./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5634f421-18d1-46f6-87a2-71213a8a7b9a/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5634f421-18d1-46f6-87a2-71213a8a7b9a/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5634f421-18d1-46f6-87a2-71213a8a7b9a/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5634f421-18d1-46f6-87a2-71213a8a7b9a/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5634f421-18d1-46f6-87a2-71213a8a7b9a/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5634f421-18d1-46f6-87a2-71213a8a7b9a/bin/uautomizer-AkOaLMaTGY --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 c082dc45380b26d7d2efa14a2b9a25a882bb361e7db7c29c901ddfabd3b29352 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:01:40,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:01:40,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:01:40,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:01:40,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:01:40,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:01:40,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:01:40,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:01:40,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:01:40,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:01:40,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:01:40,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:01:40,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:01:40,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:01:40,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:01:40,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:01:40,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:01:40,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:01:40,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:01:41,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:01:41,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:01:41,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:01:41,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:01:41,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:01:41,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:01:41,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:01:41,019 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:01:41,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:01:41,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:01:41,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:01:41,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:01:41,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:01:41,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:01:41,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:01:41,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:01:41,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:01:41,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:01:41,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:01:41,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:01:41,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:01:41,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:01:41,037 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5634f421-18d1-46f6-87a2-71213a8a7b9a/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 08:01:41,088 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:01:41,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:01:41,089 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:01:41,090 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:01:41,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:01:41,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:01:41,093 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:01:41,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:01:41,093 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:01:41,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:01:41,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:01:41,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:01:41,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:01:41,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:01:41,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:01:41,096 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:01:41,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:01:41,097 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:01:41,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:01:41,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:01:41,097 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:01:41,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:01:41,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:01:41,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:01:41,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:01:41,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:01:41,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:01:41,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:01:41,100 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:01:41,100 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:01:41,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:01:41,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:01:41,101 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5634f421-18d1-46f6-87a2-71213a8a7b9a/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c082dc45380b26d7d2efa14a2b9a25a882bb361e7db7c29c901ddfabd3b29352 [2021-11-07 08:01:41,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:01:41,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:01:41,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:01:41,512 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:01:41,512 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:01:41,514 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5634f421-18d1-46f6-87a2-71213a8a7b9a/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-11-07 08:01:41,618 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5634f421-18d1-46f6-87a2-71213a8a7b9a/bin/uautomizer-AkOaLMaTGY/data/13f649f24/347dceb50eac4a60af644ac0d6889bff/FLAGbb4d87baa [2021-11-07 08:01:42,462 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:01:42,462 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-11-07 08:01:42,495 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5634f421-18d1-46f6-87a2-71213a8a7b9a/bin/uautomizer-AkOaLMaTGY/data/13f649f24/347dceb50eac4a60af644ac0d6889bff/FLAGbb4d87baa [2021-11-07 08:01:42,999 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5634f421-18d1-46f6-87a2-71213a8a7b9a/bin/uautomizer-AkOaLMaTGY/data/13f649f24/347dceb50eac4a60af644ac0d6889bff [2021-11-07 08:01:43,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:01:43,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:01:43,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:01:43,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:01:43,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:01:43,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:01:43" (1/1) ... [2021-11-07 08:01:43,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dcc5d29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:01:43, skipping insertion in model container [2021-11-07 08:01:43,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:01:43" (1/1) ... [2021-11-07 08:01:43,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:01:43,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:01:43,836 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33110,33123] [2021-11-07 08:01:43,915 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[47435,47448] [2021-11-07 08:01:43,949 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[54586,54599] [2021-11-07 08:01:43,966 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[58145,58158] [2021-11-07 08:01:43,982 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[61485,61498] [2021-11-07 08:01:44,088 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[76732,76745] [2021-11-07 08:01:44,117 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[83878,83891] [2021-11-07 08:01:44,133 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[87432,87445] [2021-11-07 08:01:44,148 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[90767,90780] [2021-11-07 08:01:44,167 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[94900,94913] [2021-11-07 08:01:44,183 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98301,98314] [2021-11-07 08:01:44,199 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[101855,101868] [2021-11-07 08:01:44,212 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[105190,105203] [2021-11-07 08:01:44,228 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[108944,108957] [2021-11-07 08:01:44,242 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[112294,112307] [2021-11-07 08:01:44,257 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[115829,115842] [2021-11-07 08:01:44,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:01:44,347 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:01:44,652 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33110,33123] [2021-11-07 08:01:44,725 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[47435,47448] [2021-11-07 08:01:44,749 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[54586,54599] [2021-11-07 08:01:44,761 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[58145,58158] [2021-11-07 08:01:44,773 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[61485,61498] [2021-11-07 08:01:44,819 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[76732,76745] [2021-11-07 08:01:44,847 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[83878,83891] [2021-11-07 08:01:44,860 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[87432,87445] [2021-11-07 08:01:44,871 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[90767,90780] [2021-11-07 08:01:44,885 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[94900,94913] [2021-11-07 08:01:44,896 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98301,98314] [2021-11-07 08:01:44,910 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[101855,101868] [2021-11-07 08:01:44,922 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[105190,105203] [2021-11-07 08:01:44,936 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[108944,108957] [2021-11-07 08:01:44,949 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[112294,112307] [2021-11-07 08:01:44,960 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_5634f421-18d1-46f6-87a2-71213a8a7b9a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[115829,115842] [2021-11-07 08:01:44,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:01:45,013 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:01:45,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:01:45 WrapperNode [2021-11-07 08:01:45,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:01:45,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:01:45,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:01:45,016 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:01:45,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:01:45" (1/1) ... [2021-11-07 08:01:45,106 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:01:45" (1/1) ... [2021-11-07 08:01:45,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:01:45,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:01:45,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:01:45,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:01:45,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:01:45" (1/1) ... [2021-11-07 08:01:45,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:01:45" (1/1) ... [2021-11-07 08:01:45,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:01:45" (1/1) ... [2021-11-07 08:01:45,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:01:45" (1/1) ... [2021-11-07 08:01:45,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:01:45" (1/1) ... [2021-11-07 08:01:45,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:01:45" (1/1) ... [2021-11-07 08:01:45,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:01:45" (1/1) ... [2021-11-07 08:01:45,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:01:45,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:01:45,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:01:45,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:01:45,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:01:45" (1/1) ... [2021-11-07 08:01:45,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:01:45,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5634f421-18d1-46f6-87a2-71213a8a7b9a/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:01:45,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5634f421-18d1-46f6-87a2-71213a8a7b9a/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:01:45,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5634f421-18d1-46f6-87a2-71213a8a7b9a/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:01:45,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:01:45,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:01:45,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:01:45,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:01:48,935 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:01:48,935 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-07 08:01:48,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:01:48 BoogieIcfgContainer [2021-11-07 08:01:48,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:01:48,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:01:48,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:01:48,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:01:48,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:01:43" (1/3) ... [2021-11-07 08:01:48,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d7ca4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:01:48, skipping insertion in model container [2021-11-07 08:01:48,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:01:45" (2/3) ... [2021-11-07 08:01:48,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d7ca4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:01:48, skipping insertion in model container [2021-11-07 08:01:48,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:01:48" (3/3) ... [2021-11-07 08:01:48,952 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-11-07 08:01:48,959 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:01:48,959 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-11-07 08:01:49,043 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:01:49,052 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 [2021-11-07 08:01:49,052 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-11-07 08:01:49,108 INFO L276 IsEmpty]: Start isEmpty. Operand has 1111 states, 1094 states have (on average 1.8272394881170018) internal successors, (1999), 1110 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:49,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 08:01:49,147 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:01:49,148 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] [2021-11-07 08:01:49,149 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:01:49,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:01:49,155 INFO L85 PathProgramCache]: Analyzing trace with hash -659325864, now seen corresponding path program 1 times [2021-11-07 08:01:49,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:01:49,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140317872] [2021-11-07 08:01:49,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:01:49,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:01:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:01:49,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:01:49,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:01:49,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140317872] [2021-11-07 08:01:49,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140317872] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:01:49,750 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:01:49,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:01:49,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804570774] [2021-11-07 08:01:49,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 08:01:49,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:01:49,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:01:49,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:01:49,793 INFO L87 Difference]: Start difference. First operand has 1111 states, 1094 states have (on average 1.8272394881170018) internal successors, (1999), 1110 states have internal predecessors, (1999), 0 states have call successors, (0), 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 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:51,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:01:51,022 INFO L93 Difference]: Finished difference Result 1449 states and 2552 transitions. [2021-11-07 08:01:51,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:01:51,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-07 08:01:51,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:01:51,047 INFO L225 Difference]: With dead ends: 1449 [2021-11-07 08:01:51,048 INFO L226 Difference]: Without dead ends: 871 [2021-11-07 08:01:51,054 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 [2021-11-07 08:01:51,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2021-11-07 08:01:51,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 871. [2021-11-07 08:01:51,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 855 states have (on average 1.3192982456140352) internal successors, (1128), 870 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:51,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1128 transitions. [2021-11-07 08:01:51,174 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1128 transitions. Word has length 72 [2021-11-07 08:01:51,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:01:51,175 INFO L470 AbstractCegarLoop]: Abstraction has 871 states and 1128 transitions. [2021-11-07 08:01:51,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:51,175 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1128 transitions. [2021-11-07 08:01:51,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 08:01:51,181 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:01:51,181 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] [2021-11-07 08:01:51,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:01:51,184 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:01:51,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:01:51,189 INFO L85 PathProgramCache]: Analyzing trace with hash -954340830, now seen corresponding path program 1 times [2021-11-07 08:01:51,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:01:51,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943505719] [2021-11-07 08:01:51,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:01:51,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:01:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:01:51,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:01:51,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:01:51,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943505719] [2021-11-07 08:01:51,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943505719] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:01:51,414 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:01:51,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:01:51,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952672511] [2021-11-07 08:01:51,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 08:01:51,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:01:51,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:01:51,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:01:51,417 INFO L87 Difference]: Start difference. First operand 871 states and 1128 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:52,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:01:52,367 INFO L93 Difference]: Finished difference Result 1240 states and 1621 transitions. [2021-11-07 08:01:52,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:01:52,369 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-07 08:01:52,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:01:52,376 INFO L225 Difference]: With dead ends: 1240 [2021-11-07 08:01:52,376 INFO L226 Difference]: Without dead ends: 807 [2021-11-07 08:01:52,379 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 [2021-11-07 08:01:52,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2021-11-07 08:01:52,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 807. [2021-11-07 08:01:52,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 791 states have (on average 1.3337547408343868) internal successors, (1055), 806 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:52,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1055 transitions. [2021-11-07 08:01:52,439 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1055 transitions. Word has length 72 [2021-11-07 08:01:52,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:01:52,440 INFO L470 AbstractCegarLoop]: Abstraction has 807 states and 1055 transitions. [2021-11-07 08:01:52,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:52,441 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1055 transitions. [2021-11-07 08:01:52,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 08:01:52,446 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:01:52,447 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] [2021-11-07 08:01:52,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 08:01:52,447 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:01:52,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:01:52,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1430025351, now seen corresponding path program 1 times [2021-11-07 08:01:52,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:01:52,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599022599] [2021-11-07 08:01:52,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:01:52,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:01:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:01:52,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:01:52,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:01:52,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599022599] [2021-11-07 08:01:52,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599022599] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:01:52,645 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:01:52,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:01:52,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969218015] [2021-11-07 08:01:52,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 08:01:52,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:01:52,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:01:52,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:01:52,649 INFO L87 Difference]: Start difference. First operand 807 states and 1055 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:53,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:01:53,193 INFO L93 Difference]: Finished difference Result 1008 states and 1307 transitions. [2021-11-07 08:01:53,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:01:53,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-07 08:01:53,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:01:53,198 INFO L225 Difference]: With dead ends: 1008 [2021-11-07 08:01:53,198 INFO L226 Difference]: Without dead ends: 597 [2021-11-07 08:01:53,200 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 [2021-11-07 08:01:53,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2021-11-07 08:01:53,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 597. [2021-11-07 08:01:53,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 581 states have (on average 1.342512908777969) internal successors, (780), 596 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:53,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 780 transitions. [2021-11-07 08:01:53,236 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 780 transitions. Word has length 72 [2021-11-07 08:01:53,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:01:53,237 INFO L470 AbstractCegarLoop]: Abstraction has 597 states and 780 transitions. [2021-11-07 08:01:53,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:53,237 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 780 transitions. [2021-11-07 08:01:53,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-07 08:01:53,239 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:01:53,240 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] [2021-11-07 08:01:53,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 08:01:53,240 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:01:53,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:01:53,241 INFO L85 PathProgramCache]: Analyzing trace with hash 185238750, now seen corresponding path program 1 times [2021-11-07 08:01:53,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:01:53,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914693984] [2021-11-07 08:01:53,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:01:53,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:01:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:01:53,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:01:53,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:01:53,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914693984] [2021-11-07 08:01:53,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914693984] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:01:53,401 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:01:53,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 08:01:53,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720949166] [2021-11-07 08:01:53,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:01:53,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:01:53,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:01:53,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:01:53,409 INFO L87 Difference]: Start difference. First operand 597 states and 780 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:54,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:01:54,164 INFO L93 Difference]: Finished difference Result 1102 states and 1447 transitions. [2021-11-07 08:01:54,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:01:54,165 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-07 08:01:54,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:01:54,171 INFO L225 Difference]: With dead ends: 1102 [2021-11-07 08:01:54,171 INFO L226 Difference]: Without dead ends: 785 [2021-11-07 08:01:54,173 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 [2021-11-07 08:01:54,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2021-11-07 08:01:54,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 731. [2021-11-07 08:01:54,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 715 states have (on average 1.3874125874125873) internal successors, (992), 730 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:54,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 992 transitions. [2021-11-07 08:01:54,229 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 992 transitions. Word has length 73 [2021-11-07 08:01:54,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:01:54,229 INFO L470 AbstractCegarLoop]: Abstraction has 731 states and 992 transitions. [2021-11-07 08:01:54,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:54,230 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 992 transitions. [2021-11-07 08:01:54,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 08:01:54,233 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:01:54,233 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] [2021-11-07 08:01:54,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 08:01:54,234 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:01:54,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:01:54,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1771205904, now seen corresponding path program 1 times [2021-11-07 08:01:54,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:01:54,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656248410] [2021-11-07 08:01:54,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:01:54,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:01:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:01:54,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:01:54,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:01:54,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656248410] [2021-11-07 08:01:54,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656248410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:01:54,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:01:54,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 08:01:54,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796577791] [2021-11-07 08:01:54,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:01:54,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:01:54,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:01:54,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:01:54,382 INFO L87 Difference]: Start difference. First operand 731 states and 992 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:54,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:01:54,898 INFO L93 Difference]: Finished difference Result 1230 states and 1647 transitions. [2021-11-07 08:01:54,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:01:54,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-11-07 08:01:54,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:01:54,907 INFO L225 Difference]: With dead ends: 1230 [2021-11-07 08:01:54,908 INFO L226 Difference]: Without dead ends: 838 [2021-11-07 08:01:54,917 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 [2021-11-07 08:01:54,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2021-11-07 08:01:54,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 778. [2021-11-07 08:01:54,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 762 states have (on average 1.4120734908136483) internal successors, (1076), 777 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:54,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1076 transitions. [2021-11-07 08:01:54,981 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1076 transitions. Word has length 74 [2021-11-07 08:01:54,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:01:54,981 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1076 transitions. [2021-11-07 08:01:54,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:54,983 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1076 transitions. [2021-11-07 08:01:54,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 08:01:54,985 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:01:54,986 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] [2021-11-07 08:01:54,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 08:01:54,986 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:01:54,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:01:54,987 INFO L85 PathProgramCache]: Analyzing trace with hash 892076084, now seen corresponding path program 1 times [2021-11-07 08:01:54,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:01:54,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681479488] [2021-11-07 08:01:54,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:01:54,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:01:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:01:55,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:01:55,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:01:55,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681479488] [2021-11-07 08:01:55,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681479488] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:01:55,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:01:55,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 08:01:55,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861748620] [2021-11-07 08:01:55,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 08:01:55,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:01:55,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 08:01:55,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-07 08:01:55,224 INFO L87 Difference]: Start difference. First operand 778 states and 1076 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:56,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:01:56,118 INFO L93 Difference]: Finished difference Result 1654 states and 2283 transitions. [2021-11-07 08:01:56,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 08:01:56,119 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-07 08:01:56,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:01:56,129 INFO L225 Difference]: With dead ends: 1654 [2021-11-07 08:01:56,129 INFO L226 Difference]: Without dead ends: 1159 [2021-11-07 08:01:56,131 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 [2021-11-07 08:01:56,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2021-11-07 08:01:56,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 778. [2021-11-07 08:01:56,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 762 states have (on average 1.4107611548556431) internal successors, (1075), 777 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:56,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1075 transitions. [2021-11-07 08:01:56,222 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1075 transitions. Word has length 75 [2021-11-07 08:01:56,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:01:56,224 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1075 transitions. [2021-11-07 08:01:56,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:56,224 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1075 transitions. [2021-11-07 08:01:56,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 08:01:56,234 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:01:56,234 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] [2021-11-07 08:01:56,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 08:01:56,235 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:01:56,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:01:56,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1107897332, now seen corresponding path program 1 times [2021-11-07 08:01:56,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:01:56,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883595363] [2021-11-07 08:01:56,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:01:56,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:01:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:01:56,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:01:56,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:01:56,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883595363] [2021-11-07 08:01:56,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883595363] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:01:56,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:01:56,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:01:56,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495069094] [2021-11-07 08:01:56,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:01:56,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:01:56,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:01:56,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:01:56,484 INFO L87 Difference]: Start difference. First operand 778 states and 1075 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:57,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:01:57,870 INFO L93 Difference]: Finished difference Result 1602 states and 2280 transitions. [2021-11-07 08:01:57,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 08:01:57,871 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-07 08:01:57,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:01:57,881 INFO L225 Difference]: With dead ends: 1602 [2021-11-07 08:01:57,881 INFO L226 Difference]: Without dead ends: 1324 [2021-11-07 08:01:57,883 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-07 08:01:57,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2021-11-07 08:01:57,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 778. [2021-11-07 08:01:57,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 762 states have (on average 1.4094488188976377) internal successors, (1074), 777 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:57,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1074 transitions. [2021-11-07 08:01:57,986 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1074 transitions. Word has length 75 [2021-11-07 08:01:57,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:01:57,986 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1074 transitions. [2021-11-07 08:01:57,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:57,987 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1074 transitions. [2021-11-07 08:01:57,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 08:01:57,989 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:01:57,989 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] [2021-11-07 08:01:57,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 08:01:57,990 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:01:57,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:01:57,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1055548212, now seen corresponding path program 1 times [2021-11-07 08:01:57,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:01:57,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983922400] [2021-11-07 08:01:57,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:01:57,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:01:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:01:58,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:01:58,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:01:58,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983922400] [2021-11-07 08:01:58,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983922400] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:01:58,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:01:58,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:01:58,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251862664] [2021-11-07 08:01:58,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:01:58,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:01:58,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:01:58,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:01:58,176 INFO L87 Difference]: Start difference. First operand 778 states and 1074 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:59,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:01:59,706 INFO L93 Difference]: Finished difference Result 2111 states and 3022 transitions. [2021-11-07 08:01:59,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 08:01:59,707 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-07 08:01:59,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:01:59,717 INFO L225 Difference]: With dead ends: 2111 [2021-11-07 08:01:59,717 INFO L226 Difference]: Without dead ends: 1782 [2021-11-07 08:01:59,720 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 [2021-11-07 08:01:59,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1782 states. [2021-11-07 08:01:59,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1782 to 778. [2021-11-07 08:01:59,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 762 states have (on average 1.4081364829396326) internal successors, (1073), 777 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:59,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1073 transitions. [2021-11-07 08:01:59,814 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1073 transitions. Word has length 75 [2021-11-07 08:01:59,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:01:59,815 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1073 transitions. [2021-11-07 08:01:59,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:01:59,816 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1073 transitions. [2021-11-07 08:01:59,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-07 08:01:59,818 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:01:59,818 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] [2021-11-07 08:01:59,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 08:01:59,818 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:01:59,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:01:59,819 INFO L85 PathProgramCache]: Analyzing trace with hash -101200913, now seen corresponding path program 1 times [2021-11-07 08:01:59,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:01:59,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47621929] [2021-11-07 08:01:59,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:01:59,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:01:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:00,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:00,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:00,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47621929] [2021-11-07 08:02:00,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47621929] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:00,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:00,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:00,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690693622] [2021-11-07 