3335 transitions. [2021-11-02 22:58:33,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-02 22:58:33,565 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:58:33,566 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:58:33,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 22:58:33,567 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:58:33,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:33,568 INFO L85 PathProgramCache]: Analyzing trace with hash 76195807, now seen corresponding path program 1 times [2021-11-02 22:58:33,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:58:33,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948598668] [2021-11-02 22:58:33,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:33,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:58:33,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:33,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:33,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:58:33,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948598668] [2021-11-02 22:58:33,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948598668] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:58:33,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:58:33,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 22:58:33,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642413795] [2021-11-02 22:58:33,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 22:58:33,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:58:33,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:58:33,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:58:33,747 INFO L87 Difference]: Start difference. First operand 2332 states and 3335 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:35,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:58:35,184 INFO L93 Difference]: Finished difference Result 4579 states and 6584 transitions. [2021-11-02 22:58:35,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:58:35,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-11-02 22:58:35,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:58:35,201 INFO L225 Difference]: With dead ends: 4579 [2021-11-02 22:58:35,201 INFO L226 Difference]: Without dead ends: 2327 [2021-11-02 22:58:35,206 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:58:35,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2327 states. [2021-11-02 22:58:35,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2327 to 2327. [2021-11-02 22:58:35,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2298 states have (on average 1.4469103568320278) internal successors, (3325), 2326 states have internal predecessors, (3325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:35,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3325 transitions. [2021-11-02 22:58:35,440 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3325 transitions. Word has length 107 [2021-11-02 22:58:35,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:58:35,441 INFO L470 AbstractCegarLoop]: Abstraction has 2327 states and 3325 transitions. [2021-11-02 22:58:35,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:35,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3325 transitions. [2021-11-02 22:58:35,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-02 22:58:35,448 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:58:35,448 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:58:35,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-02 22:58:35,449 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:58:35,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:35,449 INFO L85 PathProgramCache]: Analyzing trace with hash 65664385, now seen corresponding path program 1 times [2021-11-02 22:58:35,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:58:35,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561995039] [2021-11-02 22:58:35,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:35,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:58:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:35,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:35,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:58:35,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561995039] [2021-11-02 22:58:35,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561995039] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:58:35,756 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:58:35,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-02 22:58:35,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353359120] [2021-11-02 22:58:35,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-02 22:58:35,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:58:35,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-02 22:58:35,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-02 22:58:35,761 INFO L87 Difference]: Start difference. First operand 2327 states and 3325 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:38,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:58:38,105 INFO L93 Difference]: Finished difference Result 4441 states and 6192 transitions. [2021-11-02 22:58:38,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-02 22:58:38,106 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-11-02 22:58:38,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:58:38,140 INFO L225 Difference]: With dead ends: 4441 [2021-11-02 22:58:38,140 INFO L226 Difference]: Without dead ends: 3107 [2021-11-02 22:58:38,148 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-11-02 22:58:38,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3107 states. [2021-11-02 22:58:38,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3107 to 2327. [2021-11-02 22:58:38,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2298 states have (on average 1.4464751958224542) internal successors, (3324), 2326 states have internal predecessors, (3324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:38,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3324 transitions. [2021-11-02 22:58:38,386 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3324 transitions. Word has length 108 [2021-11-02 22:58:38,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:58:38,387 INFO L470 AbstractCegarLoop]: Abstraction has 2327 states and 3324 transitions. [2021-11-02 22:58:38,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:38,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3324 transitions. [2021-11-02 22:58:38,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-02 22:58:38,394 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:58:38,394 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:58:38,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-02 22:58:38,395 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:58:38,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:38,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1618229889, now seen corresponding path program 1 times [2021-11-02 22:58:38,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:58:38,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849794071] [2021-11-02 22:58:38,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:38,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:58:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:38,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:38,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:58:38,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849794071] [2021-11-02 22:58:38,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849794071] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:58:38,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:58:38,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 22:58:38,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939367680] [2021-11-02 22:58:38,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:58:38,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:58:38,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:58:38,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:58:38,741 INFO L87 Difference]: Start difference. First operand 2327 states and 3324 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:41,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:58:41,561 INFO L93 Difference]: Finished difference Result 3560 states and 5089 transitions. [2021-11-02 22:58:41,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 22:58:41,561 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-11-02 22:58:41,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:58:41,585 INFO L225 Difference]: With dead ends: 3560 [2021-11-02 22:58:41,586 INFO L226 Difference]: Without dead ends: 3083 [2021-11-02 22:58:41,589 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 22:58:41,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3083 states. [2021-11-02 22:58:41,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3083 to 2327. [2021-11-02 22:58:41,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2298 states have (on average 1.4460400348128808) internal successors, (3323), 2326 states have internal predecessors, (3323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:41,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3323 transitions. [2021-11-02 22:58:41,879 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3323 transitions. Word has length 108 [2021-11-02 22:58:41,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:58:41,880 INFO L470 AbstractCegarLoop]: Abstraction has 2327 states and 3323 transitions. [2021-11-02 22:58:41,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:41,880 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3323 transitions. [2021-11-02 22:58:41,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-02 22:58:41,886 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:58:41,886 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:58:41,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-02 22:58:41,887 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:58:41,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:41,888 INFO L85 PathProgramCache]: Analyzing trace with hash 180174419, now seen corresponding path program 1 times [2021-11-02 22:58:41,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:58:41,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575083563] [2021-11-02 22:58:41,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:41,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:58:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:42,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:42,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:58:42,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575083563] [2021-11-02 22:58:42,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575083563] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:58:42,147 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:58:42,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 22:58:42,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790748884] [2021-11-02 22:58:42,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:58:42,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:58:42,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:58:42,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:58:42,150 INFO L87 Difference]: Start difference. First operand 2327 states and 3323 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:45,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:58:45,535 INFO L93 Difference]: Finished difference Result 5002 states and 7204 transitions. [2021-11-02 22:58:45,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 22:58:45,535 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-11-02 22:58:45,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:58:45,566 INFO L225 Difference]: With dead ends: 5002 [2021-11-02 22:58:45,566 INFO L226 Difference]: Without dead ends: 4346 [2021-11-02 22:58:45,570 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 22:58:45,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4346 states. [2021-11-02 22:58:45,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4346 to 2327. [2021-11-02 22:58:45,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2298 states have (on average 1.4456048738033072) internal successors, (3322), 2326 states have internal predecessors, (3322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:45,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3322 transitions. [2021-11-02 22:58:45,966 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3322 transitions. Word has length 108 [2021-11-02 22:58:45,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:58:45,967 INFO L470 AbstractCegarLoop]: Abstraction has 2327 states and 3322 transitions. [2021-11-02 22:58:45,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:45,967 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3322 transitions. [2021-11-02 22:58:45,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-02 22:58:45,975 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:58:45,975 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:58:45,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-02 22:58:45,976 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:58:45,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:45,977 INFO L85 PathProgramCache]: Analyzing trace with hash -860352434, now seen corresponding path program 1 times [2021-11-02 22:58:45,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:58:45,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790063841] [2021-11-02 22:58:45,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:45,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:58:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:46,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:46,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:58:46,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790063841] [2021-11-02 22:58:46,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790063841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:58:46,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:58:46,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 22:58:46,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829308128] [2021-11-02 22:58:46,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:58:46,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:58:46,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:58:46,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:58:46,265 INFO L87 Difference]: Start difference. First operand 2327 states and 3322 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:49,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:58:49,044 INFO L93 Difference]: Finished difference Result 4762 states and 6856 transitions. [2021-11-02 22:58:49,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 22:58:49,045 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-11-02 22:58:49,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:58:49,072 INFO L225 Difference]: With dead ends: 4762 [2021-11-02 22:58:49,073 INFO L226 Difference]: Without dead ends: 4330 [2021-11-02 22:58:49,076 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 22:58:49,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4330 states. [2021-11-02 22:58:49,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4330 to 2327. [2021-11-02 22:58:49,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2298 states have (on average 1.44473455178416) internal successors, (3320), 2326 states have internal predecessors, (3320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:49,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3320 transitions. [2021-11-02 22:58:49,430 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3320 transitions. Word has length 110 [2021-11-02 22:58:49,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:58:49,430 INFO L470 AbstractCegarLoop]: Abstraction has 2327 states and 3320 transitions. [2021-11-02 22:58:49,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:49,432 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3320 transitions. [2021-11-02 22:58:49,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-02 22:58:49,438 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:58:49,438 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:58:49,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-02 22:58:49,439 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:58:49,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:49,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1432283502, now seen corresponding path program 1 times [2021-11-02 22:58:49,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:58:49,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034364101] [2021-11-02 22:58:49,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:49,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:58:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:49,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:49,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:58:49,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034364101] [2021-11-02 22:58:49,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034364101] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:58:49,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:58:49,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-02 22:58:49,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275061855] [2021-11-02 22:58:49,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-02 22:58:49,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:58:49,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-02 22:58:49,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-02 22:58:49,825 INFO L87 Difference]: Start difference. First operand 2327 states and 3320 transitions. Second operand has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:55,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:58:55,241 INFO L93 Difference]: Finished difference Result 5395 states and 7747 transitions. [2021-11-02 22:58:55,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 22:58:55,242 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-11-02 22:58:55,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:58:55,257 INFO L225 Difference]: With dead ends: 5395 [2021-11-02 22:58:55,257 INFO L226 Difference]: Without dead ends: 4891 [2021-11-02 22:58:55,260 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-02 22:58:55,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4891 states. [2021-11-02 22:58:55,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4891 to 2327. [2021-11-02 22:58:55,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2298 states have (on average 1.4442993907745867) internal successors, (3319), 2326 states have internal predecessors, (3319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:55,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3319 transitions. [2021-11-02 22:58:55,601 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3319 transitions. Word has length 110 [2021-11-02 22:58:55,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:58:55,602 INFO L470 AbstractCegarLoop]: Abstraction has 2327 states and 3319 transitions. [2021-11-02 22:58:55,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:55,603 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3319 transitions. [2021-11-02 22:58:55,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-02 22:58:55,609 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:58:55,610 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:58:55,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-02 22:58:55,610 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:58:55,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:55,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1044438404, now seen corresponding path program 1 times [2021-11-02 22:58:55,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:58:55,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711060085] [2021-11-02 22:58:55,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:55,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:58:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:55,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:58:55,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:58:55,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711060085] [2021-11-02 22:58:55,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711060085] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:58:55,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:58:55,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 22:58:55,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6457557] [2021-11-02 22:58:55,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 22:58:55,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:58:55,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 22:58:55,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 22:58:55,900 INFO L87 Difference]: Start difference. First operand 2327 states and 3319 transitions. Second operand has 11 states, 11 states have (on average 10.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:00,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:00,482 INFO L93 Difference]: Finished difference Result 7388 states and 10704 transitions. [2021-11-02 22:59:00,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 22:59:00,483 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-11-02 22:59:00,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:00,494 INFO L225 Difference]: With dead ends: 7388 [2021-11-02 22:59:00,494 INFO L226 Difference]: Without dead ends: 7004 [2021-11-02 22:59:00,496 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 22:59:00,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7004 states. [2021-11-02 22:59:00,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7004 to 2331. [2021-11-02 22:59:00,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2331 states, 2302 states have (on average 1.4435273675065161) internal successors, (3323), 2330 states have internal predecessors, (3323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:00,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2331 states to 2331 states and 3323 transitions. [2021-11-02 22:59:00,842 INFO L78 Accepts]: Start accepts. Automaton has 2331 states and 3323 transitions. Word has length 110 [2021-11-02 22:59:00,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:00,843 INFO L470 AbstractCegarLoop]: Abstraction has 2331 states and 3323 transitions. [2021-11-02 22:59:00,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:00,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2331 states and 3323 transitions. [2021-11-02 22:59:00,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-02 22:59:00,848 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:00,848 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:00,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-02 22:59:00,849 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:59:00,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:00,849 INFO L85 PathProgramCache]: Analyzing trace with hash 237293966, now seen corresponding path program 1 times [2021-11-02 22:59:00,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:00,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055471602] [2021-11-02 22:59:00,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:00,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:01,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:01,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:01,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055471602] [2021-11-02 22:59:01,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055471602] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:01,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:01,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 22:59:01,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623128249] [2021-11-02 22:59:01,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:59:01,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:01,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:59:01,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:59:01,035 INFO L87 Difference]: Start difference. First operand 2331 states and 3323 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:03,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:03,424 INFO L93 Difference]: Finished difference Result 4707 states and 6775 transitions. [2021-11-02 22:59:03,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 22:59:03,425 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-11-02 22:59:03,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:03,434 INFO L225 Difference]: With dead ends: 4707 [2021-11-02 22:59:03,434 INFO L226 Difference]: Without dead ends: 4330 [2021-11-02 22:59:03,436 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 22:59:03,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4330 states. [2021-11-02 22:59:03,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4330 to 2331. [2021-11-02 22:59:03,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2331 states, 2302 states have (on average 1.4430929626411815) internal successors, (3322), 2330 states have internal predecessors, (3322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:03,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2331 states to 2331 states and 3322 transitions. [2021-11-02 22:59:03,843 INFO L78 Accepts]: Start accepts. Automaton has 2331 states and 3322 transitions. Word has length 110 [2021-11-02 22:59:03,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:03,846 INFO L470 AbstractCegarLoop]: Abstraction has 2331 states and 3322 transitions. [2021-11-02 22:59:03,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:03,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2331 states and 3322 transitions. [2021-11-02 22:59:03,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-02 22:59:03,851 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:03,851 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:03,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-02 22:59:03,852 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:59:03,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:03,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1993529301, now seen corresponding path program 1 times [2021-11-02 22:59:03,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:03,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291030574] [2021-11-02 22:59:03,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:03,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:04,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:04,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:04,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291030574] [2021-11-02 22:59:04,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291030574] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:04,093 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:04,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 22:59:04,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107728485] [2021-11-02 22:59:04,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:59:04,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:04,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:59:04,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:59:04,095 INFO L87 Difference]: Start difference. First operand 2331 states and 3322 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:06,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:06,338 INFO L93 Difference]: Finished difference Result 3575 states and 5091 transitions. [2021-11-02 22:59:06,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 22:59:06,338 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-11-02 22:59:06,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:06,345 INFO L225 Difference]: With dead ends: 3575 [2021-11-02 22:59:06,345 INFO L226 Difference]: Without dead ends: 3087 [2021-11-02 22:59:06,348 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 22:59:06,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3087 states. [2021-11-02 22:59:06,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3087 to 2331. [2021-11-02 22:59:06,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2331 states, 2302 states have (on average 1.442658557775847) internal successors, (3321), 2330 states have internal predecessors, (3321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:06,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2331 states to 2331 states and 3321 transitions. [2021-11-02 22:59:06,708 INFO L78 Accepts]: Start accepts. Automaton has 2331 states and 3321 transitions. Word has length 110 [2021-11-02 22:59:06,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:06,709 INFO L470 AbstractCegarLoop]: Abstraction has 2331 states and 3321 transitions. [2021-11-02 22:59:06,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:06,709 INFO L276 IsEmpty]: Start isEmpty. Operand 2331 states and 3321 transitions. [2021-11-02 22:59:06,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-02 22:59:06,713 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:06,713 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:06,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-02 22:59:06,714 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:59:06,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:06,714 INFO L85 PathProgramCache]: Analyzing trace with hash 8802059, now seen corresponding path program 1 times [2021-11-02 22:59:06,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:06,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489529692] [2021-11-02 22:59:06,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:06,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:06,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:06,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:06,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489529692] [2021-11-02 22:59:06,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489529692] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:06,882 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:06,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 22:59:06,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947447380] [2021-11-02 22:59:06,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:59:06,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:06,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:59:06,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:59:06,885 INFO L87 Difference]: Start difference. First operand 2331 states and 3321 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:09,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:09,633 INFO L93 Difference]: Finished difference Result 4714 states and 6779 transitions. [2021-11-02 22:59:09,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 22:59:09,633 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-11-02 22:59:09,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:09,644 INFO L225 Difference]: With dead ends: 4714 [2021-11-02 22:59:09,644 INFO L226 Difference]: Without dead ends: 4330 [2021-11-02 22:59:09,646 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 22:59:09,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4330 states. [2021-11-02 22:59:10,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4330 to 2331. [2021-11-02 22:59:10,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2331 states, 2302 states have (on average 1.4422241529105126) internal successors, (3320), 2330 states have internal predecessors, (3320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:10,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2331 states to 2331 states and 3320 transitions. [2021-11-02 22:59:10,074 INFO L78 Accepts]: Start accepts. Automaton has 2331 states and 3320 transitions. Word has length 110 [2021-11-02 22:59:10,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:10,074 INFO L470 AbstractCegarLoop]: Abstraction has 2331 states and 3320 transitions. [2021-11-02 22:59:10,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:10,074 INFO L276 IsEmpty]: Start isEmpty. Operand 2331 states and 3320 transitions. [2021-11-02 22:59:10,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-02 22:59:10,081 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:10,081 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:10,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-02 22:59:10,082 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:59:10,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:10,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1694810938, now seen corresponding path program 1 times [2021-11-02 22:59:10,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:10,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493071381] [2021-11-02 22:59:10,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:10,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:10,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:10,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:10,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493071381] [2021-11-02 22:59:10,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493071381] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:10,345 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:10,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-02 22:59:10,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488685908] [2021-11-02 22:59:10,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-02 22:59:10,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:10,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-02 22:59:10,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-02 22:59:10,348 INFO L87 Difference]: Start difference. First operand 2331 states and 3320 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:15,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:15,310 INFO L93 Difference]: Finished difference Result 6362 states and 9121 transitions. [2021-11-02 22:59:15,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-02 22:59:15,310 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-11-02 22:59:15,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:15,321 INFO L225 Difference]: With dead ends: 6362 [2021-11-02 22:59:15,322 INFO L226 Difference]: Without dead ends: 5653 [2021-11-02 22:59:15,326 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2021-11-02 22:59:15,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5653 states. [2021-11-02 22:59:15,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5653 to 2335. [2021-11-02 22:59:15,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2306 states have (on average 1.4414570685169124) internal successors, (3324), 2334 states have internal predecessors, (3324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:15,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3324 transitions. [2021-11-02 22:59:15,843 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3324 transitions. Word has length 110 [2021-11-02 22:59:15,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:15,843 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 3324 transitions. [2021-11-02 22:59:15,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:15,844 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3324 transitions. [2021-11-02 22:59:15,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-02 22:59:15,849 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:15,849 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:15,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-02 22:59:15,852 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:59:15,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:15,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1235444325, now seen corresponding path program 1 times [2021-11-02 22:59:15,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:15,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663891822] [2021-11-02 22:59:15,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:15,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:16,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:16,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:16,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663891822] [2021-11-02 22:59:16,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663891822] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:16,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:16,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 22:59:16,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625768088] [2021-11-02 22:59:16,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:59:16,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:16,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:59:16,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:59:16,079 INFO L87 Difference]: Start difference. First operand 2335 states and 3324 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:18,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:18,718 INFO L93 Difference]: Finished difference Result 3595 states and 5119 transitions. [2021-11-02 22:59:18,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 22:59:18,719 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-11-02 22:59:18,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:18,722 INFO L225 Difference]: With dead ends: 3595 [2021-11-02 22:59:18,722 INFO L226 Difference]: Without dead ends: 3091 [2021-11-02 22:59:18,724 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 22:59:18,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3091 states. [2021-11-02 22:59:19,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3091 to 2335. [2021-11-02 22:59:19,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2306 states have (on average 1.4410234171725933) internal successors, (3323), 2334 states have internal predecessors, (3323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:19,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3323 transitions. [2021-11-02 22:59:19,132 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3323 transitions. Word has length 111 [2021-11-02 22:59:19,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:19,133 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 3323 transitions. [2021-11-02 22:59:19,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:19,133 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3323 transitions. [2021-11-02 22:59:19,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-02 22:59:19,138 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:19,138 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:19,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-02 22:59:19,139 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:59:19,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:19,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1587170249, now seen corresponding path program 1 times [2021-11-02 22:59:19,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:19,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353829820] [2021-11-02 22:59:19,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:19,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:19,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:19,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:19,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353829820] [2021-11-02 22:59:19,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353829820] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:19,301 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:19,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 22:59:19,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801641682] [2021-11-02 22:59:19,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:59:19,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:19,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:59:19,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:59:19,304 INFO L87 Difference]: Start difference. First operand 2335 states and 3323 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:22,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:22,579 INFO L93 Difference]: Finished difference Result 4718 states and 6781 transitions. [2021-11-02 22:59:22,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 22:59:22,579 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-11-02 22:59:22,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:22,586 INFO L225 Difference]: With dead ends: 4718 [2021-11-02 22:59:22,586 INFO L226 Difference]: Without dead ends: 4334 [2021-11-02 22:59:22,588 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 22:59:22,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4334 states. [2021-11-02 22:59:22,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4334 to 2331. [2021-11-02 22:59:22,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2331 states, 2302 states have (on average 1.4413553431798436) internal successors, (3318), 2330 states have internal predecessors, (3318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:22,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2331 states to 2331 states and 3318 transitions. [2021-11-02 22:59:22,918 INFO L78 Accepts]: Start accepts. Automaton has 2331 states and 3318 transitions. Word has length 111 [2021-11-02 22:59:22,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:22,919 INFO L470 AbstractCegarLoop]: Abstraction has 2331 states and 3318 transitions. [2021-11-02 22:59:22,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:22,919 INFO L276 IsEmpty]: Start isEmpty. Operand 2331 states and 3318 transitions. [2021-11-02 22:59:22,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-02 22:59:22,924 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:22,924 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:22,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-02 22:59:22,924 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:59:22,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:22,925 INFO L85 PathProgramCache]: Analyzing trace with hash 177268838, now seen corresponding path program 1 times [2021-11-02 22:59:22,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:22,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522416282] [2021-11-02 22:59:22,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:22,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:22,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:23,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:23,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:23,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522416282] [2021-11-02 22:59:23,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522416282] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:23,093 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:23,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 22:59:23,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968841400] [2021-11-02 22:59:23,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:59:23,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:23,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:59:23,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:59:23,095 INFO L87 Difference]: Start difference. First operand 2331 states and 3318 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:25,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:25,975 INFO L93 Difference]: Finished difference Result 5055 states and 7243 transitions. [2021-11-02 22:59:25,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 22:59:25,975 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-11-02 22:59:25,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:25,983 INFO L225 Difference]: With dead ends: 5055 [2021-11-02 22:59:25,984 INFO L226 Difference]: Without dead ends: 4346 [2021-11-02 22:59:25,986 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 22:59:25,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4346 states. [2021-11-02 22:59:26,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4346 to 2327. [2021-11-02 22:59:26,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2298 states have (on average 1.4416884247171453) internal successors, (3313), 2326 states have internal predecessors, (3313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:26,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3313 transitions. [2021-11-02 22:59:26,296 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3313 transitions. Word has length 111 [2021-11-02 22:59:26,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:26,297 INFO L470 AbstractCegarLoop]: Abstraction has 2327 states and 3313 transitions. [2021-11-02 22:59:26,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:26,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3313 transitions. [2021-11-02 22:59:26,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 22:59:26,301 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:26,302 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:26,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-02 22:59:26,302 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:59:26,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:26,303 INFO L85 PathProgramCache]: Analyzing trace with hash 28367950, now seen corresponding path program 1 times [2021-11-02 22:59:26,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:26,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603551786] [2021-11-02 22:59:26,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:26,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:26,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:26,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:26,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603551786] [2021-11-02 