./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN --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 297d4f7e6fe1324d357f4812a6556f1cd58caa692e4601779e6f52e2ab17fbf7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:47:36,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:47:36,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:47:36,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:47:36,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:47:36,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:47:36,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:47:36,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:47:36,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:47:36,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:47:36,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:47:36,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:47:36,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:47:36,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:47:36,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:47:36,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:47:36,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:47:36,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:47:36,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:47:36,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:47:36,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:47:36,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:47:36,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:47:36,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:47:36,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:47:36,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:47:36,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:47:36,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:47:36,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:47:36,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:47:36,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:47:36,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:47:36,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:47:36,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:47:36,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:47:36,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:47:36,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:47:36,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:47:36,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:47:36,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:47:36,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:47:36,920 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:47:36,951 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:47:36,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:47:36,963 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:47:36,963 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:47:36,964 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:47:36,964 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:47:36,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:47:36,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:47:36,965 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:47:36,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:47:36,966 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:47:36,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:47:36,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:47:36,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:47:36,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:47:36,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:47:36,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:47:36,968 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:47:36,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:47:36,968 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:47:36,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:47:36,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:47:36,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:47:36,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:47:36,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:47:36,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:47:36,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:47:36,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:47:36,971 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:47:36,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:47:36,971 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:47:36,972 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:47:36,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:47:36,972 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_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 297d4f7e6fe1324d357f4812a6556f1cd58caa692e4601779e6f52e2ab17fbf7 [2022-11-20 11:47:37,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:47:37,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:47:37,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:47:37,320 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:47:37,321 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:47:37,322 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-11-20 11:47:40,424 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:47:40,745 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:47:40,746 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-11-20 11:47:40,777 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/data/eece45c95/156ddd22323646d69e6d61f6d8e0cf6a/FLAG5058fe0a3 [2022-11-20 11:47:40,793 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/data/eece45c95/156ddd22323646d69e6d61f6d8e0cf6a [2022-11-20 11:47:40,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:47:40,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:47:40,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:47:40,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:47:40,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:47:40,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:47:40" (1/1) ... [2022-11-20 11:47:40,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@315a7ab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:40, skipping insertion in model container [2022-11-20 11:47:40,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:47:40" (1/1) ... [2022-11-20 11:47:40,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:47:40,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:47:41,279 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[16948,16961] [2022-11-20 11:47:41,320 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[23372,23385] [2022-11-20 11:47:41,353 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26559,26572] [2022-11-20 11:47:41,382 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[29535,29548] [2022-11-20 11:47:41,416 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33298,33311] [2022-11-20 11:47:41,456 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[36350,36363] [2022-11-20 11:47:41,477 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[39535,39548] [2022-11-20 11:47:41,504 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42506,42519] [2022-11-20 11:47:41,518 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[45890,45903] [2022-11-20 11:47:41,530 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[48876,48889] [2022-11-20 11:47:41,542 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[52025,52038] [2022-11-20 11:47:41,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:47:41,588 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:47:41,679 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[16948,16961] [2022-11-20 11:47:41,713 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[23372,23385] [2022-11-20 11:47:41,731 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26559,26572] [2022-11-20 11:47:41,746 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[29535,29548] [2022-11-20 11:47:41,764 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33298,33311] [2022-11-20 11:47:41,782 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[36350,36363] [2022-11-20 11:47:41,799 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[39535,39548] [2022-11-20 11:47:41,812 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42506,42519] [2022-11-20 11:47:41,833 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[45890,45903] [2022-11-20 11:47:41,856 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[48876,48889] [2022-11-20 11:47:41,872 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[52025,52038] [2022-11-20 11:47:41,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:47:41,930 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:47:41,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:41 WrapperNode [2022-11-20 11:47:41,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:47:41,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:47:41,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:47:41,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:47:41,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:41" (1/1) ... [2022-11-20 11:47:42,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:41" (1/1) ... [2022-11-20 11:47:42,099 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2580 [2022-11-20 11:47:42,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:47:42,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:47:42,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:47:42,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:47:42,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:41" (1/1) ... [2022-11-20 11:47:42,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:41" (1/1) ... [2022-11-20 11:47:42,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:41" (1/1) ... [2022-11-20 11:47:42,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:41" (1/1) ... [2022-11-20 11:47:42,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:41" (1/1) ... [2022-11-20 11:47:42,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:41" (1/1) ... [2022-11-20 11:47:42,211 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:41" (1/1) ... [2022-11-20 11:47:42,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:41" (1/1) ... [2022-11-20 11:47:42,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:47:42,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:47:42,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:47:42,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:47:42,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:41" (1/1) ... [2022-11-20 11:47:42,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:47:42,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:47:42,272 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:47:42,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:47:42,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:47:42,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:47:42,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:47:42,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:47:42,600 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:47:42,602 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:47:44,262 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:47:44,274 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:47:44,274 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:47:44,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:47:44 BoogieIcfgContainer [2022-11-20 11:47:44,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:47:44,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:47:44,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:47:44,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:47:44,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:47:40" (1/3) ... [2022-11-20 11:47:44,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4f5427 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:47:44, skipping insertion in model container [2022-11-20 11:47:44,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:41" (2/3) ... [2022-11-20 11:47:44,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4f5427 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:47:44, skipping insertion in model container [2022-11-20 11:47:44,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:47:44" (3/3) ... [2022-11-20 11:47:44,286 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-11-20 11:47:44,305 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:47:44,306 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-20 11:47:44,368 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:47:44,375 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@28347113, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:47:44,375 