08:02:00,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:00,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:00,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:00,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:00,022 INFO L87 Difference]: Start difference. First operand 778 states and 1073 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:01,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:01,405 INFO L93 Difference]: Finished difference Result 1783 states and 2527 transitions. [2021-11-07 08:02:01,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 08:02:01,406 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-11-07 08:02:01,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:01,418 INFO L225 Difference]: With dead ends: 1783 [2021-11-07 08:02:01,418 INFO L226 Difference]: Without dead ends: 1766 [2021-11-07 08:02:01,419 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 [2021-11-07 08:02:01,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2021-11-07 08:02:01,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 778. [2021-11-07 08:02:01,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 762 states have (on average 1.4068241469816274) internal successors, (1072), 777 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:01,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1072 transitions. [2021-11-07 08:02:01,522 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1072 transitions. Word has length 77 [2021-11-07 08:02:01,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:01,523 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1072 transitions. [2021-11-07 08:02:01,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:01,523 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1072 transitions. [2021-11-07 08:02:01,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-07 08:02:01,526 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:01,526 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] [2021-11-07 08:02:01,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 08:02:01,527 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:01,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:01,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1387332566, now seen corresponding path program 1 times [2021-11-07 08:02:01,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:01,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195062550] [2021-11-07 08:02:01,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:01,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:01,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:01,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:01,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195062550] [2021-11-07 08:02:01,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195062550] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:01,764 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:01,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:01,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96480386] [2021-11-07 08:02:01,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:01,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:01,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:01,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:01,767 INFO L87 Difference]: Start difference. First operand 778 states and 1072 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:03,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:03,179 INFO L93 Difference]: Finished difference Result 1604 states and 2273 transitions. [2021-11-07 08:02:03,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 08:02:03,180 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-11-07 08:02:03,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:03,189 INFO L225 Difference]: With dead ends: 1604 [2021-11-07 08:02:03,189 INFO L226 Difference]: Without dead ends: 1324 [2021-11-07 08:02:03,190 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-07 08:02:03,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2021-11-07 08:02:03,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 778. [2021-11-07 08:02:03,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 762 states have (on average 1.405511811023622) internal successors, (1071), 777 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:03,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1071 transitions. [2021-11-07 08:02:03,302 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1071 transitions. Word has length 77 [2021-11-07 08:02:03,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:03,303 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1071 transitions. [2021-11-07 08:02:03,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:03,303 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1071 transitions. [2021-11-07 08:02:03,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-07 08:02:03,306 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:03,306 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] [2021-11-07 08:02:03,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 08:02:03,307 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:03,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:03,308 INFO L85 PathProgramCache]: Analyzing trace with hash 798728465, now seen corresponding path program 1 times [2021-11-07 08:02:03,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:03,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444650471] [2021-11-07 08:02:03,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:03,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:03,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:03,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:03,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444650471] [2021-11-07 08:02:03,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444650471] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:03,488 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:03,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:03,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055806934] [2021-11-07 08:02:03,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:03,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:03,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:03,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:03,491 INFO L87 Difference]: Start difference. First operand 778 states and 1071 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:04,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:04,933 INFO L93 Difference]: Finished difference Result 2024 states and 2893 transitions. [2021-11-07 08:02:04,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 08:02:04,938 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-11-07 08:02:04,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:04,957 INFO L225 Difference]: With dead ends: 2024 [2021-11-07 08:02:04,958 INFO L226 Difference]: Without dead ends: 1766 [2021-11-07 08:02:04,960 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 [2021-11-07 08:02:04,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2021-11-07 08:02:05,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 778. [2021-11-07 08:02:05,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 762 states have (on average 1.4041994750656168) internal successors, (1070), 777 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:05,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1070 transitions. [2021-11-07 08:02:05,061 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1070 transitions. Word has length 77 [2021-11-07 08:02:05,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:05,062 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1070 transitions. [2021-11-07 08:02:05,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:05,062 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1070 transitions. [2021-11-07 08:02:05,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-07 08:02:05,064 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:05,064 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] [2021-11-07 08:02:05,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 08:02:05,065 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:05,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:05,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1612110043, now seen corresponding path program 1 times [2021-11-07 08:02:05,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:05,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383260732] [2021-11-07 08:02:05,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:05,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:05,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:05,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:05,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383260732] [2021-11-07 08:02:05,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383260732] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:05,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:05,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:05,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482879515] [2021-11-07 08:02:05,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:05,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:05,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:05,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:05,255 INFO L87 Difference]: Start difference. First operand 778 states and 1070 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:06,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:06,666 INFO L93 Difference]: Finished difference Result 2036 states and 2908 transitions. [2021-11-07 08:02:06,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 08:02:06,667 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-11-07 08:02:06,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:06,680 INFO L225 Difference]: With dead ends: 2036 [2021-11-07 08:02:06,680 INFO L226 Difference]: Without dead ends: 1766 [2021-11-07 08:02:06,682 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 [2021-11-07 08:02:06,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2021-11-07 08:02:06,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 778. [2021-11-07 08:02:06,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 762 states have (on average 1.4015748031496063) internal successors, (1068), 777 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:06,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1068 transitions. [2021-11-07 08:02:06,806 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1068 transitions. Word has length 77 [2021-11-07 08:02:06,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:06,807 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1068 transitions. [2021-11-07 08:02:06,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:06,807 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1068 transitions. [2021-11-07 08:02:06,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-07 08:02:06,809 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:06,809 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] [2021-11-07 08:02:06,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 08:02:06,810 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:06,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:06,810 INFO L85 PathProgramCache]: Analyzing trace with hash -123576564, now seen corresponding path program 1 times [2021-11-07 08:02:06,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:06,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162069279] [2021-11-07 08:02:06,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:06,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:06,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:06,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:06,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162069279] [2021-11-07 08:02:06,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162069279] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:06,994 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:06,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-07 08:02:06,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480482582] [2021-11-07 08:02:06,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 08:02:06,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:06,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 08:02:06,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-07 08:02:06,997 INFO L87 Difference]: Start difference. First operand 778 states and 1068 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:09,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:09,304 INFO L93 Difference]: Finished difference Result 2804 states and 3996 transitions. [2021-11-07 08:02:09,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-07 08:02:09,305 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-11-07 08:02:09,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:09,320 INFO L225 Difference]: With dead ends: 2804 [2021-11-07 08:02:09,320 INFO L226 Difference]: Without dead ends: 2458 [2021-11-07 08:02:09,322 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2021-11-07 08:02:09,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states. [2021-11-07 08:02:09,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 782. [2021-11-07 08:02:09,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 766 states have (on average 1.3994778067885119) internal successors, (1072), 781 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:09,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1072 transitions. [2021-11-07 08:02:09,464 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1072 transitions. Word has length 77 [2021-11-07 08:02:09,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:09,464 INFO L470 AbstractCegarLoop]: Abstraction has 782 states and 1072 transitions. [2021-11-07 08:02:09,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:09,465 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1072 transitions. [2021-11-07 08:02:09,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-07 08:02:09,467 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:09,467 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] [2021-11-07 08:02:09,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 08:02:09,468 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:09,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:09,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1927792199, now seen corresponding path program 1 times [2021-11-07 08:02:09,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:09,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534079161] [2021-11-07 08:02:09,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:09,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:09,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:09,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:09,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534079161] [2021-11-07 08:02:09,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534079161] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:09,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:09,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 08:02:09,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110770999] [2021-11-07 08:02:09,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 08:02:09,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:09,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 08:02:09,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:02:09,701 INFO L87 Difference]: Start difference. First operand 782 states and 1072 transitions. Second operand has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:12,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:12,123 INFO L93 Difference]: Finished difference Result 2680 states and 3848 transitions. [2021-11-07 08:02:12,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 08:02:12,124 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-11-07 08:02:12,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:12,138 INFO L225 Difference]: With dead ends: 2680 [2021-11-07 08:02:12,138 INFO L226 Difference]: Without dead ends: 2392 [2021-11-07 08:02:12,140 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 08:02:12,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2021-11-07 08:02:12,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 782. [2021-11-07 08:02:12,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 766 states have (on average 1.3981723237597912) internal successors, (1071), 781 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:12,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1071 transitions. [2021-11-07 08:02:12,285 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1071 transitions. Word has length 77 [2021-11-07 08:02:12,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:12,285 INFO L470 AbstractCegarLoop]: Abstraction has 782 states and 1071 transitions. [2021-11-07 08:02:12,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:12,285 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1071 transitions. [2021-11-07 08:02:12,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-07 08:02:12,287 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:12,287 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] [2021-11-07 08:02:12,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-07 08:02:12,288 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:12,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:12,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1181439000, now seen corresponding path program 1 times [2021-11-07 08:02:12,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:12,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007630820] [2021-11-07 08:02:12,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:12,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:12,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:12,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:12,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:12,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007630820] [2021-11-07 08:02:12,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007630820] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:12,409 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:12,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:12,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380537270] [2021-11-07 08:02:12,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:12,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:12,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:12,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:12,411 INFO L87 Difference]: Start difference. First operand 782 states and 1071 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:13,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:13,515 INFO L93 Difference]: Finished difference Result 2038 states and 2908 transitions. [2021-11-07 08:02:13,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 08:02:13,516 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-11-07 08:02:13,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:13,524 INFO L225 Difference]: With dead ends: 2038 [2021-11-07 08:02:13,525 INFO L226 Difference]: Without dead ends: 1770 [2021-11-07 08:02:13,526 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 [2021-11-07 08:02:13,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2021-11-07 08:02:13,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 782. [2021-11-07 08:02:13,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 766 states have (on average 1.3955613577023498) internal successors, (1069), 781 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:13,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1069 transitions. [2021-11-07 08:02:13,662 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1069 transitions. Word has length 77 [2021-11-07 08:02:13,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:13,662 INFO L470 AbstractCegarLoop]: Abstraction has 782 states and 1069 transitions. [2021-11-07 08:02:13,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:13,663 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1069 transitions. [2021-11-07 08:02:13,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-07 08:02:13,664 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:13,665 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] [2021-11-07 08:02:13,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-07 08:02:13,666 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:13,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:13,667 INFO L85 PathProgramCache]: Analyzing trace with hash 540447535, now seen corresponding path program 1 times [2021-11-07 08:02:13,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:13,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184611935] [2021-11-07 08:02:13,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:13,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:13,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:13,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:13,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184611935] [2021-11-07 08:02:13,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184611935] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:13,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:13,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-07 08:02:13,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477778886] [2021-11-07 08:02:13,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 08:02:13,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:13,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 08:02:13,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-07 08:02:13,875 INFO L87 Difference]: Start difference. First operand 782 states and 1069 transitions. Second operand has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:16,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:16,181 INFO L93 Difference]: Finished difference Result 3608 states and 5237 transitions. [2021-11-07 08:02:16,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 08:02:16,182 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-11-07 08:02:16,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:16,196 INFO L225 Difference]: With dead ends: 3608 [2021-11-07 08:02:16,196 INFO L226 Difference]: Without dead ends: 3350 [2021-11-07 08:02:16,197 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-07 08:02:16,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3350 states. [2021-11-07 08:02:16,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3350 to 786. [2021-11-07 08:02:16,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 770 states have (on average 1.3935064935064936) internal successors, (1073), 785 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:16,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1073 transitions. [2021-11-07 08:02:16,349 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1073 transitions. Word has length 77 [2021-11-07 08:02:16,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:16,349 INFO L470 AbstractCegarLoop]: Abstraction has 786 states and 1073 transitions. [2021-11-07 08:02:16,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:16,350 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1073 transitions. [2021-11-07 08:02:16,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-07 08:02:16,352 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:16,352 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] [2021-11-07 08:02:16,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-07 08:02:16,353 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:16,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:16,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1913205315, now seen corresponding path program 1 times [2021-11-07 08:02:16,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:16,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453557478] [2021-11-07 08:02:16,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:16,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:16,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:16,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:16,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453557478] [2021-11-07 08:02:16,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453557478] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:16,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:16,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:16,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187305607] [2021-11-07 08:02:16,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:16,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:16,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:16,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:16,482 INFO L87 Difference]: Start difference. First operand 786 states and 1073 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:17,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:17,517 INFO L93 Difference]: Finished difference Result 2024 states and 2887 transitions. [2021-11-07 08:02:17,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 08:02:17,517 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-11-07 08:02:17,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:17,527 INFO L225 Difference]: With dead ends: 2024 [2021-11-07 08:02:17,527 INFO L226 Difference]: Without dead ends: 1770 [2021-11-07 08:02:17,529 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 [2021-11-07 08:02:17,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2021-11-07 08:02:17,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 786. [2021-11-07 08:02:17,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 770 states have (on average 1.3922077922077922) internal successors, (1072), 785 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:17,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1072 transitions. [2021-11-07 08:02:17,690 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1072 transitions. Word has length 77 [2021-11-07 08:02:17,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:17,691 INFO L470 AbstractCegarLoop]: Abstraction has 786 states and 1072 transitions. [2021-11-07 08:02:17,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:17,691 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1072 transitions. [2021-11-07 08:02:17,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 08:02:17,693 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:17,694 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] [2021-11-07 08:02:17,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-07 08:02:17,694 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:17,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:17,695 INFO L85 PathProgramCache]: Analyzing trace with hash 90854767, now seen corresponding path program 1 times [2021-11-07 08:02:17,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:17,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333520611] [2021-11-07 08:02:17,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:17,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:17,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:17,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:17,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333520611] [2021-11-07 08:02:17,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333520611] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:17,813 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:17,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:17,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080593957] [2021-11-07 08:02:17,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:17,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:17,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:17,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:17,816 INFO L87 Difference]: Start difference. First operand 786 states and 1072 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:19,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:19,068 INFO L93 Difference]: Finished difference Result 2132 states and 3023 transitions. [2021-11-07 08:02:19,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 08:02:19,068 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-07 08:02:19,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:19,075 INFO L225 Difference]: With dead ends: 2132 [2021-11-07 08:02:19,076 INFO L226 Difference]: Without dead ends: 1786 [2021-11-07 08:02:19,077 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-07 08:02:19,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2021-11-07 08:02:19,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 782. [2021-11-07 08:02:19,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 766 states have (on average 1.3929503916449086) internal successors, (1067), 781 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:19,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1067 transitions. [2021-11-07 08:02:19,215 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1067 transitions. Word has length 78 [2021-11-07 08:02:19,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:19,216 INFO L470 AbstractCegarLoop]: Abstraction has 782 states and 1067 transitions. [2021-11-07 08:02:19,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:19,216 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1067 transitions. [2021-11-07 08:02:19,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 08:02:19,218 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:19,218 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] [2021-11-07 08:02:19,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-07 08:02:19,219 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:19,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:19,219 INFO L85 PathProgramCache]: Analyzing trace with hash -464299805, now seen corresponding path program 1 times [2021-11-07 08:02:19,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:19,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991682620] [2021-11-07 08:02:19,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:19,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:19,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:19,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:19,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991682620] [2021-11-07 08:02:19,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991682620] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:19,352 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:19,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:19,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075478416] [2021-11-07 08:02:19,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:19,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:19,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:19,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:19,357 INFO L87 Difference]: Start difference. First operand 782 states and 1067 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:20,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:20,681 INFO L93 Difference]: Finished difference Result 1616 states and 2283 transitions. [2021-11-07 08:02:20,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 08:02:20,681 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-07 08:02:20,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:20,685 INFO L225 Difference]: With dead ends: 1616 [2021-11-07 08:02:20,686 INFO L226 Difference]: Without dead ends: 1328 [2021-11-07 08:02:20,687 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-07 08:02:20,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2021-11-07 08:02:20,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 782. [2021-11-07 08:02:20,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 766 states have (on average 1.391644908616188) internal successors, (1066), 781 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:20,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1066 transitions. [2021-11-07 08:02:20,803 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1066 transitions. Word has length 78 [2021-11-07 08:02:20,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:20,803 INFO L470 AbstractCegarLoop]: Abstraction has 782 states and 1066 transitions. [2021-11-07 08:02:20,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:20,804 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1066 transitions. [2021-11-07 08:02:20,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 08:02:20,806 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:20,806 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] [2021-11-07 08:02:20,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-07 08:02:20,806 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:20,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:20,807 INFO L85 PathProgramCache]: Analyzing trace with hash 848026116, now seen corresponding path program 1 times [2021-11-07 08:02:20,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:20,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020275940] [2021-11-07 08:02:20,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:20,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:20,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:20,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:20,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020275940] [2021-11-07 08:02:20,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020275940] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:20,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:20,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:20,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973309840] [2021-11-07 08:02:20,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:20,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:20,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:20,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:20,933 INFO L87 Difference]: Start difference. First operand 782 states and 1066 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:22,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:22,355 INFO L93 Difference]: Finished difference Result 2024 states and 2883 transitions. [2021-11-07 08:02:22,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 08:02:22,356 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-07 08:02:22,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:22,359 INFO L225 Difference]: With dead ends: 2024 [2021-11-07 08:02:22,360 INFO L226 Difference]: Without dead ends: 1766 [2021-11-07 08:02:22,361 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 [2021-11-07 08:02:22,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2021-11-07 08:02:22,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 778. [2021-11-07 08:02:22,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 762 states have (on average 1.3923884514435696) internal successors, (1061), 777 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:22,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1061 transitions. [2021-11-07 08:02:22,519 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1061 transitions. Word has length 78 [2021-11-07 08:02:22,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:22,519 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1061 transitions. [2021-11-07 08:02:22,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:22,520 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1061 transitions. [2021-11-07 08:02:22,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 08:02:22,522 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:22,522 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] [2021-11-07 08:02:22,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-07 08:02:22,523 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:22,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:22,523 INFO L85 PathProgramCache]: Analyzing trace with hash 749865809, now seen corresponding path program 1 times [2021-11-07 08:02:22,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:22,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592503916] [2021-11-07 08:02:22,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:22,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:22,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:22,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:22,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592503916] [2021-11-07 08:02:22,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592503916] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:22,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:22,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:22,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838253462] [2021-11-07 08:02:22,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:22,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:22,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:22,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:22,657 INFO L87 Difference]: Start difference. First operand 778 states and 1061 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:23,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:23,943 INFO L93 Difference]: Finished difference Result 2082 states and 2993 transitions. [2021-11-07 08:02:23,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 08:02:23,943 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 08:02:23,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:23,946 INFO L225 Difference]: With dead ends: 2082 [2021-11-07 08:02:23,946 INFO L226 Difference]: Without dead ends: 1828 [2021-11-07 08:02:23,948 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 [2021-11-07 08:02:23,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2021-11-07 08:02:24,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 778. [2021-11-07 08:02:24,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 762 states have (on average 1.389763779527559) internal successors, (1059), 777 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:24,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1059 transitions. [2021-11-07 08:02:24,071 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1059 transitions. Word has length 79 [2021-11-07 08:02:24,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:24,071 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1059 transitions. [2021-11-07 08:02:24,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:24,072 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1059 transitions. [2021-11-07 08:02:24,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 08:02:24,074 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:24,074 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] [2021-11-07 08:02:24,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-07 08:02:24,074 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:24,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:24,075 INFO L85 PathProgramCache]: Analyzing trace with hash 261207811, now seen corresponding path program 1 times [2021-11-07 08:02:24,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:24,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915565703] [2021-11-07 08:02:24,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:24,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:24,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:24,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:24,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915565703] [2021-11-07 08:02:24,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915565703] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:24,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:24,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 08:02:24,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834114032] [2021-11-07 08:02:24,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 08:02:24,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:24,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 08:02:24,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:02:24,273 INFO L87 Difference]: Start difference. First operand 778 states and 1059 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:27,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:27,297 INFO L93 Difference]: Finished difference Result 2698 states and 3853 transitions. [2021-11-07 08:02:27,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 08:02:27,298 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 08:02:27,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:27,301 INFO L225 Difference]: With dead ends: 2698 [2021-11-07 08:02:27,301 INFO L226 Difference]: Without dead ends: 2399 [2021-11-07 08:02:27,303 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 08:02:27,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2399 states. [2021-11-07 08:02:27,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2399 to 778. [2021-11-07 08:02:27,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 762 states have (on average 1.3884514435695539) internal successors, (1058), 777 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:27,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1058 transitions. [2021-11-07 08:02:27,433 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1058 