22:59:26,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603551786] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:26,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:26,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 22:59:26,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892101061] [2021-11-02 22:59:26,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 22:59:26,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:26,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 22:59:26,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 22:59:26,528 INFO L87 Difference]: Start difference. First operand 2327 states and 3313 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:31,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:31,976 INFO L93 Difference]: Finished difference Result 7516 states and 10873 transitions. [2021-11-02 22:59:31,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 22:59:31,976 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-02 22:59:31,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:31,984 INFO L225 Difference]: With dead ends: 7516 [2021-11-02 22:59:31,984 INFO L226 Difference]: Without dead ends: 7068 [2021-11-02 22:59:31,987 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 22:59:31,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7068 states. [2021-11-02 22:59:32,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7068 to 2335. [2021-11-02 22:59:32,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2306 states have (on average 1.440156114483955) internal successors, (3321), 2334 states have internal predecessors, (3321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:32,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3321 transitions. [2021-11-02 22:59:32,363 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3321 transitions. Word has length 112 [2021-11-02 22:59:32,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:32,363 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 3321 transitions. [2021-11-02 22:59:32,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:32,363 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3321 transitions. [2021-11-02 22:59:32,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 22:59:32,367 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:32,368 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:32,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-02 22:59:32,368 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:59:32,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:32,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1907876888, now seen corresponding path program 1 times [2021-11-02 22:59:32,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:32,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394222493] [2021-11-02 22:59:32,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:32,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:32,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:32,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394222493] [2021-11-02 22:59:32,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394222493] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:32,603 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:32,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 22:59:32,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312876224] [2021-11-02 22:59:32,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:59:32,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:32,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:59:32,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:59:32,605 INFO L87 Difference]: Start difference. First operand 2335 states and 3321 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:35,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:35,434 INFO L93 Difference]: Finished difference Result 3497 states and 4972 transitions. [2021-11-02 22:59:35,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 22:59:35,437 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-02 22:59:35,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:35,440 INFO L225 Difference]: With dead ends: 3497 [2021-11-02 22:59:35,441 INFO L226 Difference]: Without dead ends: 3115 [2021-11-02 22:59:35,442 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 22:59:35,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3115 states. [2021-11-02 22:59:35,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3115 to 2335. [2021-11-02 22:59:35,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2306 states have (on average 1.4392888117953166) internal successors, (3319), 2334 states have internal predecessors, (3319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:35,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3319 transitions. [2021-11-02 22:59:35,773 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3319 transitions. Word has length 112 [2021-11-02 22:59:35,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:35,773 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 3319 transitions. [2021-11-02 22:59:35,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:35,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3319 transitions. [2021-11-02 22:59:35,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 22:59:35,778 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:35,778 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:35,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-02 22:59:35,779 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:59:35,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:35,779 INFO L85 PathProgramCache]: Analyzing trace with hash 230381962, now seen corresponding path program 1 times [2021-11-02 22:59:35,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:35,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765413382] [2021-11-02 22:59:35,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:35,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:35,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:35,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:35,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765413382] [2021-11-02 22:59:35,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765413382] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:35,940 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:35,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 22:59:35,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622760340] [2021-11-02 22:59:35,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:59:35,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:35,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:59:35,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:59:35,942 INFO L87 Difference]: Start difference. First operand 2335 states and 3319 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:38,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:38,520 INFO L93 Difference]: Finished difference Result 3543 states and 5036 transitions. [2021-11-02 22:59:38,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 22:59:38,520 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-02 22:59:38,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:38,524 INFO L225 Difference]: With dead ends: 3543 [2021-11-02 22:59:38,524 INFO L226 Difference]: Without dead ends: 3115 [2021-11-02 22:59:38,526 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 22:59:38,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3115 states. [2021-11-02 22:59:38,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3115 to 2335. [2021-11-02 22:59:38,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2306 states have (on average 1.43755420641804) internal successors, (3315), 2334 states have internal predecessors, (3315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:38,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3315 transitions. [2021-11-02 22:59:38,919 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3315 transitions. Word has length 112 [2021-11-02 22:59:38,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:38,919 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 3315 transitions. [2021-11-02 22:59:38,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:38,920 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3315 transitions. [2021-11-02 22:59:38,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 22:59:38,923 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:38,923 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:38,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-02 22:59:38,924 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:59:38,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:38,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1790606885, now seen corresponding path program 1 times [2021-11-02 22:59:38,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:38,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999412131] [2021-11-02 22:59:38,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:38,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:39,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:39,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:39,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999412131] [2021-11-02 22:59:39,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999412131] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:39,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:39,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 22:59:39,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755304466] [2021-11-02 22:59:39,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:59:39,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:39,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:59:39,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:59:39,131 INFO L87 Difference]: Start difference. First operand 2335 states and 3315 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:42,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:42,161 INFO L93 Difference]: Finished difference Result 4153 states and 5947 transitions. [2021-11-02 22:59:42,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-02 22:59:42,162 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-02 22:59:42,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:42,165 INFO L225 Difference]: With dead ends: 4153 [2021-11-02 22:59:42,165 INFO L226 Difference]: Without dead ends: 3779 [2021-11-02 22:59:42,167 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-02 22:59:42,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3779 states. [2021-11-02 22:59:42,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3779 to 2335. [2021-11-02 22:59:42,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2306 states have (on average 1.4366869037294017) internal successors, (3313), 2334 states have internal predecessors, (3313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:42,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3313 transitions. [2021-11-02 22:59:42,455 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3313 transitions. Word has length 112 [2021-11-02 22:59:42,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:42,455 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 3313 transitions. [2021-11-02 22:59:42,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:42,456 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3313 transitions. [2021-11-02 22:59:42,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 22:59:42,459 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:42,459 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:42,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-02 22:59:42,460 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:59:42,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:42,460 INFO L85 PathProgramCache]: Analyzing trace with hash -582562824, now seen corresponding path program 1 times [2021-11-02 22:59:42,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:42,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059719378] [2021-11-02 22:59:42,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:42,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:42,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:42,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:42,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059719378] [2021-11-02 22:59:42,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059719378] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:42,640 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:42,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 22:59:42,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302506704] [2021-11-02 22:59:42,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:59:42,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:42,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:59:42,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:59:42,642 INFO L87 Difference]: Start difference. First operand 2335 states and 3313 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:45,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:45,083 INFO L93 Difference]: Finished difference Result 3493 states and 4958 transitions. [2021-11-02 22:59:45,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 22:59:45,084 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-02 22:59:45,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:45,086 INFO L225 Difference]: With dead ends: 3493 [2021-11-02 22:59:45,087 INFO L226 Difference]: Without dead ends: 3115 [2021-11-02 22:59:45,088 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 22:59:45,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3115 states. [2021-11-02 22:59:45,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3115 to 2335. [2021-11-02 22:59:45,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2306 states have (on average 1.4358196010407631) internal successors, (3311), 2334 states have internal predecessors, (3311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:45,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3311 transitions. [2021-11-02 22:59:45,381 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3311 transitions. Word has length 112 [2021-11-02 22:59:45,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:45,381 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 3311 transitions. [2021-11-02 22:59:45,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:45,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3311 transitions. [2021-11-02 22:59:45,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 22:59:45,384 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:45,384 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:45,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-02 22:59:45,384 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:59:45,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:45,385 INFO L85 PathProgramCache]: Analyzing trace with hash 977250997, now seen corresponding path program 1 times [2021-11-02 22:59:45,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:45,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027223896] [2021-11-02 22:59:45,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:45,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:45,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:45,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:45,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027223896] [2021-11-02 22:59:45,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027223896] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:45,566 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:45,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 22:59:45,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158591390] [2021-11-02 22:59:45,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:59:45,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:45,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:59:45,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:59:45,569 INFO L87 Difference]: Start difference. First operand 2335 states and 3311 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:48,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:48,402 INFO L93 Difference]: Finished difference Result 4133 states and 5914 transitions. [2021-11-02 22:59:48,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-02 22:59:48,404 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-02 22:59:48,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:48,407 INFO L225 Difference]: With dead ends: 4133 [2021-11-02 22:59:48,407 INFO L226 Difference]: Without dead ends: 3779 [2021-11-02 22:59:48,408 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-02 22:59:48,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3779 states. [2021-11-02 22:59:48,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3779 to 2335. [2021-11-02 22:59:48,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2306 states have (on average 1.435385949696444) internal successors, (3310), 2334 states have internal predecessors, (3310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:48,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3310 transitions. [2021-11-02 22:59:48,720 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3310 transitions. Word has length 112 [2021-11-02 22:59:48,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:48,720 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 3310 transitions. [2021-11-02 22:59:48,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:48,720 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3310 transitions. [2021-11-02 22:59:48,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 22:59:48,723 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:48,723 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:48,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-02 22:59:48,723 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:59:48,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:48,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1047979927, now seen corresponding path program 1 times [2021-11-02 22:59:48,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:48,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088785425] [2021-11-02 22:59:48,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:48,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:48,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:48,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:48,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088785425] [2021-11-02 22:59:48,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088785425] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:48,967 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:48,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-02 22:59:48,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494044362] [2021-11-02 22:59:48,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-02 22:59:48,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:48,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-02 22:59:48,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-02 22:59:48,969 INFO L87 Difference]: Start difference. First operand 2335 states and 3310 transitions. Second operand has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:53,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:53,532 INFO L93 Difference]: Finished difference Result 4737 states and 6756 transitions. [2021-11-02 22:59:53,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 22:59:53,533 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-02 22:59:53,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:53,536 INFO L225 Difference]: With dead ends: 4737 [2021-11-02 22:59:53,537 INFO L226 Difference]: Without dead ends: 4383 [2021-11-02 22:59:53,538 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-02 22:59:53,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4383 states. [2021-11-02 22:59:53,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4383 to 2335. [2021-11-02 22:59:53,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2306 states have (on average 1.4349522983521248) internal successors, (3309), 2334 states have internal predecessors, (3309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:53,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3309 transitions. [2021-11-02 22:59:53,891 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3309 transitions. Word has length 112 [2021-11-02 22:59:53,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:53,891 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 3309 transitions. [2021-11-02 22:59:53,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:53,891 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3309 transitions. [2021-11-02 22:59:53,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 22:59:53,894 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:53,894 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:53,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-02 22:59:53,894 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:59:53,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:53,895 INFO L85 PathProgramCache]: Analyzing trace with hash -619395701, now seen corresponding path program 1 times [2021-11-02 22:59:53,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:53,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765525488] [2021-11-02 22:59:53,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:53,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:54,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:54,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:54,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765525488] [2021-11-02 22:59:54,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765525488] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:54,048 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:54,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 22:59:54,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809538302] [2021-11-02 22:59:54,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:59:54,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:54,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:59:54,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:59:54,050 INFO L87 Difference]: Start difference. First operand 2335 states and 3309 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:57,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:57,355 INFO L93 Difference]: Finished difference Result 4131 states and 5910 transitions. [2021-11-02 22:59:57,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-02 22:59:57,355 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-02 22:59:57,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:57,358 INFO L225 Difference]: With dead ends: 4131 [2021-11-02 22:59:57,359 INFO L226 Difference]: Without dead ends: 3779 [2021-11-02 22:59:57,360 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-02 22:59:57,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3779 states. [2021-11-02 22:59:57,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3779 to 2335. [2021-11-02 22:59:57,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2306 states have (on average 1.4345186470078057) internal successors, (3308), 2334 states have internal predecessors, (3308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:57,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3308 transitions. [2021-11-02 22:59:57,719 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3308 transitions. Word has length 112 [2021-11-02 22:59:57,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:57,720 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 3308 transitions. [2021-11-02 22:59:57,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:57,720 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3308 transitions. [2021-11-02 22:59:57,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 22:59:57,725 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:57,725 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:57,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-02 22:59:57,726 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 22:59:57,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:57,726 INFO L85 PathProgramCache]: Analyzing trace with hash 2062151563, now seen corresponding path program 1 times [2021-11-02 22:59:57,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:57,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823626128] [2021-11-02 22:59:57,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:57,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:57,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:57,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:57,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:57,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823626128] [2021-11-02 22:59:57,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823626128] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:57,951 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:57,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 22:59:57,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388538312] [2021-11-02 22:59:57,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 22:59:57,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:57,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 22:59:57,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 22:59:57,952 INFO L87 Difference]: Start difference. First operand 2335 states and 3308 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:04,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:04,207 INFO L93 Difference]: Finished difference Result 8708 states and 12567 transitions. [2021-11-02 23:00:04,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-02 23:00:04,207 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-02 23:00:04,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:04,217 INFO L225 Difference]: With dead ends: 8708 [2021-11-02 23:00:04,217 INFO L226 Difference]: Without dead ends: 8310 [2021-11-02 23:00:04,220 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 23:00:04,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8310 states. [2021-11-02 23:00:04,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8310 to 2339. [2021-11-02 23:00:04,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 2310 states have (on average 1.4337662337662338) internal successors, (3312), 2338 states have internal predecessors, (3312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:04,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 3312 transitions. [2021-11-02 23:00:04,648 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 3312 transitions. Word has length 112 [2021-11-02 23:00:04,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:04,648 INFO L470 AbstractCegarLoop]: Abstraction has 2339 states and 3312 transitions. [2021-11-02 23:00:04,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:04,649 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 3312 transitions. [2021-11-02 23:00:04,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:00:04,653 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:04,654 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:00:04,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-02 23:00:04,654 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:00:04,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:04,655 INFO L85 PathProgramCache]: Analyzing trace with hash -353306795, now seen corresponding path program 1 times [2021-11-02 23:00:04,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:04,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73322263] [2021-11-02 23:00:04,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:04,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:04,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:04,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:04,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73322263] [2021-11-02 23:00:04,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73322263] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:00:04,835 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:00:04,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:00:04,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693865441] [2021-11-02 23:00:04,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:00:04,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:04,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:00:04,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:00:04,837 INFO L87 Difference]: Start difference. First operand 2339 states and 3312 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:07,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:07,906 INFO L93 Difference]: Finished difference Result 4142 states and 5919 transitions. [2021-11-02 23:00:07,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-02 23:00:07,906 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-02 23:00:07,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:07,910 INFO L225 Difference]: With dead ends: 4142 [2021-11-02 23:00:07,910 INFO L226 Difference]: Without dead ends: 3783 [2021-11-02 23:00:07,911 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:00:07,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3783 states. [2021-11-02 23:00:08,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3783 to 2339. [2021-11-02 23:00:08,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 2310 states have (on average 1.4333333333333333) internal successors, (3311), 2338 states have internal predecessors, (3311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:08,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 3311 transitions. [2021-11-02 23:00:08,289 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 3311 transitions. Word has length 112 [2021-11-02 23:00:08,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:08,289 INFO L470 AbstractCegarLoop]: Abstraction has 2339 states and 3311 transitions. [2021-11-02 23:00:08,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:08,289 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 3311 transitions. [2021-11-02 23:00:08,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:00:08,292 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:08,292 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:00:08,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-02 23:00:08,292 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:00:08,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:08,293 INFO L85 PathProgramCache]: Analyzing trace with hash -2030801721, now seen corresponding path program 1 times [2021-11-02 23:00:08,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:08,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162334639] [2021-11-02 23:00:08,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:08,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:08,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:08,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:08,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162334639] [2021-11-02 23:00:08,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162334639] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:00:08,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:00:08,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-02 23:00:08,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062517417] [2021-11-02 23:00:08,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-02 23:00:08,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:08,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-02 23:00:08,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-02 23:00:08,569 INFO L87 Difference]: Start difference. First operand 2339 states and 3311 transitions. Second operand has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:13,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:13,589 INFO L93 Difference]: Finished difference Result 4751 states and 6765 transitions. [2021-11-02 23:00:13,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:00:13,589 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-02 23:00:13,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:13,593 INFO L225 Difference]: With dead ends: 4751 [2021-11-02 23:00:13,593 INFO L226 Difference]: Without dead ends: 4392 [2021-11-02 23:00:13,594 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-02 23:00:13,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4392 states. [2021-11-02 23:00:13,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4392 to 2339. [2021-11-02 23:00:13,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 2310 states have (on average 1.432900432900433) internal successors, (3310), 2338 states have internal predecessors, (3310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:13,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 3310 transitions. [2021-11-02 23:00:13,967 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 3310 transitions. Word has length 112 [2021-11-02 23:00:13,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:13,968 INFO L470 AbstractCegarLoop]: Abstraction has 2339 states and 3310 transitions. [2021-11-02 23:00:13,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:13,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 3310 transitions. [2021-11-02 23:00:13,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:00:13,970 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:13,970 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:00:13,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-02 23:00:13,970 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:00:13,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:13,971 INFO L85 PathProgramCache]: Analyzing trace with hash -469685084, now seen corresponding path program 1 times [2021-11-02 23:00:13,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:13,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133103215] [2021-11-02 23:00:13,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:13,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:14,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:14,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:14,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133103215] [2021-11-02 23:00:14,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133103215] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:00:14,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:00:14,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:00:14,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22531773] [2021-11-02 23:00:14,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:00:14,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:14,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:00:14,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:00:14,123 INFO L87 Difference]: Start difference. First operand 2339 states and 3310 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:17,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:17,264 INFO L93 Difference]: Finished difference Result 4137 states and 5913 transitions. [2021-11-02 23:00:17,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-02 23:00:17,265 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-02 23:00:17,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:17,269 INFO L225 Difference]: With dead ends: 4137 [2021-11-02 23:00:17,269 INFO L226 Difference]: Without dead ends: 3783 [2021-11-02 23:00:17,270 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:00:17,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3783 states. [2021-11-02 23:00:17,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3783 to 2339. [2021-11-02 23:00:17,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 2310 states have (on average 1.4324675324675324) internal successors, (3309), 2338 states have internal predecessors, (3309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:17,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 3309 transitions. [2021-11-02 23:00:17,693 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 3309 transitions. Word has length 112 [2021-11-02 23:00:17,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:17,694 INFO L470 AbstractCegarLoop]: Abstraction has 2339 states and 3309 transitions. [2021-11-02 23:00:17,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:17,694 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 3309 transitions. [2021-11-02 23:00:17,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:00:17,697 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:17,697 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:00:17,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-02 23:00:17,698 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:00:17,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:17,698 INFO L85 PathProgramCache]: Analyzing trace with hash -79489975, now seen corresponding path program 1 times [2021-11-02 23:00:17,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:17,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921719880] [2021-11-02 23:00:17,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:17,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:17,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:17,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:17,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:17,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921719880] [2021-11-02 23:00:17,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921719880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:00:17,889 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:00:17,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:00:17,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330711792] [2021-11-02 23:00:17,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:00:17,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:17,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:00:17,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:00:17,891 INFO L87 Difference]: Start difference. First operand 2339 states and 3309 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:20,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:20,784 INFO L93 Difference]: Finished difference Result 3787 states and 5364 transitions. [2021-11-02 23:00:20,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:00:20,784 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-02 23:00:20,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:20,787 INFO L225 Difference]: With dead ends: 3787 [2021-11-02 23:00:20,787 INFO L226 Difference]: Without dead ends: 3095 [2021-11-02 23:00:20,788 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:00:20,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states. [2021-11-02 23:00:21,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 2339. [2021-11-02 23:00:21,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 2310 states have (on average 1.4316017316017315) internal successors, (3307), 2338 states have internal predecessors, (3307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:21,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 3307 transitions. [2021-11-02 23:00:21,123 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 3307 transitions. Word has length 112 [2021-11-02 23:00:21,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:21,124 INFO L470 AbstractCegarLoop]: Abstraction has 2339 states and 3307 transitions. [2021-11-02 23:00:21,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:21,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 3307 transitions. [2021-11-02 23:00:21,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:00:21,128 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:21,128 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:00:21,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-02 23:00:21,128 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:00:21,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:21,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1562562040, now seen corresponding path program 1 times [2021-11-02 23:00:21,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:21,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193468186] [2021-11-02 23:00:21,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:21,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:21,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:21,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:21,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193468186] [2021-11-02 23:00:21,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193468186] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:00:21,279 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:00:21,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:00:21,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101023808] [2021-11-02 23:00:21,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:00:21,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:21,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:00:21,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:00:21,280 INFO L87 Difference]: Start difference. First operand 2339 states and 3307 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:24,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:24,073 INFO L93 Difference]: Finished difference Result 3501 states and 4958 transitions. [2021-11-02 23:00:24,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:00:24,073 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-02 23:00:24,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:24,077 INFO L225 Difference]: With dead ends: 3501 [2021-11-02 23:00:24,077 INFO L226 Difference]: Without dead ends: 3119 [2021-11-02 23:00:24,079 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:00:24,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3119 states. [2021-11-02 23:00:24,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3119 to 2339. [2021-11-02 23:00:24,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 2310 states have (on average 1.4307359307359306) internal successors, (3305), 2338 states have internal predecessors, (3305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:24,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 3305 transitions. [2021-11-02 23:00:24,510 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 3305 transitions. Word has length 112 [2021-11-02 23:00:24,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:24,510 INFO L470 AbstractCegarLoop]: Abstraction has 2339 states and 3305 transitions. [2021-11-02 23:00:24,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:24,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 3305 transitions. [2021-11-02 23:00:24,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-02 23:00:24,514 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:24,514 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:00:24,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-02 23:00:24,514 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:00:24,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:24,515 INFO L85 PathProgramCache]: Analyzing trace with hash -725792126, now seen corresponding path program 1 times [2021-11-02 23:00:24,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:24,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50352515] [2021-11-02 23:00:24,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:24,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:24,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:24,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:24,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50352515] [2021-11-02 23:00:24,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50352515] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:00:24,680 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:00:24,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:00:24,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165829462] [2021-11-02 23:00:24,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:00:24,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:24,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:00:24,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:00:24,682 INFO L87 Difference]: Start difference. First operand 2339 states and 3305 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:28,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:28,455 INFO L93 Difference]: Finished difference Result 4778 states and 6834 transitions. [2021-11-02 23:00:28,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:00:28,456 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-11-02 23:00:28,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:28,460 INFO L225 Difference]: With dead ends: 4778 [2021-11-02 23:00:28,460 INFO L226 Difference]: Without dead ends: 4330 [2021-11-02 23:00:28,461 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:00:28,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4330 states. [2021-11-02 23:00:28,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4330 to 2339. [2021-11-02 23:00:28,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 2310 states have (on average 1.42987012987013) internal successors, (3303), 2338 states have internal predecessors, (3303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:28,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 3303 transitions. [2021-11-02 23:00:28,839 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 3303 transitions. Word has length 112 [2021-11-02 23:00:28,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:28,839 INFO L470 AbstractCegarLoop]: Abstraction has 2339 states and 3303 transitions. [2021-11-02 23:00:28,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:28,839 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 3303 transitions. [2021-11-02 23:00:28,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-02 23:00:28,843 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:28,843 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:00:28,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-02 23:00:28,843 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:00:28,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:28,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1990034123, now seen corresponding path program 1 times [2021-11-02 23:00:28,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:28,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715208783] [2021-11-02 23:00:28,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:28,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:28,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:28,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:28,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715208783] [2021-11-02 23:00:28,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715208783] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:00:28,998 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:00:28,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:00:28,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876400689] [2021-11-02 23:00:28,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:00:28,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:29,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:00:29,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:00:29,001 INFO L87 Difference]: Start difference. First operand 2339 states and 3303 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:32,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:32,542 INFO L93 Difference]: Finished difference Result 4778 states and 6832 transitions. [2021-11-02 23:00:32,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:00:32,542 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-02 23:00:32,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:32,546 INFO L225 Difference]: With dead ends: 4778 [2021-11-02 23:00:32,546 INFO L226 Difference]: Without dead ends: 4330 [2021-11-02 23:00:32,548 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:00:32,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4330 states. [2021-11-02 23:00:33,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4330 to 2331. [2021-11-02 23:00:33,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2331 states, 2302 states have (on average 1.4304952215464812) internal successors, (3293), 2330 states have internal predecessors, (3293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:33,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2331 states to 2331 states and 3293 transitions. [2021-11-02 23:00:33,022 INFO L78 Accepts]: Start accepts. Automaton has 2331 states and 3293 transitions. Word has length 113 [2021-11-02 23:00:33,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:33,022 INFO L470 AbstractCegarLoop]: Abstraction has 2331 states and 3293 transitions. [2021-11-02 23:00:33,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:33,022 INFO L276 IsEmpty]: Start isEmpty. Operand 2331 states and 3293 transitions. [2021-11-02 23:00:33,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-02 23:00:33,024 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:33,024 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:00:33,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-02 23:00:33,025 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:00:33,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:33,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1057837107, now seen corresponding path program 1 times [2021-11-02 23:00:33,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:33,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536598493] [2021-11-02 23:00:33,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:33,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:33,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:33,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:33,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536598493] [2021-11-02 23:00:33,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536598493] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:00:33,183 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:00:33,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:00:33,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970128747] [2021-11-02 23:00:33,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:00:33,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:33,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:00:33,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:00:33,185 INFO L87 Difference]: Start difference. First operand 2331 states and 3293 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:37,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:37,242 INFO L93 Difference]: Finished difference Result 4129 states and 5896 transitions. [2021-11-02 23:00:37,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-02 23:00:37,252 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-02 23:00:37,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:37,258 INFO L225 Difference]: With dead ends: 4129 [2021-11-02 23:00:37,259 INFO L226 Difference]: Without dead ends: 3775 [2021-11-02 23:00:37,260 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:00:37,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3775 states. [2021-11-02 23:00:37,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3775 to 2331. [2021-11-02 23:00:37,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2331 states, 2302 states have (on average 1.4300608166811468) internal successors, (3292), 2330 states have internal predecessors, (3292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:37,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2331 states to 2331 states and 3292 transitions. [2021-11-02 23:00:37,791 INFO L78 Accepts]: Start accepts. Automaton has 2331 states and 3292 transitions. Word has length 113 [2021-11-02 23:00:37,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:37,792 INFO L470 AbstractCegarLoop]: Abstraction has 2331 states and 3292 transitions. [2021-11-02 23:00:37,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:37,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2331 states and 3292 transitions. [2021-11-02 23:00:37,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-02 23:00:37,794 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:37,795 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:00:37,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-02 23:00:37,795 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:00:37,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:37,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1247425093, now seen corresponding path program 1 times [2021-11-02 23:00:37,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:37,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193403966] [2021-11-02 23:00:37,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:37,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:37,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:37,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:37,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193403966] [2021-11-02 23:00:37,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193403966] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:00:37,983 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:00:37,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:00:37,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070654959] [2021-11-02 23:00:37,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:00:37,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:37,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:00:37,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:00:37,986 INFO L87 Difference]: Start difference. First operand 2331 states and 3292 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:42,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:42,093 INFO L93 Difference]: Finished difference Result 4134 states and 5899 transitions. [2021-11-02 23:00:42,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-02 23:00:42,094 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-02 23:00:42,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:42,097 INFO L225 Difference]: With dead ends: 4134 [2021-11-02 23:00:42,097 INFO L226 Difference]: Without dead ends: 3775 [2021-11-02 23:00:42,099 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:00:42,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3775 states. [2021-11-02 23:00:42,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3775 to 2331. [2021-11-02 23:00:42,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2331 states, 2302 states have (on average 1.4296264118158124) internal successors, (3291), 2330 states have internal predecessors, (3291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:42,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2331 states to 2331 states and 3291 transitions. [2021-11-02 23:00:42,497 INFO L78 Accepts]: Start accepts. Automaton has 2331 states and 3291 transitions. Word has length 113 [2021-11-02 23:00:42,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:42,497 INFO L470 AbstractCegarLoop]: Abstraction has 2331 states and 3291 transitions. [2021-11-02 23:00:42,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:42,497 INFO L276 IsEmpty]: Start isEmpty. Operand 2331 states and 3291 transitions. [2021-11-02 23:00:42,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-02 23:00:42,499 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:42,499 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:00:42,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-02 23:00:42,499 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:00:42,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:42,500 INFO L85 PathProgramCache]: Analyzing trace with hash 927714838, now seen corresponding path program 1 times [2021-11-02 23:00:42,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:42,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987271287] [2021-11-02 23:00:42,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:42,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:42,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:42,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:42,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987271287] [2021-11-02 23:00:42,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987271287] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:00:42,634 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:00:42,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:00:42,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537616869] [2021-11-02 23:00:42,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:00:42,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:42,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:00:42,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:00:42,636 INFO L87 Difference]: Start difference. First operand 2331 states and 3291 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:46,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:46,883 INFO L93 Difference]: Finished difference Result 4728 states and 6751 transitions. [2021-11-02 23:00:46,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:00:46,884 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-02 23:00:46,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:46,888 INFO L225 Difference]: With dead ends: 4728 [2021-11-02 23:00:46,888 INFO L226 Difference]: Without dead ends: 4330 [2021-11-02 23:00:46,889 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:00:46,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4330 states. [2021-11-02 23:00:47,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4330 to 2327. [2021-11-02 23:00:47,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2298 states have (on average 1.4299390774586598) internal successors, (3286), 2326 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:47,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3286 transitions. [2021-11-02 23:00:47,356 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3286 transitions. Word has length 113 [2021-11-02 23:00:47,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:47,356 INFO L470 AbstractCegarLoop]: Abstraction has 2327 states and 3286 transitions. [2021-11-02 23:00:47,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:47,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3286 transitions. [2021-11-02 23:00:47,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:00:47,358 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:47,358 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:00:47,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-02 23:00:47,359 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:00:47,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:47,359 INFO L85 PathProgramCache]: Analyzing trace with hash -946629140, now seen corresponding path program 1 times [2021-11-02 23:00:47,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:47,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639798456] [2021-11-02 23:00:47,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:47,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:47,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:47,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:47,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639798456] [2021-11-02 23:00:47,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639798456] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:00:47,602 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:00:47,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-02 23:00:47,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702289770] [2021-11-02 23:00:47,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-02 23:00:47,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:47,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-02 23:00:47,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-02 23:00:47,603 INFO L87 Difference]: Start difference. First operand 2327 states and 3286 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) [2021-11-02 23:00:53,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:53,629 INFO L93 Difference]: Finished difference Result 4801 states and 6824 transitions. [2021-11-02 23:00:53,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:00:53,629 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 [2021-11-02 23:00:53,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:53,634 INFO L225 Difference]: With dead ends: 4801 [2021-11-02 23:00:53,634 INFO L226 Difference]: Without dead ends: 4411 [2021-11-02 23:00:53,636 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-02 23:00:53,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4411 states. [2021-11-02 23:00:54,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4411 to 2327. [2021-11-02 23:00:54,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2298 states have (on average 1.4290687554395127) internal successors, (3284), 2326 states have internal predecessors, (3284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:54,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3284 transitions. [2021-11-02 23:00:54,099 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3284 transitions. Word has length 114 [2021-11-02 23:00:54,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:54,099 INFO L470 AbstractCegarLoop]: Abstraction has 2327 states and 3284 transitions. [2021-11-02 23:00:54,100 INFO L471 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) [2021-11-02 23:00:54,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3284 transitions. [2021-11-02 23:00:54,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:00:54,103 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:54,104 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:00:54,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-02 23:00:54,104 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:00:54,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:54,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1355474368, now seen corresponding path program 1 times [2021-11-02 23:00:54,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:54,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868226534] [2021-11-02 23:00:54,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:54,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:54,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:54,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:54,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868226534] [2021-11-02 23:00:54,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868226534] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:00:54,286 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:00:54,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:00:54,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338297328] [2021-11-02 23:00:54,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:00:54,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:54,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:00:54,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:00:54,288 INFO L87 Difference]: Start difference. First operand 2327 states and 3284 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:58,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:58,707 INFO L93 Difference]: Finished difference Result 4610 states and 6566 transitions. [2021-11-02 23:00:58,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:00:58,708 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-02 23:00:58,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:58,712 INFO L225 Difference]: With dead ends: 4610 [2021-11-02 23:00:58,712 INFO L226 Difference]: Without dead ends: 4234 [2021-11-02 23:00:58,713 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:00:58,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2021-11-02 23:00:59,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 2327. [2021-11-02 23:00:59,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2298 states have (on average 1.4273281114012184) internal successors, (3280), 2326 states have internal predecessors, (3280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:59,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3280 transitions. [2021-11-02 23:00:59,228 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3280 transitions. Word has length 114 [2021-11-02 23:00:59,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:59,228 INFO L470 AbstractCegarLoop]: Abstraction has 2327 states and 3280 transitions. [2021-11-02 23:00:59,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:59,228 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3280 transitions. [2021-11-02 23:00:59,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:00:59,231 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:59,231 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:00:59,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-02 23:00:59,231 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:00:59,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:59,232 INFO L85 PathProgramCache]: Analyzing trace with hash -987372193, now seen corresponding path program 1 times [2021-11-02 23:00:59,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:59,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723934113] [2021-11-02 23:00:59,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:59,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:59,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:59,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:59,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723934113] [2021-11-02 23:00:59,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723934113] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:00:59,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:00:59,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:00:59,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962657031] [2021-11-02 23:00:59,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:00:59,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:59,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:00:59,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:00:59,486 INFO L87 Difference]: Start difference. First operand 2327 states and 3280 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) [2021-11-02 23:01:05,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:05,327 INFO L93 Difference]: Finished difference Result 6604 states and 9463 transitions. [2021-11-02 23:01:05,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:01:05,327 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 [2021-11-02 23:01:05,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:05,333 INFO L225 Difference]: With dead ends: 6604 [2021-11-02 23:01:05,333 INFO L226 Difference]: Without dead ends: 6248 [2021-11-02 23:01:05,335 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:01:05,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6248 states. [2021-11-02 23:01:05,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6248 to 2335. [2021-11-02 23:01:05,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2306 states have (on average 1.4258456201214225) internal successors, (3288), 2334 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:05,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3288 transitions. [2021-11-02 23:01:05,808 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3288 transitions. Word has length 114 [2021-11-02 23:01:05,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:05,809 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 3288 transitions. [2021-11-02 23:01:05,809 INFO L471 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) [2021-11-02 23:01:05,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3288 transitions. [2021-11-02 23:01:05,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:01:05,811 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:05,811 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:01:05,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-02 23:01:05,811 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:01:05,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:05,812 INFO L85 PathProgramCache]: Analyzing trace with hash -351977045, now seen corresponding path program 1 times [2021-11-02 23:01:05,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:05,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959229275] [2021-11-02 23:01:05,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:05,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:05,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:05,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:05,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959229275] [2021-11-02 23:01:05,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959229275] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:01:05,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:01:05,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:01:05,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863092451] [2021-11-02 23:01:05,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:01:05,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:05,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:01:05,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:01:05,951 INFO L87 Difference]: Start difference. First operand 2335 states and 3288 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:09,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:09,466 INFO L93 Difference]: Finished difference Result 4584 states and 6525 transitions. [2021-11-02 23:01:09,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:01:09,467 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-02 23:01:09,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:09,471 INFO L225 Difference]: With dead ends: 4584 [2021-11-02 23:01:09,471 INFO L226 Difference]: Without dead ends: 4234 [2021-11-02 23:01:09,472 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:01:09,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2021-11-02 23:01:10,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 2335. [2021-11-02 23:01:10,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2306 states have (on average 1.4249783174327841) internal successors, (3286), 2334 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:10,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3286 transitions. [2021-11-02 23:01:10,011 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3286 transitions. Word has length 114 [2021-11-02 23:01:10,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:10,012 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 3286 transitions. [2021-11-02 23:01:10,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:10,012 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3286 transitions. [2021-11-02 23:01:10,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:01:10,015 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:10,016 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:01:10,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-11-02 23:01:10,016 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:01:10,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:10,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1812075390, now seen corresponding path program 1 times [2021-11-02 23:01:10,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:10,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137582837] [2021-11-02 23:01:10,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:10,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:10,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:10,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:10,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137582837] [2021-11-02 23:01:10,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137582837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:01:10,183 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:01:10,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:01:10,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441462107] [2021-11-02 23:01:10,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:01:10,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:10,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:01:10,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:01:10,185 INFO L87 Difference]: Start difference. First operand 2335 states and 3286 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:14,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:14,044 INFO L93 Difference]: Finished difference Result 4600 states and 6545 transitions. [2021-11-02 23:01:14,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:01:14,044 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-02 23:01:14,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:14,047 INFO L225 Difference]: With dead ends: 4600 [2021-11-02 23:01:14,047 INFO L226 Difference]: Without dead ends: 4234 [2021-11-02 23:01:14,048 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:01:14,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2021-11-02 23:01:14,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 2335. [2021-11-02 23:01:14,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2306 states have (on average 1.4232437120555075) internal successors, (3282), 2334 states have internal predecessors, (3282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:14,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3282 transitions. [2021-11-02 23:01:14,614 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3282 transitions. Word has length 114 [2021-11-02 23:01:14,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:14,615 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 3282 transitions. [2021-11-02 23:01:14,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:14,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3282 transitions. [2021-11-02 23:01:14,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:01:14,617 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:14,617 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:01:14,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-02 23:01:14,618 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:01:14,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:14,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1847714225, now seen corresponding path program 1 times [2021-11-02 23:01:14,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:14,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566044738] [2021-11-02 23:01:14,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:14,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:14,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:14,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:14,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566044738] [2021-11-02 23:01:14,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566044738] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:01:14,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:01:14,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:01:14,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447901455] [2021-11-02 23:01:14,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:01:14,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:14,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:01:14,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:01:14,875 INFO L87 Difference]: Start difference. First operand 2335 states and 3282 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) [2021-11-02 23:01:22,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:22,660 INFO L93 Difference]: Finished difference Result 7308 states and 10431 transitions. [2021-11-02 23:01:22,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-02 23:01:22,660 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 [2021-11-02 23:01:22,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:22,670 INFO L225 Difference]: With dead ends: 7308 [2021-11-02 23:01:22,671 INFO L226 Difference]: Without dead ends: 6932 [2021-11-02 23:01:22,673 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 23:01:22,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6932 states. [2021-11-02 23:01:23,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6932 to 2351. [2021-11-02 23:01:23,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2351 states, 2322 states have (on average 1.4203273040482343) internal successors, (3298), 2350 states have internal predecessors, (3298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:23,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2351 states to 2351 states and 3298 transitions. [2021-11-02 23:01:23,209 INFO L78 Accepts]: Start accepts. Automaton has 2351 states and 3298 transitions. Word has length 114 [2021-11-02 23:01:23,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:23,209 INFO L470 AbstractCegarLoop]: Abstraction has 2351 states and 3298 transitions. [2021-11-02 23:01:23,209 INFO L471 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) [2021-11-02 23:01:23,209 INFO L276 IsEmpty]: Start isEmpty. Operand 2351 states and 3298 transitions. [2021-11-02 23:01:23,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:01:23,213 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:23,213 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:01:23,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-11-02 23:01:23,213 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:01:23,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:23,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1611191930, now seen corresponding path program 1 times [2021-11-02 23:01:23,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:23,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404197758] [2021-11-02 23:01:23,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:23,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:23,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:23,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:23,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404197758] [2021-11-02 23:01:23,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404197758] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:01:23,448 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:01:23,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:01:23,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155843764] [2021-11-02 23:01:23,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:01:23,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:23,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:01:23,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:01:23,450 INFO L87 Difference]: Start difference. First operand 2351 states and 3298 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) [2021-11-02 23:01:31,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:31,364 INFO L93 Difference]: Finished difference Result 7256 states and 10357 transitions. [2021-11-02 23:01:31,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-02 23:01:31,364 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 [2021-11-02 23:01:31,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:31,371 INFO L225 Difference]: With dead ends: 7256 [2021-11-02 23:01:31,371 INFO L226 Difference]: Without dead ends: 6906 [2021-11-02 23:01:31,373 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 23:01:31,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6906 states. [2021-11-02 23:01:31,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6906 to 2359. [2021-11-02 23:01:31,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2359 states, 2330 states have (on average 1.4188841201716738) internal successors, (3306), 2358 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:31,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 3306 transitions. [2021-11-02 23:01:31,978 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 3306 transitions. Word has length 114 [2021-11-02 23:01:31,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:31,978 INFO L470 AbstractCegarLoop]: Abstraction has 2359 states and 3306 transitions. [2021-11-02 23:01:31,978 INFO L471 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) [2021-11-02 23:01:31,978 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 3306 transitions. [2021-11-02 23:01:31,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:01:31,980 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:31,980 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:01:31,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-11-02 23:01:31,981 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:01:31,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:31,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1368364718, now seen corresponding path program 1 times [2021-11-02 23:01:31,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:31,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060623713] [2021-11-02 23:01:31,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:31,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:32,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:32,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:32,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060623713] [2021-11-02 23:01:32,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060623713] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:01:32,145 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:01:32,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:01:32,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552578329] [2021-11-02 23:01:32,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:01:32,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:32,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:01:32,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:01:32,147 INFO L87 Difference]: Start difference. First operand 2359 states and 3306 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:36,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:36,288 INFO L93 Difference]: Finished difference Result 4584 states and 6513 transitions. [2021-11-02 23:01:36,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:01:36,289 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-02 23:01:36,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:36,293 INFO L225 Difference]: With dead ends: 4584 [2021-11-02 23:01:36,293 INFO L226 Difference]: Without dead ends: 4234 [2021-11-02 23:01:36,294 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:01:36,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2021-11-02 23:01:36,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 2359. [2021-11-02 23:01:36,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2359 states, 2330 states have (on average 1.4180257510729615) internal successors, (3304), 2358 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:36,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 3304 transitions. [2021-11-02 23:01:36,832 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 3304 transitions. Word has length 114 [2021-11-02 23:01:36,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:36,832 INFO L470 AbstractCegarLoop]: Abstraction has 2359 states and 3304 transitions. [2021-11-02 23:01:36,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:36,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 3304 transitions. [2021-11-02 23:01:36,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:01:36,834 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:36,834 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:01:36,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-11-02 23:01:36,835 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:01:36,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:36,835 INFO L85 PathProgramCache]: Analyzing trace with hash -2003131297, now seen corresponding path program 1 times [2021-11-02 23:01:36,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:36,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159431844] [2021-11-02 23:01:36,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:36,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:37,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:37,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:37,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159431844] [2021-11-02 23:01:37,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159431844] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:01:37,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:01:37,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:01:37,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132851641] [2021-11-02 23:01:37,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:01:37,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:37,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:01:37,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:01:37,060 INFO L87 Difference]: Start difference. First operand 2359 states and 3304 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) [2021-11-02 23:01:44,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:44,941 INFO L93 Difference]: Finished difference Result 7260 states and 10355 transitions. [2021-11-02 23:01:44,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-02 23:01:44,941 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 [2021-11-02 23:01:44,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:44,949 INFO L225 Difference]: With dead ends: 7260 [2021-11-02 23:01:44,949 INFO L226 Difference]: Without dead ends: 6908 [2021-11-02 23:01:44,952 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 23:01:44,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6908 states. [2021-11-02 23:01:45,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6908 to 2367. [2021-11-02 23:01:45,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2367 states, 2338 states have (on average 1.416595380667237) internal successors, (3312), 2366 states have internal predecessors, (3312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:45,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 3312 transitions. [2021-11-02 23:01:45,667 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 3312 transitions. Word has length 114 [2021-11-02 23:01:45,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:45,668 INFO L470 AbstractCegarLoop]: Abstraction has 2367 states and 3312 transitions. [2021-11-02 23:01:45,668 INFO L471 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) [2021-11-02 23:01:45,668 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 3312 transitions. [2021-11-02 23:01:45,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:01:45,672 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:45,672 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:01:45,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-11-02 23:01:45,672 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:01:45,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:45,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1167481258, now seen corresponding path program 1 times [2021-11-02 23:01:45,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:45,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748490764] [2021-11-02 23:01:45,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:45,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:45,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:45,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:45,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748490764] [2021-11-02 23:01:45,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748490764] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:01:45,917 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:01:45,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:01:45,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688723878] [2021-11-02 23:01:45,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:01:45,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:45,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:01:45,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:01:45,919 INFO L87 Difference]: Start difference. First operand 2367 states and 3312 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) [2021-11-02 23:01:53,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:53,295 INFO L93 Difference]: Finished difference Result 7240 states and 10329 transitions. [2021-11-02 23:01:53,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-02 23:01:53,295 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 [2021-11-02 23:01:53,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:53,301 INFO L225 Difference]: With dead ends: 7240 [2021-11-02 23:01:53,301 INFO L226 Difference]: Without dead ends: 6898 [2021-11-02 23:01:53,303 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 23:01:53,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6898 states. [2021-11-02 23:01:53,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6898 to 2371. [2021-11-02 23:01:53,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2371 states, 2342 states have (on average 1.4158838599487618) internal successors, (3316), 2370 states have internal predecessors, (3316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:53,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 3316 transitions. [2021-11-02 23:01:53,839 INFO L78 Accepts]: Start accepts. Automaton has 2371 states and 3316 transitions. Word has length 114 [2021-11-02 23:01:53,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:53,839 INFO L470 AbstractCegarLoop]: Abstraction has 2371 states and 3316 transitions. [2021-11-02 23:01:53,840 INFO L471 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) [2021-11-02 23:01:53,840 INFO L276 IsEmpty]: Start isEmpty. Operand 2371 states and 3316 transitions. [2021-11-02 23:01:53,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:01:53,841 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:53,841 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:01:53,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-11-02 23:01:53,842 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:01:53,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:53,842 INFO L85 PathProgramCache]: Analyzing trace with hash -340131803, now seen corresponding path program 1 times [2021-11-02 23:01:53,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:53,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046626915] [2021-11-02 23:01:53,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:53,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:53,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:53,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:53,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046626915] [2021-11-02 23:01:53,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046626915] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:01:53,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:01:53,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:01:53,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619262590] [2021-11-02 