transitions. Word has length 79 [2021-11-07 08:02:27,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:27,433 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1058 transitions. [2021-11-07 08:02:27,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:27,433 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1058 transitions. [2021-11-07 08:02:27,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 08:02:27,434 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:27,435 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] [2021-11-07 08:02:27,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-07 08:02:27,435 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:27,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:27,436 INFO L85 PathProgramCache]: Analyzing trace with hash -439539109, now seen corresponding path program 1 times [2021-11-07 08:02:27,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:27,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759836662] [2021-11-07 08:02:27,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:27,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:27,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:27,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:27,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759836662] [2021-11-07 08:02:27,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759836662] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:27,565 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:27,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:27,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147811261] [2021-11-07 08:02:27,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:27,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:27,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:27,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:27,568 INFO L87 Difference]: Start difference. First operand 778 states and 1058 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:28,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:28,958 INFO L93 Difference]: Finished difference Result 1833 states and 2612 transitions. [2021-11-07 08:02:28,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 08:02:28,958 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 08:02:28,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:28,961 INFO L225 Difference]: With dead ends: 1833 [2021-11-07 08:02:28,962 INFO L226 Difference]: Without dead ends: 1828 [2021-11-07 08:02:28,963 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 [2021-11-07 08:02:28,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2021-11-07 08:02:29,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 778. [2021-11-07 08:02:29,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 762 states have (on average 1.3871391076115485) internal successors, (1057), 777 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:29,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1057 transitions. [2021-11-07 08:02:29,091 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1057 transitions. Word has length 79 [2021-11-07 08:02:29,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:29,091 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1057 transitions. [2021-11-07 08:02:29,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:29,092 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1057 transitions. [2021-11-07 08:02:29,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 08:02:29,093 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:29,094 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] [2021-11-07 08:02:29,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-07 08:02:29,094 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:29,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:29,095 INFO L85 PathProgramCache]: Analyzing trace with hash -845454890, now seen corresponding path program 1 times [2021-11-07 08:02:29,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:29,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787085136] [2021-11-07 08:02:29,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:29,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:29,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:29,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:29,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787085136] [2021-11-07 08:02:29,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787085136] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:29,290 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:29,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 08:02:29,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217759096] [2021-11-07 08:02:29,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 08:02:29,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:29,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 08:02:29,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:02:29,292 INFO L87 Difference]: Start difference. First operand 778 states and 1057 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:31,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:31,646 INFO L93 Difference]: Finished difference Result 1982 states and 2789 transitions. [2021-11-07 08:02:31,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 08:02:31,646 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 08:02:31,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:31,649 INFO L225 Difference]: With dead ends: 1982 [2021-11-07 08:02:31,649 INFO L226 Difference]: Without dead ends: 1977 [2021-11-07 08:02:31,650 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 08:02:31,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2021-11-07 08:02:31,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 778. [2021-11-07 08:02:31,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 762 states have (on average 1.3858267716535433) internal successors, (1056), 777 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:31,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1056 transitions. [2021-11-07 08:02:31,798 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1056 transitions. Word has length 79 [2021-11-07 08:02:31,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:31,798 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1056 transitions. [2021-11-07 08:02:31,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:31,798 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1056 transitions. [2021-11-07 08:02:31,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 08:02:31,799 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:31,799 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] [2021-11-07 08:02:31,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-07 08:02:31,800 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:31,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:31,800 INFO L85 PathProgramCache]: Analyzing trace with hash 88191580, now seen corresponding path program 1 times [2021-11-07 08:02:31,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:31,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946822151] [2021-11-07 08:02:31,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:31,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:31,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:31,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:31,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946822151] [2021-11-07 08:02:31,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946822151] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:31,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:31,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:31,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120799176] [2021-11-07 08:02:31,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:31,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:31,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:31,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:31,933 INFO L87 Difference]: Start difference. First operand 778 states and 1056 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:33,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:33,449 INFO L93 Difference]: Finished difference Result 2076 states and 2981 transitions. [2021-11-07 08:02:33,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 08:02:33,450 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 08:02:33,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:33,453 INFO L225 Difference]: With dead ends: 2076 [2021-11-07 08:02:33,453 INFO L226 Difference]: Without dead ends: 1828 [2021-11-07 08:02:33,454 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 [2021-11-07 08:02:33,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2021-11-07 08:02:33,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 778. [2021-11-07 08:02:33,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 762 states have (on average 1.3845144356955381) internal successors, (1055), 777 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:33,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1055 transitions. [2021-11-07 08:02:33,594 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1055 transitions. Word has length 79 [2021-11-07 08:02:33,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:33,595 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1055 transitions. [2021-11-07 08:02:33,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:33,595 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1055 transitions. [2021-11-07 08:02:33,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 08:02:33,597 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:33,597 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] [2021-11-07 08:02:33,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-07 08:02:33,597 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:33,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:33,598 INFO L85 PathProgramCache]: Analyzing trace with hash 310074252, now seen corresponding path program 1 times [2021-11-07 08:02:33,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:33,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692764773] [2021-11-07 08:02:33,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:33,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:33,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:33,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:33,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692764773] [2021-11-07 08:02:33,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692764773] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:33,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:33,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:33,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860357268] [2021-11-07 08:02:33,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:33,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:33,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:33,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:33,745 INFO L87 Difference]: Start difference. First operand 778 states and 1055 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:35,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:35,149 INFO L93 Difference]: Finished difference Result 2082 states and 2987 transitions. [2021-11-07 08:02:35,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 08:02:35,150 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 08:02:35,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:35,153 INFO L225 Difference]: With dead ends: 2082 [2021-11-07 08:02:35,154 INFO L226 Difference]: Without dead ends: 1828 [2021-11-07 08:02:35,155 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 [2021-11-07 08:02:35,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2021-11-07 08:02:35,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 778. [2021-11-07 08:02:35,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 762 states have (on average 1.3818897637795275) internal successors, (1053), 777 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:35,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1053 transitions. [2021-11-07 08:02:35,353 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1053 transitions. Word has length 79 [2021-11-07 08:02:35,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:35,353 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1053 transitions. [2021-11-07 08:02:35,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:35,353 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1053 transitions. [2021-11-07 08:02:35,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 08:02:35,355 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:35,355 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] [2021-11-07 08:02:35,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-07 08:02:35,356 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:35,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:35,356 INFO L85 PathProgramCache]: Analyzing trace with hash -274145819, now seen corresponding path program 1 times [2021-11-07 08:02:35,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:35,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027475232] [2021-11-07 08:02:35,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:35,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:35,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:35,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:35,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027475232] [2021-11-07 08:02:35,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027475232] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:35,539 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:35,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-07 08:02:35,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424164804] [2021-11-07 08:02:35,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 08:02:35,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:35,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 08:02:35,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-07 08:02:35,541 INFO L87 Difference]: Start difference. First operand 778 states and 1053 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:38,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:38,177 INFO L93 Difference]: Finished difference Result 3628 states and 5249 transitions. [2021-11-07 08:02:38,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 08:02:38,177 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 08:02:38,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:38,184 INFO L225 Difference]: With dead ends: 3628 [2021-11-07 08:02:38,185 INFO L226 Difference]: Without dead ends: 3358 [2021-11-07 08:02:38,187 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 [2021-11-07 08:02:38,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3358 states. [2021-11-07 08:02:38,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3358 to 786. [2021-11-07 08:02:38,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 770 states have (on average 1.377922077922078) internal successors, (1061), 785 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:38,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1061 transitions. [2021-11-07 08:02:38,430 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1061 transitions. Word has length 79 [2021-11-07 08:02:38,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:38,430 INFO L470 AbstractCegarLoop]: Abstraction has 786 states and 1061 transitions. [2021-11-07 08:02:38,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:38,430 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1061 transitions. [2021-11-07 08:02:38,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 08:02:38,432 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:38,432 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] [2021-11-07 08:02:38,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-07 08:02:38,435 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:38,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:38,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1678498669, now seen corresponding path program 1 times [2021-11-07 08:02:38,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:38,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808230899] [2021-11-07 08:02:38,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:38,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:38,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:38,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:38,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808230899] [2021-11-07 08:02:38,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808230899] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:38,636 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:38,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 08:02:38,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103070443] [2021-11-07 08:02:38,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 08:02:38,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:38,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 08:02:38,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:02:38,638 INFO L87 Difference]: Start difference. First operand 786 states and 1061 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:40,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:40,889 INFO L93 Difference]: Finished difference Result 2242 states and 3176 transitions. [2021-11-07 08:02:40,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 08:02:40,889 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 08:02:40,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:40,892 INFO L225 Difference]: With dead ends: 2242 [2021-11-07 08:02:40,892 INFO L226 Difference]: Without dead ends: 1988 [2021-11-07 08:02:40,894 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 08:02:40,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1988 states. [2021-11-07 08:02:41,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1988 to 786. [2021-11-07 08:02:41,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 770 states have (on average 1.3753246753246753) internal successors, (1059), 785 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:41,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1059 transitions. [2021-11-07 08:02:41,116 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1059 transitions. Word has length 79 [2021-11-07 08:02:41,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:41,116 INFO L470 AbstractCegarLoop]: Abstraction has 786 states and 1059 transitions. [2021-11-07 08:02:41,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:41,116 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1059 transitions. [2021-11-07 08:02:41,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 08:02:41,122 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:41,122 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] [2021-11-07 08:02:41,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-07 08:02:41,123 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:41,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:41,123 INFO L85 PathProgramCache]: Analyzing trace with hash 861543357, now seen corresponding path program 1 times [2021-11-07 08:02:41,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:41,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544164851] [2021-11-07 08:02:41,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:41,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:41,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:41,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:41,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544164851] [2021-11-07 08:02:41,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544164851] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:41,282 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:41,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:41,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665050015] [2021-11-07 08:02:41,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:41,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:41,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:41,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:41,285 INFO L87 Difference]: Start difference. First operand 786 states and 1059 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:42,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:42,832 INFO L93 Difference]: Finished difference Result 2086 states and 2986 transitions. [2021-11-07 08:02:42,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 08:02:42,833 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 08:02:42,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:42,835 INFO L225 Difference]: With dead ends: 2086 [2021-11-07 08:02:42,835 INFO L226 Difference]: Without dead ends: 1836 [2021-11-07 08:02:42,836 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 [2021-11-07 08:02:42,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2021-11-07 08:02:42,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 786. [2021-11-07 08:02:42,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 770 states have (on average 1.3727272727272728) internal successors, (1057), 785 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:42,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1057 transitions. [2021-11-07 08:02:43,000 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1057 transitions. Word has length 79 [2021-11-07 08:02:43,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:43,000 INFO L470 AbstractCegarLoop]: Abstraction has 786 states and 1057 transitions. [2021-11-07 08:02:43,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:43,000 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1057 transitions. [2021-11-07 08:02:43,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 08:02:43,001 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:43,001 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] [2021-11-07 08:02:43,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-07 08:02:43,002 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:43,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:43,002 INFO L85 PathProgramCache]: Analyzing trace with hash -861388972, now seen corresponding path program 1 times [2021-11-07 08:02:43,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:43,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929982483] [2021-11-07 08:02:43,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:43,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:43,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:43,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:43,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929982483] [2021-11-07 08:02:43,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929982483] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:43,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:43,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 08:02:43,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502746304] [2021-11-07 08:02:43,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 08:02:43,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:43,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 08:02:43,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:02:43,197 INFO L87 Difference]: Start difference. First operand 786 states and 1057 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:45,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:45,611 INFO L93 Difference]: Finished difference Result 1990 states and 2789 transitions. [2021-11-07 08:02:45,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 08:02:45,612 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 08:02:45,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:45,614 INFO L225 Difference]: With dead ends: 1990 [2021-11-07 08:02:45,614 INFO L226 Difference]: Without dead ends: 1985 [2021-11-07 08:02:45,615 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 08:02:45,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2021-11-07 08:02:45,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 786. [2021-11-07 08:02:45,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 770 states have (on average 1.3714285714285714) internal successors, (1056), 785 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:45,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1056 transitions. [2021-11-07 08:02:45,812 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1056 transitions. Word has length 79 [2021-11-07 08:02:45,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:45,812 INFO L470 AbstractCegarLoop]: Abstraction has 786 states and 1056 transitions. [2021-11-07 08:02:45,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:45,812 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1056 transitions. [2021-11-07 08:02:45,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 08:02:45,813 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:45,813 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] [2021-11-07 08:02:45,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-07 08:02:45,814 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:45,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:45,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1854145171, now seen corresponding path program 1 times [2021-11-07 08:02:45,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:45,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100202290] [2021-11-07 08:02:45,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:45,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:45,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:45,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:45,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100202290] [2021-11-07 08:02:45,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100202290] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:45,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:45,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:45,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252994040] [2021-11-07 08:02:45,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:45,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:45,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:45,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:45,965 INFO L87 Difference]: Start difference. First operand 786 states and 1056 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:47,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:47,463 INFO L93 Difference]: Finished difference Result 2084 states and 2981 transitions. [2021-11-07 08:02:47,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 08:02:47,463 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 08:02:47,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:47,465 INFO L225 Difference]: With dead ends: 2084 [2021-11-07 08:02:47,465 INFO L226 Difference]: Without dead ends: 1836 [2021-11-07 08:02:47,466 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 [2021-11-07 08:02:47,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2021-11-07 08:02:47,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 786. [2021-11-07 08:02:47,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 770 states have (on average 1.37012987012987) internal successors, (1055), 785 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:47,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1055 transitions. [2021-11-07 08:02:47,646 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1055 transitions. Word has length 79 [2021-11-07 08:02:47,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:47,646 INFO L470 AbstractCegarLoop]: Abstraction has 786 states and 1055 transitions. [2021-11-07 08:02:47,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:47,646 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1055 transitions. [2021-11-07 08:02:47,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 08:02:47,647 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:47,647 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] [2021-11-07 08:02:47,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-07 08:02:47,647 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:47,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:47,648 INFO L85 PathProgramCache]: Analyzing trace with hash -403243016, now seen corresponding path program 1 times [2021-11-07 08:02:47,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:47,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620818330] [2021-11-07 08:02:47,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:47,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:47,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:47,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:47,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620818330] [2021-11-07 08:02:47,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620818330] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:47,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:47,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 08:02:47,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096958577] [2021-11-07 08:02:47,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 08:02:47,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:47,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 08:02:47,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:02:47,862 INFO L87 Difference]: Start difference. First operand 786 states and 1055 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:50,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:50,151 INFO L93 Difference]: Finished difference Result 2230 states and 3156 transitions. [2021-11-07 08:02:50,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 08:02:50,170 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 08:02:50,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:50,172 INFO L225 Difference]: With dead ends: 2230 [2021-11-07 08:02:50,172 INFO L226 Difference]: Without dead ends: 1982 [2021-11-07 08:02:50,174 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 08:02:50,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2021-11-07 08:02:50,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 786. [2021-11-07 08:02:50,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 770 states have (on average 1.3688311688311687) internal successors, (1054), 785 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:50,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1054 transitions. [2021-11-07 08:02:50,391 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1054 transitions. Word has length 79 [2021-11-07 08:02:50,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:50,392 INFO L470 AbstractCegarLoop]: Abstraction has 786 states and 1054 transitions. [2021-11-07 08:02:50,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:50,392 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1054 transitions. [2021-11-07 08:02:50,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-07 08:02:50,393 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:50,394 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] [2021-11-07 08:02:50,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-07 08:02:50,394 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:50,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:50,394 INFO L85 PathProgramCache]: Analyzing trace with hash -716120998, now seen corresponding path program 1 times [2021-11-07 08:02:50,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:50,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678620360] [2021-11-07 08:02:50,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:50,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:50,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:50,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:50,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678620360] [2021-11-07 08:02:50,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678620360] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:50,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:50,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:50,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569157230] [2021-11-07 08:02:50,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:50,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:50,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:50,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:50,524 INFO L87 Difference]: Start difference. First operand 786 states and 1054 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:51,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:51,851 INFO L93 Difference]: Finished difference Result 1631 states and 2279 transitions. [2021-11-07 08:02:51,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 08:02:51,851 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-07 08:02:51,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:51,852 INFO L225 Difference]: With dead ends: 1631 [2021-11-07 08:02:51,853 INFO L226 Difference]: Without dead ends: 1332 [2021-11-07 08:02:51,853 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-07 08:02:51,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2021-11-07 08:02:52,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 786. [2021-11-07 08:02:52,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 770 states have (on average 1.3675324675324676) internal successors, (1053), 785 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:52,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1053 transitions. [2021-11-07 08:02:52,032 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1053 transitions. Word has length 80 [2021-11-07 08:02:52,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:52,033 INFO L470 AbstractCegarLoop]: Abstraction has 786 states and 1053 transitions. [2021-11-07 08:02:52,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:52,033 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1053 transitions. [2021-11-07 08:02:52,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-07 08:02:52,034 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:52,035 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] [2021-11-07 08:02:52,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-07 08:02:52,035 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:52,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:52,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1967609083, now seen corresponding path program 1 times [2021-11-07 08:02:52,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:52,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986591775] [2021-11-07 08:02:52,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:52,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:52,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:52,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:52,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986591775] [2021-11-07 08:02:52,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986591775] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:52,230 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:52,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:52,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790813926] [2021-11-07 08:02:52,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:52,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:52,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:52,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:52,231 INFO L87 Difference]: Start difference. First operand 786 states and 1053 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:53,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:53,421 INFO L93 Difference]: Finished difference Result 1353 states and 1865 transitions. [2021-11-07 08:02:53,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 08:02:53,421 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-07 08:02:53,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:53,422 INFO L225 Difference]: With dead ends: 1353 [2021-11-07 08:02:53,422 INFO L226 Difference]: Without dead ends: 1348 [2021-11-07 08:02:53,423 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 [2021-11-07 08:02:53,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2021-11-07 08:02:53,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 786. [2021-11-07 08:02:53,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 770 states have (on average 1.3662337662337662) internal successors, (1052), 785 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:53,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1052 transitions. [2021-11-07 08:02:53,613 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1052 transitions. Word has length 80 [2021-11-07 08:02:53,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:53,613 INFO L470 AbstractCegarLoop]: Abstraction has 786 states and 1052 transitions. [2021-11-07 08:02:53,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:53,613 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1052 transitions. [2021-11-07 08:02:53,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-07 08:02:53,614 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:53,614 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] [2021-11-07 08:02:53,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-07 08:02:53,614 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:53,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:53,615 INFO L85 PathProgramCache]: Analyzing trace with hash 724648618, now seen corresponding path program 1 times [2021-11-07 08:02:53,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:53,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842116236] [2021-11-07 08:02:53,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:53,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:53,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:53,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:53,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842116236] [2021-11-07 08:02:53,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842116236] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:53,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:53,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:53,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192548146] [2021-11-07 08:02:53,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:53,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:53,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:53,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:53,744 INFO L87 Difference]: Start difference. First operand 786 states and 1052 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:55,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:55,191 INFO L93 Difference]: Finished difference Result 2090 states and 2984 transitions. [2021-11-07 08:02:55,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 08:02:55,191 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-07 08:02:55,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:55,193 INFO L225 Difference]: With dead ends: 2090 [2021-11-07 08:02:55,193 INFO L226 Difference]: Without dead ends: 1836 [2021-11-07 08:02:55,194 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 [2021-11-07 08:02:55,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2021-11-07 08:02:55,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 786. [2021-11-07 08:02:55,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 770 states have (on average 1.3636363636363635) internal successors, (1050), 785 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:55,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1050 transitions. [2021-11-07 08:02:55,369 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1050 transitions. Word has length 80 [2021-11-07 08:02:55,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:55,370 INFO L470 AbstractCegarLoop]: Abstraction has 786 states and 1050 transitions. [2021-11-07 08:02:55,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:55,370 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1050 transitions. [2021-11-07 08:02:55,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-07 08:02:55,371 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:55,371 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] [2021-11-07 08:02:55,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-07 08:02:55,371 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:55,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:55,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1300130107, now seen corresponding path program 1 times [2021-11-07 08:02:55,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:55,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662383255] [2021-11-07 08:02:55,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:55,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:55,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:55,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:55,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662383255] [2021-11-07 08:02:55,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662383255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:55,488 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:55,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:55,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758117038] [2021-11-07 08:02:55,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:55,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:55,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:55,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:55,490 INFO L87 Difference]: Start difference. First operand 786 states and 1050 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:56,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:56,913 INFO L93 Difference]: Finished difference Result 2036 states and 2872 transitions. [2021-11-07 08:02:56,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 08:02:56,914 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-07 08:02:56,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:56,916 INFO L225 Difference]: With dead ends: 2036 [2021-11-07 08:02:56,916 INFO L226 Difference]: Without dead ends: 1766 [2021-11-07 08:02:56,917 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 [2021-11-07 08:02:56,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2021-11-07 08:02:57,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 778. [2021-11-07 08:02:57,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 762 states have (on average 1.3648293963254594) internal successors, (1040), 777 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:57,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1040 transitions. [2021-11-07 08:02:57,097 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1040 transitions. Word has length 80 [2021-11-07 08:02:57,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:57,097 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1040 transitions. [2021-11-07 08:02:57,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:57,097 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1040 transitions. [2021-11-07 08:02:57,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-07 08:02:57,098 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:57,098 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] [2021-11-07 08:02:57,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-07 08:02:57,098 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:57,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:57,099 INFO L85 PathProgramCache]: Analyzing trace with hash -702458092, now seen corresponding path program 1 times [2021-11-07 08:02:57,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:57,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540544567] [2021-11-07 08:02:57,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:57,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:57,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:57,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:57,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540544567] [2021-11-07 08:02:57,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540544567] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:57,224 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:57,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:57,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908911345] [2021-11-07 08:02:57,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:57,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:57,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:57,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:57,226 INFO L87 Difference]: Start difference. First operand 778 states and 1040 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:58,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:02:58,838 INFO L93 Difference]: Finished difference Result 1833 states and 2594 transitions. [2021-11-07 08:02:58,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 08:02:58,839 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-07 08:02:58,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:02:58,840 INFO L225 Difference]: With dead ends: 1833 [2021-11-07 08:02:58,840 INFO L226 Difference]: Without dead ends: 1828 [2021-11-07 08:02:58,841 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 [2021-11-07 08:02:58,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2021-11-07 08:02:58,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 778. [2021-11-07 08:02:58,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 762 states have (on average 1.363517060367454) internal successors, (1039), 777 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:58,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1039 transitions. [2021-11-07 08:02:58,999 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1039 transitions. Word has length 80 [2021-11-07 08:02:58,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:02:59,000 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1039 transitions. [2021-11-07 08:02:59,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:02:59,000 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1039 transitions. [2021-11-07 08:02:59,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-07 08:02:59,001 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:02:59,001 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] [2021-11-07 08:02:59,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-07 08:02:59,001 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:02:59,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:02:59,001 INFO L85 PathProgramCache]: Analyzing trace with hash 141903750, now seen corresponding path program 1 times [2021-11-07 08:02:59,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:02:59,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145049179] [2021-11-07 08:02:59,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:02:59,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:02:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:02:59,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:02:59,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:02:59,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145049179] [2021-11-07 08:02:59,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145049179] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:02:59,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:02:59,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:02:59,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108523239] [2021-11-07 08:02:59,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:02:59,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:02:59,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:02:59,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:02:59,123 INFO L87 Difference]: Start difference. First operand 778 states and 1039 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:00,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:03:00,695 INFO L93 Difference]: Finished difference Result 2076 states and 2964 transitions. [2021-11-07 08:03:00,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 08:03:00,695 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-07 08:03:00,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:03:00,697 INFO L225 Difference]: With dead ends: 2076 [2021-11-07 08:03:00,698 INFO L226 Difference]: Without dead ends: 1828 [2021-11-07 08:03:00,699 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 [2021-11-07 08:03:00,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2021-11-07 08:03:00,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 778. [2021-11-07 08:03:00,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 762 states have (on average 1.3622047244094488) internal successors, (1038), 777 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:00,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1038 transitions. [2021-11-07 08:03:00,897 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1038 transitions. Word has length 80 [2021-11-07 08:03:00,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:03:00,897 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1038 transitions. [2021-11-07 08:03:00,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:00,897 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1038 transitions. [2021-11-07 08:03:00,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-07 08:03:00,898 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:03:00,899 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] [2021-11-07 08:03:00,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-07 08:03:00,899 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:03:00,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:03:00,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1565003779, now seen corresponding path program 1 times [2021-11-07 08:03:00,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:03:00,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270914581] [2021-11-07 08:03:00,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:03:00,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:03:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:03:01,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:03:01,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:03:01,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270914581] [2021-11-07 08:03:01,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270914581] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:03:01,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:03:01,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:03:01,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916252382] [2021-11-07 08:03:01,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:03:01,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:03:01,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:03:01,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:03:01,025 INFO L87 Difference]: Start difference. First operand 778 states and 1038 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:02,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:03:02,585 INFO L93 Difference]: Finished difference Result 2074 states and 2961 transitions. [2021-11-07 08:03:02,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 08:03:02,586 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-07 08:03:02,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:03:02,587 INFO L225 Difference]: With dead ends: 2074 [2021-11-07 08:03:02,587 INFO L226 Difference]: Without dead ends: 1827 [2021-11-07 08:03:02,588 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 [2021-11-07 08:03:02,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1827 states. [2021-11-07 08:03:02,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1827 to 777. [2021-11-07 08:03:02,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 761 states have (on average 1.3613666228646517) internal successors, (1036), 776 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:02,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1036 transitions. [2021-11-07 08:03:02,752 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1036 transitions. Word has length 80 [2021-11-07 08:03:02,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:03:02,752 INFO L470 AbstractCegarLoop]: Abstraction has 777 states and 1036 transitions. [2021-11-07 08:03:02,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:02,752 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1036 transitions. [2021-11-07 08:03:02,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 08:03:02,753 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:03:02,753 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] [2021-11-07 08:03:02,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-07 08:03:02,753 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:03:02,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:03:02,753 INFO L85 PathProgramCache]: Analyzing trace with hash 484129246, now seen corresponding path program 1 times [2021-11-07 08:03:02,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:03:02,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171388464] [2021-11-07 08:03:02,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:03:02,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:03:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:03:03,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:03:03,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:03:03,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171388464] [2021-11-07 08:03:03,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171388464] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:03:03,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:03:03,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-11-07 08:03:03,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468051535] [2021-11-07 08:03:03,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-07 08:03:03,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:03:03,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-07 08:03:03,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=675, Unknown=0, NotChecked=0, Total=756 [2021-11-07 08:03:03,947 INFO L87 Difference]: Start difference. First operand 777 states and 1036 transitions. Second operand has 28 states, 28 states have (on average 2.892857142857143) internal successors, (81), 28 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:11,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:03:11,868 INFO L93 Difference]: Finished difference Result 2717 states and 3683 transitions. [2021-11-07 08:03:11,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-07 08:03:11,868 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.892857142857143) internal successors, (81), 28 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 08:03:11,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:03:11,870 INFO L225 Difference]: With dead ends: 2717 [2021-11-07 08:03:11,870 INFO L226 Difference]: Without dead ends: 2467 [2021-11-07 08:03:11,872 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=400, Invalid=2050, Unknown=0, NotChecked=0, Total=2450 [2021-11-07 08:03:11,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2467 states. [2021-11-07 08:03:12,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2467 to 797. [2021-11-07 08:03:12,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 781 states have (on average 1.3610755441741358) internal successors, (1063), 796 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:12,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1063 transitions. [2021-11-07 08:03:12,057 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1063 transitions. Word has length 81 [2021-11-07 08:03:12,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:03:12,057 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1063 transitions. [2021-11-07 08:03:12,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.892857142857143) internal successors, (81), 28 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:12,057 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1063 transitions. [2021-11-07 08:03:12,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 08:03:12,058 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:03:12,058 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] [2021-11-07 08:03:12,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-07 08:03:12,058 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:03:12,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:03:12,059 INFO L85 PathProgramCache]: Analyzing trace with hash 852624389, now seen corresponding path program 1 times [2021-11-07 08:03:12,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:03:12,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055312065] [2021-11-07 08:03:12,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:03:12,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:03:12,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:03:13,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:03:13,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:03:13,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055312065] [2021-11-07 08:03:13,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055312065] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:03:13,448 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:03:13,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-07 08:03:13,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972994287] [2021-11-07 08:03:13,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-07 08:03:13,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:03:13,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-07 08:03:13,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=724, Unknown=0, NotChecked=0, Total=812 [2021-11-07 08:03:13,450 INFO L87 Difference]: Start difference. First operand 797 states and 1063 transitions. Second operand has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:22,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:03:22,036 INFO L93 Difference]: Finished difference Result 2391 states and 3252 transitions. [2021-11-07 08:03:22,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-07 08:03:22,037 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 08:03:22,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:03:22,039 INFO L225 Difference]: With dead ends: 2391 [2021-11-07 08:03:22,039 INFO L226 Difference]: Without dead ends: 2141 [2021-11-07 08:03:22,041 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=545, Invalid=2535, Unknown=0, NotChecked=0, Total=3080 [2021-11-07 08:03:22,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2141 states. [2021-11-07 08:03:22,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2141 to 807. [2021-11-07 08:03:22,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 791 states have (on average 1.361567635903919) internal successors, (1077), 806 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:22,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1077 transitions. [2021-11-07 08:03:22,246 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1077 transitions. Word has length 81 [2021-11-07 08:03:22,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:03:22,247 INFO L470 AbstractCegarLoop]: Abstraction has 807 states and 1077 transitions. [2021-11-07 08:03:22,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:22,247 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1077 transitions. [2021-11-07 08:03:22,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 08:03:22,248 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:03:22,248 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] [2021-11-07 08:03:22,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-07 08:03:22,248 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:03:22,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:03:22,248 INFO L85 PathProgramCache]: Analyzing trace with hash -132869610, now seen corresponding path program 1 times [2021-11-07 08:03:22,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:03:22,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419839173] [2021-11-07 08:03:22,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:03:22,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:03:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:03:23,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:03:23,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:03:23,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419839173] [2021-11-07 08:03:23,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419839173] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:03:23,334 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:03:23,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-07 08:03:23,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397905231] [2021-11-07 08:03:23,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-07 08:03:23,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:03:23,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-07 08:03:23,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=724, Unknown=0, NotChecked=0, Total=812 [2021-11-07 08:03:23,336 INFO L87 Difference]: Start difference. First operand 807 states and 1077 transitions. Second operand has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:34,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:03:34,798 INFO L93 Difference]: Finished difference Result 5101 states and 7340 transitions. [2021-11-07 08:03:34,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-07 08:03:34,799 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 08:03:34,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:03:34,803 INFO L225 Difference]: With dead ends: 5101 [2021-11-07 08:03:34,803 INFO L226 Difference]: Without dead ends: 4854 [2021-11-07 08:03:34,805 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=553, Invalid=3107, Unknown=0, NotChecked=0, Total=3660 [2021-11-07 08:03:34,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4854 states. [2021-11-07 08:03:35,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4854 to 812. [2021-11-07 08:03:35,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 796 states have (on average 1.3618090452261307) internal successors, (1084), 811 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:35,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1084 transitions. [2021-11-07 08:03:35,044 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1084 transitions. Word has length 81 [2021-11-07 08:03:35,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:03:35,044 INFO L470 AbstractCegarLoop]: Abstraction has 812 states and 1084 transitions. [2021-11-07 08:03:35,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:35,044 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1084 transitions. [2021-11-07 08:03:35,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 08:03:35,045 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:03:35,045 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] [2021-11-07 08:03:35,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-07 08:03:35,045 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:03:35,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:03:35,046 INFO L85 PathProgramCache]: Analyzing trace with hash -174601812, now seen corresponding path program 1 times [2021-11-07 08:03:35,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:03:35,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275614356] [2021-11-07 08:03:35,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:03:35,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:03:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:03:35,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:03:35,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:03:35,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275614356] [2021-11-07 08:03:35,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275614356] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:03:35,890 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:03:35,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-11-07 08:03:35,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470237985] [2021-11-07 08:03:35,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-07 08:03:35,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:03:35,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-07 08:03:35,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2021-11-07 08:03:35,892 INFO L87 Difference]: Start difference. First operand 812 states and 1084 transitions. Second operand has 27 states, 27 states have (on average 3.0) internal successors, (81), 27 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:44,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:03:44,563 INFO L93 Difference]: Finished difference Result 3395 states and 4770 transitions. [2021-11-07 08:03:44,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-07 08:03:44,563 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.0) internal successors, (81), 27 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 08:03:44,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:03:44,566 INFO L225 Difference]: With dead ends: 3395 [2021-11-07 08:03:44,566 INFO L226 Difference]: Without dead ends: 3143 [2021-11-07 08:03:44,568 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=467, Invalid=2503, Unknown=0, NotChecked=0, Total=2970 [2021-11-07 08:03:44,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3143 states. [2021-11-07 08:03:44,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3143 to 812. [2021-11-07 08:03:44,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 796 states have (on average 1.3605527638190955) internal successors, (1083), 811 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:44,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1083 transitions. [2021-11-07 08:03:44,800 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1083 transitions. Word has length 81 [2021-11-07 08:03:44,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:03:44,800 INFO L470 AbstractCegarLoop]: Abstraction has 812 states and 1083 transitions. [2021-11-07 08:03:44,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.0) internal successors, (81), 27 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:44,800 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1083 transitions. [2021-11-07 08:03:44,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 08:03:44,802 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:03:44,802 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] [2021-11-07 08:03:44,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-11-07 08:03:44,802 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:03:44,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:03:44,803 INFO L85 PathProgramCache]: Analyzing trace with hash 295761583, now seen corresponding path program 1 times [2021-11-07 08:03:44,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:03:44,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733581456] [2021-11-07 08:03:44,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:03:44,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:03:44,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:03:45,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:03:45,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:03:45,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733581456] [2021-11-07 08:03:45,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733581456] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:03:45,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:03:45,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-11-07 08:03:45,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001455536] [2021-11-07 08:03:45,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-07 08:03:45,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:03:45,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-07 08:03:45,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2021-11-07 08:03:45,817 INFO L87 Difference]: Start difference. First operand 812 states and 1083 transitions. Second operand has 28 states, 28 states have (on average 2.892857142857143) internal successors, (81), 28 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:53,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:03:53,292 INFO L93 Difference]: Finished difference Result 2419 states and 3260 transitions. [2021-11-07 08:03:53,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-07 08:03:53,293 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.892857142857143) internal successors, (81), 28 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 08:03:53,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:03:53,295 INFO L225 Difference]: With dead ends: 2419 [2021-11-07 08:03:53,295 INFO L226 Difference]: Without dead ends: 2415 [2021-11-07 08:03:53,296 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=432, Invalid=2118, Unknown=0, NotChecked=0, Total=2550 [2021-11-07 08:03:53,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2415 states. [2021-11-07 08:03:53,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2415 to 827. [2021-11-07 08:03:53,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 811 states have (on average 1.3600493218249075) internal successors, (1103), 826 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:53,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1103 transitions. [2021-11-07 08:03:53,598 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1103 transitions. Word has length 81 [2021-11-07 08:03:53,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:03:53,598 INFO L470 AbstractCegarLoop]: Abstraction has 827 states and 1103 transitions. [2021-11-07 08:03:53,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.892857142857143) internal successors, (81), 28 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:03:53,598 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1103 transitions. [2021-11-07 08:03:53,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 08:03:53,599 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:03:53,599 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] [2021-11-07 08:03:53,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-07 08:03:53,599 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:03:53,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:03:53,600 INFO L85 PathProgramCache]: Analyzing trace with hash -731464618, now seen corresponding path program 1 times [2021-11-07 08:03:53,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:03:53,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947119631] [2021-11-07 08:03:53,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:03:53,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:03:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:03:54,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:03:54,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:03:54,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947119631] [2021-11-07 08:03:54,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947119631] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:03:54,767 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:03:54,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-11-07 08:03:54,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991639503] [2021-11-07 08:03:54,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-07 08:03:54,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:03:54,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-07 08:03:54,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2021-11-07 08:03:54,769 INFO L87 Difference]: Start difference. First operand 827 states and 1103 transitions. Second operand has 28 states, 28 states have (on average 2.892857142857143) internal successors, (81), 28 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:04:03,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:04:03,781 INFO L93 Difference]: Finished difference Result 2497 states and 3372 transitions. [2021-11-07 08:04:03,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-07 08:04:03,782 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.892857142857143) internal successors, (81), 28 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 08:04:03,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:04:03,784 INFO L225 Difference]: With dead ends: 2497 [2021-11-07 08:04:03,785 INFO L226 Difference]: Without dead ends: 2244 [2021-11-07 08:04:03,787 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=512, Invalid=2568, Unknown=0, NotChecked=0, Total=3080 [2021-11-07 08:04:03,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2244 states. [2021-11-07 08:04:04,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2244 to 832. [2021-11-07 08:04:04,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 816 states have (on average 1.3590686274509804) internal successors, (1109), 831 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:04:04,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1109 transitions. [2021-11-07 08:04:04,176 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1109 transitions. Word has length 81 [2021-11-07 08:04:04,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:04:04,176 INFO L470 AbstractCegarLoop]: Abstraction has 832 states and 1109 transitions. [2021-11-07 08:04:04,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.892857142857143) internal successors, (81), 28 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:04:04,176 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1109 transitions. [2021-11-07 08:04:04,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 08:04:04,177 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:04:04,177 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] [2021-11-07 08:04:04,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-11-07 08:04:04,178 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:04:04,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:04:04,178 INFO L85 PathProgramCache]: Analyzing trace with hash 25475409, now seen corresponding path program 1 times [2021-11-07 08:04:04,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:04:04,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580588167] [2021-11-07 08:04:04,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:04:04,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:04:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:04:05,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:04:05,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:04:05,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580588167] [2021-11-07 08:04:05,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580588167] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:04:05,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:04:05,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-11-07 08:04:05,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875468987] [2021-11-07 08:04:05,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-07 08:04:05,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:04:05,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-07 08:04:05,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=681, Unknown=0, NotChecked=0, Total=756 [2021-11-07 08:04:05,226 INFO L87 Difference]: Start difference. First operand 832 states and 1109 transitions. Second operand has 28 states, 28 states have (on average 2.892857142857143) internal successors, (81), 28 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:04:14,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:04:14,088 INFO L93 Difference]: Finished difference Result 2722 states and 3738 transitions. [2021-11-07 08:04:14,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-07 08:04:14,088 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.892857142857143) internal successors, (81), 28 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 08:04:14,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:04:14,090 INFO L225 Difference]: With dead ends: 2722 [2021-11-07 08:04:14,090 INFO L226 Difference]: Without dead ends: 2469 [2021-11-07 08:04:14,092 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=481, Invalid=2381, Unknown=0, NotChecked=0, Total=2862 [2021-11-07 08:04:14,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2469 states. [2021-11-07 08:04:14,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2469 to 842. [2021-11-07 08:04:14,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 826 states have (on average 1.3571428571428572) internal successors, (1121), 841 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:04:14,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1121 transitions. [2021-11-07 08:04:14,365 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1121 transitions. Word has length 81 [2021-11-07 08:04:14,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:04:14,365 INFO L470 AbstractCegarLoop]: Abstraction has 842 states and 1121 transitions. [2021-11-07 08:04:14,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.892857142857143) internal successors, (81), 28 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:04:14,366 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1121 transitions. [2021-11-07 08:04:14,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 08:04:14,367 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:04:14,367 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] [2021-11-07 08:04:14,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-11-07 08:04:14,367 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:04:14,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:04:14,367 INFO L85 PathProgramCache]: Analyzing trace with hash -103186399, now seen corresponding path program 1 times [2021-11-07 08:04:14,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:04:14,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861705243] [2021-11-07 08:04:14,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:04:14,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:04:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:04:15,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:04:15,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:04:15,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861705243] [2021-11-07 08:04:15,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861705243] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:04:15,460 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:04:15,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-07 08:04:15,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736479725] [2021-11-07 08:04:15,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-07 08:04:15,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:04:15,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-07 08:04:15,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2021-11-07 08:04:15,461 INFO L87 Difference]: Start difference. First operand 842 states and 1121 transitions. Second operand has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:04:25,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:04:25,328 INFO L93 Difference]: Finished difference Result 3402 states and 4780 transitions. [2021-11-07 08:04:25,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-07 08:04:25,329 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 08:04:25,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:04:25,332 INFO L225 Difference]: With dead ends: 3402 [2021-11-07 08:04:25,332 INFO L226 Difference]: Without dead ends: 3153 [2021-11-07 08:04:25,334 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=508, Invalid=2914, Unknown=0, NotChecked=0, Total=3422 [2021-11-07 08:04:25,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3153 states. [2021-11-07 08:04:25,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3153 to 847. [2021-11-07 08:04:25,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 831 states have (on average 1.3561973525872444) internal successors, (1127), 846 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:04:25,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1127 transitions. [2021-11-07 08:04:25,672 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1127 transitions. Word has length 81 [2021-11-07 08:04:25,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:04:25,672 INFO L470 AbstractCegarLoop]: Abstraction has 847 states and 1127 transitions. [2021-11-07 08:04:25,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:04:25,672 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1127 transitions. [2021-11-07 08:04:25,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 08:04:25,673 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:04:25,673 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] [2021-11-07 08:04:25,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-11-07 08:04:25,673 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:04:25,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:04:25,674 INFO L85 PathProgramCache]: Analyzing trace with hash 487027968, now seen corresponding path program 1 times [2021-11-07 08:04:25,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:04:25,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448445199] [2021-11-07 08:04:25,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:04:25,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:04:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:04:26,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:04:26,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:04:26,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448445199] [2021-11-07 08:04:26,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448445199] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:04:26,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:04:26,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-07 08:04:26,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135898032] [2021-11-07 08:04:26,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-07 08:04:26,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:04:26,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-07 08:04:26,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=716, Unknown=0, NotChecked=0, Total=812 [2021-11-07 08:04:26,986 INFO L87 Difference]: Start difference. First operand 847 states and 1127 transitions. Second operand has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:04:36,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:04:36,208 INFO L93 Difference]: Finished difference Result 2752 states and 3726 transitions. [2021-11-07 08:04:36,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-07 08:04:36,209 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 08:04:36,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:04:36,211 INFO L225 Difference]: With dead