23:01:53,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:01:53,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:53,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:01:53,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:01:53,968 INFO L87 Difference]: Start difference. First operand 2371 states and 3316 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:57,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:57,575 INFO L93 Difference]: Finished difference Result 4575 states and 6496 transitions. [2021-11-02 23:01:57,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:01:57,576 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-02 23:01:57,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:57,579 INFO L225 Difference]: With dead ends: 4575 [2021-11-02 23:01:57,579 INFO L226 Difference]: Without dead ends: 4234 [2021-11-02 23:01:57,580 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:01:57,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2021-11-02 23:01:58,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 2371. [2021-11-02 23:01:58,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2371 states, 2342 states have (on average 1.4154568744662681) internal successors, (3315), 2370 states have internal predecessors, (3315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:58,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 3315 transitions. [2021-11-02 23:01:58,094 INFO L78 Accepts]: Start accepts. Automaton has 2371 states and 3315 transitions. Word has length 114 [2021-11-02 23:01:58,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:58,094 INFO L470 AbstractCegarLoop]: Abstraction has 2371 states and 3315 transitions. [2021-11-02 23:01:58,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:58,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2371 states and 3315 transitions. [2021-11-02 23:01:58,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:01:58,096 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:58,096 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:01:58,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-11-02 23:01:58,096 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:01:58,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:58,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1608318294, now seen corresponding path program 1 times [2021-11-02 23:01:58,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:58,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327322347] [2021-11-02 23:01:58,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:58,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:58,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:58,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:58,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327322347] [2021-11-02 23:01:58,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327322347] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:01:58,276 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:01:58,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:01:58,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790752236] [2021-11-02 23:01:58,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:01:58,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:58,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:01:58,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:01:58,277 INFO L87 Difference]: Start difference. First operand 2371 states and 3315 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) [2021-11-02 23:02:04,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:04,427 INFO L93 Difference]: Finished difference Result 6592 states and 9429 transitions. [2021-11-02 23:02:04,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:02:04,427 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 [2021-11-02 23:02:04,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:04,433 INFO L225 Difference]: With dead ends: 6592 [2021-11-02 23:02:04,433 INFO L226 Difference]: Without dead ends: 6242 [2021-11-02 23:02:04,434 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:02:04,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6242 states. [2021-11-02 23:02:04,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6242 to 2379. [2021-11-02 23:02:04,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2379 states, 2350 states have (on average 1.4140425531914893) internal successors, (3323), 2378 states have internal predecessors, (3323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:04,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 3323 transitions. [2021-11-02 23:02:04,942 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 3323 transitions. Word has length 114 [2021-11-02 23:02:04,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:04,942 INFO L470 AbstractCegarLoop]: Abstraction has 2379 states and 3323 transitions. [2021-11-02 23:02:04,943 INFO L471 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) [2021-11-02 23:02:04,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 3323 transitions. [2021-11-02 23:02:04,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:02:04,945 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:04,945 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:02:04,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-11-02 23:02:04,945 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:02:04,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:04,946 INFO L85 PathProgramCache]: Analyzing trace with hash 2040385468, now seen corresponding path program 1 times [2021-11-02 23:02:04,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:04,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076080848] [2021-11-02 23:02:04,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:04,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:05,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:05,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:05,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076080848] [2021-11-02 23:02:05,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076080848] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:02:05,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:02:05,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:02:05,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575125456] [2021-11-02 23:02:05,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:02:05,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:05,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:02:05,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:02:05,100 INFO L87 Difference]: Start difference. First operand 2379 states and 3323 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:08,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:08,827 INFO L93 Difference]: Finished difference Result 4582 states and 6503 transitions. [2021-11-02 23:02:08,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:02:08,828 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-02 23:02:08,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:08,831 INFO L225 Difference]: With dead ends: 4582 [2021-11-02 23:02:08,831 INFO L226 Difference]: Without dead ends: 4234 [2021-11-02 23:02:08,832 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:02:08,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2021-11-02 23:02:09,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 2379. [2021-11-02 23:02:09,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2379 states, 2350 states have (on average 1.4131914893617021) internal successors, (3321), 2378 states have internal predecessors, (3321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:09,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 3321 transitions. [2021-11-02 23:02:09,337 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 3321 transitions. Word has length 114 [2021-11-02 23:02:09,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:09,337 INFO L470 AbstractCegarLoop]: Abstraction has 2379 states and 3321 transitions. [2021-11-02 23:02:09,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:09,337 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 3321 transitions. [2021-11-02 23:02:09,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:02:09,339 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:09,339 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:02:09,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-11-02 23:02:09,339 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:02:09,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:09,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1422313079, now seen corresponding path program 1 times [2021-11-02 23:02:09,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:09,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946009895] [2021-11-02 23:02:09,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:09,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:09,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:09,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:09,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946009895] [2021-11-02 23:02:09,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946009895] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:02:09,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:02:09,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:02:09,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924329942] [2021-11-02 23:02:09,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:02:09,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:09,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:02:09,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:02:09,516 INFO L87 Difference]: Start difference. First operand 2379 states and 3321 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) [2021-11-02 23:02:15,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:15,762 INFO L93 Difference]: Finished difference Result 6574 states and 9401 transitions. [2021-11-02 23:02:15,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:02:15,763 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 [2021-11-02 23:02:15,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:15,769 INFO L225 Difference]: With dead ends: 6574 [2021-11-02 23:02:15,769 INFO L226 Difference]: Without dead ends: 6233 [2021-11-02 23:02:15,770 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:02:15,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6233 states. [2021-11-02 23:02:16,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6233 to 2383. [2021-11-02 23:02:16,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2383 states, 2354 states have (on average 1.4124893797790994) internal successors, (3325), 2382 states have internal predecessors, (3325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:16,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2383 states to 2383 states and 3325 transitions. [2021-11-02 23:02:16,315 INFO L78 Accepts]: Start accepts. Automaton has 2383 states and 3325 transitions. Word has length 114 [2021-11-02 23:02:16,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:16,315 INFO L470 AbstractCegarLoop]: Abstraction has 2383 states and 3325 transitions. [2021-11-02 23:02:16,315 INFO L471 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) [2021-11-02 23:02:16,315 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states and 3325 transitions. [2021-11-02 23:02:16,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:02:16,317 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:16,317 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:02:16,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-11-02 23:02:16,318 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:02:16,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:16,318 INFO L85 PathProgramCache]: Analyzing trace with hash -731468516, now seen corresponding path program 1 times [2021-11-02 23:02:16,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:16,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232955430] [2021-11-02 23:02:16,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:16,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:16,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:16,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:16,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232955430] [2021-11-02 23:02:16,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232955430] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:02:16,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:02:16,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:02:16,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467585523] [2021-11-02 23:02:16,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:02:16,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:16,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:02:16,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:02:16,496 INFO L87 Difference]: Start difference. First operand 2383 states and 3325 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) [2021-11-02 23:02:23,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:23,942 INFO L93 Difference]: Finished difference Result 7248 states and 10328 transitions. [2021-11-02 23:02:23,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-02 23:02:23,942 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 [2021-11-02 23:02:23,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:23,948 INFO L225 Difference]: With dead ends: 7248 [2021-11-02 23:02:23,948 INFO L226 Difference]: Without dead ends: 6902 [2021-11-02 23:02:23,950 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 23:02:23,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6902 states. [2021-11-02 23:02:24,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6902 to 2387. [2021-11-02 23:02:24,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2387 states, 2358 states have (on average 1.4117896522476676) internal successors, (3329), 2386 states have internal predecessors, (3329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:24,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2387 states to 2387 states and 3329 transitions. [2021-11-02 23:02:24,539 INFO L78 Accepts]: Start accepts. Automaton has 2387 states and 3329 transitions. Word has length 114 [2021-11-02 23:02:24,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:24,539 INFO L470 AbstractCegarLoop]: Abstraction has 2387 states and 3329 transitions. [2021-11-02 23:02:24,539 INFO L471 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) [2021-11-02 23:02:24,539 INFO L276 IsEmpty]: Start isEmpty. Operand 2387 states and 3329 transitions. [2021-11-02 23:02:24,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:02:24,541 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:24,541 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:02:24,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-11-02 23:02:24,541 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:02:24,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:24,542 INFO L85 PathProgramCache]: Analyzing trace with hash -95181654, now seen corresponding path program 1 times [2021-11-02 23:02:24,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:24,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850755145] [2021-11-02 23:02:24,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:24,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:24,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:24,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:24,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850755145] [2021-11-02 23:02:24,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850755145] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:02:24,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:02:24,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:02:24,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097172400] [2021-11-02 23:02:24,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:02:24,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:24,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:02:24,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:02:24,674 INFO L87 Difference]: Start difference. First operand 2387 states and 3329 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:28,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:28,217 INFO L93 Difference]: Finished difference Result 4576 states and 6490 transitions. [2021-11-02 23:02:28,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:02:28,218 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-02 23:02:28,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:28,221 INFO L225 Difference]: With dead ends: 4576 [2021-11-02 23:02:28,221 INFO L226 Difference]: Without dead ends: 4234 [2021-11-02 23:02:28,222 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:02:28,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2021-11-02 23:02:28,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 2387. [2021-11-02 23:02:28,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2387 states, 2358 states have (on average 1.4113655640373197) internal successors, (3328), 2386 states have internal predecessors, (3328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:28,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2387 states to 2387 states and 3328 transitions. [2021-11-02 23:02:28,799 INFO L78 Accepts]: Start accepts. Automaton has 2387 states and 3328 transitions. Word has length 114 [2021-11-02 23:02:28,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:28,799 INFO L470 AbstractCegarLoop]: Abstraction has 2387 states and 3328 transitions. [2021-11-02 23:02:28,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:28,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2387 states and 3328 transitions. [2021-11-02 23:02:28,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:02:28,802 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:28,802 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:02:28,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-11-02 23:02:28,803 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:02:28,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:28,803 INFO L85 PathProgramCache]: Analyzing trace with hash -690725463, now seen corresponding path program 1 times [2021-11-02 23:02:28,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:28,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279029755] [2021-11-02 23:02:28,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:28,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:29,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:29,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:29,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279029755] [2021-11-02 23:02:29,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279029755] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:02:29,027 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:02:29,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-02 23:02:29,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379965715] [2021-11-02 23:02:29,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-02 23:02:29,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:29,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-02 23:02:29,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-02 23:02:29,028 INFO L87 Difference]: Start difference. First operand 2387 states and 3328 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) [2021-11-02 23:02:35,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:35,038 INFO L93 Difference]: Finished difference Result 4817 states and 6796 transitions. [2021-11-02 23:02:35,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:02:35,039 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 [2021-11-02 23:02:35,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:35,042 INFO L225 Difference]: With dead ends: 4817 [2021-11-02 23:02:35,042 INFO L226 Difference]: Without dead ends: 4449 [2021-11-02 23:02:35,043 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-02 23:02:35,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4449 states. [2021-11-02 23:02:35,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4449 to 2387. [2021-11-02 23:02:35,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2387 states, 2358 states have (on average 1.410941475826972) internal successors, (3327), 2386 states have internal predecessors, (3327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:35,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2387 states to 2387 states and 3327 transitions. [2021-11-02 23:02:35,595 INFO L78 Accepts]: Start accepts. Automaton has 2387 states and 3327 transitions. Word has length 114 [2021-11-02 23:02:35,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:35,595 INFO L470 AbstractCegarLoop]: Abstraction has 2387 states and 3327 transitions. [2021-11-02 23:02:35,595 INFO L471 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) [2021-11-02 23:02:35,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2387 states and 3327 transitions. [2021-11-02 23:02:35,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:02:35,596 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:35,597 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:02:35,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-11-02 23:02:35,597 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:02:35,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:35,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1099570691, now seen corresponding path program 1 times [2021-11-02 23:02:35,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:35,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434151148] [2021-11-02 23:02:35,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:35,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:35,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:35,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:35,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434151148] [2021-11-02 23:02:35,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434151148] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:02:35,722 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:02:35,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:02:35,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963943078] [2021-11-02 23:02:35,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:02:35,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:35,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:02:35,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:02:35,723 INFO L87 Difference]: Start difference. First operand 2387 states and 3327 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:39,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:39,244 INFO L93 Difference]: Finished difference Result 4586 states and 6500 transitions. [2021-11-02 23:02:39,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:02:39,244 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-02 23:02:39,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:39,247 INFO L225 Difference]: With dead ends: 4586 [2021-11-02 23:02:39,247 INFO L226 Difference]: Without dead ends: 4234 [2021-11-02 23:02:39,248 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:02:39,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2021-11-02 23:02:39,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 2387. [2021-11-02 23:02:39,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2387 states, 2358 states have (on average 1.4100932994062765) internal successors, (3325), 2386 states have internal predecessors, (3325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:39,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2387 states to 2387 states and 3325 transitions. [2021-11-02 23:02:39,838 INFO L78 Accepts]: Start accepts. Automaton has 2387 states and 3325 transitions. Word has length 114 [2021-11-02 23:02:39,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:39,838 INFO L470 AbstractCegarLoop]: Abstraction has 2387 states and 3325 transitions. [2021-11-02 23:02:39,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:39,839 INFO L276 IsEmpty]: Start isEmpty. Operand 2387 states and 3325 transitions. [2021-11-02 23:02:39,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:02:39,840 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:39,840 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:02:39,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-11-02 23:02:39,840 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:02:39,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:39,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1555279999, now seen corresponding path program 1 times [2021-11-02 23:02:39,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:39,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338703271] [2021-11-02 23:02:39,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:39,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:39,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:39,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:39,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338703271] [2021-11-02 23:02:39,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338703271] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:02:39,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:02:39,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:02:39,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595175309] [2021-11-02 23:02:39,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:02:39,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:39,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:02:39,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:02:39,959 INFO L87 Difference]: Start difference. First operand 2387 states and 3325 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:43,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:43,428 INFO L93 Difference]: Finished difference Result 4584 states and 6497 transitions. [2021-11-02 23:02:43,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:02:43,428 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-02 23:02:43,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:43,431 INFO L225 Difference]: With dead ends: 4584 [2021-11-02 23:02:43,432 INFO L226 Difference]: Without dead ends: 4234 [2021-11-02 23:02:43,433 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:02:43,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2021-11-02 23:02:44,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 2387. [2021-11-02 23:02:44,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2387 states, 2358 states have (on average 1.409245122985581) internal successors, (3323), 2386 states have internal predecessors, (3323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:44,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2387 states to 2387 states and 3323 transitions. [2021-11-02 23:02:44,024 INFO L78 Accepts]: Start accepts. Automaton has 2387 states and 3323 transitions. Word has length 114 [2021-11-02 23:02:44,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:44,024 INFO L470 AbstractCegarLoop]: Abstraction has 2387 states and 3323 transitions. [2021-11-02 23:02:44,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:44,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2387 states and 3323 transitions. [2021-11-02 23:02:44,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:02:44,026 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:44,026 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:02:44,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-11-02 23:02:44,026 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:02:44,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:44,027 INFO L85 PathProgramCache]: Analyzing trace with hash 2103617902, now seen corresponding path program 1 times [2021-11-02 23:02:44,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:44,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412847766] [2021-11-02 23:02:44,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:44,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:44,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:44,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:44,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412847766] [2021-11-02 23:02:44,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412847766] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:02:44,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:02:44,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:02:44,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872484587] [2021-11-02 23:02:44,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:02:44,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:44,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:02:44,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:02:44,181 INFO L87 Difference]: Start difference. First operand 2387 states and 3323 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) [2021-11-02 23:02:51,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:51,199 INFO L93 Difference]: Finished difference Result 6596 states and 9419 transitions. [2021-11-02 23:02:51,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:02:51,199 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 [2021-11-02 23:02:51,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:51,204 INFO L225 Difference]: With dead ends: 6596 [2021-11-02 23:02:51,205 INFO L226 Difference]: Without dead ends: 6244 [2021-11-02 23:02:51,206 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:02:51,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6244 states. [2021-11-02 23:02:51,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6244 to 2395. [2021-11-02 23:02:51,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2395 states, 2366 states have (on average 1.407861369399831) internal successors, (3331), 2394 states have internal predecessors, (3331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:51,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2395 states to 2395 states and 3331 transitions. [2021-11-02 23:02:51,794 INFO L78 Accepts]: Start accepts. Automaton has 2395 states and 3331 transitions. Word has length 114 [2021-11-02 23:02:51,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:51,794 INFO L470 AbstractCegarLoop]: Abstraction has 2395 states and 3331 transitions. [2021-11-02 23:02:51,794 INFO L471 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) [2021-11-02 23:02:51,794 INFO L276 IsEmpty]: Start isEmpty. Operand 2395 states and 3331 transitions. [2021-11-02 23:02:51,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:02:51,797 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:51,798 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:02:51,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-11-02 23:02:51,798 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:02:51,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:51,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1354396539, now seen corresponding path program 1 times [2021-11-02 23:02:51,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:51,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357722266] [2021-11-02 23:02:51,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:51,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:51,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:51,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:51,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357722266] [2021-11-02 23:02:51,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357722266] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:02:51,967 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:02:51,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:02:51,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3283706] [2021-11-02 23:02:51,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:02:51,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:51,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:02:51,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:02:51,968 INFO L87 Difference]: Start difference. First operand 2395 states and 3331 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) [2021-11-02 23:02:58,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:58,787 INFO L93 Difference]: Finished difference Result 6576 states and 9393 transitions. [2021-11-02 23:02:58,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:02:58,788 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 [2021-11-02 23:02:58,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:58,793 INFO L225 Difference]: With dead ends: 6576 [2021-11-02 23:02:58,793 INFO L226 Difference]: Without dead ends: 6234 [2021-11-02 23:02:58,794 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:02:58,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6234 states. [2021-11-02 23:02:59,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6234 to 2399. [2021-11-02 23:02:59,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2399 states, 2370 states have (on average 1.4071729957805907) internal successors, (3335), 2398 states have internal predecessors, (3335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:59,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 3335 transitions. [2021-11-02 23:02:59,428 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 3335 transitions. Word has length 114 [2021-11-02 23:02:59,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:59,428 INFO L470 AbstractCegarLoop]: Abstraction has 2399 states and 3335 transitions. [2021-11-02 23:02:59,428 INFO L471 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) [2021-11-02 23:02:59,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 3335 transitions. [2021-11-02 23:02:59,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:02:59,430 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:59,430 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:02:59,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-11-02 23:02:59,430 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:02:59,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:59,430 INFO L85 PathProgramCache]: Analyzing trace with hash -369561292, now seen corresponding path program 1 times [2021-11-02 23:02:59,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:59,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423365059] [2021-11-02 23:02:59,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:59,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:59,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:59,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:59,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423365059] [2021-11-02 23:02:59,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423365059] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:02:59,555 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:02:59,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:02:59,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374935034] [2021-11-02 23:02:59,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:02:59,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:59,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:02:59,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:02:59,557 INFO L87 Difference]: Start difference. First operand 2399 states and 3335 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:03,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:03:03,160 INFO L93 Difference]: Finished difference Result 4575 states and 6480 transitions. [2021-11-02 23:03:03,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:03:03,165 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-02 23:03:03,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:03:03,169 INFO L225 Difference]: With dead ends: 4575 [2021-11-02 23:03:03,169 INFO L226 Difference]: Without dead ends: 4234 [2021-11-02 23:03:03,170 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:03:03,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2021-11-02 23:03:03,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 2399. [2021-11-02 23:03:03,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2399 states, 2370 states have (on average 1.4067510548523208) internal successors, (3334), 2398 states have internal predecessors, (3334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:03,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 3334 transitions. [2021-11-02 23:03:03,766 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 3334 transitions. Word has length 114 [2021-11-02 23:03:03,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:03:03,766 INFO L470 AbstractCegarLoop]: Abstraction has 2399 states and 3334 transitions. [2021-11-02 23:03:03,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:03,766 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 3334 transitions. [2021-11-02 23:03:03,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:03:03,768 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:03:03,768 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:03:03,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-11-02 23:03:03,768 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:03:03,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:03:03,768 INFO L85 PathProgramCache]: Analyzing trace with hash -2138520516, now seen corresponding path program 1 times [2021-11-02 23:03:03,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:03:03,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302212052] [2021-11-02 23:03:03,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:03:03,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:03:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:03,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:03,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:03:03,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302212052] [2021-11-02 23:03:03,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302212052] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:03:03,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:03:03,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:03:03,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71307794] [2021-11-02 23:03:03,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:03:03,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:03:03,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:03:03,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:03:03,894 INFO L87 Difference]: Start difference. First operand 2399 states and 3334 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:07,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:03:07,708 INFO L93 Difference]: Finished difference Result 4233 states and 5983 transitions. [2021-11-02 23:03:07,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-02 23:03:07,708 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-02 23:03:07,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:03:07,711 INFO L225 Difference]: With dead ends: 4233 [2021-11-02 23:03:07,711 INFO L226 Difference]: Without dead ends: 3843 [2021-11-02 23:03:07,712 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:03:07,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3843 states. [2021-11-02 23:03:08,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3843 to 2399. [2021-11-02 23:03:08,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2399 states, 2370 states have (on average 1.4059071729957806) internal successors, (3332), 2398 states have internal predecessors, (3332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:08,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 3332 transitions. [2021-11-02 23:03:08,308 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 3332 transitions. Word has length 114 [2021-11-02 23:03:08,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:03:08,308 INFO L470 AbstractCegarLoop]: Abstraction has 2399 states and 3332 transitions. [2021-11-02 23:03:08,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:08,308 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 3332 transitions. [2021-11-02 23:03:08,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:03:08,310 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:03:08,310 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:03:08,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-11-02 23:03:08,311 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:03:08,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:03:08,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1747601552, now seen corresponding path program 1 times [2021-11-02 23:03:08,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:03:08,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94699157] [2021-11-02 23:03:08,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:03:08,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:03:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:08,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:08,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:03:08,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94699157] [2021-11-02 23:03:08,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94699157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:03:08,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:03:08,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:03:08,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906122006] [2021-11-02 23:03:08,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:03:08,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:03:08,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:03:08,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:03:08,427 INFO L87 Difference]: Start difference. First operand 2399 states and 3332 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:11,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:03:11,986 INFO L93 Difference]: Finished difference Result 4590 states and 6496 transitions. [2021-11-02 23:03:11,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:03:11,986 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-02 23:03:11,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:03:11,989 INFO L225 Difference]: With dead ends: 4590 [2021-11-02 23:03:11,990 INFO L226 Difference]: Without dead ends: 4234 [2021-11-02 23:03:11,990 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:03:11,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2021-11-02 23:03:12,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 2399. [2021-11-02 23:03:12,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2399 states, 2370 states have (on average 1.4050632911392404) internal successors, (3330), 2398 states have internal predecessors, (3330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:12,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 3330 transitions. [2021-11-02 23:03:12,590 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 3330 transitions. Word has length 114 [2021-11-02 23:03:12,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:03:12,591 INFO L470 AbstractCegarLoop]: Abstraction has 2399 states and 3330 transitions. [2021-11-02 23:03:12,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:12,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 3330 transitions. [2021-11-02 23:03:12,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:03:12,592 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:03:12,592 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:03:12,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-11-02 23:03:12,593 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:03:12,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:03:12,593 INFO L85 PathProgramCache]: Analyzing trace with hash -187578806, now seen corresponding path program 1 times [2021-11-02 23:03:12,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:03:12,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895795002] [2021-11-02 23:03:12,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:03:12,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:03:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:12,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:12,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:03:12,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895795002] [2021-11-02 23:03:12,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895795002] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:03:12,760 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:03:12,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:03:12,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501473757] [2021-11-02 23:03:12,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:03:12,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:03:12,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:03:12,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:03:12,762 INFO L87 Difference]: Start difference. First operand 2399 states and 3330 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) [2021-11-02 23:03:20,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:03:20,729 INFO L93 Difference]: Finished difference Result 7644 states and 10914 transitions. [2021-11-02 23:03:20,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:03:20,729 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 [2021-11-02 23:03:20,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:03:20,736 INFO L225 Difference]: With dead ends: 7644 [2021-11-02 23:03:20,736 INFO L226 Difference]: Without dead ends: 7180 [2021-11-02 23:03:20,737 