ends: 2752 [2021-11-07 08:04:36,211 INFO L226 Difference]: Without dead ends: 2502 [2021-11-07 08:04:36,213 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=468, Invalid=2184, Unknown=0, NotChecked=0, Total=2652 [2021-11-07 08:04:36,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2502 states. [2021-11-07 08:04:36,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2502 to 858. [2021-11-07 08:04:36,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 842 states have (on average 1.355106888361045) internal successors, (1141), 857 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:04:36,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1141 transitions. [2021-11-07 08:04:36,536 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1141 transitions. Word has length 81 [2021-11-07 08:04:36,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:04:36,536 INFO L470 AbstractCegarLoop]: Abstraction has 858 states and 1141 transitions. [2021-11-07 08:04:36,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:04:36,537 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1141 transitions. [2021-11-07 08:04:36,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 08:04:36,538 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:04:36,538 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] [2021-11-07 08:04:36,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-11-07 08:04:36,539 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:04:36,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:04:36,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1444511641, now seen corresponding path program 1 times [2021-11-07 08:04:36,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:04:36,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223384572] [2021-11-07 08:04:36,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:04:36,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:04:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:04:37,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:04:37,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:04:37,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223384572] [2021-11-07 08:04:37,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223384572] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:04:37,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:04:37,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-07 08:04:37,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420153810] [2021-11-07 08:04:37,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-07 08:04:37,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:04:37,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-07 08:04:37,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=720, Unknown=0, NotChecked=0, Total=812 [2021-11-07 08:04:37,883 INFO L87 Difference]: Start difference. First operand 858 states and 1141 transitions. Second operand has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:04:47,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:04:47,904 INFO L93 Difference]: Finished difference Result 3250 states and 4508 transitions. [2021-11-07 08:04:47,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-07 08:04:47,904 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 08:04:47,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:04:47,907 INFO L225 Difference]: With dead ends: 3250 [2021-11-07 08:04:47,908 INFO L226 Difference]: Without dead ends: 2997 [2021-11-07 08:04:47,909 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=503, Invalid=2467, Unknown=0, NotChecked=0, Total=2970 [2021-11-07 08:04:47,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2021-11-07 08:04:48,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 863. [2021-11-07 08:04:48,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 847 states have (on average 1.3541912632821724) internal successors, (1147), 862 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:04:48,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1147 transitions. [2021-11-07 08:04:48,213 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1147 transitions. Word has length 81 [2021-11-07 08:04:48,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:04:48,213 INFO L470 AbstractCegarLoop]: Abstraction has 863 states and 1147 transitions. [2021-11-07 08:04:48,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:04:48,214 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1147 transitions. [2021-11-07 08:04:48,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 08:04:48,215 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:04:48,215 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] [2021-11-07 08:04:48,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-11-07 08:04:48,215 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:04:48,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:04:48,216 INFO L85 PathProgramCache]: Analyzing trace with hash -993396760, now seen corresponding path program 1 times [2021-11-07 08:04:48,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:04:48,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624828263] [2021-11-07 08:04:48,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:04:48,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:04:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:04:49,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:04:49,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:04:49,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624828263] [2021-11-07 08:04:49,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624828263] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:04:49,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:04:49,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-07 08:04:49,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108129464] [2021-11-07 08:04:49,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-07 08:04:49,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:04:49,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-07 08:04:49,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=723, Unknown=0, NotChecked=0, Total=812 [2021-11-07 08:04:49,670 INFO L87 Difference]: Start difference. First operand 863 states and 1147 transitions. Second operand has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:00,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:00,391 INFO L93 Difference]: Finished difference Result 3460 states and 4854 transitions. [2021-11-07 08:05:00,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-07 08:05:00,391 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 08:05:00,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:00,394 INFO L225 Difference]: With dead ends: 3460 [2021-11-07 08:05:00,395 INFO L226 Difference]: Without dead ends: 3207 [2021-11-07 08:05:00,396 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=598, Invalid=2708, Unknown=0, NotChecked=0, Total=3306 [2021-11-07 08:05:00,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3207 states. [2021-11-07 08:05:00,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3207 to 862. [2021-11-07 08:05:00,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 846 states have (on average 1.3522458628841607) internal successors, (1144), 861 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:00,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1144 transitions. [2021-11-07 08:05:00,716 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1144 transitions. Word has length 81 [2021-11-07 08:05:00,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:00,717 INFO L470 AbstractCegarLoop]: Abstraction has 862 states and 1144 transitions. [2021-11-07 08:05:00,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:00,717 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1144 transitions. [2021-11-07 08:05:00,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 08:05:00,718 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:00,718 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] [2021-11-07 08:05:00,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-11-07 08:05:00,718 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:05:00,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:00,719 INFO L85 PathProgramCache]: Analyzing trace with hash -196564926, now seen corresponding path program 1 times [2021-11-07 08:05:00,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:00,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456175420] [2021-11-07 08:05:00,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:00,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:02,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:05:02,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:02,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456175420] [2021-11-07 08:05:02,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456175420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:02,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:02,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-11-07 08:05:02,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963993230] [2021-11-07 08:05:02,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-07 08:05:02,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:02,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-07 08:05:02,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=777, Unknown=0, NotChecked=0, Total=870 [2021-11-07 08:05:02,081 INFO L87 Difference]: Start difference. First operand 862 states and 1144 transitions. Second operand has 30 states, 30 states have (on average 2.7) internal successors, (81), 30 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:13,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:13,457 INFO L93 Difference]: Finished difference Result 3417 states and 4795 transitions. [2021-11-07 08:05:13,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-07 08:05:13,458 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.7) internal successors, (81), 30 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 08:05:13,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:13,461 INFO L225 Difference]: With dead ends: 3417 [2021-11-07 08:05:13,461 INFO L226 Difference]: Without dead ends: 3168 [2021-11-07 08:05:13,462 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 677 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=613, Invalid=3047, Unknown=0, NotChecked=0, Total=3660 [2021-11-07 08:05:13,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3168 states. [2021-11-07 08:05:13,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3168 to 862. [2021-11-07 08:05:13,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 846 states have (on average 1.3498817966903074) internal successors, (1142), 861 states have internal predecessors, (1142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:13,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1142 transitions. [2021-11-07 08:05:13,793 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1142 transitions. Word has length 81 [2021-11-07 08:05:13,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:13,793 INFO L470 AbstractCegarLoop]: Abstraction has 862 states and 1142 transitions. [2021-11-07 08:05:13,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.7) internal successors, (81), 30 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:13,794 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1142 transitions. [2021-11-07 08:05:13,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 08:05:13,795 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:13,795 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] [2021-11-07 08:05:13,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-11-07 08:05:13,795 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:05:13,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:13,795 INFO L85 PathProgramCache]: Analyzing trace with hash 2010934319, now seen corresponding path program 1 times [2021-11-07 08:05:13,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:13,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808868779] [2021-11-07 08:05:13,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:13,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:15,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:05:15,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:15,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808868779] [2021-11-07 08:05:15,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808868779] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:15,085 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:15,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-07 08:05:15,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395685892] [2021-11-07 08:05:15,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-07 08:05:15,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:15,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-07 08:05:15,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2021-11-07 08:05:15,087 INFO L87 Difference]: Start difference. First operand 862 states and 1142 transitions. Second operand has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:24,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:24,068 INFO L93 Difference]: Finished difference Result 2449 states and 3317 transitions. [2021-11-07 08:05:24,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-07 08:05:24,069 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 08:05:24,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:24,071 INFO L225 Difference]: With dead ends: 2449 [2021-11-07 08:05:24,071 INFO L226 Difference]: Without dead ends: 2196 [2021-11-07 08:05:24,071 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=550, Invalid=2312, Unknown=0, NotChecked=0, Total=2862 [2021-11-07 08:05:24,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2196 states. [2021-11-07 08:05:24,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2196 to 873. [2021-11-07 08:05:24,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 857 states have (on average 1.3465577596266045) internal successors, (1154), 872 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:24,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1154 transitions. [2021-11-07 08:05:24,393 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1154 transitions. Word has length 81 [2021-11-07 08:05:24,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:24,393 INFO L470 AbstractCegarLoop]: Abstraction has 873 states and 1154 transitions. [2021-11-07 08:05:24,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:24,393 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1154 transitions. [2021-11-07 08:05:24,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 08:05:24,394 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:24,395 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] [2021-11-07 08:05:24,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-11-07 08:05:24,395 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:05:24,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:24,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1665113160, now seen corresponding path program 1 times [2021-11-07 08:05:24,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:24,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100774619] [2021-11-07 08:05:24,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:24,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:25,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:05:25,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:25,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100774619] [2021-11-07 08:05:25,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100774619] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:25,720 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:25,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-11-07 08:05:25,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794154497] [2021-11-07 08:05:25,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-07 08:05:25,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:25,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-07 08:05:25,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=778, Unknown=0, NotChecked=0, Total=870 [2021-11-07 08:05:25,722 INFO L87 Difference]: Start difference. First operand 873 states and 1154 transitions. Second operand has 30 states, 30 states have (on average 2.7) internal successors, (81), 30 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:36,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:36,772 INFO L93 Difference]: Finished difference Result 3423 states and 4799 transitions. [2021-11-07 08:05:36,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-07 08:05:36,773 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.7) internal successors, (81), 30 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 08:05:36,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:36,775 INFO L225 Difference]: With dead ends: 3423 [2021-11-07 08:05:36,776 INFO L226 Difference]: Without dead ends: 3174 [2021-11-07 08:05:36,777 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=608, Invalid=2932, Unknown=0, NotChecked=0, Total=3540 [2021-11-07 08:05:36,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3174 states. [2021-11-07 08:05:37,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3174 to 878. [2021-11-07 08:05:37,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 862 states have (on average 1.345707656612529) internal successors, (1160), 877 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:37,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1160 transitions. [2021-11-07 08:05:37,121 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1160 transitions. Word has length 81 [2021-11-07 08:05:37,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:37,121 INFO L470 AbstractCegarLoop]: Abstraction has 878 states and 1160 transitions. [2021-11-07 08:05:37,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.7) internal successors, (81), 30 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:37,122 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1160 transitions. [2021-11-07 08:05:37,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 08:05:37,122 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:37,123 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] [2021-11-07 08:05:37,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-11-07 08:05:37,123 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:05:37,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:37,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1691089821, now seen corresponding path program 1 times [2021-11-07 08:05:37,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:37,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779658597] [2021-11-07 08:05:37,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:37,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:38,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:05:38,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:38,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779658597] [2021-11-07 08:05:38,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779658597] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:38,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:38,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-11-07 08:05:38,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754114779] [2021-11-07 08:05:38,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-07 08:05:38,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:38,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-07 08:05:38,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=775, Unknown=0, NotChecked=0, Total=870 [2021-11-07 08:05:38,273 INFO L87 Difference]: Start difference. First operand 878 states and 1160 transitions. Second operand has 30 states, 30 states have (on average 2.7) internal successors, (81), 30 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:49,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:49,467 INFO L93 Difference]: Finished difference Result 3460 states and 4849 transitions. [2021-11-07 08:05:49,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-07 08:05:49,467 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.7) internal successors, (81), 30 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 08:05:49,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:49,470 INFO L225 Difference]: With dead ends: 3460 [2021-11-07 08:05:49,470 INFO L226 Difference]: Without dead ends: 3211 [2021-11-07 08:05:49,471 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=578, Invalid=2614, Unknown=0, NotChecked=0, Total=3192 [2021-11-07 08:05:49,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3211 states. [2021-11-07 08:05:49,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3211 to 878. [2021-11-07 08:05:49,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 862 states have (on average 1.3433874709976799) internal successors, (1158), 877 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:49,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1158 transitions. [2021-11-07 08:05:49,846 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1158 transitions. Word has length 81 [2021-11-07 08:05:49,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:49,847 INFO L470 AbstractCegarLoop]: Abstraction has 878 states and 1158 transitions. [2021-11-07 08:05:49,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.7) internal successors, (81), 30 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:49,847 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1158 transitions. [2021-11-07 08:05:49,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:05:49,848 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:49,848 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] [2021-11-07 08:05:49,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-11-07 08:05:49,848 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:05:49,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:49,848 INFO L85 PathProgramCache]: Analyzing trace with hash 2090211926, now seen corresponding path program 1 times [2021-11-07 08:05:49,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:49,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689459458] [2021-11-07 08:05:49,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:49,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:50,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:05:50,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:50,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689459458] [2021-11-07 08:05:50,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689459458] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:50,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:50,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-07 08:05:50,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288475973] [2021-11-07 08:05:50,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 08:05:50,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:50,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 08:05:50,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-07 08:05:50,008 INFO L87 Difference]: Start difference. First operand 878 states and 1158 transitions. Second operand has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:55,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:55,217 INFO L93 Difference]: Finished difference Result 4292 states and 6153 transitions. [2021-11-07 08:05:55,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-07 08:05:55,218 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 08:05:55,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:55,222 INFO L225 Difference]: With dead ends: 4292 [2021-11-07 08:05:55,222 INFO L226 Difference]: Without dead ends: 4016 [2021-11-07 08:05:55,223 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2021-11-07 08:05:55,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4016 states. [2021-11-07 08:05:55,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4016 to 886. [2021-11-07 08:05:55,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 870 states have (on average 1.339080459770115) internal successors, (1165), 885 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:55,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1165 transitions. [2021-11-07 08:05:55,613 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1165 transitions. Word has length 82 [2021-11-07 08:05:55,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:55,613 INFO L470 AbstractCegarLoop]: Abstraction has 886 states and 1165 transitions. [2021-11-07 08:05:55,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:55,614 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1165 transitions. [2021-11-07 08:05:55,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:05:55,615 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:55,615 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] [2021-11-07 08:05:55,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-11-07 08:05:55,615 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:05:55,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:55,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1292332739, now seen corresponding path program 1 times [2021-11-07 08:05:55,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:55,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875120683] [2021-11-07 08:05:55,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:55,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:55,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:05:55,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:55,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875120683] [2021-11-07 08:05:55,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875120683] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:55,733 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:55,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:05:55,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804808954] [2021-11-07 08:05:55,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:05:55,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:55,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:05:55,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:05:55,735 INFO L87 Difference]: Start difference. First operand 886 states and 1165 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:57,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:05:57,992 INFO L93 Difference]: Finished difference Result 1943 states and 2721 transitions. [2021-11-07 08:05:57,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 08:05:57,993 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 08:05:57,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:05:57,995 INFO L225 Difference]: With dead ends: 1943 [2021-11-07 08:05:57,995 INFO L226 Difference]: Without dead ends: 1936 [2021-11-07 08:05:57,995 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-07 08:05:57,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2021-11-07 08:05:58,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 886. [2021-11-07 08:05:58,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 870 states have (on average 1.335632183908046) internal successors, (1162), 885 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:58,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1162 transitions. [2021-11-07 08:05:58,380 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1162 transitions. Word has length 82 [2021-11-07 08:05:58,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:05:58,381 INFO L470 AbstractCegarLoop]: Abstraction has 886 states and 1162 transitions. [2021-11-07 08:05:58,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:05:58,381 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1162 transitions. [2021-11-07 08:05:58,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:05:58,382 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:05:58,382 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] [2021-11-07 08:05:58,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-11-07 08:05:58,382 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:05:58,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:05:58,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1541081534, now seen corresponding path program 1 times [2021-11-07 08:05:58,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:05:58,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899125608] [2021-11-07 08:05:58,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:05:58,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:05:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:05:58,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:05:58,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:05:58,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899125608] [2021-11-07 08:05:58,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899125608] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:05:58,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:05:58,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 08:05:58,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420237251] [2021-11-07 08:05:58,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 08:05:58,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:05:58,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 08:05:58,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:05:58,557 INFO L87 Difference]: Start difference. First operand 886 states and 1162 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:01,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:06:01,589 INFO L93 Difference]: Finished difference Result 2094 states and 2898 transitions. [2021-11-07 08:06:01,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 08:06:01,590 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 08:06:01,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:06:01,591 INFO L225 Difference]: With dead ends: 2094 [2021-11-07 08:06:01,592 INFO L226 Difference]: Without dead ends: 2087 [2021-11-07 08:06:01,592 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 08:06:01,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2087 states. [2021-11-07 08:06:01,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2087 to 886. [2021-11-07 08:06:01,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 870 states have (on average 1.332183908045977) internal successors, (1159), 885 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:01,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1159 transitions. [2021-11-07 08:06:01,971 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1159 transitions. Word has length 82 [2021-11-07 08:06:01,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:06:01,971 INFO L470 AbstractCegarLoop]: Abstraction has 886 states and 1159 transitions. [2021-11-07 08:06:01,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:01,972 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1159 transitions. [2021-11-07 08:06:01,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:06:01,973 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:06:01,973 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] [2021-11-07 08:06:01,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-11-07 08:06:01,973 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:06:01,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:01,973 INFO L85 PathProgramCache]: Analyzing trace with hash -900458399, now seen corresponding path program 1 times [2021-11-07 08:06:01,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:01,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422056179] [2021-11-07 08:06:01,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:01,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:06:02,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:06:02,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:06:02,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422056179] [2021-11-07 08:06:02,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422056179] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:06:02,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:06:02,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-07 08:06:02,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578854263] [2021-11-07 08:06:02,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 08:06:02,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:06:02,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 08:06:02,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:06:02,343 INFO L87 Difference]: Start difference. First operand 886 states and 1159 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:04,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:06:04,557 INFO L93 Difference]: Finished difference Result 1854 states and 2491 transitions. [2021-11-07 08:06:04,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 08:06:04,558 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 08:06:04,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:06:04,559 INFO L225 Difference]: With dead ends: 1854 [2021-11-07 08:06:04,560 INFO L226 Difference]: Without dead ends: 1598 [2021-11-07 08:06:04,560 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2021-11-07 08:06:04,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2021-11-07 08:06:04,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 856. [2021-11-07 08:06:04,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 841 states have (on average 1.328180737217598) internal successors, (1117), 855 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:04,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1117 transitions. [2021-11-07 08:06:04,963 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1117 transitions. Word has length 82 [2021-11-07 08:06:04,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:06:04,963 INFO L470 AbstractCegarLoop]: Abstraction has 856 states and 1117 transitions. [2021-11-07 08:06:04,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:04,964 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1117 transitions. [2021-11-07 08:06:04,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:06:04,965 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:06:04,965 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] [2021-11-07 08:06:04,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-11-07 08:06:04,965 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:06:04,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:04,965 INFO L85 PathProgramCache]: Analyzing trace with hash 357948801, now seen corresponding path program 1 times [2021-11-07 08:06:04,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:04,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671667597] [2021-11-07 08:06:04,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:04,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:06:05,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:06:05,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:06:05,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671667597] [2021-11-07 08:06:05,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671667597] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:06:05,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:06:05,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-07 08:06:05,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412741147] [2021-11-07 08:06:05,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-07 08:06:05,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:06:05,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-07 08:06:05,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2021-11-07 08:06:05,745 INFO L87 Difference]: Start difference. First operand 856 states and 1117 transitions. Second operand has 19 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:12,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:06:12,015 INFO L93 Difference]: Finished difference Result 4122 states and 5846 transitions. [2021-11-07 08:06:12,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-07 08:06:12,016 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 08:06:12,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:06:12,019 INFO L225 Difference]: With dead ends: 4122 [2021-11-07 08:06:12,019 INFO L226 Difference]: Without dead ends: 3844 [2021-11-07 08:06:12,020 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=293, Invalid=1267, Unknown=0, NotChecked=0, Total=1560 [2021-11-07 08:06:12,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3844 states. [2021-11-07 08:06:12,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3844 to 848. [2021-11-07 08:06:12,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 833 states have (on average 1.3277310924369747) internal successors, (1106), 847 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:12,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1106 transitions. [2021-11-07 08:06:12,481 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1106 transitions. Word has length 82 [2021-11-07 08:06:12,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:06:12,481 INFO L470 AbstractCegarLoop]: Abstraction has 848 states and 1106 transitions. [2021-11-07 08:06:12,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:12,481 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1106 transitions. [2021-11-07 08:06:12,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:06:12,482 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:06:12,482 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] [2021-11-07 08:06:12,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-11-07 08:06:12,483 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:06:12,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:12,483 INFO L85 PathProgramCache]: Analyzing trace with hash 165914305, now seen corresponding path program 1 times [2021-11-07 08:06:12,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:12,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699738329] [2021-11-07 08:06:12,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:12,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:06:12,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:06:12,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:06:12,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699738329] [2021-11-07 08:06:12,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699738329] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:06:12,827 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:06:12,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-07 08:06:12,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330181716] [2021-11-07 08:06:12,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 08:06:12,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:06:12,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 08:06:12,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-07 08:06:12,828 INFO L87 Difference]: Start difference. First operand 848 states and 1106 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:15,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:06:15,394 INFO L93 Difference]: Finished difference Result 1811 states and 2435 transitions. [2021-11-07 08:06:15,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 08:06:15,395 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 08:06:15,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:06:15,396 INFO L225 Difference]: With dead ends: 1811 [2021-11-07 08:06:15,397 INFO L226 Difference]: Without dead ends: 1559 [2021-11-07 08:06:15,397 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-11-07 08:06:15,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2021-11-07 08:06:15,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 828. [2021-11-07 08:06:15,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 814 states have (on average 1.3255528255528255) internal successors, (1079), 827 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:15,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1079 transitions. [2021-11-07 08:06:15,845 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1079 transitions. Word has length 82 [2021-11-07 08:06:15,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:06:15,846 INFO L470 AbstractCegarLoop]: Abstraction has 828 states and 1079 transitions. [2021-11-07 08:06:15,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:15,846 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1079 transitions. [2021-11-07 08:06:15,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:06:15,847 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:06:15,847 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] [2021-11-07 08:06:15,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-11-07 08:06:15,847 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:06:15,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:15,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1251982765, now seen corresponding path program 1 times [2021-11-07 08:06:15,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:15,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356954897] [2021-11-07 08:06:15,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:15,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:06:16,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:06:16,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:06:16,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356954897] [2021-11-07 