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:03:20,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7180 states. [2021-11-02 23:03:21,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7180 to 2407. [2021-11-02 23:03:21,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 2378 states have (on average 1.4037005887300251) internal successors, (3338), 2406 states have internal predecessors, (3338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:21,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 3338 transitions. [2021-11-02 23:03:21,376 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 3338 transitions. Word has length 114 [2021-11-02 23:03:21,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:03:21,376 INFO L470 AbstractCegarLoop]: Abstraction has 2407 states and 3338 transitions. [2021-11-02 23:03:21,376 INFO L471 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) [2021-11-02 23:03:21,377 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 3338 transitions. [2021-11-02 23:03:21,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:03:21,378 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:03:21,378 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:03:21,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-11-02 23:03:21,379 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:03:21,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:03:21,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1485736079, now seen corresponding path program 1 times [2021-11-02 23:03:21,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:03:21,379 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447849151] [2021-11-02 23:03:21,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:03:21,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:03:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:21,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:21,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:03:21,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447849151] [2021-11-02 23:03:21,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447849151] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:03:21,496 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:03:21,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:03:21,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672737530] [2021-11-02 23:03:21,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:03:21,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:03:21,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:03:21,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:03:21,497 INFO L87 Difference]: Start difference. First operand 2407 states and 3338 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:25,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:03:25,290 INFO L93 Difference]: Finished difference Result 4592 states and 6495 transitions. [2021-11-02 23:03:25,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:03:25,291 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-02 23:03:25,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:03:25,294 INFO L225 Difference]: With dead ends: 4592 [2021-11-02 23:03:25,294 INFO L226 Difference]: Without dead ends: 4242 [2021-11-02 23:03:25,295 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:03:25,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4242 states. [2021-11-02 23:03:25,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4242 to 2407. [2021-11-02 23:03:25,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 2378 states have (on average 1.4028595458368376) internal successors, (3336), 2406 states have internal predecessors, (3336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:25,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 3336 transitions. [2021-11-02 23:03:25,921 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 3336 transitions. Word has length 114 [2021-11-02 23:03:25,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:03:25,921 INFO L470 AbstractCegarLoop]: Abstraction has 2407 states and 3336 transitions. [2021-11-02 23:03:25,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:25,921 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 3336 transitions. [2021-11-02 23:03:25,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:03:25,923 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:03:25,923 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:03:25,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-11-02 23:03:25,924 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:03:25,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:03:25,924 INFO L85 PathProgramCache]: Analyzing trace with hash -2122503553, now seen corresponding path program 1 times [2021-11-02 23:03:25,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:03:25,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032008775] [2021-11-02 23:03:25,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:03:25,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:03:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:26,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:26,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:03:26,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032008775] [2021-11-02 23:03:26,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032008775] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:03:26,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:03:26,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:03:26,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308062866] [2021-11-02 23:03:26,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:03:26,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:03:26,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:03:26,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:03:26,100 INFO L87 Difference]: Start difference. First operand 2407 states and 3336 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) [2021-11-02 23:03:33,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:03:33,193 INFO L93 Difference]: Finished difference Result 6612 states and 9429 transitions. [2021-11-02 23:03:33,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:03:33,193 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 [2021-11-02 23:03:33,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:03:33,198 INFO L225 Difference]: With dead ends: 6612 [2021-11-02 23:03:33,199 INFO L226 Difference]: Without dead ends: 6256 [2021-11-02 23:03:33,200 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:03:33,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6256 states. [2021-11-02 23:03:33,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6256 to 2415. [2021-11-02 23:03:33,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2415 states, 2386 states have (on average 1.4015088013411567) internal successors, (3344), 2414 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:33,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2415 states to 2415 states and 3344 transitions. [2021-11-02 23:03:33,861 INFO L78 Accepts]: Start accepts. Automaton has 2415 states and 3344 transitions. Word has length 114 [2021-11-02 23:03:33,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:03:33,861 INFO L470 AbstractCegarLoop]: Abstraction has 2415 states and 3344 transitions. [2021-11-02 23:03:33,861 INFO L471 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) [2021-11-02 23:03:33,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2415 states and 3344 transitions. [2021-11-02 23:03:33,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:03:33,864 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:03:33,864 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:03:33,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-11-02 23:03:33,864 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:03:33,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:03:33,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1804361568, now seen corresponding path program 1 times [2021-11-02 23:03:33,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:03:33,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190013574] [2021-11-02 23:03:33,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:03:33,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:03:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:33,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:33,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:03:33,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190013574] [2021-11-02 23:03:33,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190013574] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:03:33,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:03:33,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:03:33,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947878878] [2021-11-02 23:03:33,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:03:33,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:03:33,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:03:33,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:03:33,984 INFO L87 Difference]: Start difference. First operand 2415 states and 3344 transitions. Second operand has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:38,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:03:38,122 INFO L93 Difference]: Finished difference Result 4618 states and 6526 transitions. [2021-11-02 23:03:38,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:03:38,122 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-02 23:03:38,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:03:38,126 INFO L225 Difference]: With dead ends: 4618 [2021-11-02 23:03:38,126 INFO L226 Difference]: Without dead ends: 4242 [2021-11-02 23:03:38,127 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:03:38,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4242 states. [2021-11-02 23:03:38,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4242 to 2415. [2021-11-02 23:03:38,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2415 states, 2386 states have (on average 1.3998323554065382) internal successors, (3340), 2414 states have internal predecessors, (3340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:38,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2415 states to 2415 states and 3340 transitions. [2021-11-02 23:03:38,827 INFO L78 Accepts]: Start accepts. Automaton has 2415 states and 3340 transitions. Word has length 114 [2021-11-02 23:03:38,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:03:38,827 INFO L470 AbstractCegarLoop]: Abstraction has 2415 states and 3340 transitions. [2021-11-02 23:03:38,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.666666666666666) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:38,827 INFO L276 IsEmpty]: Start isEmpty. Operand 2415 states and 3340 transitions. [2021-11-02 23:03:38,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-02 23:03:38,829 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:03:38,829 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:03:38,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-11-02 23:03:38,829 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:03:38,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:03:38,830 INFO L85 PathProgramCache]: Analyzing trace with hash -2081760500, now seen corresponding path program 1 times [2021-11-02 23:03:38,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:03:38,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263747521] [2021-11-02 23:03:38,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:03:38,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:03:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:39,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:39,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:03:39,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263747521] [2021-11-02 23:03:39,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263747521] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:03:39,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:03:39,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-02 23:03:39,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619326443] [2021-11-02 23:03:39,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-02 23:03:39,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:03:39,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-02 23:03:39,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-02 23:03:39,044 INFO L87 Difference]: Start difference. First operand 2415 states and 3340 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) [2021-11-02 23:03:46,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:03:46,043 INFO L93 Difference]: Finished difference Result 4889 states and 6878 transitions. [2021-11-02 23:03:46,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:03:46,043 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 [2021-11-02 23:03:46,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:03:46,048 INFO L225 Difference]: With dead ends: 4889 [2021-11-02 23:03:46,048 INFO L226 Difference]: Without dead ends: 4499 [2021-11-02 23:03:46,049 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-02 23:03:46,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4499 states. [2021-11-02 23:03:46,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4499 to 2415. [2021-11-02 23:03:46,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2415 states, 2386 states have (on average 1.3989941324392288) internal successors, (3338), 2414 states have internal predecessors, (3338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:46,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2415 states to 2415 states and 3338 transitions. [2021-11-02 23:03:46,823 INFO L78 Accepts]: Start accepts. Automaton has 2415 states and 3338 transitions. Word has length 114 [2021-11-02 23:03:46,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:03:46,823 INFO L470 AbstractCegarLoop]: Abstraction has 2415 states and 3338 transitions. [2021-11-02 23:03:46,823 INFO L471 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) [2021-11-02 23:03:46,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2415 states and 3338 transitions. [2021-11-02 23:03:46,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:03:46,826 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:03:46,827 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:03:46,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-11-02 23:03:46,827 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:03:46,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:03:46,828 INFO L85 PathProgramCache]: Analyzing trace with hash 775997827, now seen corresponding path program 1 times [2021-11-02 23:03:46,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:03:46,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908069682] [2021-11-02 23:03:46,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:03:46,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:03:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:46,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:46,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:03:46,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908069682] [2021-11-02 23:03:46,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908069682] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:03:46,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:03:46,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:03:46,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967752994] [2021-11-02 23:03:46,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:03:46,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:03:46,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:03:46,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:03:46,981 INFO L87 Difference]: Start difference. First operand 2415 states and 3338 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:51,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:03:51,665 INFO L93 Difference]: Finished difference Result 4249 states and 5987 transitions. [2021-11-02 23:03:51,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-02 23:03:51,665 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-02 23:03:51,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:03:51,668 INFO L225 Difference]: With dead ends: 4249 [2021-11-02 23:03:51,669 INFO L226 Difference]: Without dead ends: 3859 [2021-11-02 23:03:51,669 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:03:51,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3859 states. [2021-11-02 23:03:52,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3859 to 2415. [2021-11-02 23:03:52,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2415 states, 2386 states have (on average 1.3981559094719196) internal successors, (3336), 2414 states have internal predecessors, (3336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:52,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2415 states to 2415 states and 3336 transitions. [2021-11-02 23:03:52,388 INFO L78 Accepts]: Start accepts. Automaton has 2415 states and 3336 transitions. Word has length 115 [2021-11-02 23:03:52,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:03:52,388 INFO L470 AbstractCegarLoop]: Abstraction has 2415 states and 3336 transitions. [2021-11-02 23:03:52,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:52,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2415 states and 3336 transitions. [2021-11-02 23:03:52,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:03:52,390 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:03:52,391 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:03:52,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-11-02 23:03:52,391 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:03:52,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:03:52,391 INFO L85 PathProgramCache]: Analyzing trace with hash 352654659, now seen corresponding path program 1 times [2021-11-02 23:03:52,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:03:52,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172283883] [2021-11-02 23:03:52,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:03:52,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:03:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:52,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:52,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:03:52,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172283883] [2021-11-02 23:03:52,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172283883] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:03:52,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:03:52,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:03:52,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519218180] [2021-11-02 23:03:52,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:03:52,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:03:52,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:03:52,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:03:52,520 INFO L87 Difference]: Start difference. First operand 2415 states and 3336 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:56,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:03:56,858 INFO L93 Difference]: Finished difference Result 4598 states and 6490 transitions. [2021-11-02 23:03:56,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:03:56,859 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-02 23:03:56,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:03:56,862 INFO L225 Difference]: With dead ends: 4598 [2021-11-02 23:03:56,862 INFO L226 Difference]: Without dead ends: 4242 [2021-11-02 23:03:56,863 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:03:56,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4242 states. [2021-11-02 23:03:57,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4242 to 2407. [2021-11-02 23:03:57,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 2378 states have (on average 1.3986543313709) internal successors, (3326), 2406 states have internal predecessors, (3326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:57,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 3326 transitions. [2021-11-02 23:03:57,561 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 3326 transitions. Word has length 115 [2021-11-02 23:03:57,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:03:57,561 INFO L470 AbstractCegarLoop]: Abstraction has 2407 states and 3326 transitions. [2021-11-02 23:03:57,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:57,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 3326 transitions. [2021-11-02 23:03:57,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:03:57,563 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:03:57,563 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:03:57,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-11-02 23:03:57,564 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:03:57,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:03:57,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1953979380, now seen corresponding path program 1 times [2021-11-02 23:03:57,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:03:57,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591096835] [2021-11-02 23:03:57,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:03:57,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:03:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:57,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:57,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:03:57,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591096835] [2021-11-02 23:03:57,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591096835] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:03:57,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:03:57,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:03:57,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868843238] [2021-11-02 23:03:57,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:03:57,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:03:57,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:03:57,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:03:57,678 INFO L87 Difference]: Start difference. First operand 2407 states and 3326 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:01,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:04:01,717 INFO L93 Difference]: Finished difference Result 4618 states and 6516 transitions. [2021-11-02 23:04:01,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:04:01,717 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-02 23:04:01,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:04:01,721 INFO L225 Difference]: With dead ends: 4618 [2021-11-02 23:04:01,721 INFO L226 Difference]: Without dead ends: 4242 [2021-11-02 23:04:01,722 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:04:01,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4242 states. [2021-11-02 23:04:02,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4242 to 2391. [2021-11-02 23:04:02,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2391 states, 2362 states have (on average 1.3996613039796781) internal successors, (3306), 2390 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:02,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2391 states to 2391 states and 3306 transitions. [2021-11-02 23:04:02,425 INFO L78 Accepts]: Start accepts. Automaton has 2391 states and 3306 transitions. Word has length 115 [2021-11-02 23:04:02,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:04:02,425 INFO L470 AbstractCegarLoop]: Abstraction has 2391 states and 3306 transitions. [2021-11-02 23:04:02,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:02,426 INFO L276 IsEmpty]: Start isEmpty. Operand 2391 states and 3306 transitions. [2021-11-02 23:04:02,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:04:02,427 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:04:02,428 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:04:02,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-11-02 23:04:02,428 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:04:02,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:04:02,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1189569746, now seen corresponding path program 1 times [2021-11-02 23:04:02,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:04:02,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283583650] [2021-11-02 23:04:02,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:04:02,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:04:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:04:02,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:02,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:04:02,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283583650] [2021-11-02 23:04:02,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283583650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:04:02,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:04:02,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:04:02,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694868623] [2021-11-02 23:04:02,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:04:02,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:04:02,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:04:02,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:04:02,590 INFO L87 Difference]: Start difference. First operand 2391 states and 3306 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:06,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:04:06,821 INFO L93 Difference]: Finished difference Result 4592 states and 6477 transitions. [2021-11-02 23:04:06,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:04:06,821 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-02 23:04:06,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:04:06,825 INFO L225 Difference]: With dead ends: 4592 [2021-11-02 23:04:06,825 INFO L226 Difference]: Without dead ends: 4242 [2021-11-02 23:04:06,826 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:04:06,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4242 states. [2021-11-02 23:04:07,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4242 to 2383. [2021-11-02 23:04:07,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2383 states, 2354 states have (on average 1.4001699235344096) internal successors, (3296), 2382 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:07,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2383 states to 2383 states and 3296 transitions. [2021-11-02 23:04:07,518 INFO L78 Accepts]: Start accepts. Automaton has 2383 states and 3296 transitions. Word has length 115 [2021-11-02 23:04:07,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:04:07,518 INFO L470 AbstractCegarLoop]: Abstraction has 2383 states and 3296 transitions. [2021-11-02 23:04:07,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:07,518 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states and 3296 transitions. [2021-11-02 23:04:07,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:04:07,519 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:04:07,520 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:04:07,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-11-02 23:04:07,520 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:04:07,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:04:07,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1071105860, now seen corresponding path program 1 times [2021-11-02 23:04:07,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:04:07,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667754640] [2021-11-02 23:04:07,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:04:07,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:04:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:04:07,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:07,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:04:07,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667754640] [2021-11-02 23:04:07,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667754640] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:04:07,622 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:04:07,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:04:07,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391218982] [2021-11-02 23:04:07,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:04:07,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:04:07,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:04:07,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:04:07,623 INFO L87 Difference]: Start difference. First operand 2383 states and 3296 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:11,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:04:11,760 INFO L93 Difference]: Finished difference Result 4594 states and 6476 transitions. [2021-11-02 23:04:11,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:04:11,761 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-02 23:04:11,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:04:11,766 INFO L225 Difference]: With dead ends: 4594 [2021-11-02 23:04:11,766 INFO L226 Difference]: Without dead ends: 4242 [2021-11-02 23:04:11,767 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:04:11,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4242 states. [2021-11-02 23:04:12,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4242 to 2375. [2021-11-02 23:04:12,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2375 states, 2346 states have (on average 1.4006820119352088) internal successors, (3286), 2374 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:12,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2375 states to 2375 states and 3286 transitions. [2021-11-02 23:04:12,513 INFO L78 Accepts]: Start accepts. Automaton has 2375 states and 3286 transitions. Word has length 115 [2021-11-02 23:04:12,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:04:12,513 INFO L470 AbstractCegarLoop]: Abstraction has 2375 states and 3286 transitions. [2021-11-02 23:04:12,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:12,513 INFO L276 IsEmpty]: Start isEmpty. Operand 2375 states and 3286 transitions. [2021-11-02 23:04:12,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:04:12,515 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:04:12,515 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:04:12,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-11-02 23:04:12,515 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:04:12,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:04:12,516 INFO L85 PathProgramCache]: Analyzing trace with hash 2072032164, now seen corresponding path program 1 times [2021-11-02 23:04:12,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:04:12,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730717340] [2021-11-02 23:04:12,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:04:12,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:04:12,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:04:12,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:12,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:04:12,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730717340] [2021-11-02 23:04:12,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730717340] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:04:12,636 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:04:12,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:04:12,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157247543] [2021-11-02 23:04:12,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:04:12,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:04:12,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:04:12,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:04:12,638 INFO L87 Difference]: Start difference. First operand 2375 states and 3286 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:16,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:04:16,770 INFO L93 Difference]: Finished difference Result 4584 states and 6462 transitions. [2021-11-02 23:04:16,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:04:16,771 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-02 23:04:16,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:04:16,774 INFO L225 Difference]: With dead ends: 4584 [2021-11-02 23:04:16,774 INFO L226 Difference]: Without dead ends: 4242 [2021-11-02 23:04:16,775 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:04:16,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4242 states. [2021-11-02 23:04:17,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4242 to 2371. [2021-11-02 23:04:17,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2371 states, 2342 states have (on average 1.400939368061486) internal successors, (3281), 2370 states have internal predecessors, (3281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:17,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 3281 transitions. [2021-11-02 23:04:17,510 INFO L78 Accepts]: Start accepts. Automaton has 2371 states and 3281 transitions. Word has length 115 [2021-11-02 23:04:17,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:04:17,510 INFO L470 AbstractCegarLoop]: Abstraction has 2371 states and 3281 transitions. [2021-11-02 23:04:17,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:17,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2371 states and 3281 transitions. [2021-11-02 23:04:17,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:04:17,512 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:04:17,512 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:04:17,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-11-02 23:04:17,513 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:04:17,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:04:17,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1296795181, now seen corresponding path program 1 times [2021-11-02 23:04:17,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:04:17,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972040952] [2021-11-02 23:04:17,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:04:17,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:04:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:04:17,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:17,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:04:17,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972040952] [2021-11-02 23:04:17,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972040952] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:04:17,626 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:04:17,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:04:17,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774974982] [2021-11-02 23:04:17,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:04:17,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:04:17,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:04:17,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:04:17,627 INFO L87 Difference]: Start difference. First operand 2371 states and 3281 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:22,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:04:22,091 INFO L93 Difference]: Finished difference Result 4592 states and 6472 transitions. [2021-11-02 23:04:22,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:04:22,092 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-02 23:04:22,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:04:22,096 INFO L225 Difference]: With dead ends: 4592 [2021-11-02 23:04:22,096 INFO L226 Difference]: Without dead ends: 4242 [2021-11-02 23:04:22,097 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:04:22,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4242 states. [2021-11-02 23:04:22,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4242 to 2363. [2021-11-02 23:04:22,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2363 states, 2334 states have (on average 1.4014567266495288) internal successors, (3271), 2362 states have internal predecessors, (3271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:22,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 3271 transitions. [2021-11-02 23:04:22,830 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 3271 transitions. Word has length 115 [2021-11-02 23:04:22,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:04:22,831 INFO L470 AbstractCegarLoop]: Abstraction has 2363 states and 3271 transitions. [2021-11-02 23:04:22,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:22,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 3271 transitions. [2021-11-02 23:04:22,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:04:22,833 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:04:22,833 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:04:22,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-11-02 23:04:22,833 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:04:22,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:04:22,833 INFO L85 PathProgramCache]: Analyzing trace with hash 662023771, now seen corresponding path program 1 times [2021-11-02 23:04:22,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:04:22,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164602634] [2021-11-02 23:04:22,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:04:22,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:04:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:04:22,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:22,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:04:22,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164602634] [2021-11-02 23:04:22,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164602634] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:04:22,956 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:04:22,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:04:22,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367718303] [2021-11-02 23:04:22,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:04:22,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:04:22,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:04:22,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:04:22,957 INFO L87 Difference]: Start difference. First operand 2363 states and 3271 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:27,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:04:27,371 INFO L93 Difference]: Finished difference Result 4582 states and 6457 transitions. [2021-11-02 23:04:27,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:04:27,371 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-02 23:04:27,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:04:27,375 INFO L225 Difference]: With dead ends: 4582 [2021-11-02 23:04:27,375 INFO L226 Difference]: Without dead ends: 4242 [2021-11-02 23:04:27,376 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:04:27,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4242 states. [2021-11-02 23:04:28,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4242 to 2363. [2021-11-02 23:04:28,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2363 states, 2334 states have (on average 1.4010282776349614) internal successors, (3270), 2362 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:28,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 3270 transitions. [2021-11-02 23:04:28,125 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 3270 transitions. Word has length 115 [2021-11-02 23:04:28,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:04:28,125 INFO L470 AbstractCegarLoop]: Abstraction has 2363 states and 3270 transitions. [2021-11-02 23:04:28,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:28,125 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 3270 transitions. [2021-11-02 23:04:28,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:04:28,127 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:04:28,127 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:04:28,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-11-02 23:04:28,127 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:04:28,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:04:28,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1161160130, now seen corresponding path program 1 times [2021-11-02 23:04:28,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:04:28,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902666908] [2021-11-02 23:04:28,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:04:28,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:04:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:04:28,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:28,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:04:28,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902666908] [2021-11-02 23:04:28,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902666908] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:04:28,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:04:28,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:04:28,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672007139] [2021-11-02 23:04:28,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:04:28,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:04:28,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:04:28,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:04:28,266 INFO L87 Difference]: Start difference. First operand 2363 states and 3270 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:32,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:04:32,795 INFO L93 Difference]: Finished difference Result 4583 states and 6457 transitions. [2021-11-02 23:04:32,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:04:32,795 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-02 23:04:32,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:04:32,799 INFO L225 Difference]: With dead ends: 4583 [2021-11-02 23:04:32,799 INFO L226 Difference]: Without dead ends: 4242 [2021-11-02 23:04:32,800 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:04:32,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4242 states. [2021-11-02 23:04:33,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4242 to 2359. [2021-11-02 23:04:33,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2359 states, 2330 states have (on average 1.4012875536480687) internal successors, (3265), 2358 states have internal predecessors, (3265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:33,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 3265 transitions. [2021-11-02 23:04:33,534 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 3265 transitions. Word has length 115 [2021-11-02 23:04:33,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:04:33,534 INFO L470 AbstractCegarLoop]: Abstraction has 2359 states and 3265 transitions. [2021-11-02 23:04:33,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:33,535 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 3265 transitions. [2021-11-02 23:04:33,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:04:33,536 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:04:33,536 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:04:33,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-11-02 23:04:33,537 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:04:33,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:04:33,537 INFO L85 PathProgramCache]: Analyzing trace with hash -304266844, now seen corresponding path program 1 times [2021-11-02 23:04:33,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:04:33,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435296632] [2021-11-02 23:04:33,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:04:33,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:04:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:04:33,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:33,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:04:33,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435296632] [2021-11-02 23:04:33,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435296632] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:04:33,661 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:04:33,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:04:33,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047664897] [2021-11-02 23:04:33,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:04:33,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:04:33,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:04:33,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:04:33,662 INFO L87 Difference]: Start difference. First operand 2359 states and 3265 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:37,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:04:37,936 INFO L93 Difference]: Finished difference Result 4588 states and 6460 transitions. [2021-11-02 23:04:37,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:04:37,937 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-02 23:04:37,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:04:37,940 INFO L225 Difference]: With dead ends: 4588 [2021-11-02 23:04:37,940 INFO L226 Difference]: Without dead ends: 4242 [2021-11-02 23:04:37,941 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:04:37,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4242 states. [2021-11-02 23:04:38,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4242 to 2355. [2021-11-02 23:04:38,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2355 