08:06:16,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356954897] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:06:16,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:06:16,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-07 08:06:16,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100066594] [2021-11-07 08:06:16,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 08:06:16,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:06:16,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 08:06:16,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-07 08:06:16,213 INFO L87 Difference]: Start difference. First operand 828 states and 1079 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:20,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:06:20,266 INFO L93 Difference]: Finished difference Result 3171 states and 4525 transitions. [2021-11-07 08:06:20,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-07 08:06:20,266 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 08:06:20,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:06:20,269 INFO L225 Difference]: With dead ends: 3171 [2021-11-07 08:06:20,269 INFO L226 Difference]: Without dead ends: 2879 [2021-11-07 08:06:20,270 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-11-07 08:06:20,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2021-11-07 08:06:20,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 776. [2021-11-07 08:06:20,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 764 states have (on average 1.3272251308900525) internal successors, (1014), 775 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:20,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1014 transitions. [2021-11-07 08:06:20,692 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1014 transitions. Word has length 82 [2021-11-07 08:06:20,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:06:20,692 INFO L470 AbstractCegarLoop]: Abstraction has 776 states and 1014 transitions. [2021-11-07 08:06:20,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:20,692 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1014 transitions. [2021-11-07 08:06:20,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:06:20,694 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:06:20,694 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] [2021-11-07 08:06:20,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-11-07 08:06:20,694 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:06:20,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:20,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1458202565, now seen corresponding path program 1 times [2021-11-07 08:06:20,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:20,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624808754] [2021-11-07 08:06:20,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:20,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:06:20,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:06:20,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:06:20,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624808754] [2021-11-07 08:06:20,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624808754] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:06:20,891 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:06:20,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 08:06:20,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627933321] [2021-11-07 08:06:20,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 08:06:20,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:06:20,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 08:06:20,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:06:20,892 INFO L87 Difference]: Start difference. First operand 776 states and 1014 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:23,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:06:23,219 INFO L93 Difference]: Finished difference Result 1283 states and 1719 transitions. [2021-11-07 08:06:23,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-07 08:06:23,219 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 08:06:23,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:06:23,220 INFO L225 Difference]: With dead ends: 1283 [2021-11-07 08:06:23,220 INFO L226 Difference]: Without dead ends: 1276 [2021-11-07 08:06:23,221 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=243, Invalid=627, Unknown=0, NotChecked=0, Total=870 [2021-11-07 08:06:23,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2021-11-07 08:06:23,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 780. [2021-11-07 08:06:23,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 768 states have (on average 1.32421875) internal successors, (1017), 779 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:23,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1017 transitions. [2021-11-07 08:06:23,638 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1017 transitions. Word has length 82 [2021-11-07 08:06:23,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:06:23,638 INFO L470 AbstractCegarLoop]: Abstraction has 780 states and 1017 transitions. [2021-11-07 08:06:23,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:23,639 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1017 transitions. [2021-11-07 08:06:23,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:06:23,640 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:06:23,640 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] [2021-11-07 08:06:23,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-11-07 08:06:23,641 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:06:23,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:23,641 INFO L85 PathProgramCache]: Analyzing trace with hash -983337368, now seen corresponding path program 1 times [2021-11-07 08:06:23,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:23,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144025111] [2021-11-07 08:06:23,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:23,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:06:23,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:06:23,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:06:23,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144025111] [2021-11-07 08:06:23,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144025111] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:06:23,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:06:23,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-07 08:06:23,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200746928] [2021-11-07 08:06:23,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 08:06:23,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:06:23,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 08:06:23,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:06:23,976 INFO L87 Difference]: Start difference. First operand 780 states and 1017 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:26,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:06:26,087 INFO L93 Difference]: Finished difference Result 1460 states and 1936 transitions. [2021-11-07 08:06:26,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 08:06:26,093 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 08:06:26,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:06:26,095 INFO L225 Difference]: With dead ends: 1460 [2021-11-07 08:06:26,095 INFO L226 Difference]: Without dead ends: 1456 [2021-11-07 08:06:26,095 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2021-11-07 08:06:26,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2021-11-07 08:06:26,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 770. [2021-11-07 08:06:26,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 759 states have (on average 1.3254281949934124) internal successors, (1006), 769 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:26,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 1006 transitions. [2021-11-07 08:06:26,519 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 1006 transitions. Word has length 82 [2021-11-07 08:06:26,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:06:26,519 INFO L470 AbstractCegarLoop]: Abstraction has 770 states and 1006 transitions. [2021-11-07 08:06:26,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:26,519 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 1006 transitions. [2021-11-07 08:06:26,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:06:26,520 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:06:26,520 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] [2021-11-07 08:06:26,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-11-07 08:06:26,520 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:06:26,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:26,521 INFO L85 PathProgramCache]: Analyzing trace with hash 275069832, now seen corresponding path program 1 times [2021-11-07 08:06:26,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:26,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838117540] [2021-11-07 08:06:26,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:26,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:06:28,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:06:28,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:06:28,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838117540] [2021-11-07 08:06:28,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838117540] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:06:28,190 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:06:28,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-11-07 08:06:28,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300028989] [2021-11-07 08:06:28,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-07 08:06:28,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:06:28,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-07 08:06:28,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2021-11-07 08:06:28,191 INFO L87 Difference]: Start difference. First operand 770 states and 1006 transitions. Second operand has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:35,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:06:35,666 INFO L93 Difference]: Finished difference Result 1711 states and 2294 transitions. [2021-11-07 08:06:35,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-07 08:06:35,666 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 08:06:35,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:06:35,668 INFO L225 Difference]: With dead ends: 1711 [2021-11-07 08:06:35,668 INFO L226 Difference]: Without dead ends: 1701 [2021-11-07 08:06:35,669 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=458, Invalid=2092, Unknown=0, NotChecked=0, Total=2550 [2021-11-07 08:06:35,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1701 states. [2021-11-07 08:06:36,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1701 to 766. [2021-11-07 08:06:36,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 755 states have (on average 1.3258278145695364) internal successors, (1001), 765 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:36,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1001 transitions. [2021-11-07 08:06:36,095 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1001 transitions. Word has length 82 [2021-11-07 08:06:36,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:06:36,095 INFO L470 AbstractCegarLoop]: Abstraction has 766 states and 1001 transitions. [2021-11-07 08:06:36,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:36,096 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1001 transitions. [2021-11-07 08:06:36,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:06:36,097 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:06:36,097 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] [2021-11-07 08:06:36,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-11-07 08:06:36,097 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:06:36,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:36,097 INFO L85 PathProgramCache]: Analyzing trace with hash -2029593681, now seen corresponding path program 1 times [2021-11-07 08:06:36,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:36,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212420528] [2021-11-07 08:06:36,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:36,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:06:36,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:06:36,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:06:36,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212420528] [2021-11-07 08:06:36,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212420528] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:06:36,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:06:36,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-07 08:06:36,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426899410] [2021-11-07 08:06:36,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-07 08:06:36,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:06:36,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-07 08:06:36,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-11-07 08:06:36,573 INFO L87 Difference]: Start difference. First operand 766 states and 1001 transitions. Second operand has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:40,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:06:40,026 INFO L93 Difference]: Finished difference Result 2218 states and 3116 transitions. [2021-11-07 08:06:40,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 08:06:40,027 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 08:06:40,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:06:40,028 INFO L225 Difference]: With dead ends: 2218 [2021-11-07 08:06:40,029 INFO L226 Difference]: Without dead ends: 1942 [2021-11-07 08:06:40,029 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=218, Invalid=712, Unknown=0, NotChecked=0, Total=930 [2021-11-07 08:06:40,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1942 states. [2021-11-07 08:06:40,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1942 to 737. [2021-11-07 08:06:40,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 726 states have (on average 1.3264462809917354) internal successors, (963), 736 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:40,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 963 transitions. [2021-11-07 08:06:40,471 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 963 transitions. Word has length 82 [2021-11-07 08:06:40,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:06:40,471 INFO L470 AbstractCegarLoop]: Abstraction has 737 states and 963 transitions. [2021-11-07 08:06:40,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:40,471 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 963 transitions. [2021-11-07 08:06:40,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:06:40,472 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:06:40,472 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] [2021-11-07 08:06:40,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-11-07 08:06:40,472 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:06:40,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:40,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1845524278, now seen corresponding path program 1 times [2021-11-07 08:06:40,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:40,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980303203] [2021-11-07 08:06:40,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:40,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:06:41,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:06:41,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:06:41,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980303203] [2021-11-07 08:06:41,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980303203] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:06:41,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:06:41,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-07 08:06:41,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875882341] [2021-11-07 08:06:41,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-07 08:06:41,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:06:41,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-07 08:06:41,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-11-07 08:06:41,020 INFO L87 Difference]: Start difference. First operand 737 states and 963 transitions. Second operand has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:44,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:06:44,189 INFO L93 Difference]: Finished difference Result 1741 states and 2369 transitions. [2021-11-07 08:06:44,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-07 08:06:44,190 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 08:06:44,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:06:44,191 INFO L225 Difference]: With dead ends: 1741 [2021-11-07 08:06:44,191 INFO L226 Difference]: Without dead ends: 1488 [2021-11-07 08:06:44,192 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=241, Invalid=949, Unknown=0, NotChecked=0, Total=1190 [2021-11-07 08:06:44,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2021-11-07 08:06:44,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 748. [2021-11-07 08:06:44,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 737 states have (on average 1.322930800542741) internal successors, (975), 747 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:44,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 975 transitions. [2021-11-07 08:06:44,622 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 975 transitions. Word has length 82 [2021-11-07 08:06:44,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:06:44,622 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 975 transitions. [2021-11-07 08:06:44,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:44,623 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 975 transitions. [2021-11-07 08:06:44,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:06:44,623 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:06:44,623 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] [2021-11-07 08:06:44,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-11-07 08:06:44,624 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:06:44,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:44,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1017799404, now seen corresponding path program 1 times [2021-11-07 08:06:44,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:44,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754161267] [2021-11-07 08:06:44,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:44,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:06:45,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:06:45,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:06:45,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754161267] [2021-11-07 08:06:45,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754161267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:06:45,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:06:45,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-07 08:06:45,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881694053] [2021-11-07 08:06:45,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-07 08:06:45,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:06:45,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-07 08:06:45,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-11-07 08:06:45,171 INFO L87 Difference]: Start difference. First operand 748 states and 975 transitions. Second operand has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:47,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:06:47,695 INFO L93 Difference]: Finished difference Result 1587 states and 2161 transitions. [2021-11-07 08:06:47,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 08:06:47,695 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 08:06:47,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:06:47,697 INFO L225 Difference]: With dead ends: 1587 [2021-11-07 08:06:47,697 INFO L226 Difference]: Without dead ends: 1330 [2021-11-07 08:06:47,697 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=186, Invalid=626, Unknown=0, NotChecked=0, Total=812 [2021-11-07 08:06:47,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2021-11-07 08:06:48,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 748. [2021-11-07 08:06:48,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 737 states have (on average 1.322930800542741) internal successors, (975), 747 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:48,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 975 transitions. [2021-11-07 08:06:48,116 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 975 transitions. Word has length 82 [2021-11-07 08:06:48,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:06:48,116 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 975 transitions. [2021-11-07 08:06:48,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:48,116 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 975 transitions. [2021-11-07 08:06:48,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:06:48,117 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:06:48,117 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] [2021-11-07 08:06:48,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-11-07 08:06:48,118 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:06:48,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:48,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1246312135, now seen corresponding path program 1 times [2021-11-07 08:06:48,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:48,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331606867] [2021-11-07 08:06:48,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:48,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:48,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:06:48,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:06:48,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:06:48,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331606867] [2021-11-07 08:06:48,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331606867] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:06:48,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:06:48,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-07 08:06:48,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834163975] [2021-11-07 08:06:48,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-07 08:06:48,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:06:48,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-07 08:06:48,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-11-07 08:06:48,627 INFO L87 Difference]: Start difference. First operand 748 states and 975 transitions. Second operand has 16 states, 16 states have (on average 5.125) internal successors, (82), 16 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:50,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:06:50,796 INFO L93 Difference]: Finished difference Result 1505 states and 2057 transitions. [2021-11-07 08:06:50,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-07 08:06:50,797 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.125) internal successors, (82), 16 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 08:06:50,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:06:50,798 INFO L225 Difference]: With dead ends: 1505 [2021-11-07 08:06:50,798 INFO L226 Difference]: Without dead ends: 1191 [2021-11-07 08:06:50,799 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=196, Invalid=734, Unknown=0, NotChecked=0, Total=930 [2021-11-07 08:06:50,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2021-11-07 08:06:51,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 694. [2021-11-07 08:06:51,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 685 states have (on average 1.3299270072992702) internal successors, (911), 693 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:51,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 911 transitions. [2021-11-07 08:06:51,250 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 911 transitions. Word has length 82 [2021-11-07 08:06:51,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:06:51,251 INFO L470 AbstractCegarLoop]: Abstraction has 694 states and 911 transitions. [2021-11-07 08:06:51,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.125) internal successors, (82), 16 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:51,251 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 911 transitions. [2021-11-07 08:06:51,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:06:51,251 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:06:51,252 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] [2021-11-07 08:06:51,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-11-07 08:06:51,252 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:06:51,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:51,252 INFO L85 PathProgramCache]: Analyzing trace with hash -314968260, now seen corresponding path program 1 times [2021-11-07 08:06:51,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:51,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616384607] [2021-11-07 08:06:51,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:51,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:06:51,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:06:51,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:06:51,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616384607] [2021-11-07 08:06:51,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616384607] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:06:51,433 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:06:51,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 08:06:51,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403912633] [2021-11-07 08:06:51,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 08:06:51,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:06:51,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 08:06:51,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:06:51,435 INFO L87 Difference]: Start difference. First operand 694 states and 911 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:54,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:06:54,892 INFO L93 Difference]: Finished difference Result 1878 states and 2625 transitions. [2021-11-07 08:06:54,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 08:06:54,892 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 08:06:54,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:06:54,894 INFO L225 Difference]: With dead ends: 1878 [2021-11-07 08:06:54,894 INFO L226 Difference]: Without dead ends: 1871 [2021-11-07 08:06:54,894 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 08:06:54,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2021-11-07 08:06:55,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 694. [2021-11-07 08:06:55,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 685 states have (on average 1.3255474452554745) internal successors, (908), 693 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:55,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 908 transitions. [2021-11-07 08:06:55,309 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 908 transitions. Word has length 82 [2021-11-07 08:06:55,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:06:55,309 INFO L470 AbstractCegarLoop]: Abstraction has 694 states and 908 transitions. [2021-11-07 08:06:55,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:55,309 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 908 transitions. [2021-11-07 08:06:55,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:06:55,310 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:06:55,310 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] [2021-11-07 08:06:55,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-11-07 08:06:55,310 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:06:55,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:55,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1563734439, now seen corresponding path program 1 times [2021-11-07 08:06:55,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:55,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465256609] [2021-11-07 08:06:55,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:55,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:06:55,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:06:55,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:06:55,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465256609] [2021-11-07 08:06:55,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465256609] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:06:55,972 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:06:55,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-11-07 08:06:55,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781166437] [2021-11-07 08:06:55,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-07 08:06:55,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:06:55,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-07 08:06:55,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2021-11-07 08:06:55,973 INFO L87 Difference]: Start difference. First operand 694 states and 908 transitions. Second operand has 20 states, 20 states have (on average 4.1) internal successors, (82), 20 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:01,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:07:01,018 INFO L93 Difference]: Finished difference Result 2543 states and 3588 transitions. [2021-11-07 08:07:01,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 08:07:01,018 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.1) internal successors, (82), 20 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 08:07:01,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:07:01,020 INFO L225 Difference]: With dead ends: 2543 [2021-11-07 08:07:01,020 INFO L226 Difference]: Without dead ends: 2223 [2021-11-07 08:07:01,021 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2021-11-07 08:07:01,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2021-11-07 08:07:01,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 646. [2021-11-07 08:07:01,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 637 states have (on average 1.3328100470957613) internal successors, (849), 645 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:01,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 849 transitions. [2021-11-07 08:07:01,467 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 849 transitions. Word has length 82 [2021-11-07 08:07:01,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:07:01,467 INFO L470 AbstractCegarLoop]: Abstraction has 646 states and 849 transitions. [2021-11-07 08:07:01,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.1) internal successors, (82), 20 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:01,467 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 849 transitions. [2021-11-07 08:07:01,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:07:01,468 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:07:01,468 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] [2021-11-07 08:07:01,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-11-07 08:07:01,468 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:07:01,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:07:01,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1537704662, now seen corresponding path program 1 times [2021-11-07 08:07:01,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:07:01,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204030391] [2021-11-07 08:07:01,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:07:01,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:07:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:07:01,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:07:01,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:07:01,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204030391] [2021-11-07 08:07:01,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204030391] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:07:01,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:07:01,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-07 08:07:01,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360175629] [2021-11-07 08:07:01,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-07 08:07:01,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:07:01,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-07 08:07:01,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-11-07 08:07:01,842 INFO L87 Difference]: Start difference. First operand 646 states and 849 transitions. Second operand has 15 states, 15 states have (on average 5.466666666666667) internal successors, (82), 15 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:04,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:07:04,991 INFO L93 Difference]: Finished difference Result 2341 states and 3324 transitions. [2021-11-07 08:07:04,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 08:07:04,991 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.466666666666667) internal successors, (82), 15 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 08:07:04,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:07:04,993 INFO L225 Difference]: With dead ends: 2341 [2021-11-07 08:07:04,993 INFO L226 Difference]: Without dead ends: 1966 [2021-11-07 08:07:04,993 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2021-11-07 08:07:04,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2021-11-07 08:07:05,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 529. [2021-11-07 08:07:05,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 521 states have (on average 1.345489443378119) internal successors, (701), 528 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:05,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 701 transitions. [2021-11-07 08:07:05,405 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 701 transitions. Word has length 82 [2021-11-07 08:07:05,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:07:05,405 INFO L470 AbstractCegarLoop]: Abstraction has 529 states and 701 transitions. [2021-11-07 08:07:05,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.466666666666667) internal successors, (82), 15 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:05,405 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 701 transitions. [2021-11-07 08:07:05,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:07:05,406 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:07:05,406 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] [2021-11-07 08:07:05,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-11-07 08:07:05,406 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:07:05,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:07:05,407 INFO L85 PathProgramCache]: Analyzing trace with hash -219129444, now seen corresponding path program 1 times [2021-11-07 08:07:05,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:07:05,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355774766] [2021-11-07 08:07:05,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:07:05,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:07:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:07:06,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:07:06,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:07:06,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355774766] [2021-11-07 08:07:06,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355774766] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:07:06,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:07:06,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-11-07 08:07:06,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066841200] [2021-11-07 08:07:06,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-07 08:07:06,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:07:06,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-07 08:07:06,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2021-11-07 08:07:06,547 INFO L87 Difference]: Start difference. First operand 529 states and 701 transitions. Second operand has 24 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 24 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:14,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:07:14,695 INFO L93 Difference]: Finished difference Result 1791 states and 2497 transitions. [2021-11-07 08:07:14,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-07 08:07:14,695 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 24 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 08:07:14,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:07:14,697 INFO L225 Difference]: With dead ends: 1791 [2021-11-07 08:07:14,697 INFO L226 Difference]: Without dead ends: 1541 [2021-11-07 08:07:14,698 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=548, Invalid=2314, Unknown=0, NotChecked=0, Total=2862 [2021-11-07 08:07:14,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2021-11-07 08:07:15,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 540. [2021-11-07 08:07:15,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 532 states have (on average 1.3421052631578947) internal successors, (714), 539 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:15,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 714 transitions. [2021-11-07 08:07:15,159 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 714 transitions. Word has length 82 [2021-11-07 08:07:15,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:07:15,160 INFO L470 AbstractCegarLoop]: Abstraction has 540 states and 714 transitions. [2021-11-07 08:07:15,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 24 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:15,160 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 714 transitions. [2021-11-07 08:07:15,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:07:15,160 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:07:15,161 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] [2021-11-07 08:07:15,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-11-07 08:07:15,161 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:07:15,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:07:15,161 INFO L85 PathProgramCache]: Analyzing trace with hash 2144298243, now seen corresponding path program 1 times [2021-11-07 08:07:15,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:07:15,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024847381] [2021-11-07 08:07:15,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:07:15,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:07:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:07:16,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:07:16,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:07:16,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024847381] [2021-11-07 08:07:16,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024847381] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:07:16,405 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:07:16,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-11-07 08:07:16,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334317298] [2021-11-07 08:07:16,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-07 08:07:16,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:07:16,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-07 08:07:16,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-11-07 08:07:16,406 INFO L87 Difference]: Start difference. First operand 540 states and 714 transitions. Second operand has 25 states, 25 states have (on average 3.28) internal successors, (82), 25 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:23,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:07:23,555 INFO L93 Difference]: Finished difference Result 2014 states and 2861 transitions. [2021-11-07 08:07:23,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-07 08:07:23,556 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.28) internal successors, (82), 25 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 08:07:23,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:07:23,557 INFO L225 Difference]: With dead ends: 2014 [2021-11-07 08:07:23,557 INFO L226 Difference]: Without dead ends: 1761 [2021-11-07 08:07:23,558 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=436, Invalid=1916, Unknown=0, NotChecked=0, Total=2352 [2021-11-07 08:07:23,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2021-11-07 08:07:24,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 545. [2021-11-07 08:07:24,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 537 states have (on average 1.3407821229050279) internal successors, (720), 544 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:24,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 720 transitions. [2021-11-07 08:07:24,019 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 720 transitions. Word has length 82 [2021-11-07 08:07:24,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:07:24,020 INFO L470 AbstractCegarLoop]: Abstraction has 545 states and 720 