states, 2326 states have (on average 1.4015477214101462) internal successors, (3260), 2354 states have internal predecessors, (3260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:38,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2355 states to 2355 states and 3260 transitions. [2021-11-02 23:04:38,670 INFO L78 Accepts]: Start accepts. Automaton has 2355 states and 3260 transitions. Word has length 115 [2021-11-02 23:04:38,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:04:38,670 INFO L470 AbstractCegarLoop]: Abstraction has 2355 states and 3260 transitions. [2021-11-02 23:04:38,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:38,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2355 states and 3260 transitions. [2021-11-02 23:04:38,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:04:38,672 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:04:38,672 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:04:38,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-11-02 23:04:38,672 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:04:38,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:04:38,673 INFO L85 PathProgramCache]: Analyzing trace with hash 119076324, now seen corresponding path program 1 times [2021-11-02 23:04:38,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:04:38,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353846601] [2021-11-02 23:04:38,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:04:38,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:04:38,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:04:38,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:38,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:04:38,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353846601] [2021-11-02 23:04:38,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353846601] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:04:38,783 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:04:38,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:04:38,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887691475] [2021-11-02 23:04:38,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:04:38,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:04:38,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:04:38,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:04:38,784 INFO L87 Difference]: Start difference. First operand 2355 states and 3260 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:43,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:04:43,507 INFO L93 Difference]: Finished difference Result 4167 states and 5874 transitions. [2021-11-02 23:04:43,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-02 23:04:43,508 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-02 23:04:43,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:04:43,511 INFO L225 Difference]: With dead ends: 4167 [2021-11-02 23:04:43,511 INFO L226 Difference]: Without dead ends: 3799 [2021-11-02 23:04:43,512 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:04:43,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3799 states. [2021-11-02 23:04:44,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3799 to 2355. [2021-11-02 23:04:44,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2355 states, 2326 states have (on average 1.4011177987962167) internal successors, (3259), 2354 states have internal predecessors, (3259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:44,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2355 states to 2355 states and 3259 transitions. [2021-11-02 23:04:44,272 INFO L78 Accepts]: Start accepts. Automaton has 2355 states and 3259 transitions. Word has length 115 [2021-11-02 23:04:44,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:04:44,272 INFO L470 AbstractCegarLoop]: Abstraction has 2355 states and 3259 transitions. [2021-11-02 23:04:44,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:44,272 INFO L276 IsEmpty]: Start isEmpty. Operand 2355 states and 3259 transitions. [2021-11-02 23:04:44,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:04:44,274 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:04:44,274 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:04:44,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-11-02 23:04:44,275 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:04:44,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:04:44,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1684066413, now seen corresponding path program 1 times [2021-11-02 23:04:44,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:04:44,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623119053] [2021-11-02 23:04:44,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:04:44,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:04:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:04:44,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:44,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:04:44,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623119053] [2021-11-02 23:04:44,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623119053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:04:44,382 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:04:44,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:04:44,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695454216] [2021-11-02 23:04:44,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:04:44,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:04:44,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:04:44,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:04:44,383 INFO L87 Difference]: Start difference. First operand 2355 states and 3259 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:48,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:04:48,700 INFO L93 Difference]: Finished difference Result 4594 states and 6467 transitions. [2021-11-02 23:04:48,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:04:48,701 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-02 23:04:48,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:04:48,704 INFO L225 Difference]: With dead ends: 4594 [2021-11-02 23:04:48,704 INFO L226 Difference]: Without dead ends: 4242 [2021-11-02 23:04:48,705 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:04:48,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4242 states. [2021-11-02 23:04:49,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4242 to 2347. [2021-11-02 23:04:49,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2347 states, 2318 states have (on average 1.401639344262295) internal successors, (3249), 2346 states have internal predecessors, (3249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:49,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2347 states to 2347 states and 3249 transitions. [2021-11-02 23:04:49,477 INFO L78 Accepts]: Start accepts. Automaton has 2347 states and 3249 transitions. Word has length 115 [2021-11-02 23:04:49,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:04:49,477 INFO L470 AbstractCegarLoop]: Abstraction has 2347 states and 3249 transitions. [2021-11-02 23:04:49,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:49,477 INFO L276 IsEmpty]: Start isEmpty. Operand 2347 states and 3249 transitions. [2021-11-02 23:04:49,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:04:49,479 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:04:49,479 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:04:49,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-11-02 23:04:49,479 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:04:49,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:04:49,480 INFO L85 PathProgramCache]: Analyzing trace with hash 533539957, now seen corresponding path program 1 times [2021-11-02 23:04:49,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:04:49,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254244600] [2021-11-02 23:04:49,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:04:49,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:04:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:04:49,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:49,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:04:49,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254244600] [2021-11-02 23:04:49,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254244600] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:04:49,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:04:49,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:04:49,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856949701] [2021-11-02 23:04:49,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:04:49,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:04:49,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:04:49,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:04:49,586 INFO L87 Difference]: Start difference. First operand 2347 states and 3249 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:53,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:04:53,942 INFO L93 Difference]: Finished difference Result 4584 states and 6453 transitions. [2021-11-02 23:04:53,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:04:53,942 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-02 23:04:53,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:04:53,946 INFO L225 Difference]: With dead ends: 4584 [2021-11-02 23:04:53,946 INFO L226 Difference]: Without dead ends: 4242 [2021-11-02 23:04:53,947 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:04:53,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4242 states. [2021-11-02 23:04:54,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4242 to 2343. [2021-11-02 23:04:54,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2343 states, 2314 states have (on average 1.4019014693171996) internal successors, (3244), 2342 states have internal predecessors, (3244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:54,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2343 states to 2343 states and 3244 transitions. [2021-11-02 23:04:54,701 INFO L78 Accepts]: Start accepts. Automaton has 2343 states and 3244 transitions. Word has length 115 [2021-11-02 23:04:54,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:04:54,701 INFO L470 AbstractCegarLoop]: Abstraction has 2343 states and 3244 transitions. [2021-11-02 23:04:54,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:54,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2343 states and 3244 transitions. [2021-11-02 23:04:54,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:04:54,703 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:04:54,704 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:04:54,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-11-02 23:04:54,704 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:04:54,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:04:54,705 INFO L85 PathProgramCache]: Analyzing trace with hash 2055298201, now seen corresponding path program 1 times [2021-11-02 23:04:54,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:04:54,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110968324] [2021-11-02 23:04:54,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:04:54,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:04:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:04:54,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:54,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:04:54,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110968324] [2021-11-02 23:04:54,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110968324] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:04:54,825 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:04:54,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:04:54,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576039861] [2021-11-02 23:04:54,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:04:54,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:04:54,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:04:54,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:04:54,826 INFO L87 Difference]: Start difference. First operand 2343 states and 3244 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:59,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:04:59,525 INFO L93 Difference]: Finished difference Result 4802 states and 6761 transitions. [2021-11-02 23:04:59,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:04:59,525 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-02 23:04:59,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:04:59,529 INFO L225 Difference]: With dead ends: 4802 [2021-11-02 23:04:59,529 INFO L226 Difference]: Without dead ends: 4338 [2021-11-02 23:04:59,530 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:04:59,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4338 states. [2021-11-02 23:05:00,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4338 to 2335. [2021-11-02 23:05:00,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2306 states have (on average 1.4024284475281874) internal successors, (3234), 2334 states have internal predecessors, (3234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:00,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3234 transitions. [2021-11-02 23:05:00,291 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3234 transitions. Word has length 115 [2021-11-02 23:05:00,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:05:00,291 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 3234 transitions. [2021-11-02 23:05:00,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:00,291 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3234 transitions. [2021-11-02 23:05:00,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:05:00,293 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:05:00,293 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:05:00,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-11-02 23:05:00,293 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:05:00,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:05:00,294 INFO L85 PathProgramCache]: Analyzing trace with hash -476680515, now seen corresponding path program 1 times [2021-11-02 23:05:00,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:05:00,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796789942] [2021-11-02 23:05:00,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:05:00,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:05:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:05:00,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:00,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:05:00,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796789942] [2021-11-02 23:05:00,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796789942] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:05:00,412 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:05:00,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:05:00,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911089454] [2021-11-02 23:05:00,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:05:00,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:05:00,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:05:00,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:05:00,414 INFO L87 Difference]: Start difference. First operand 2335 states and 3234 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:04,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:05:04,847 INFO L93 Difference]: Finished difference Result 4590 states and 6460 transitions. [2021-11-02 23:05:04,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:05:04,847 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-02 23:05:04,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:05:04,851 INFO L225 Difference]: With dead ends: 4590 [2021-11-02 23:05:04,851 INFO L226 Difference]: Without dead ends: 4234 [2021-11-02 23:05:04,852 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:05:04,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2021-11-02 23:05:05,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 2327. [2021-11-02 23:05:05,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2298 states have (on average 1.4029590948651) internal successors, (3224), 2326 states have internal predecessors, (3224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:05,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3224 transitions. [2021-11-02 23:05:05,641 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3224 transitions. Word has length 115 [2021-11-02 23:05:05,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:05:05,641 INFO L470 AbstractCegarLoop]: Abstraction has 2327 states and 3224 transitions. [2021-11-02 23:05:05,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:05,641 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3224 transitions. [2021-11-02 23:05:05,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:05:05,643 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:05:05,643 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:05:05,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-11-02 23:05:05,643 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:05:05,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:05:05,643 INFO L85 PathProgramCache]: Analyzing trace with hash -53337347, now seen corresponding path program 1 times [2021-11-02 23:05:05,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:05:05,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345416982] [2021-11-02 23:05:05,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:05:05,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:05:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:05:05,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:05,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:05:05,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345416982] [2021-11-02 23:05:05,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345416982] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:05:05,784 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:05:05,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:05:05,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174757658] [2021-11-02 23:05:05,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:05:05,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:05:05,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:05:05,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:05:05,785 INFO L87 Difference]: Start difference. First operand 2327 states and 3224 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:09,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:05:09,683 INFO L93 Difference]: Finished difference Result 3497 states and 4883 transitions. [2021-11-02 23:05:09,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:05:09,683 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-02 23:05:09,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:05:09,686 INFO L225 Difference]: With dead ends: 3497 [2021-11-02 23:05:09,686 INFO L226 Difference]: Without dead ends: 3107 [2021-11-02 23:05:09,687 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:05:09,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3107 states. [2021-11-02 23:05:10,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3107 to 2327. [2021-11-02 23:05:10,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2298 states have (on average 1.402088772845953) internal successors, (3222), 2326 states have internal predecessors, (3222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:10,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3222 transitions. [2021-11-02 23:05:10,442 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3222 transitions. Word has length 115 [2021-11-02 23:05:10,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:05:10,442 INFO L470 AbstractCegarLoop]: Abstraction has 2327 states and 3222 transitions. [2021-11-02 23:05:10,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 8 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:10,443 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3222 transitions. [2021-11-02 23:05:10,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:05:10,444 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:05:10,444 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:05:10,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-11-02 23:05:10,445 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:05:10,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:05:10,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1530428595, now seen corresponding path program 1 times [2021-11-02 23:05:10,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:05:10,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729554940] [2021-11-02 23:05:10,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:05:10,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:05:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:05:10,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:10,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:05:10,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729554940] [2021-11-02 23:05:10,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729554940] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:05:10,582 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:05:10,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:05:10,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507972680] [2021-11-02 23:05:10,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:05:10,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:05:10,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:05:10,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:05:10,584 INFO L87 Difference]: Start difference. First operand 2327 states and 3222 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:15,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:05:15,095 INFO L93 Difference]: Finished difference Result 4446 states and 6222 transitions. [2021-11-02 23:05:15,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:05:15,096 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:05:15,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:05:15,099 INFO L225 Difference]: With dead ends: 4446 [2021-11-02 23:05:15,100 INFO L226 Difference]: Without dead ends: 4098 [2021-11-02 23:05:15,101 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:05:15,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2021-11-02 23:05:15,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 2327. [2021-11-02 23:05:15,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2298 states have (on average 1.400348128807659) internal successors, (3218), 2326 states have internal predecessors, (3218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:15,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3218 transitions. [2021-11-02 23:05:15,957 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3218 transitions. Word has length 116 [2021-11-02 23:05:15,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:05:15,957 INFO L470 AbstractCegarLoop]: Abstraction has 2327 states and 3218 transitions. [2021-11-02 23:05:15,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:15,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3218 transitions. [2021-11-02 23:05:15,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:05:15,960 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:05:15,960 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:05:15,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-11-02 23:05:15,960 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:05:15,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:05:15,961 INFO L85 PathProgramCache]: Analyzing trace with hash -852341599, now seen corresponding path program 1 times [2021-11-02 23:05:15,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:05:15,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138622878] [2021-11-02 23:05:15,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:05:15,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:05:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:05:16,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:16,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:05:16,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138622878] [2021-11-02 23:05:16,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138622878] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:05:16,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:05:16,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:05:16,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672228325] [2021-11-02 23:05:16,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:05:16,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:05:16,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:05:16,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:05:16,121 INFO L87 Difference]: Start difference. First operand 2327 states and 3218 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:25,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:05:25,233 INFO L93 Difference]: Finished difference Result 6636 states and 9423 transitions. [2021-11-02 23:05:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:05:25,233 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:05:25,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:05:25,240 INFO L225 Difference]: With dead ends: 6636 [2021-11-02 23:05:25,240 INFO L226 Difference]: Without dead ends: 6264 [2021-11-02 23:05:25,241 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:05:25,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6264 states. [2021-11-02 23:05:26,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6264 to 2343. [2021-11-02 23:05:26,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2343 states, 2314 states have (on average 1.397579948141746) internal successors, (3234), 2342 states have internal predecessors, (3234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:26,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2343 states to 2343 states and 3234 transitions. [2021-11-02 23:05:26,098 INFO L78 Accepts]: Start accepts. Automaton has 2343 states and 3234 transitions. Word has length 116 [2021-11-02 23:05:26,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:05:26,099 INFO L470 AbstractCegarLoop]: Abstraction has 2343 states and 3234 transitions. [2021-11-02 23:05:26,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:26,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2343 states and 3234 transitions. [2021-11-02 23:05:26,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:05:26,101 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:05:26,101 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:05:26,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-11-02 23:05:26,102 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:05:26,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:05:26,102 INFO L85 PathProgramCache]: Analyzing trace with hash 2039613955, now seen corresponding path program 1 times [2021-11-02 23:05:26,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:05:26,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419001590] [2021-11-02 23:05:26,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:05:26,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:05:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:05:26,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:26,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:05:26,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419001590] [2021-11-02 23:05:26,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419001590] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:05:26,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:05:26,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:05:26,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222491273] [2021-11-02 23:05:26,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:05:26,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:05:26,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:05:26,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:05:26,211 INFO L87 Difference]: Start difference. First operand 2343 states and 3234 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:30,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:05:30,803 INFO L93 Difference]: Finished difference Result 4456 states and 6225 transitions. [2021-11-02 23:05:30,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:05:30,803 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:05:30,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:05:30,807 INFO L225 Difference]: With dead ends: 4456 [2021-11-02 23:05:30,807 INFO L226 Difference]: Without dead ends: 4114 [2021-11-02 23:05:30,808 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:05:30,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4114 states. [2021-11-02 23:05:31,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4114 to 2343. [2021-11-02 23:05:31,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2343 states, 2314 states have (on average 1.3958513396715644) internal successors, (3230), 2342 states have internal predecessors, (3230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:31,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2343 states to 2343 states and 3230 transitions. [2021-11-02 23:05:31,618 INFO L78 Accepts]: Start accepts. Automaton has 2343 states and 3230 transitions. Word has length 116 [2021-11-02 23:05:31,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:05:31,618 INFO L470 AbstractCegarLoop]: Abstraction has 2343 states and 3230 transitions. [2021-11-02 23:05:31,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:31,618 INFO L276 IsEmpty]: Start isEmpty. Operand 2343 states and 3230 transitions. [2021-11-02 23:05:31,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:05:31,620 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:05:31,620 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:05:31,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-11-02 23:05:31,621 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:05:31,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:05:31,621 INFO L85 PathProgramCache]: Analyzing trace with hash 775292020, now seen corresponding path program 1 times [2021-11-02 23:05:31,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:05:31,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619600243] [2021-11-02 23:05:31,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:05:31,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:05:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:05:31,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:31,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:05:31,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619600243] [2021-11-02 23:05:31,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619600243] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:05:31,787 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:05:31,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:05:31,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077621704] [2021-11-02 23:05:31,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:05:31,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:05:31,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:05:31,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:05:31,789 INFO L87 Difference]: Start difference. First operand 2343 states and 3230 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:40,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:05:40,020 INFO L93 Difference]: Finished difference Result 6124 states and 8641 transitions. [2021-11-02 23:05:40,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:05:40,020 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:05:40,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:05:40,025 INFO L225 Difference]: With dead ends: 6124 [2021-11-02 23:05:40,025 INFO L226 Difference]: Without dead ends: 5776 [2021-11-02 23:05:40,026 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:05:40,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5776 states. [2021-11-02 23:05:40,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5776 to 2359. [2021-11-02 23:05:40,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2359 states, 2330 states have (on average 1.3931330472103005) internal successors, (3246), 2358 states have internal predecessors, (3246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:40,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 3246 transitions. [2021-11-02 23:05:40,876 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 3246 transitions. Word has length 116 [2021-11-02 23:05:40,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:05:40,876 INFO L470 AbstractCegarLoop]: Abstraction has 2359 states and 3246 transitions. [2021-11-02 23:05:40,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:40,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 3246 transitions. [2021-11-02 23:05:40,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:05:40,878 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:05:40,878 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:05:40,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-11-02 23:05:40,878 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:05:40,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:05:40,878 INFO L85 PathProgramCache]: Analyzing trace with hash -696594836, now seen corresponding path program 1 times [2021-11-02 23:05:40,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:05:40,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220526059] [2021-11-02 23:05:40,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:05:40,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:05:40,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:05:40,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:40,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:05:40,997 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220526059] [2021-11-02 23:05:40,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220526059] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:05:40,998 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:05:40,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:05:40,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553320365] [2021-11-02 23:05:40,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:05:40,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:05:40,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:05:40,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:05:40,999 INFO L87 Difference]: Start difference. First operand 2359 states and 3246 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:45,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:05:45,665 INFO L93 Difference]: Finished difference Result 4452 states and 6213 transitions. [2021-11-02 23:05:45,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:05:45,665 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:05:45,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:05:45,669 INFO L225 Difference]: With dead ends: 4452 [2021-11-02 23:05:45,669 INFO L226 Difference]: Without dead ends: 4114 [2021-11-02 23:05:45,670 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:05:45,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4114 states. [2021-11-02 23:05:46,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4114 to 2359. [2021-11-02 23:05:46,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2359 states, 2330 states have (on average 1.392274678111588) internal successors, (3244), 2358 states have internal predecessors, (3244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:46,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 3244 transitions. [2021-11-02 23:05:46,547 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 3244 transitions. Word has length 116 [2021-11-02 23:05:46,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:05:46,547 INFO L470 AbstractCegarLoop]: Abstraction has 2359 states and 3244 transitions. [2021-11-02 23:05:46,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:46,547 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 3244 transitions. [2021-11-02 23:05:46,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:05:46,549 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:05:46,549 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:05:46,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-11-02 23:05:46,549 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:05:46,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:05:46,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1960799597, now seen corresponding path program 1 times [2021-11-02 23:05:46,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:05:46,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976744278] [2021-11-02 23:05:46,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:05:46,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:05:46,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:05:46,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:46,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:05:46,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976744278] [2021-11-02 23:05:46,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976744278] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:05:46,701 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:05:46,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:05:46,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811463280] [2021-11-02 23:05:46,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:05:46,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:05:46,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:05:46,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:05:46,702 INFO L87 Difference]: Start difference. First operand 2359 states and 3244 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:55,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:05:55,089 INFO L93 Difference]: Finished difference Result 6112 states and 8619 transitions. [2021-11-02 23:05:55,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:05:55,089 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:05:55,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:05:55,094 INFO L225 Difference]: With dead ends: 6112 [2021-11-02 23:05:55,094 INFO L226 Difference]: Without dead ends: 5770 [2021-11-02 23:05:55,096 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:05:55,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5770 states. [2021-11-02 23:05:55,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5770 to 2367. [2021-11-02 23:05:55,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2367 states, 2338 states have (on average 1.3909324208725407) internal successors, (3252), 2366 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:55,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 3252 transitions. [2021-11-02 23:05:55,997 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 3252 transitions. Word has length 116 [2021-11-02 23:05:55,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:05:55,997 INFO L470 AbstractCegarLoop]: Abstraction has 2367 states and 3252 transitions. [2021-11-02 23:05:55,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:55,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 3252 transitions. [2021-11-02 23:05:55,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:05:55,999 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:05:55,999 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:05:56,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-11-02 23:05:56,000 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:05:56,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:05:56,000 INFO L85 PathProgramCache]: Analyzing trace with hash -47900760, now seen corresponding path program 1 times [2021-11-02 23:05:56,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:05:56,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457235093] [2021-11-02 23:05:56,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:05:56,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:05:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:05:56,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:56,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:05:56,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457235093] [2021-11-02 23:05:56,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457235093] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:05:56,190 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:05:56,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:05:56,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889142040] [2021-11-02 23:05:56,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:05:56,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:05:56,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:05:56,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:05:56,192 INFO L87 Difference]: Start difference. First operand 2367 states and 3252 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:04,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:06:04,640 INFO L93 Difference]: Finished difference Result 6104 states and 8607 transitions. [2021-11-02 23:06:04,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:06:04,640 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:06:04,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:06:04,644 INFO L225 Difference]: With dead ends: 6104 [2021-11-02 23:06:04,644 INFO L226 Difference]: Without dead ends: 5766 [2021-11-02 23:06:04,645 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:06:04,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5766 states. [2021-11-02 23:06:05,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5766 to 2375. [2021-11-02 23:06:05,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2375 states, 2346 states have (on average 1.3895993179880648) internal successors, (3260), 2374 states have internal predecessors, (3260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:05,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2375 states to 2375 states and 3260 transitions. [2021-11-02 23:06:05,474 INFO L78 Accepts]: Start accepts. Automaton has 2375 states and 3260 transitions. Word has length 116 [2021-11-02 23:06:05,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:06:05,474 INFO L470 AbstractCegarLoop]: Abstraction has 2375 states and 3260 transitions. [2021-11-02 23:06:05,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:05,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2375 states and 3260 transitions. [2021-11-02 23:06:05,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:06:05,476 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:06:05,476 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:06:05,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-11-02 23:06:05,476 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:06:05,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:06:05,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1460670815, now seen corresponding path program 1 times [2021-11-02 23:06:05,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:06:05,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410606259] [2021-11-02 23:06:05,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:06:05,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:06:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:05,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:05,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:06:05,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410606259] [2021-11-02 23:06:05,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410606259] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:06:05,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:06:05,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:06:05,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598875253] [2021-11-02 23:06:05,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:06:05,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:06:05,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:06:05,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:06:05,642 INFO L87 Difference]: Start difference. First operand 2375 states and 3260 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:13,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:06:13,682 INFO L93 Difference]: Finished difference Result 6112 states and 8613 transitions. [2021-11-02 23:06:13,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:06:13,683 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:06:13,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:06:13,687 INFO L225 Difference]: With dead ends: 6112 [2021-11-02 23:06:13,687 INFO L226 Difference]: Without dead ends: 5770 [2021-11-02 23:06:13,688 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:06:13,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5770 states. [2021-11-02 23:06:14,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5770 to 2391. [2021-11-02 23:06:14,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2391 states, 2362 states have (on average 1.3869602032176123) internal successors, (3276), 2390 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:14,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2391 states to 2391 states and 3276 transitions. [2021-11-02 23:06:14,574 INFO L78 Accepts]: Start accepts. Automaton has 2391 states and 3276 transitions. Word has length 116 [2021-11-02 23:06:14,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:06:14,575 INFO L470 AbstractCegarLoop]: Abstraction has 2391 states and 3276 transitions. [2021-11-02 23:06:14,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:14,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2391 states and 3276 transitions. [2021-11-02 23:06:14,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:06:14,576 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:06:14,576 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:06:14,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-11-02 23:06:14,577 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:06:14,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:06:14,577 INFO L85 PathProgramCache]: Analyzing trace with hash 811976739, now seen corresponding path program 1 times [2021-11-02 23:06:14,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:06:14,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029813038] [2021-11-02 23:06:14,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:06:14,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:06:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:14,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:14,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:06:14,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029813038] [2021-11-02 23:06:14,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029813038] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:06:14,680 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:06:14,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:06:14,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137261845] [2021-11-02 23:06:14,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:06:14,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:06:14,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:06:14,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:06:14,682 INFO L87 Difference]: Start difference. First operand 2391 states and 3276 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:19,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:06:19,075 INFO L93 Difference]: Finished difference Result 4456 states and 6207 transitions. [2021-11-02 23:06:19,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:06:19,076 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:06:19,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:06:19,079 INFO L225 Difference]: With dead ends: 4456 [2021-11-02 23:06:19,079 INFO L226 Difference]: Without dead ends: 4114 [2021-11-02 23:06:19,080 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:06:19,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4114 states. [2021-11-02 23:06:19,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4114 to 2391. [2021-11-02 23:06:19,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2391 states, 2362 states have (on average 1.3852667231160034) internal successors, (3272), 2390 states have internal predecessors, (3272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:19,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2391 states to 2391 states and 3272 transitions. [2021-11-02 23:06:19,936 INFO L78 Accepts]: Start accepts. Automaton has 2391 states and 3272 transitions. Word has length 116 [2021-11-02 23:06:19,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:06:19,937 INFO L470 AbstractCegarLoop]: Abstraction has 2391 states and 3272 transitions. [2021-11-02 23:06:19,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:19,937 INFO L276 IsEmpty]: Start isEmpty. Operand 2391 states and 3272 transitions. [2021-11-02 23:06:19,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:06:19,938 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:06:19,938 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:06:19,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-11-02 23:06:19,939 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:06:19,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:06:19,939 INFO L85 PathProgramCache]: Analyzing trace with hash -452010555, now seen corresponding path program 1 times [2021-11-02 23:06:19,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:06:19,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125174950] [2021-11-02 23:06:19,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:06:19,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:06:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:20,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:20,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:06:20,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125174950] [2021-11-02 23:06:20,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125174950] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:06:20,078 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:06:20,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:06:20,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992387407] [2021-11-02 23:06:20,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:06:20,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:06:20,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:06:20,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:06:20,079 INFO L87 Difference]: Start difference. First operand 2391 states and 3272 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:28,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:06:28,436 INFO L93 Difference]: Finished difference Result 6124 states and 8623 transitions. [2021-11-02 23:06:28,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:06:28,436 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:06:28,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:06:28,440 INFO L225 Difference]: With dead ends: 6124 [2021-11-02 23:06:28,441 INFO L226 Difference]: Without dead ends: 5776 [2021-11-02 23:06:28,442 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:06:28,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5776 states. [2021-11-02 23:06:29,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5776 to 2407. [2021-11-02 23:06:29,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 2378 states have (on average 1.3826745164003365) internal successors, (3288), 2406 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:29,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 3288 transitions. [2021-11-02 23:06:29,341 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 3288 transitions. Word has length 116 [2021-11-02 23:06:29,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:06:29,341 INFO L470 AbstractCegarLoop]: Abstraction has 2407 states and 3288 transitions. [2021-11-02 23:06:29,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:29,342 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 3288 transitions. [2021-11-02 23:06:29,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:06:29,343 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:06:29,343 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:06:29,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-11-02 23:06:29,343 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:06:29,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:06:29,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1332432067, now seen corresponding path program 1 times [2021-11-02 23:06:29,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:06:29,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544344084] [2021-11-02 23:06:29,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:06:29,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:06:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:29,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:29,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:06:29,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544344084] [2021-11-02 23:06:29,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544344084] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:06:29,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:06:29,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:06:29,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494786895] [2021-11-02 23:06:29,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:06:29,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:06:29,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:06:29,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:06:29,485 INFO L87 Difference]: Start difference. First operand 2407 states and 3288 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:37,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:06:37,820 INFO L93 Difference]: Finished difference Result 6104 states and 8593 transitions. [2021-11-02 23:06:37,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:06:37,821 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:06:37,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:06:37,856 INFO L225 Difference]: With dead ends: 6104 [2021-11-02 23:06:37,856 INFO L226 Difference]: Without dead ends: 5766 [2021-11-02 23:06:37,857 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:06:37,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5766 states. [2021-11-02 23:06:38,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5766 to 2415. [2021-11-02 23:06:38,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2415 states, 2386 states have (on average 1.3813914501257334) internal successors, (3296), 2414 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:38,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2415 states to 2415 states and 3296 transitions. [2021-11-02 23:06:38,730 INFO L78 Accepts]: Start accepts. Automaton has 2415 states and 3296 transitions. Word has length 116 [2021-11-02 23:06:38,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:06:38,731 INFO L470 AbstractCegarLoop]: Abstraction has 2415 states and 3296 transitions. [2021-11-02 23:06:38,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:38,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2415 states and 3296 transitions. [2021-11-02 23:06:38,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:06:38,733 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:06:38,733 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:06:38,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-11-02 23:06:38,733 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:06:38,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:06:38,733 INFO L85 PathProgramCache]: Analyzing trace with hash -2118852475, now seen corresponding path program 1 times [2021-11-02 23:06:38,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:06:38,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795818472] [2021-11-02 23:06:38,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:06:38,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:06:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:38,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:38,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:06:38,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795818472] [2021-11-02 23:06:38,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795818472] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:06:38,843 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:06:38,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:06:38,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189270666] [2021-11-02 23:06:38,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:06:38,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:06:38,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:06:38,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:06:38,844 INFO L87 Difference]: Start difference. First operand 2415 states and 3296 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:43,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:06:43,447 INFO L93 Difference]: Finished difference Result 4686 states and 6523 transitions. [2021-11-02 23:06:43,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:06:43,447 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:06:43,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:06:43,451 INFO L225 Difference]: With dead ends: 4686 [2021-11-02 23:06:43,451 INFO L226 Difference]: Without dead ends: 4338 [2021-11-02 23:06:43,452 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:06:43,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4338 states. [2021-11-02 23:06:44,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4338 to 2415. [2021-11-02 23:06:44,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2415 states, 2386 states have (on average 1.3805532271584242) internal successors, (3294), 2414 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:44,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2415 states to 2415 states and 3294 transitions. [2021-11-02 23:06:44,355 INFO L78 Accepts]: Start accepts. Automaton has 2415 states and 3294 transitions. Word has length 116 [2021-11-02 23:06:44,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:06:44,355 INFO L470 AbstractCegarLoop]: Abstraction has 2415 states and 3294 transitions. [2021-11-02 23:06:44,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:44,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2415 states and 3294 transitions. [2021-11-02 23:06:44,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:06:44,358 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:06:44,358 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:06:44,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-11-02 23:06:44,358 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:06:44,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:06:44,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1305543109, now seen corresponding path program 1 times [2021-11-02 23:06:44,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:06:44,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671863031] [2021-11-02 23:06:44,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:06:44,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:06:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:44,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:44,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:06:44,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671863031] [2021-11-02 23:06:44,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671863031] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:06:44,463 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:06:44,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:06:44,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861906784] [2021-11-02 23:06:44,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:06:44,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:06:44,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:06:44,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:06:44,464 INFO L87 Difference]: Start difference. First operand 2415 states and 3294 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:48,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:06:48,994 INFO L93 Difference]: Finished difference Result 4448 states and 6187 transitions. [2021-11-02 23:06:48,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:06:48,994 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:06:48,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:06:48,997 INFO L225 Difference]: With dead ends: 4448 [2021-11-02 23:06:48,997 INFO L226 Difference]: Without dead ends: 4114 [2021-11-02 23:06:48,998 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:06:49,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4114 states. [2021-11-02 23:06:49,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4114 to 2415. [2021-11-02 23:06:49,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2415 states, 2386 states have (on average 1.3797150041911148) internal successors, (3292), 2414 states have internal predecessors, (3292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:49,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2415 states to 2415 states and 3292 transitions. [2021-11-02 23:06:49,909 INFO L78 Accepts]: Start accepts. Automaton has 2415 states and 3292 transitions. Word has length 116 [2021-11-02 23:06:49,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:06:49,909 INFO L470 AbstractCegarLoop]: Abstraction has 2415 states and 3292 transitions. [2021-11-02 23:06:49,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:49,910 INFO L276 IsEmpty]: Start isEmpty. Operand 2415 states and 3292 transitions. [2021-11-02 23:06:49,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:06:49,911 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:06:49,911 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:06:49,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-11-02 23:06:49,912 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:06:49,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:06:49,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1235431825, now seen corresponding path program 1 times [2021-11-02 23:06:49,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:06:49,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299178577] [2021-11-02 23:06:49,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:06:49,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:06:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:50,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:50,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:06:50,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299178577] [2021-11-02 23:06:50,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299178577] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:06:50,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:06:50,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:06:50,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011984821] [2021-11-02 23:06:50,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:06:50,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:06:50,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:06:50,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:06:50,057 INFO L87 Difference]: Start difference. First operand 2415 states and 3292 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:59,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:06:59,683 INFO L93 Difference]: Finished difference Result 6440 states and 9019 transitions. [2021-11-02 23:06:59,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-02 23:06:59,683 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:06:59,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:06:59,688 INFO L225 Difference]: With dead ends: 6440 [2021-11-02 23:06:59,688 INFO L226 Difference]: Without dead ends: 6102 [2021-11-02 23:06:59,689 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 23:06:59,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6102 states. [2021-11-02 23:07:00,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6102 to 2423. [2021-11-02 23:07:00,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2423 states, 2394 states have (on average 1.3784461152882206) internal successors, (3300), 2422 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:00,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 3300 transitions. [2021-11-02 23:07:00,631 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 3300 transitions. Word has length 116 [2021-11-02 23:07:00,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:07:00,632 INFO L470 AbstractCegarLoop]: Abstraction has 2423 states and 3300 transitions. [2021-11-02 23:07:00,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:00,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 3300 transitions. [2021-11-02 23:07:00,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:07:00,634 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:07:00,634 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:07:00,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-11-02 23:07:00,634 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:07:00,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:07:00,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1884125901, now seen corresponding path program 1 times [2021-11-02 23:07:00,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:07:00,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085642910] [2021-11-02 23:07:00,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:07:00,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:07:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:07:00,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:00,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:07:00,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085642910] [2021-11-02 23:07:00,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085642910] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:07:00,743 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:07:00,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:07:00,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813961101] [2021-11-02 23:07:00,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:07:00,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:07:00,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:07:00,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:07:00,743 INFO L87 Difference]: Start difference. First operand 2423 states and 3300 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:05,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:07:05,338 INFO L93 Difference]: Finished difference Result 4452 states and 6187 transitions. [2021-11-02 23:07:05,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:07:05,338 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:07:05,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:07:05,341 INFO L225 Difference]: With dead ends: 4452 [2021-11-02 23:07:05,341 INFO L226 Difference]: Without dead ends: 4114 [2021-11-02 23:07:05,342 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:07:05,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4114 states. [2021-11-02 23:07:06,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4114 to 2423. [2021-11-02 23:07:06,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2423 states, 2394 states have (on average 1.377610693400167) internal successors, (3298), 2422 states have internal predecessors, (3298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:06,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 3298 transitions. [2021-11-02 23:07:06,246 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 3298 transitions. Word has length 116 [2021-11-02 23:07:06,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:07:06,247 INFO L470 AbstractCegarLoop]: Abstraction has 2423 states and 3298 transitions. [2021-11-02 23:07:06,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:06,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 3298 transitions. [2021-11-02 23:07:06,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:07:06,248 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:07:06,248 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:07:06,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-11-02 23:07:06,249 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:07:06,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:07:06,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1147265203, now seen corresponding path program 1 times [2021-11-02 23:07:06,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:07:06,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562258638] [2021-11-02 23:07:06,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:07:06,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:07:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:07:06,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:06,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:07:06,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562258638] [2021-11-02 23:07:06,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562258638] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:07:06,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:07:06,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:07:06,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074119132] [2021-11-02 23:07:06,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:07:06,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:07:06,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:07:06,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:07:06,445 INFO L87 Difference]: Start difference. First operand 2423 states and 3298 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:15,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:07:15,252 INFO L93 Difference]: Finished difference Result 5772 states and 8086 transitions. [2021-11-02 23:07:15,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:07:15,252 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:07:15,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:07:15,256 INFO L225 Difference]: With dead ends: 5772 [2021-11-02 23:07:15,256 INFO L226 Difference]: Without dead ends: 5767 [2021-11-02 23:07:15,257 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:07:15,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5767 states. [2021-11-02 23:07:16,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5767 to 2431. [2021-11-02 23:07:16,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2431 states, 2402 states have (on average 1.376353039134055) internal successors, (3306), 2430 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:16,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2431 states to 2431 states and 3306 transitions. [2021-11-02 23:07:16,188 INFO L78 Accepts]: Start accepts. Automaton has 2431 states and 3306 transitions. Word has length 116 [2021-11-02 23:07:16,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:07:16,189 INFO L470 AbstractCegarLoop]: Abstraction has 2431 states and 3306 transitions. [2021-11-02 23:07:16,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:16,189 INFO L276 IsEmpty]: Start isEmpty. Operand 2431 states and 3306 transitions. [2021-11-02 23:07:16,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:07:16,191 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:07:16,191 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:07:16,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-11-02 23:07:16,191 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:07:16,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:07:16,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1363670573, now seen corresponding path program 1 times [2021-11-02 23:07:16,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:07:16,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643023583] [2021-11-02 23:07:16,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:07:16,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:07:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:07:16,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:16,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:07:16,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643023583] [2021-11-02 23:07:16,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643023583] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:07:16,355 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:07:16,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:07:16,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250529326] [2021-11-02 23:07:16,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:07:16,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:07:16,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:07:16,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:07:16,357 INFO L87 Difference]: Start difference. First operand 2431 states and 3306 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:24,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:07:24,867 INFO L93 Difference]: Finished difference Result 6100 states and 8577 transitions. [2021-11-02 23:07:24,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:07:24,868 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:07:24,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:07:24,873 INFO L225 Difference]: With dead ends: 6100 [2021-11-02 23:07:24,873 INFO L226 Difference]: Without dead ends: 5764 [2021-11-02 23:07:24,874 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:07:24,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5764 states. [2021-11-02 23:07:25,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5764 to 2435. [2021-11-02 23:07:25,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2435 states, 2406 states have (on average 1.375727348295927) internal successors, (3310), 2434 states have internal predecessors, (3310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:25,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2435 states to 2435 states and 3310 transitions. [2021-11-02 23:07:25,886 INFO L78 Accepts]: Start accepts. Automaton has 2435 states and 3310 transitions. Word has length 116 [2021-11-02 23:07:25,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:07:25,886 INFO L470 AbstractCegarLoop]: Abstraction has 2435 states and 3310 transitions. [2021-11-02 23:07:25,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:25,886 INFO L276 IsEmpty]: Start isEmpty. Operand 2435 states and 3310 transitions. [2021-11-02 23:07:25,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:07:25,888 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:07:25,888 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:07:25,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-11-02 23:07:25,888 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:07:25,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:07:25,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1810524402, now seen corresponding path program 1 times [2021-11-02 23:07:25,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:07:25,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792836637] [2021-11-02 23:07:25,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:07:25,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:07:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:07:25,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:25,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:07:25,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792836637] [2021-11-02 23:07:25,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792836637] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:07:25,991 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:07:25,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:07:25,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78778489] [2021-11-02 23:07:25,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:07:25,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:07:25,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:07:25,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:07:25,992 INFO L87 Difference]: Start difference. First operand 2435 states and 3310 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:30,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:07:30,740 INFO L93 Difference]: Finished difference Result 4448 states and 6178 transitions. [2021-11-02 23:07:30,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:07:30,741 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:07:30,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:07:30,744 INFO L225 Difference]: With dead ends: 4448 [2021-11-02 23:07:30,744 INFO L226 Difference]: Without dead ends: 4114 [2021-11-02 23:07:30,746 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:07:30,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4114 states. [2021-11-02 23:07:31,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4114 to 2435. [2021-11-02 23:07:31,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2435 states, 2406 states have (on average 1.3753117206982544) internal successors, (3309), 2434 states have internal predecessors, (3309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:31,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2435 states to 2435 states and 3309 transitions. [2021-11-02 23:07:31,720 INFO L78 Accepts]: Start accepts. Automaton has 2435 states and 3309 transitions. Word has length 116 [2021-11-02 23:07:31,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:07:31,720 INFO L470 AbstractCegarLoop]: Abstraction has 2435 states and 3309 transitions. [2021-11-02 23:07:31,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:31,720 INFO L276 IsEmpty]: Start isEmpty. Operand 2435 states and 3309 transitions. [2021-11-02 23:07:31,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:07:31,722 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:07:31,722 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:07:31,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-11-02 23:07:31,722 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:07:31,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:07:31,722 INFO L85 PathProgramCache]: Analyzing trace with hash -156067103, now seen corresponding path program 1 times [2021-11-02 23:07:31,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:07:31,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331859637] [2021-11-02 23:07:31,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:07:31,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:07:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:07:31,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:31,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:07:31,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331859637] [2021-11-02 23:07:31,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331859637] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:07:31,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:07:31,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:07:31,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838741720] [2021-11-02 23:07:31,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:07:31,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:07:31,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:07:31,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:07:31,871 INFO L87 Difference]: Start difference. First operand 2435 states and 3309 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:40,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:07:40,582 INFO L93 Difference]: Finished difference Result 6096 states and 8571 transitions. [2021-11-02 23:07:40,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:07:40,583 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:07:40,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:07:40,587 INFO L225 Difference]: With dead ends: 6096 [2021-11-02 23:07:40,587 INFO L226 Difference]: Without dead ends: 5762 [2021-11-02 23:07:40,588 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:07:40,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5762 states. [2021-11-02 23:07:41,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5762 to 2439. [2021-11-02 23:07:41,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2410 states have (on average 1.374688796680498) internal successors, (3313), 2438 states have internal predecessors, (3313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:41,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3313 transitions. [2021-11-02 23:07:41,586 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3313 transitions. Word has length 116 [2021-11-02 23:07:41,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:07:41,586 INFO L470 AbstractCegarLoop]: Abstraction has 2439 states and 3313 transitions. [2021-11-02 23:07:41,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:41,586 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3313 transitions. [2021-11-02 23:07:41,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:07:41,588 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:07:41,588 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:07:41,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-11-02 23:07:41,589 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:07:41,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:07:41,589 INFO L85 PathProgramCache]: Analyzing trace with hash 379595975, now seen corresponding path program 1 times [2021-11-02 23:07:41,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:07:41,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500407304] [2021-11-02 23:07:41,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:07:41,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:07:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:07:41,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:41,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:07:41,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500407304] [2021-11-02 23:07:41,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500407304] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:07:41,762 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:07:41,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:07:41,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735770751] [2021-11-02 23:07:41,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:07:41,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:07:41,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:07:41,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:07:41,763 INFO L87 Difference]: Start difference. First operand 2439 states and 3313 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:51,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:07:51,730 INFO L93 Difference]: Finished difference Result 6440 states and 9010 transitions. [2021-11-02 23:07:51,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-02 23:07:51,730 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:07:51,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:07:51,735 INFO L225 Difference]: With dead ends: 6440 [2021-11-02 23:07:51,735 INFO L226 Difference]: Without dead ends: 6102 [2021-11-02 23:07:51,736 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 23:07:51,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6102 states. [2021-11-02 23:07:52,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6102 to 2447. [2021-11-02 23:07:52,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2447 states, 2418 states have (on average 1.3734491315136477) internal successors, (3321), 2446 states have internal predecessors, (3321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:52,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2447 states to 2447 states and 3321 transitions. [2021-11-02 23:07:52,719 INFO L78 Accepts]: Start accepts. Automaton has 2447 states and 3321 transitions. Word has length 116 [2021-11-02 23:07:52,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:07:52,719 INFO L470 AbstractCegarLoop]: Abstraction has 2447 states and 3321 transitions. [2021-11-02 23:07:52,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:52,719 INFO L276 IsEmpty]: Start isEmpty. Operand 2447 states and 3321 transitions. [2021-11-02 23:07:52,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:07:52,722 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:07:52,722 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:07:52,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-11-02 23:07:52,722 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:07:52,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:07:52,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1540870843, now seen corresponding path program 1 times [2021-11-02 23:07:52,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:07:52,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936525662] [2021-11-02 23:07:52,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:07:52,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:07:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:07:52,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:52,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:07:52,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936525662] [2021-11-02 23:07:52,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936525662] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:07:52,820 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:07:52,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:07:52,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830809270] [2021-11-02 23:07:52,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:07:52,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:07:52,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:07:52,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:07:52,821 INFO L87 Difference]: Start difference. First operand 2447 states and 3321 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:57,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:07:57,717 INFO L93 Difference]: Finished difference Result 4448 states and 6174 transitions. [2021-11-02 23:07:57,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:07:57,717 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:07:57,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:07:57,720 INFO L225 Difference]: With dead ends: 4448 [2021-11-02 23:07:57,720 INFO L226 Difference]: Without dead ends: 4114 [2021-11-02 23:07:57,721 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:07:57,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4114 states. [2021-11-02 23:07:58,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4114 to 2447. [2021-11-02 23:07:58,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2447 states, 2418 states have (on average 1.3726220016542596) internal successors, (3319), 2446 states have internal predecessors, (3319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:58,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2447 states to 2447 states and 3319 transitions. [2021-11-02 23:07:58,727 INFO L78 Accepts]: Start accepts. Automaton has 2447 states and 3319 transitions. Word has length 116 [2021-11-02 23:07:58,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:07:58,727 INFO L470 AbstractCegarLoop]: Abstraction has 2447 states and 3319 transitions. [2021-11-02 23:07:58,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:58,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2447 states and 3319 transitions. [2021-11-02 23:07:58,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:07:58,730 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:07:58,730 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:07:58,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-11-02 23:07:58,730 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:07:58,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:07:58,731 INFO L85 PathProgramCache]: Analyzing trace with hash 113586456, now seen corresponding path program 1 times [2021-11-02 23:07:58,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:07:58,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955799245] [2021-11-02 23:07:58,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:07:58,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:07:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:07:58,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:58,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:07:58,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955799245] [2021-11-02 23:07:58,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955799245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:07:58,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:07:58,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:07:58,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486980533] [2021-11-02 23:07:58,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:07:58,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:07:58,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:07:58,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:07:58,903 INFO L87 Difference]: Start difference. First operand 2447 states and 3319 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:07,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:08:07,884 INFO L93 Difference]: Finished difference Result 6096 states and 8566 transitions. [2021-11-02 23:08:07,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:08:07,884 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:08:07,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:08:07,888 INFO L225 Difference]: With dead ends: 6096 [2021-11-02 23:08:07,889 INFO L226 Difference]: Without dead ends: 5762 [2021-11-02 23:08:07,889 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:08:07,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5762 states. [2021-11-02 23:08:08,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5762 to 2455. [2021-11-02 23:08:08,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2455 states, 2426 states have (on average 1.3713932399010718) internal successors, (3327), 2454 states have internal predecessors, (3327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:08,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 3327 transitions. [2021-11-02 23:08:08,915 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 3327 transitions. Word has length 116 [2021-11-02 23:08:08,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:08:08,915 INFO L470 AbstractCegarLoop]: Abstraction has 2455 states and 3327 transitions. [2021-11-02 23:08:08,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:08,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 3327 transitions. [2021-11-02 23:08:08,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:08:08,917 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:08:08,917 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:08:08,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-11-02 