transitions. [2021-11-07 08:07:24,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.28) internal successors, (82), 25 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:24,020 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 720 transitions. [2021-11-07 08:07:24,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 08:07:24,021 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:07:24,021 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] [2021-11-07 08:07:24,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-11-07 08:07:24,022 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:07:24,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:07:24,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1699554172, now seen corresponding path program 1 times [2021-11-07 08:07:24,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:07:24,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422895231] [2021-11-07 08:07:24,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:07:24,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:07:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:07:24,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:07:24,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:07:24,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422895231] [2021-11-07 08:07:24,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422895231] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:07:24,324 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:07:24,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-07 08:07:24,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255999523] [2021-11-07 08:07:24,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 08:07:24,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:07:24,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 08:07:24,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-07 08:07:24,325 INFO L87 Difference]: Start difference. First operand 545 states and 720 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:27,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:07:27,804 INFO L93 Difference]: Finished difference Result 2484 states and 3618 transitions. [2021-11-07 08:07:27,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 08:07:27,804 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 08:07:27,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:07:27,806 INFO L225 Difference]: With dead ends: 2484 [2021-11-07 08:07:27,806 INFO L226 Difference]: Without dead ends: 2203 [2021-11-07 08:07:27,807 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2021-11-07 08:07:27,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2203 states. [2021-11-07 08:07:28,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2203 to 510. [2021-11-07 08:07:28,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 503 states have (on average 1.341948310139165) internal successors, (675), 509 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:28,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 675 transitions. [2021-11-07 08:07:28,276 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 675 transitions. Word has length 82 [2021-11-07 08:07:28,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:07:28,276 INFO L470 AbstractCegarLoop]: Abstraction has 510 states and 675 transitions. [2021-11-07 08:07:28,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:28,277 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 675 transitions. [2021-11-07 08:07:28,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 08:07:28,277 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:07:28,277 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] [2021-11-07 08:07:28,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-11-07 08:07:28,277 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:07:28,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:07:28,278 INFO L85 PathProgramCache]: Analyzing trace with hash 815483347, now seen corresponding path program 1 times [2021-11-07 08:07:28,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:07:28,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033574823] [2021-11-07 08:07:28,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:07:28,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:07:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:07:28,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:07:28,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:07:28,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033574823] [2021-11-07 08:07:28,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033574823] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:07:28,380 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:07:28,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:07:28,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841320831] [2021-11-07 08:07:28,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:07:28,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:07:28,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:07:28,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:07:28,382 INFO L87 Difference]: Start difference. First operand 510 states and 675 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:30,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:07:30,702 INFO L93 Difference]: Finished difference Result 1638 states and 2333 transitions. [2021-11-07 08:07:30,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 08:07:30,703 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-07 08:07:30,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:07:30,704 INFO L225 Difference]: With dead ends: 1638 [2021-11-07 08:07:30,704 INFO L226 Difference]: Without dead ends: 1362 [2021-11-07 08:07:30,705 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 [2021-11-07 08:07:30,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2021-11-07 08:07:31,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 502. [2021-11-07 08:07:31,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 495 states have (on average 1.3434343434343434) internal successors, (665), 501 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:31,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 665 transitions. [2021-11-07 08:07:31,150 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 665 transitions. Word has length 83 [2021-11-07 08:07:31,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:07:31,150 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 665 transitions. [2021-11-07 08:07:31,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:31,150 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 665 transitions. [2021-11-07 08:07:31,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 08:07:31,151 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:07:31,151 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] [2021-11-07 08:07:31,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-11-07 08:07:31,151 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:07:31,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:07:31,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1147691147, now seen corresponding path program 1 times [2021-11-07 08:07:31,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:07:31,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511586527] [2021-11-07 08:07:31,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:07:31,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:07:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:07:31,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:07:31,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:07:31,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511586527] [2021-11-07 08:07:31,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511586527] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:07:31,854 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:07:31,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-11-07 08:07:31,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428810384] [2021-11-07 08:07:31,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-07 08:07:31,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:07:31,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-07 08:07:31,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2021-11-07 08:07:31,855 INFO L87 Difference]: Start difference. First operand 502 states and 665 transitions. Second operand has 20 states, 20 states have (on average 4.15) internal successors, (83), 20 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:37,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:07:37,463 INFO L93 Difference]: Finished difference Result 2076 states and 2933 transitions. [2021-11-07 08:07:37,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-07 08:07:37,464 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.15) internal successors, (83), 20 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-07 08:07:37,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:07:37,465 INFO L225 Difference]: With dead ends: 2076 [2021-11-07 08:07:37,465 INFO L226 Difference]: Without dead ends: 1826 [2021-11-07 08:07:37,466 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=249, Invalid=1311, Unknown=0, NotChecked=0, Total=1560 [2021-11-07 08:07:37,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2021-11-07 08:07:37,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 506. [2021-11-07 08:07:37,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 499 states have (on average 1.342685370741483) internal successors, (670), 505 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:37,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 670 transitions. [2021-11-07 08:07:37,971 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 670 transitions. Word has length 83 [2021-11-07 08:07:37,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:07:37,971 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 670 transitions. [2021-11-07 08:07:37,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.15) internal successors, (83), 20 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:37,971 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 670 transitions. [2021-11-07 08:07:37,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 08:07:37,972 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:07:37,972 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] [2021-11-07 08:07:37,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-11-07 08:07:37,972 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:07:37,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:07:37,972 INFO L85 PathProgramCache]: Analyzing trace with hash -766898453, now seen corresponding path program 1 times [2021-11-07 08:07:37,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:07:37,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089484198] [2021-11-07 08:07:37,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:07:37,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:07:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:07:38,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:07:38,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:07:38,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089484198] [2021-11-07 08:07:38,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089484198] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:07:38,240 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:07:38,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-07 08:07:38,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383335009] [2021-11-07 08:07:38,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 08:07:38,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:07:38,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 08:07:38,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-11-07 08:07:38,241 INFO L87 Difference]: Start difference. First operand 506 states and 670 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:41,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:07:41,097 INFO L93 Difference]: Finished difference Result 1988 states and 2801 transitions. [2021-11-07 08:07:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 08:07:41,098 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-07 08:07:41,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:07:41,099 INFO L225 Difference]: With dead ends: 1988 [2021-11-07 08:07:41,100 INFO L226 Difference]: Without dead ends: 1669 [2021-11-07 08:07:41,100 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2021-11-07 08:07:41,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2021-11-07 08:07:41,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 433. [2021-11-07 08:07:41,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 429 states have (on average 1.3566433566433567) internal successors, (582), 432 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:41,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 582 transitions. [2021-11-07 08:07:41,579 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 582 transitions. Word has length 83 [2021-11-07 08:07:41,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:07:41,579 INFO L470 AbstractCegarLoop]: Abstraction has 433 states and 582 transitions. [2021-11-07 08:07:41,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:41,579 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 582 transitions. [2021-11-07 08:07:41,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 08:07:41,579 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:07:41,579 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] [2021-11-07 08:07:41,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-11-07 08:07:41,580 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:07:41,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:07:41,580 INFO L85 PathProgramCache]: Analyzing trace with hash 31269841, now seen corresponding path program 1 times [2021-11-07 08:07:41,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:07:41,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577091322] [2021-11-07 08:07:41,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:07:41,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:07:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:07:42,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:07:42,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:07:42,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577091322] [2021-11-07 08:07:42,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577091322] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:07:42,580 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:07:42,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-11-07 08:07:42,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212732455] [2021-11-07 08:07:42,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-07 08:07:42,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:07:42,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-07 08:07:42,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=662, Unknown=0, NotChecked=0, Total=756 [2021-11-07 08:07:42,581 INFO L87 Difference]: Start difference. First operand 433 states and 582 transitions. Second operand has 28 states, 28 states have (on average 3.0) internal successors, (84), 28 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:52,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:07:52,815 INFO L93 Difference]: Finished difference Result 3725 states and 5444 transitions. [2021-11-07 08:07:52,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-07 08:07:52,816 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.0) internal successors, (84), 28 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-07 08:07:52,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:07:52,819 INFO L225 Difference]: With dead ends: 3725 [2021-11-07 08:07:52,819 INFO L226 Difference]: Without dead ends: 3719 [2021-11-07 08:07:52,820 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=455, Invalid=2407, Unknown=0, NotChecked=0, Total=2862 [2021-11-07 08:07:52,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3719 states. [2021-11-07 08:07:53,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3719 to 454. [2021-11-07 08:07:53,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 450 states have (on average 1.3511111111111112) internal successors, (608), 453 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:53,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 608 transitions. [2021-11-07 08:07:53,328 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 608 transitions. Word has length 84 [2021-11-07 08:07:53,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:07:53,329 INFO L470 AbstractCegarLoop]: Abstraction has 454 states and 608 transitions. [2021-11-07 08:07:53,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.0) internal successors, (84), 28 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:53,329 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 608 transitions. [2021-11-07 08:07:53,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 08:07:53,329 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:07:53,329 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] [2021-11-07 08:07:53,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-11-07 08:07:53,330 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:07:53,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:07:53,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1365227640, now seen corresponding path program 1 times [2021-11-07 08:07:53,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:07:53,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811294127] [2021-11-07 08:07:53,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:07:53,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:07:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:07:54,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:07:54,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:07:54,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811294127] [2021-11-07 08:07:54,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811294127] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:07:54,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:07:54,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-11-07 08:07:54,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285304847] [2021-11-07 08:07:54,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-07 08:07:54,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:07:54,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-07 08:07:54,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=573, Unknown=0, NotChecked=0, Total=650 [2021-11-07 08:07:54,114 INFO L87 Difference]: Start difference. First operand 454 states and 608 transitions. Second operand has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 26 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:00,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:08:00,063 INFO L93 Difference]: Finished difference Result 1547 states and 2153 transitions. [2021-11-07 08:08:00,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-07 08:08:00,064 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 26 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-07 08:08:00,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:08:00,065 INFO L225 Difference]: With dead ends: 1547 [2021-11-07 08:08:00,065 INFO L226 Difference]: Without dead ends: 1539 [2021-11-07 08:08:00,066 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=366, Invalid=1796, Unknown=0, NotChecked=0, Total=2162 [2021-11-07 08:08:00,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1539 states. [2021-11-07 08:08:00,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1539 to 458. [2021-11-07 08:08:00,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 454 states have (on average 1.3502202643171806) internal successors, (613), 457 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:00,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 613 transitions. [2021-11-07 08:08:00,532 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 613 transitions. Word has length 84 [2021-11-07 08:08:00,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:08:00,533 INFO L470 AbstractCegarLoop]: Abstraction has 458 states and 613 transitions. [2021-11-07 08:08:00,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 26 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:00,533 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 613 transitions. [2021-11-07 08:08:00,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 08:08:00,533 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:08:00,533 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] [2021-11-07 08:08:00,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-11-07 08:08:00,534 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:08:00,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:08:00,534 INFO L85 PathProgramCache]: Analyzing trace with hash 171018346, now seen corresponding path program 1 times [2021-11-07 08:08:00,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:08:00,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666354789] [2021-11-07 08:08:00,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:08:00,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:08:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:08:00,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:08:00,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:08:00,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666354789] [2021-11-07 08:08:00,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666354789] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:08:00,639 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:08:00,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:08:00,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801525885] [2021-11-07 08:08:00,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:08:00,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:08:00,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:08:00,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:08:00,640 INFO L87 Difference]: Start difference. First operand 458 states and 613 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:02,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:08:02,193 INFO L93 Difference]: Finished difference Result 854 states and 1197 transitions. [2021-11-07 08:08:02,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 08:08:02,193 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-07 08:08:02,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:08:02,194 INFO L225 Difference]: With dead ends: 854 [2021-11-07 08:08:02,194 INFO L226 Difference]: Without dead ends: 847 [2021-11-07 08:08:02,195 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-11-07 08:08:02,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2021-11-07 08:08:02,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 454. [2021-11-07 08:08:02,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 450 states have (on average 1.3511111111111112) internal successors, (608), 453 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:02,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 608 transitions. [2021-11-07 08:08:02,635 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 608 transitions. Word has length 84 [2021-11-07 08:08:02,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:08:02,635 INFO L470 AbstractCegarLoop]: Abstraction has 454 states and 608 transitions. [2021-11-07 08:08:02,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:02,635 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 608 transitions. [2021-11-07 08:08:02,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 08:08:02,636 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:08:02,636 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] [2021-11-07 08:08:02,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-11-07 08:08:02,636 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:08:02,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:08:02,636 INFO L85 PathProgramCache]: Analyzing trace with hash 601058947, now seen corresponding path program 1 times [2021-11-07 08:08:02,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:08:02,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91749270] [2021-11-07 08:08:02,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:08:02,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:08:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:08:03,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:08:03,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:08:03,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91749270] [2021-11-07 08:08:03,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91749270] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:08:03,640 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:08:03,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-11-07 08:08:03,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573259092] [2021-11-07 08:08:03,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-07 08:08:03,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:08:03,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-07 08:08:03,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-11-07 08:08:03,641 INFO L87 Difference]: Start difference. First operand 454 states and 608 transitions. Second operand has 24 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 24 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:08,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:08:08,588 INFO L93 Difference]: Finished difference Result 1623 states and 2301 transitions. [2021-11-07 08:08:08,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-07 08:08:08,589 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 24 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-07 08:08:08,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:08:08,590 INFO L225 Difference]: With dead ends: 1623 [2021-11-07 08:08:08,590 INFO L226 Difference]: Without dead ends: 1611 [2021-11-07 08:08:08,590 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=347, Invalid=1723, Unknown=0, NotChecked=0, Total=2070 [2021-11-07 08:08:08,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2021-11-07 08:08:09,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 451. [2021-11-07 08:08:09,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 447 states have (on average 1.3512304250559284) internal successors, (604), 450 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:09,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 604 transitions. [2021-11-07 08:08:09,040 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 604 transitions. Word has length 85 [2021-11-07 08:08:09,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:08:09,040 INFO L470 AbstractCegarLoop]: Abstraction has 451 states and 604 transitions. [2021-11-07 08:08:09,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 24 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:09,040 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 604 transitions. [2021-11-07 08:08:09,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 08:08:09,041 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:08:09,041 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] [2021-11-07 08:08:09,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-11-07 08:08:09,041 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:08:09,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:08:09,041 INFO L85 PathProgramCache]: Analyzing trace with hash -909500381, now seen corresponding path program 1 times [2021-11-07 08:08:09,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:08:09,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201050705] [2021-11-07 08:08:09,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:08:09,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:08:09,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:08:09,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:08:09,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:08:09,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201050705] [2021-11-07 08:08:09,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201050705] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:08:09,296 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:08:09,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-07 08:08:09,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479691407] [2021-11-07 08:08:09,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 08:08:09,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:08:09,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 08:08:09,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:08:09,298 INFO L87 Difference]: Start difference. First operand 451 states and 604 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:12,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:08:12,544 INFO L93 Difference]: Finished difference Result 1779 states and 2562 transitions. [2021-11-07 08:08:12,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 08:08:12,544 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-07 08:08:12,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:08:12,546 INFO L225 Difference]: With dead ends: 1779 [2021-11-07 08:08:12,546 INFO L226 Difference]: Without dead ends: 1773 [2021-11-07 08:08:12,546 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2021-11-07 08:08:12,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2021-11-07 08:08:13,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 439. [2021-11-07 08:08:13,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 436 states have (on average 1.3463302752293578) internal successors, (587), 438 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:13,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 587 transitions. [2021-11-07 08:08:13,020 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 587 transitions. Word has length 85 [2021-11-07 08:08:13,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:08:13,021 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 587 transitions. [2021-11-07 08:08:13,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:13,021 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 587 transitions. [2021-11-07 08:08:13,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 08:08:13,021 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:08:13,021 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] [2021-11-07 08:08:13,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-11-07 08:08:13,022 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:08:13,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:08:13,022 INFO L85 PathProgramCache]: Analyzing trace with hash 416742581, now seen corresponding path program 1 times [2021-11-07 08:08:13,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:08:13,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826832021] [2021-11-07 08:08:13,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:08:13,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:08:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:08:13,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:08:13,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:08:13,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826832021] [2021-11-07 08:08:13,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826832021] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:08:13,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:08:13,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-07 08:08:13,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415465536] [2021-11-07 08:08:13,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 08:08:13,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:08:13,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 08:08:13,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:08:13,314 INFO L87 Difference]: Start difference. First operand 439 states and 587 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:16,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:08:16,175 INFO L93 Difference]: Finished difference Result 1733 states and 2528 transitions. [2021-11-07 08:08:16,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 08:08:16,175 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-07 08:08:16,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:08:16,177 INFO L225 Difference]: With dead ends: 1733 [2021-11-07 08:08:16,177 INFO L226 Difference]: Without dead ends: 1721 [2021-11-07 08:08:16,177 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2021-11-07 08:08:16,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2021-11-07 08:08:16,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 411. [2021-11-07 08:08:16,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 409 states have (on average 1.354523227383863) internal successors, (554), 410 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:16,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 554 transitions. [2021-11-07 08:08:16,625 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 554 transitions. Word has length 85 [2021-11-07 08:08:16,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:08:16,625 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 554 transitions. [2021-11-07 08:08:16,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:16,626 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 554 transitions. [2021-11-07 08:08:16,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 08:08:16,626 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:08:16,626 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] [2021-11-07 08:08:16,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-11-07 08:08:16,626 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:08:16,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:08:16,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1464814942, now seen corresponding path program 1 times [2021-11-07 08:08:16,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:08:16,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345211735] [2021-11-07 08:08:16,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:08:16,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:08:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:08:17,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:08:17,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:08:17,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345211735] [2021-11-07 08:08:17,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345211735] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:08:17,412 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:08:17,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-11-07 08:08:17,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266400638] [2021-11-07 08:08:17,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-07 08:08:17,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:08:17,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-07 08:08:17,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2021-11-07 08:08:17,414 INFO L87 Difference]: Start difference. First operand 411 states and 554 transitions. Second operand has 23 states, 23 states have (on average 3.6956521739130435) internal successors, (85), 23 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:21,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:08:21,771 INFO L93 Difference]: Finished difference Result 1045 states and 1450 transitions. [2021-11-07 08:08:21,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 08:08:21,771 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.6956521739130435) internal successors, (85), 23 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-07 08:08:21,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:08:21,772 INFO L225 Difference]: With dead ends: 1045 [2021-11-07 08:08:21,772 INFO L226 Difference]: Without dead ends: 1037 [2021-11-07 08:08:21,772 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=357, Invalid=1535, Unknown=0, NotChecked=0, Total=1892 [2021-11-07 08:08:21,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2021-11-07 08:08:22,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 431. [2021-11-07 08:08:22,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 429 states have (on average 1.344988344988345) internal successors, (577), 430 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:22,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 577 transitions. [2021-11-07 08:08:22,233 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 577 transitions. Word has length 85 [2021-11-07 08:08:22,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:08:22,233 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 577 transitions. [2021-11-07 08:08:22,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.6956521739130435) internal successors, (85), 23 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:22,233 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 577 transitions. [2021-11-07 08:08:22,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 08:08:22,234 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:08:22,234 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] [2021-11-07 08:08:22,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-11-07 08:08:22,234 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:08:22,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:08:22,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1230916910, now seen corresponding path program 1 times [2021-11-07 08:08:22,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:08:22,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548655493] [2021-11-07 08:08:22,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:08:22,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:08:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:08:22,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:08:22,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:08:22,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548655493] [2021-11-07 08:08:22,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548655493] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:08:22,519 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:08:22,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-07 08:08:22,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533489303] [2021-11-07 08:08:22,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 08:08:22,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:08:22,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 08:08:22,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-11-07 08:08:22,520 INFO L87 Difference]: Start difference. First operand 431 states and 577 transitions. Second operand has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:24,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:08:24,552 INFO L93 Difference]: Finished difference Result 1014 states and 1426 transitions. [2021-11-07 08:08:24,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 08:08:24,552 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-07 08:08:24,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:08:24,553 INFO L225 Difference]: With dead ends: 1014 [2021-11-07 08:08:24,553 INFO L226 Difference]: Without dead ends: 985 [2021-11-07 08:08:24,553 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2021-11-07 08:08:24,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2021-11-07 08:08:25,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 417. [2021-11-07 08:08:25,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 415 states have (on average 1.3518072289156626) internal successors, (561), 416 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:25,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 561 transitions. [2021-11-07 08:08:25,008 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 561 transitions. Word has length 86 [2021-11-07 08:08:25,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:08:25,008 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 561 transitions. [2021-11-07 08:08:25,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:25,008 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 561 transitions. [2021-11-07 08:08:25,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 08:08:25,009 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:08:25,009 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] [2021-11-07 08:08:25,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-11-07 08:08:25,010 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:08:25,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:08:25,010 INFO L85 PathProgramCache]: Analyzing trace with hash 395941381, now seen corresponding path program 1 times [2021-11-07 08:08:25,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:08:25,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183509633] [2021-11-07 08:08:25,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:08:25,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:08:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:08:25,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:08:25,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:08:25,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183509633] [2021-11-07 08:08:25,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183509633] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:08:25,493 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:08:25,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-07 