23:08:08,917 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:08:08,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:08,918 INFO L85 PathProgramCache]: Analyzing trace with hash -798648475, now seen corresponding path program 1 times [2021-11-02 23:08:08,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:08,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113391362] [2021-11-02 23:08:08,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:08,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:09,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:09,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:08:09,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113391362] [2021-11-02 23:08:09,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113391362] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:08:09,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:08:09,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:08:09,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506366490] [2021-11-02 23:08:09,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:08:09,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:08:09,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:08:09,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:08:09,063 INFO L87 Difference]: Start difference. First operand 2455 states and 3327 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:17,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:08:17,995 INFO L93 Difference]: Finished difference Result 6096 states and 8564 transitions. [2021-11-02 23:08:17,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:08:17,996 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:08:17,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:08:18,000 INFO L225 Difference]: With dead ends: 6096 [2021-11-02 23:08:18,000 INFO L226 Difference]: Without dead ends: 5762 [2021-11-02 23:08:18,001 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:08:18,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5762 states. [2021-11-02 23:08:19,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5762 to 2459. [2021-11-02 23:08:19,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2459 states, 2430 states have (on average 1.3707818930041151) internal successors, (3331), 2458 states have internal predecessors, (3331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:19,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2459 states to 2459 states and 3331 transitions. [2021-11-02 23:08:19,015 INFO L78 Accepts]: Start accepts. Automaton has 2459 states and 3331 transitions. Word has length 116 [2021-11-02 23:08:19,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:08:19,015 INFO L470 AbstractCegarLoop]: Abstraction has 2459 states and 3331 transitions. [2021-11-02 23:08:19,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:19,015 INFO L276 IsEmpty]: Start isEmpty. Operand 2459 states and 3331 transitions. [2021-11-02 23:08:19,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:08:19,017 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:08:19,017 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:08:19,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-11-02 23:08:19,017 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:08:19,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:19,018 INFO L85 PathProgramCache]: Analyzing trace with hash 414565867, now seen corresponding path program 1 times [2021-11-02 23:08:19,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:19,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552941844] [2021-11-02 23:08:19,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:19,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:19,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:19,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:08:19,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552941844] [2021-11-02 23:08:19,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552941844] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:08:19,135 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:08:19,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:08:19,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167666728] [2021-11-02 23:08:19,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:08:19,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:08:19,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:08:19,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:08:19,138 INFO L87 Difference]: Start difference. First operand 2459 states and 3331 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:24,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:08:24,105 INFO L93 Difference]: Finished difference Result 4450 states and 6171 transitions. [2021-11-02 23:08:24,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:08:24,105 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:08:24,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:08:24,108 INFO L225 Difference]: With dead ends: 4450 [2021-11-02 23:08:24,108 INFO L226 Difference]: Without dead ends: 4114 [2021-11-02 23:08:24,109 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:08:24,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4114 states. [2021-11-02 23:08:25,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4114 to 2459. [2021-11-02 23:08:25,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2459 states, 2430 states have (on average 1.3703703703703705) internal successors, (3330), 2458 states have internal predecessors, (3330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:25,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2459 states to 2459 states and 3330 transitions. [2021-11-02 23:08:25,142 INFO L78 Accepts]: Start accepts. Automaton has 2459 states and 3330 transitions. Word has length 116 [2021-11-02 23:08:25,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:08:25,143 INFO L470 AbstractCegarLoop]: Abstraction has 2459 states and 3330 transitions. [2021-11-02 23:08:25,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:25,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2459 states and 3330 transitions. [2021-11-02 23:08:25,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:08:25,144 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:08:25,145 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:08:25,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-11-02 23:08:25,145 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:08:25,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:25,145 INFO L85 PathProgramCache]: Analyzing trace with hash -850530608, now seen corresponding path program 1 times [2021-11-02 23:08:25,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:25,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487970348] [2021-11-02 23:08:25,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:25,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:25,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:25,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:08:25,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487970348] [2021-11-02 23:08:25,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487970348] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:08:25,299 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:08:25,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:08:25,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692703081] [2021-11-02 23:08:25,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:08:25,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:08:25,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:08:25,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:08:25,300 INFO L87 Difference]: Start difference. First operand 2459 states and 3330 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:34,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:08:34,399 INFO L93 Difference]: Finished difference Result 5772 states and 8073 transitions. [2021-11-02 23:08:34,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:08:34,400 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:08:34,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:08:34,404 INFO L225 Difference]: With dead ends: 5772 [2021-11-02 23:08:34,404 INFO L226 Difference]: Without dead ends: 5767 [2021-11-02 23:08:34,405 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:08:34,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5767 states. [2021-11-02 23:08:35,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5767 to 2463. [2021-11-02 23:08:35,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2463 states, 2434 states have (on average 1.3697617091207888) internal successors, (3334), 2462 states have internal predecessors, (3334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:35,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 3334 transitions. [2021-11-02 23:08:35,470 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 3334 transitions. Word has length 116 [2021-11-02 23:08:35,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:08:35,471 INFO L470 AbstractCegarLoop]: Abstraction has 2463 states and 3334 transitions. [2021-11-02 23:08:35,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:35,471 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 3334 transitions. [2021-11-02 23:08:35,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:08:35,474 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:08:35,474 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:08:35,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-11-02 23:08:35,475 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:08:35,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:35,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1063259943, now seen corresponding path program 1 times [2021-11-02 23:08:35,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:35,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978927096] [2021-11-02 23:08:35,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:35,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:35,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:35,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:08:35,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978927096] [2021-11-02 23:08:35,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978927096] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:08:35,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:08:35,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:08:35,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119223782] [2021-11-02 23:08:35,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:08:35,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:08:35,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:08:35,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:08:35,644 INFO L87 Difference]: Start difference. First operand 2463 states and 3334 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:46,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:08:46,174 INFO L93 Difference]: Finished difference Result 6436 states and 8997 transitions. [2021-11-02 23:08:46,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-02 23:08:46,174 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:08:46,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:08:46,180 INFO L225 Difference]: With dead ends: 6436 [2021-11-02 23:08:46,180 INFO L226 Difference]: Without dead ends: 6100 [2021-11-02 23:08:46,181 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 23:08:46,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6100 states. [2021-11-02 23:08:47,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6100 to 2467. [2021-11-02 23:08:47,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2467 states, 2438 states have (on average 1.36915504511895) internal successors, (3338), 2466 states have internal predecessors, (3338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:47,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 3338 transitions. [2021-11-02 23:08:47,276 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 3338 transitions. Word has length 116 [2021-11-02 23:08:47,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:08:47,276 INFO L470 AbstractCegarLoop]: Abstraction has 2467 states and 3338 transitions. [2021-11-02 23:08:47,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:47,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 3338 transitions. [2021-11-02 23:08:47,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:08:47,278 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:08:47,278 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:08:47,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-11-02 23:08:47,278 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:08:47,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:47,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1650345474, now seen corresponding path program 1 times [2021-11-02 23:08:47,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:47,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358341740] [2021-11-02 23:08:47,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:47,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:47,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:47,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:08:47,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358341740] [2021-11-02 23:08:47,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358341740] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:08:47,381 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:08:47,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:08:47,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034764880] [2021-11-02 23:08:47,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:08:47,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:08:47,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:08:47,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:08:47,382 INFO L87 Difference]: Start difference. First operand 2467 states and 3338 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:52,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:08:52,397 INFO L93 Difference]: Finished difference Result 4448 states and 6166 transitions. [2021-11-02 23:08:52,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:08:52,397 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:08:52,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:08:52,400 INFO L225 Difference]: With dead ends: 4448 [2021-11-02 23:08:52,401 INFO L226 Difference]: Without dead ends: 4114 [2021-11-02 23:08:52,401 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:08:52,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4114 states. [2021-11-02 23:08:53,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4114 to 2467. [2021-11-02 23:08:53,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2467 states, 2438 states have (on average 1.3687448728465956) internal successors, (3337), 2466 states have internal predecessors, (3337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:53,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 3337 transitions. [2021-11-02 23:08:53,445 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 3337 transitions. Word has length 116 [2021-11-02 23:08:53,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:08:53,445 INFO L470 AbstractCegarLoop]: Abstraction has 2467 states and 3337 transitions. [2021-11-02 23:08:53,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:53,446 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 3337 transitions. [2021-11-02 23:08:53,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:08:53,447 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:08:53,447 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:08:53,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-11-02 23:08:53,447 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:08:53,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:53,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1654269712, now seen corresponding path program 1 times [2021-11-02 23:08:53,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:53,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010674545] [2021-11-02 23:08:53,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:53,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:53,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:53,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:08:53,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010674545] [2021-11-02 23:08:53,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010674545] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:08:53,549 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:08:53,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:08:53,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274698583] [2021-11-02 23:08:53,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:08:53,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:08:53,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:08:53,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:08:53,550 INFO L87 Difference]: Start difference. First operand 2467 states and 3337 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:58,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:08:58,519 INFO L93 Difference]: Finished difference Result 4119 states and 5672 transitions. [2021-11-02 23:08:58,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:08:58,520 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:08:58,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:08:58,523 INFO L225 Difference]: With dead ends: 4119 [2021-11-02 23:08:58,523 INFO L226 Difference]: Without dead ends: 4114 [2021-11-02 23:08:58,524 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:08:58,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4114 states. [2021-11-02 23:08:59,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4114 to 2467. [2021-11-02 23:08:59,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2467 states, 2438 states have (on average 1.3679245283018868) internal successors, (3335), 2466 states have internal predecessors, (3335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:59,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 3335 transitions. [2021-11-02 23:08:59,604 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 3335 transitions. Word has length 116 [2021-11-02 23:08:59,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:08:59,604 INFO L470 AbstractCegarLoop]: Abstraction has 2467 states and 3335 transitions. [2021-11-02 23:08:59,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:59,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 3335 transitions. [2021-11-02 23:08:59,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:08:59,606 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:08:59,606 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:08:59,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-11-02 23:08:59,607 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:08:59,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:59,607 INFO L85 PathProgramCache]: Analyzing trace with hash 257927390, now seen corresponding path program 1 times [2021-11-02 23:08:59,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:59,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328109043] [2021-11-02 23:08:59,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:59,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:59,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:59,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:59,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:08:59,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328109043] [2021-11-02 23:08:59,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328109043] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:08:59,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:08:59,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:08:59,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997351778] [2021-11-02 23:08:59,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:08:59,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:08:59,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:08:59,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:08:59,745 INFO L87 Difference]: Start difference. First operand 2467 states and 3335 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:10,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:10,236 INFO L93 Difference]: Finished difference Result 6444 states and 9001 transitions. [2021-11-02 23:09:10,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:09:10,237 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:09:10,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:10,242 INFO L225 Difference]: With dead ends: 6444 [2021-11-02 23:09:10,242 INFO L226 Difference]: Without dead ends: 6427 [2021-11-02 23:09:10,243 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:09:10,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6427 states. [2021-11-02 23:09:11,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6427 to 2475. [2021-11-02 23:09:11,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2475 states, 2446 states have (on average 1.366721177432543) internal successors, (3343), 2474 states have internal predecessors, (3343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:11,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2475 states to 2475 states and 3343 transitions. [2021-11-02 23:09:11,357 INFO L78 Accepts]: Start accepts. Automaton has 2475 states and 3343 transitions. Word has length 116 [2021-11-02 23:09:11,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:11,357 INFO L470 AbstractCegarLoop]: Abstraction has 2475 states and 3343 transitions. [2021-11-02 23:09:11,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:11,357 INFO L276 IsEmpty]: Start isEmpty. Operand 2475 states and 3343 transitions. [2021-11-02 23:09:11,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:09:11,359 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:11,359 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:09:11,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-11-02 23:09:11,359 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:09:11,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:11,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1144192638, now seen corresponding path program 1 times [2021-11-02 23:09:11,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:11,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457403130] [2021-11-02 23:09:11,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:11,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:11,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:11,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:11,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457403130] [2021-11-02 23:09:11,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457403130] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:09:11,461 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:09:11,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:09:11,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653575683] [2021-11-02 23:09:11,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:09:11,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:09:11,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:09:11,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:09:11,462 INFO L87 Difference]: Start difference. First operand 2475 states and 3343 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:16,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:16,570 INFO L93 Difference]: Finished difference Result 4460 states and 6175 transitions. [2021-11-02 23:09:16,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:09:16,571 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:09:16,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:16,574 INFO L225 Difference]: With dead ends: 4460 [2021-11-02 23:09:16,574 INFO L226 Difference]: Without dead ends: 4122 [2021-11-02 23:09:16,575 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:09:16,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4122 states. [2021-11-02 23:09:17,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4122 to 2475. [2021-11-02 23:09:17,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2475 states, 2446 states have (on average 1.365903515944399) internal successors, (3341), 2474 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:17,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2475 states to 2475 states and 3341 transitions. [2021-11-02 23:09:17,638 INFO L78 Accepts]: Start accepts. Automaton has 2475 states and 3341 transitions. Word has length 116 [2021-11-02 23:09:17,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:17,639 INFO L470 AbstractCegarLoop]: Abstraction has 2475 states and 3341 transitions. [2021-11-02 23:09:17,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:17,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2475 states and 3341 transitions. [2021-11-02 23:09:17,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:09:17,641 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:17,641 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:09:17,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-11-02 23:09:17,641 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:09:17,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:17,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1885561009, now seen corresponding path program 1 times [2021-11-02 23:09:17,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:17,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357080539] [2021-11-02 23:09:17,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:17,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:17,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:17,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:17,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:17,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357080539] [2021-11-02 23:09:17,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357080539] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:09:17,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:09:17,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:09:17,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640459848] [2021-11-02 23:09:17,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:09:17,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:09:17,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:09:17,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:09:17,806 INFO L87 Difference]: Start difference. First operand 2475 states and 3341 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:27,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:27,461 INFO L93 Difference]: Finished difference Result 5780 states and 8074 transitions. [2021-11-02 23:09:27,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:09:27,462 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:09:27,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:27,466 INFO L225 Difference]: With dead ends: 5780 [2021-11-02 23:09:27,466 INFO L226 Difference]: Without dead ends: 5775 [2021-11-02 23:09:27,467 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:09:27,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5775 states. [2021-11-02 23:09:28,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5775 to 2483. [2021-11-02 23:09:28,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2483 states, 2454 states have (on average 1.3647106764466177) internal successors, (3349), 2482 states have internal predecessors, (3349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:28,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 3349 transitions. [2021-11-02 23:09:28,600 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 3349 transitions. Word has length 116 [2021-11-02 23:09:28,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:28,601 INFO L470 AbstractCegarLoop]: Abstraction has 2483 states and 3349 transitions. [2021-11-02 23:09:28,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:28,601 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 3349 transitions. [2021-11-02 23:09:28,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:09:28,602 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:28,603 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:09:28,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-11-02 23:09:28,603 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:09:28,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:28,603 INFO L85 PathProgramCache]: Analyzing trace with hash 975324948, now seen corresponding path program 1 times [2021-11-02 23:09:28,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:28,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367136490] [2021-11-02 23:09:28,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:28,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:28,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:28,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:28,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367136490] [2021-11-02 23:09:28,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367136490] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:09:28,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:09:28,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:09:28,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973470407] [2021-11-02 23:09:28,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:09:28,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:09:28,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:09:28,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:09:28,722 INFO L87 Difference]: Start difference. First operand 2483 states and 3349 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:33,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:33,962 INFO L93 Difference]: Finished difference Result 4456 states and 6167 transitions. [2021-11-02 23:09:33,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:09:33,962 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:09:33,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:33,965 INFO L225 Difference]: With dead ends: 4456 [2021-11-02 23:09:33,965 INFO L226 Difference]: Without dead ends: 4122 [2021-11-02 23:09:33,966 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:09:33,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4122 states. [2021-11-02 23:09:35,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4122 to 2483. [2021-11-02 23:09:35,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2483 states, 2454 states have (on average 1.3638956805215974) internal successors, (3347), 2482 states have internal predecessors, (3347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:35,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 3347 transitions. [2021-11-02 23:09:35,080 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 3347 transitions. Word has length 116 [2021-11-02 23:09:35,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:35,080 INFO L470 AbstractCegarLoop]: Abstraction has 2483 states and 3347 transitions. [2021-11-02 23:09:35,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:35,081 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 3347 transitions. [2021-11-02 23:09:35,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:09:35,082 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:35,082 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:09:35,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-11-02 23:09:35,082 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:09:35,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:35,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1723135778, now seen corresponding path program 1 times [2021-11-02 23:09:35,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:35,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261595954] [2021-11-02 23:09:35,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:35,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:35,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:35,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:35,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261595954] [2021-11-02 23:09:35,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261595954] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:09:35,253 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:09:35,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:09:35,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083179260] [2021-11-02 23:09:35,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:09:35,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:09:35,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:09:35,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:09:35,254 INFO L87 Difference]: Start difference. First operand 2483 states and 3347 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:44,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:44,994 INFO L93 Difference]: Finished difference Result 6112 states and 8567 transitions. [2021-11-02 23:09:44,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:09:44,995 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:09:44,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:44,999 INFO L225 Difference]: With dead ends: 6112 [2021-11-02 23:09:44,999 INFO L226 Difference]: Without dead ends: 5774 [2021-11-02 23:09:45,000 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:09:45,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5774 states. [2021-11-02 23:09:46,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5774 to 2491. [2021-11-02 23:09:46,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2491 states, 2462 states have (on average 1.3627132412672625) internal successors, (3355), 2490 states have internal predecessors, (3355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:46,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 3355 transitions. [2021-11-02 23:09:46,158 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 3355 transitions. Word has length 116 [2021-11-02 23:09:46,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:46,158 INFO L470 AbstractCegarLoop]: Abstraction has 2491 states and 3355 transitions. [2021-11-02 23:09:46,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:46,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 3355 transitions. [2021-11-02 23:09:46,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:09:46,160 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:46,160 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:09:46,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-11-02 23:09:46,160 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:09:46,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:46,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1923137442, now seen corresponding path program 1 times [2021-11-02 23:09:46,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:46,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756035390] [2021-11-02 23:09:46,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:46,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:46,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:46,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:46,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756035390] [2021-11-02 23:09:46,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756035390] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:09:46,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:09:46,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:09:46,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43066868] [2021-11-02 23:09:46,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:09:46,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:09:46,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:09:46,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:09:46,261 INFO L87 Difference]: Start difference. First operand 2491 states and 3355 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:51,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:51,506 INFO L93 Difference]: Finished difference Result 4460 states and 6167 transitions. [2021-11-02 23:09:51,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:09:51,506 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:09:51,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:51,509 INFO L225 Difference]: With dead ends: 4460 [2021-11-02 23:09:51,510 INFO L226 Difference]: Without dead ends: 4122 [2021-11-02 23:09:51,510 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:09:51,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4122 states. [2021-11-02 23:09:52,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4122 to 2491. [2021-11-02 23:09:52,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2491 states, 2462 states have (on average 1.3619008935824533) internal successors, (3353), 2490 states have internal predecessors, (3353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:52,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 3353 transitions. [2021-11-02 23:09:52,657 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 3353 transitions. Word has length 116 [2021-11-02 23:09:52,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:52,658 INFO L470 AbstractCegarLoop]: Abstraction has 2491 states and 3353 transitions. [2021-11-02 23:09:52,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:52,658 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 3353 transitions. [2021-11-02 23:09:52,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:09:52,659 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:52,659 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:09:52,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-11-02 23:09:52,660 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:09:52,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:52,660 INFO L85 PathProgramCache]: Analyzing trace with hash 658258434, now seen corresponding path program 1 times [2021-11-02 23:09:52,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:52,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633074295] [2021-11-02 23:09:52,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:52,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:52,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:52,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:52,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633074295] [2021-11-02 23:09:52,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633074295] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:09:52,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:09:52,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:09:52,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351301028] [2021-11-02 23:09:52,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:09:52,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:09:52,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:09:52,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:09:52,805 INFO L87 Difference]: Start difference. First operand 2491 states and 3353 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:03,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:10:03,061 INFO L93 Difference]: Finished difference Result 5780 states and 8066 transitions. [2021-11-02 23:10:03,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:10:03,061 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:10:03,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:10:03,066 INFO L225 Difference]: With dead ends: 5780 [2021-11-02 23:10:03,066 INFO L226 Difference]: Without dead ends: 5775 [2021-11-02 23:10:03,067 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:10:03,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5775 states. [2021-11-02 23:10:04,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5775 to 2499. [2021-11-02 23:10:04,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2499 states, 2470 states have (on average 1.3607287449392713) internal successors, (3361), 2498 states have internal predecessors, (3361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:04,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2499 states to 2499 states and 3361 transitions. [2021-11-02 23:10:04,227 INFO L78 Accepts]: Start accepts. Automaton has 2499 states and 3361 transitions. Word has length 116 [2021-11-02 23:10:04,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:10:04,227 INFO L470 AbstractCegarLoop]: Abstraction has 2499 states and 3361 transitions. [2021-11-02 23:10:04,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:04,227 INFO L276 IsEmpty]: Start isEmpty. Operand 2499 states and 3361 transitions. [2021-11-02 23:10:04,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:10:04,229 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:04,229 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:10:04,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-11-02 23:10:04,229 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:10:04,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:04,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1851374526, now seen corresponding path program 1 times [2021-11-02 23:10:04,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:04,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854554796] [2021-11-02 23:10:04,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:04,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:04,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:10:04,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:04,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854554796] [2021-11-02 23:10:04,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854554796] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:10:04,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:10:04,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-02 23:10:04,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227696866] [2021-11-02 23:10:04,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:10:04,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:04,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:10:04,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:10:04,392 INFO L87 Difference]: Start difference. First operand 2499 states and 3361 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:14,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:10:14,514 INFO L93 Difference]: Finished difference Result 6108 states and 8557 transitions. [2021-11-02 23:10:14,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:10:14,530 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-02 23:10:14,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:10:14,536 INFO L225 Difference]: With dead ends: 6108 [2021-11-02 23:10:14,536 INFO L226 Difference]: Without dead ends: 5772 [2021-11-02 23:10:14,538 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:10:14,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5772 states. [2021-11-02 23:10:15,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5772 to 2503. [2021-11-02 23:10:15,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2503 states, 2474 states have (on average 1.3601455133387228) internal successors, (3365), 2502 states have internal predecessors, (3365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:15,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2503 states to 2503 states and 3365 transitions. [2021-11-02 23:10:15,730 INFO L78 Accepts]: Start accepts. Automaton has 2503 states and 3365 transitions. Word has length 116 [2021-11-02 23:10:15,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:10:15,730 INFO L470 AbstractCegarLoop]: Abstraction has 2503 states and 3365 transitions. [2021-11-02 23:10:15,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:15,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2503 states and 3365 transitions. [2021-11-02 23:10:15,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-02 23:10:15,731 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:15,732 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:10:15,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-11-02 23:10:15,732 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-02 23:10:15,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:15,732 INFO L85 PathProgramCache]: Analyzing trace with hash -2140742563, now seen corresponding path program 1 times [2021-11-02 23:10:15,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:15,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480675309] [2021-11-02 23:10:15,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:15,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:15,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:10:15,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:15,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480675309] [2021-11-02 23:10:15,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480675309] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:10:15,853 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:10:15,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:10:15,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487018837] [2021-11-02 23:10:15,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 23:10:15,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:15,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:10:15,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:10:15,855 INFO L87 Difference]: Start difference. First operand 2503 states and 3365 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)