08:08:25,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889514066] [2021-11-07 08:08:25,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-07 08:08:25,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:08:25,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-07 08:08:25,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-11-07 08:08:25,494 INFO L87 Difference]: Start difference. First operand 417 states and 561 transitions. Second operand has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:28,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:08:28,353 INFO L93 Difference]: Finished difference Result 1021 states and 1430 transitions. [2021-11-07 08:08:28,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 08:08:28,354 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-07 08:08:28,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:08:28,355 INFO L225 Difference]: With dead ends: 1021 [2021-11-07 08:08:28,355 INFO L226 Difference]: Without dead ends: 1013 [2021-11-07 08:08:28,355 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=245, Invalid=877, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 08:08:28,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2021-11-07 08:08:28,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 417. [2021-11-07 08:08:28,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 415 states have (on average 1.3493975903614457) internal successors, (560), 416 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:28,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 560 transitions. [2021-11-07 08:08:28,810 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 560 transitions. Word has length 86 [2021-11-07 08:08:28,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:08:28,810 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 560 transitions. [2021-11-07 08:08:28,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:28,810 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 560 transitions. [2021-11-07 08:08:28,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 08:08:28,811 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:08:28,811 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] [2021-11-07 08:08:28,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-11-07 08:08:28,811 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:08:28,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:08:28,812 INFO L85 PathProgramCache]: Analyzing trace with hash 617954255, now seen corresponding path program 1 times [2021-11-07 08:08:28,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:08:28,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995907890] [2021-11-07 08:08:28,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:08:28,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:08:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:08:28,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:08:28,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:08:28,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995907890] [2021-11-07 08:08:28,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995907890] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:08:28,999 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:08:28,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-07 08:08:28,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506419889] [2021-11-07 08:08:28,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 08:08:29,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:08:29,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 08:08:29,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-07 08:08:29,000 INFO L87 Difference]: Start difference. First operand 417 states and 560 transitions. Second operand has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:31,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:08:31,220 INFO L93 Difference]: Finished difference Result 1231 states and 1767 transitions. [2021-11-07 08:08:31,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 08:08:31,221 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-11-07 08:08:31,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:08:31,222 INFO L225 Difference]: With dead ends: 1231 [2021-11-07 08:08:31,222 INFO L226 Difference]: Without dead ends: 1207 [2021-11-07 08:08:31,222 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2021-11-07 08:08:31,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2021-11-07 08:08:31,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 387. [2021-11-07 08:08:31,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 386 states have (on average 1.3678756476683938) internal successors, (528), 386 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:31,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 528 transitions. [2021-11-07 08:08:31,699 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 528 transitions. Word has length 87 [2021-11-07 08:08:31,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:08:31,699 INFO L470 AbstractCegarLoop]: Abstraction has 387 states and 528 transitions. [2021-11-07 08:08:31,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:31,700 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 528 transitions. [2021-11-07 08:08:31,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-07 08:08:31,700 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:08:31,700 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] [2021-11-07 08:08:31,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-11-07 08:08:31,701 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:08:31,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:08:31,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1569723451, now seen corresponding path program 1 times [2021-11-07 08:08:31,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:08:31,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167815579] [2021-11-07 08:08:31,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:08:31,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:08:31,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:08:31,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:08:31,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:08:31,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167815579] [2021-11-07 08:08:31,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167815579] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:08:31,764 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:08:31,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:08:31,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32270550] [2021-11-07 08:08:31,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:08:31,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:08:31,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:08:31,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:08:31,765 INFO L87 Difference]: Start difference. First operand 387 states and 528 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 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) [2021-11-07 08:08:32,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:08:32,670 INFO L93 Difference]: Finished difference Result 863 states and 1242 transitions. [2021-11-07 08:08:32,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:08:32,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 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 [2021-11-07 08:08:32,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:08:32,671 INFO L225 Difference]: With dead ends: 863 [2021-11-07 08:08:32,671 INFO L226 Difference]: Without dead ends: 617 [2021-11-07 08:08:32,672 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:08:32,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2021-11-07 08:08:33,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 615. [2021-11-07 08:08:33,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 614 states have (on average 1.4071661237785016) internal successors, (864), 614 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:33,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 864 transitions. [2021-11-07 08:08:33,540 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 864 transitions. Word has length 111 [2021-11-07 08:08:33,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:08:33,540 INFO L470 AbstractCegarLoop]: Abstraction has 615 states and 864 transitions. [2021-11-07 08:08:33,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 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) [2021-11-07 08:08:33,541 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 864 transitions. [2021-11-07 08:08:33,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 08:08:33,542 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:08:33,542 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] [2021-11-07 08:08:33,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-11-07 08:08:33,542 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:08:33,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:08:33,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1004312690, now seen corresponding path program 1 times [2021-11-07 08:08:33,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:08:33,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660209763] [2021-11-07 08:08:33,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:08:33,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:08:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:08:33,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:08:33,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:08:33,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660209763] [2021-11-07 08:08:33,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660209763] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:08:33,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:08:33,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 08:08:33,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154194816] [2021-11-07 08:08:33,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 08:08:33,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:08:33,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:08:33,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:08:33,591 INFO L87 Difference]: Start difference. First operand 615 states and 864 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 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) [2021-11-07 08:08:37,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:08:37,223 INFO L93 Difference]: Finished difference Result 2511 states and 3668 transitions. [2021-11-07 08:08:37,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 08:08:37,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 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 [2021-11-07 08:08:37,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:08:37,226 INFO L225 Difference]: With dead ends: 2511 [2021-11-07 08:08:37,226 INFO L226 Difference]: Without dead ends: 2037 [2021-11-07 08:08:37,226 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:08:37,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2037 states. [2021-11-07 08:08:38,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2037 to 1127. [2021-11-07 08:08:38,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1127 states, 1126 states have (on average 1.4387211367673178) internal successors, (1620), 1126 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:38,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1620 transitions. [2021-11-07 08:08:38,973 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1620 transitions. Word has length 113 [2021-11-07 08:08:38,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:08:38,973 INFO L470 AbstractCegarLoop]: Abstraction has 1127 states and 1620 transitions. [2021-11-07 08:08:38,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 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) [2021-11-07 08:08:38,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1620 transitions. [2021-11-07 08:08:38,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 08:08:38,974 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:08:38,975 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, 1, 1, 1] [2021-11-07 08:08:38,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-11-07 08:08:38,975 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:08:38,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:08:38,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1515443221, now seen corresponding path program 1 times [2021-11-07 08:08:38,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:08:38,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150088896] [2021-11-07 08:08:38,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:08:38,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:08:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:08:39,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:08:39,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:08:39,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150088896] [2021-11-07 08:08:39,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150088896] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:08:39,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:08:39,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:08:39,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430383481] [2021-11-07 08:08:39,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:08:39,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:08:39,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:08:39,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:08:39,010 INFO L87 Difference]: Start difference. First operand 1127 states and 1620 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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) [2021-11-07 08:08:42,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:08:42,657 INFO L93 Difference]: Finished difference Result 3019 states and 4406 transitions. [2021-11-07 08:08:42,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:08:42,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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 [2021-11-07 08:08:42,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:08:42,660 INFO L225 Difference]: With dead ends: 3019 [2021-11-07 08:08:42,660 INFO L226 Difference]: Without dead ends: 2033 [2021-11-07 08:08:42,661 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:08:42,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2033 states. [2021-11-07 08:08:46,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2033 to 2015. [2021-11-07 08:08:46,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2015 states, 2014 states have (on average 1.435948361469712) internal successors, (2892), 2014 states have internal predecessors, (2892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:46,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 2892 transitions. [2021-11-07 08:08:46,069 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 2892 transitions. Word has length 113 [2021-11-07 08:08:46,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:08:46,070 INFO L470 AbstractCegarLoop]: Abstraction has 2015 states and 2892 transitions. [2021-11-07 08:08:46,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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) [2021-11-07 08:08:46,070 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 2892 transitions. [2021-11-07 08:08:46,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 08:08:46,071 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:08:46,072 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] [2021-11-07 08:08:46,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-11-07 08:08:46,072 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:08:46,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:08:46,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1448949709, now seen corresponding path program 1 times [2021-11-07 08:08:46,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:08:46,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136122276] [2021-11-07 08:08:46,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:08:46,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:08:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:08:46,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:08:46,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:08:46,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136122276] [2021-11-07 08:08:46,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136122276] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:08:46,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:08:46,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:08:46,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636495605] [2021-11-07 08:08:46,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:08:46,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:08:46,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:08:46,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:08:46,114 INFO L87 Difference]: Start difference. First operand 2015 states and 2892 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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) [2021-11-07 08:08:51,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:08:51,328 INFO L93 Difference]: Finished difference Result 4843 states and 7022 transitions. [2021-11-07 08:08:51,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:08:51,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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 [2021-11-07 08:08:51,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:08:51,331 INFO L225 Difference]: With dead ends: 4843 [2021-11-07 08:08:51,331 INFO L226 Difference]: Without dead ends: 2969 [2021-11-07 08:08:51,333 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:08:51,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2021-11-07 08:08:56,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 2967. [2021-11-07 08:08:56,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2967 states, 2966 states have (on average 1.4389750505731624) internal successors, (4268), 2966 states have internal predecessors, (4268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:08:56,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 4268 transitions. [2021-11-07 08:08:56,525 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 4268 transitions. Word has length 113 [2021-11-07 08:08:56,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:08:56,525 INFO L470 AbstractCegarLoop]: Abstraction has 2967 states and 4268 transitions. [2021-11-07 08:08:56,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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) [2021-11-07 08:08:56,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 4268 transitions. [2021-11-07 08:08:56,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 08:08:56,527 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:08:56,527 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] [2021-11-07 08:08:56,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-11-07 08:08:56,527 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:08:56,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:08:56,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1415505294, now seen corresponding path program 1 times [2021-11-07 08:08:56,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:08:56,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734734005] [2021-11-07 08:08:56,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:08:56,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:08:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:08:56,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:08:56,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:08:56,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734734005] [2021-11-07 08:08:56,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734734005] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:08:56,566 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:08:56,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 08:08:56,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834679324] [2021-11-07 08:08:56,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 08:08:56,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:08:56,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:08:56,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:08:56,567 INFO L87 Difference]: Start difference. First operand 2967 states and 4268 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 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) [2021-11-07 08:09:13,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:09:13,504 INFO L93 Difference]: Finished difference Result 12311 states and 17784 transitions. [2021-11-07 08:09:13,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 08:09:13,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 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 [2021-11-07 08:09:13,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:09:13,514 INFO L225 Difference]: With dead ends: 12311 [2021-11-07 08:09:13,515 INFO L226 Difference]: Without dead ends: 9485 [2021-11-07 08:09:13,518 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:09:13,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9485 states. [2021-11-07 08:09:23,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9485 to 5983. [2021-11-07 08:09:23,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5983 states, 5982 states have (on average 1.4329655633567369) internal successors, (8572), 5982 states have internal predecessors, (8572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:09:23,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5983 states to 5983 states and 8572 transitions. [2021-11-07 08:09:23,820 INFO L78 Accepts]: Start accepts. Automaton has 5983 states and 8572 transitions. Word has length 113 [2021-11-07 08:09:23,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:09:23,821 INFO L470 AbstractCegarLoop]: Abstraction has 5983 states and 8572 transitions. [2021-11-07 08:09:23,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 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) [2021-11-07 08:09:23,821 INFO L276 IsEmpty]: Start isEmpty. Operand 5983 states and 8572 transitions. [2021-11-07 08:09:23,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 08:09:23,823 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:09:23,823 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] [2021-11-07 08:09:23,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-11-07 08:09:23,823 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:09:23,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:09:23,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1051419534, now seen corresponding path program 1 times [2021-11-07 08:09:23,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:09:23,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730264133] [2021-11-07 08:09:23,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:09:23,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:09:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:09:23,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:09:23,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:09:23,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730264133] [2021-11-07 08:09:23,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730264133] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:09:23,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:09:23,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 08:09:23,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869698685] [2021-11-07 08:09:23,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 08:09:23,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:09:23,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:09:23,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:09:23,871 INFO L87 Difference]: Start difference. First operand 5983 states and 8572 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 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) [2021-11-07 08:09:58,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:09:58,915 INFO L93 Difference]: Finished difference Result 26535 states and 37952 transitions. [2021-11-07 08:09:58,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 08:09:58,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 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 [2021-11-07 08:09:58,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:09:58,938 INFO L225 Difference]: With dead ends: 26535 [2021-11-07 08:09:58,938 INFO L226 Difference]: Without dead ends: 20693 [2021-11-07 08:09:58,945 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:09:58,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20693 states. [2021-11-07 08:10:20,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20693 to 12303. [2021-11-07 08:10:20,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12303 states, 12302 states have (on average 1.42773532758901) internal successors, (17564), 12302 states have internal predecessors, (17564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:10:20,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12303 states to 12303 states and 17564 transitions. [2021-11-07 08:10:20,027 INFO L78 Accepts]: Start accepts. Automaton has 12303 states and 17564 transitions. Word has length 113 [2021-11-07 08:10:20,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:10:20,028 INFO L470 AbstractCegarLoop]: Abstraction has 12303 states and 17564 transitions. [2021-11-07 08:10:20,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 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) [2021-11-07 08:10:20,028 INFO L276 IsEmpty]: Start isEmpty. Operand 12303 states and 17564 transitions. [2021-11-07 08:10:20,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 08:10:20,032 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:10:20,032 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] [2021-11-07 08:10:20,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-11-07 08:10:20,032 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:10:20,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:10:20,032 INFO L85 PathProgramCache]: Analyzing trace with hash -310960526, now seen corresponding path program 1 times [2021-11-07 08:10:20,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:10:20,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176497977] [2021-11-07 08:10:20,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:10:20,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:10:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:10:20,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:10:20,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:10:20,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176497977] [2021-11-07 08:10:20,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176497977] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:10:20,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:10:20,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 08:10:20,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350656261] [2021-11-07 08:10:20,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 08:10:20,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:10:20,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:10:20,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:10:20,071 INFO L87 Difference]: Start difference. First operand 12303 states and 17564 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 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) [2021-11-07 08:11:18,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:11:18,355 INFO L93 Difference]: Finished difference Result 46591 states and 66596 transitions. [2021-11-07 08:11:18,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 08:11:18,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 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 [2021-11-07 08:11:18,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:11:18,398 INFO L225 Difference]: With dead ends: 46591 [2021-11-07 08:11:18,398 INFO L226 Difference]: Without dead ends: 34429 [2021-11-07 08:11:18,410 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:11:18,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34429 states. [2021-11-07 08:11:49,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34429 to 19791. [2021-11-07 08:11:49,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19791 states, 19790 states have (on average 1.41788782213239) internal successors, (28060), 19790 states have internal predecessors, (28060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:11:49,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19791 states to 19791 states and 28060 transitions. [2021-11-07 08:11:49,211 INFO L78 Accepts]: Start accepts. Automaton has 19791 states and 28060 transitions. Word has length 113 [2021-11-07 08:11:49,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:11:49,211 INFO L470 AbstractCegarLoop]: Abstraction has 19791 states and 28060 transitions. [2021-11-07 08:11:49,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 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) [2021-11-07 08:11:49,211 INFO L276 IsEmpty]: Start isEmpty. Operand 19791 states and 28060 transitions. [2021-11-07 08:11:49,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-07 08:11:49,214 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:11:49,215 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] [2021-11-07 08:11:49,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-11-07 08:11:49,215 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:11:49,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:11:49,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1879024262, now seen corresponding path program 1 times [2021-11-07 08:11:49,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:11:49,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201449696] [2021-11-07 08:11:49,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:11:49,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:11:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:11:49,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:11:49,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:11:49,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201449696] [2021-11-07 08:11:49,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201449696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:11:49,253 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:11:49,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:11:49,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699642246] [2021-11-07 08:11:49,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:11:49,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:11:49,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:11:49,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:11:49,253 INFO L87 Difference]: Start difference. First operand 19791 states and 28060 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 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) [2021-11-07 08:12:19,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:12:19,206 INFO L93 Difference]: Finished difference Result 38307 states and 54254 transitions. [2021-11-07 08:12:19,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:12:19,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 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 [2021-11-07 08:12:19,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:12:19,228 INFO L225 Difference]: With dead ends: 38307 [2021-11-07 08:12:19,228 INFO L226 Difference]: Without dead ends: 18657 [2021-11-07 08:12:19,243 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:12:19,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18657 states. [2021-11-07 08:12:44,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18657 to 15279. [2021-11-07 08:12:44,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15279 states, 15278 states have (on average 1.397303311951826) internal successors, (21348), 15278 states have internal predecessors, (21348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:12:44,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15279 states to 15279 states and 21348 transitions. [2021-11-07 08:12:44,388 INFO L78 Accepts]: Start accepts. Automaton has 15279 states and 21348 transitions. Word has length 114 [2021-11-07 08:12:44,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:12:44,388 INFO L470 AbstractCegarLoop]: Abstraction has 15279 states and 21348 transitions. [2021-11-07 08:12:44,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 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) [2021-11-07 08:12:44,388 INFO L276 IsEmpty]: Start isEmpty. Operand 15279 states and 21348 transitions. [2021-11-07 08:12:44,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-07 08:12:44,390 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:12:44,390 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] [2021-11-07 08:12:44,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-11-07 08:12:44,390 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:12:44,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:12:44,391 INFO L85 PathProgramCache]: Analyzing trace with hash -658426381, now seen corresponding path program 1 times [2021-11-07 08:12:44,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:12:44,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136370734] [2021-11-07 08:12:44,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:12:44,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:12:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:12:44,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:12:44,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:12:44,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136370734] [2021-11-07 08:12:44,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136370734] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:12:44,424 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:12:44,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:12:44,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005766731] [2021-11-07 08:12:44,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:12:44,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:12:44,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:12:44,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:12:44,425 INFO L87 Difference]: Start difference. First operand 15279 states and 21348 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:13:08,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:13:08,130 INFO L93 Difference]: Finished difference Result 29507 states and 41150 transitions. [2021-11-07 08:13:08,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:13:08,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have 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 [2021-11-07 08:13:08,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:13:08,147 INFO L225 Difference]: With dead ends: 29507 [2021-11-07 08:13:08,147 INFO L226 Difference]: Without dead ends: 14369 [2021-11-07 08:13:08,156 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:13:08,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14369 states. [2021-11-07 08:13:31,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14369 to 14007. [2021-11-07 08:13:31,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14007 states, 14006 states have (on average 1.3828359274596602) internal successors, (19368), 14006 states have internal predecessors, (19368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:13:31,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14007 states to 14007 states and 19368 transitions. [2021-11-07 08:13:31,440 INFO L78 Accepts]: Start accepts. Automaton has 14007 states and 19368 transitions. Word has length 115 [2021-11-07 08:13:31,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:13:31,441 INFO L470 AbstractCegarLoop]: Abstraction has 14007 states and 19368 transitions. [2021-11-07 08:13:31,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:13:31,441 INFO L276 IsEmpty]: Start isEmpty. Operand 14007 states and 19368 transitions. [2021-11-07 08:13:31,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-07 08:13:31,443 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:13:31,443 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] [2021-11-07 08:13:31,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-11-07 08:13:31,443 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:13:31,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:13:31,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1836152402, now seen corresponding path program 1 times [2021-11-07 08:13:31,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:13:31,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72569118] [2021-11-07 08:13:31,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:13:31,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:13:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:13:31,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:13:31,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:13:31,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72569118] [2021-11-07 08:13:31,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72569118] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:13:31,483 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:13:31,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:13:31,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143650014] [2021-11-07 08:13:31,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:13:31,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:13:31,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:13:31,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:13:31,484 INFO L87 Difference]: Start difference. First operand 14007 states and 19368 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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) [2021-11-07 08:13:53,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:13:53,890 INFO L93 Difference]: Finished difference Result 26975 states and 37202 transitions. [2021-11-07 08:13:53,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:13:53,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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 [2021-11-07 08:13:53,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:13:53,912 INFO L225 Difference]: With dead ends: 26975 [2021-11-07 08:13:53,912 INFO L226 Difference]: Without dead ends: 13109 [2021-11-07 08:13:53,922 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:13:53,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13109 states. [2021-11-07 08:14:16,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13109 to 12807. [2021-11-07 08:14:16,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12807 states, 12806 states have (on average 1.3671716382945494) internal successors, (17508), 12806 states have internal predecessors, (17508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:14:16,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12807 states to 12807 states and 17508 transitions. [2021-11-07 08:14:16,426 INFO L78 Accepts]: Start accepts. Automaton has 12807 states and 17508 transitions. Word has length 116 [2021-11-07 08:14:16,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:14:16,427 INFO L470 AbstractCegarLoop]: Abstraction has 12807 states and 17508 transitions. [2021-11-07 08:14:16,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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) [2021-11-07 08:14:16,427 INFO L276 IsEmpty]: Start isEmpty. Operand 12807 states and 17508 transitions. [2021-11-07 08:14:16,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-07 08:14:16,429 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:14:16,429 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, 1] [2021-11-07 08:14:16,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-11-07 08:14:16,429 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 08:14:16,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:14:16,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1618075135, now seen corresponding path program 1 times [2021-11-07 08:14:16,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:14:16,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821513637] [2021-11-07 08:14:16,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:14:16,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:14:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:14:16,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:14:16,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:14:16,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821513637] [2021-11-07 08:14:16,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821513637] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:14:16,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:14:16,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:14:16,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425744225] [2021-11-07 08:14:16,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:14:16,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:14:16,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:14:16,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:14:16,474 INFO L87 Difference]: Start difference. First operand 12807 states and 17508 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)