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-20 11:47:44,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 537 states, 525 states have (on average 1.8304761904761904) internal successors, (961), 536 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:44,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 11:47:44,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:47:44,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:47:44,409 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:47:44,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:44,415 INFO L85 PathProgramCache]: Analyzing trace with hash 702631990, now seen corresponding path program 1 times [2022-11-20 11:47:44,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:44,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244935647] [2022-11-20 11:47:44,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:44,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:44,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:47:44,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:44,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244935647] [2022-11-20 11:47:44,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244935647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:44,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:44,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:47:44,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931329508] [2022-11-20 11:47:44,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:44,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:47:44,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:45,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:47:45,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:47:45,045 INFO L87 Difference]: Start difference. First operand has 537 states, 525 states have (on average 1.8304761904761904) internal successors, (961), 536 states have internal predecessors, (961), 0 states have call successors, (0), 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 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:45,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:47:45,807 INFO L93 Difference]: Finished difference Result 740 states and 1288 transitions. [2022-11-20 11:47:45,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:47:45,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-11-20 11:47:45,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:47:45,825 INFO L225 Difference]: With dead ends: 740 [2022-11-20 11:47:45,826 INFO L226 Difference]: Without dead ends: 470 [2022-11-20 11:47:45,834 INFO L412 NwaCegarLoop]: 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 [2022-11-20 11:47:45,837 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 2334 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2334 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:47:45,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2334 Valid, 518 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:47:45,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-11-20 11:47:45,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2022-11-20 11:47:45,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 459 states have (on average 1.2962962962962963) internal successors, (595), 469 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:45,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 595 transitions. [2022-11-20 11:47:45,958 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 595 transitions. Word has length 59 [2022-11-20 11:47:45,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:47:45,958 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 595 transitions. [2022-11-20 11:47:45,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:45,962 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 595 transitions. [2022-11-20 11:47:45,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 11:47:45,967 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:47:45,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:47:45,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:47:45,972 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:47:45,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:45,973 INFO L85 PathProgramCache]: Analyzing trace with hash 728409025, now seen corresponding path program 1 times [2022-11-20 11:47:45,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:45,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093755957] [2022-11-20 11:47:45,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:45,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:46,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:47:46,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:46,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093755957] [2022-11-20 11:47:46,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093755957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:46,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:46,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:47:46,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864435191] [2022-11-20 11:47:46,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:46,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:47:46,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:46,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:47:46,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:47:46,258 INFO L87 Difference]: Start difference. First operand 470 states and 595 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:46,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:47:46,625 INFO L93 Difference]: Finished difference Result 600 states and 761 transitions. [2022-11-20 11:47:46,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:47:46,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-11-20 11:47:46,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:47:46,633 INFO L225 Difference]: With dead ends: 600 [2022-11-20 11:47:46,633 INFO L226 Difference]: Without dead ends: 356 [2022-11-20 11:47:46,637 INFO L412 NwaCegarLoop]: 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 [2022-11-20 11:47:46,641 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1305 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:47:46,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1305 Valid, 243 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:47:46,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-11-20 11:47:46,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2022-11-20 11:47:46,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 345 states have (on average 1.3101449275362318) internal successors, (452), 355 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:46,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 452 transitions. [2022-11-20 11:47:46,678 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 452 transitions. Word has length 59 [2022-11-20 11:47:46,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:47:46,678 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 452 transitions. [2022-11-20 11:47:46,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:46,679 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 452 transitions. [2022-11-20 11:47:46,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 11:47:46,680 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:47:46,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:47:46,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:47:46,681 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:47:46,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:46,681 INFO L85 PathProgramCache]: Analyzing trace with hash -466198780, now seen corresponding path program 1 times [2022-11-20 11:47:46,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:46,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699359516] [2022-11-20 11:47:46,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:46,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:46,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:46,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:47:46,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:46,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699359516] [2022-11-20 11:47:46,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699359516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:46,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:46,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:47:46,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59738039] [2022-11-20 11:47:46,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:46,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:47:46,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:46,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:47:46,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:47:46,804 INFO L87 Difference]: Start difference. First operand 356 states and 452 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:47,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:47:47,237 INFO L93 Difference]: Finished difference Result 668 states and 866 transitions. [2022-11-20 11:47:47,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:47:47,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-11-20 11:47:47,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:47:47,240 INFO L225 Difference]: With dead ends: 668 [2022-11-20 11:47:47,240 INFO L226 Difference]: Without dead ends: 474 [2022-11-20 11:47:47,241 INFO L412 NwaCegarLoop]: 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 [2022-11-20 11:47:47,245 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1586 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:47:47,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1586 Valid, 339 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:47:47,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-11-20 11:47:47,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 420. [2022-11-20 11:47:47,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 409 states have (on average 1.371638141809291) internal successors, (561), 419 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) [2022-11-20 11:47:47,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 561 transitions. [2022-11-20 11:47:47,293 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 561 transitions. Word has length 59 [2022-11-20 11:47:47,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:47:47,295 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 561 transitions. [2022-11-20 11:47:47,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:47,296 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 561 transitions. [2022-11-20 11:47:47,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-20 11:47:47,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:47:47,298 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:47:47,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:47:47,298 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:47:47,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:47,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1447561490, now seen corresponding path program 1 times [2022-11-20 11:47:47,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:47,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846286203] [2022-11-20 11:47:47,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:47,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:47,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:47:47,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:47,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846286203] [2022-11-20 11:47:47,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846286203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:47,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:47,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:47:47,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412017034] [2022-11-20 11:47:47,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:47,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:47:47,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:47,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:47:47,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:47:47,473 INFO L87 Difference]: Start difference. First operand 420 states and 561 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:47,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:47:47,693 INFO L93 Difference]: Finished difference Result 576 states and 768 transitions. [2022-11-20 11:47:47,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:47:47,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-11-20 11:47:47,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:47:47,697 INFO L225 Difference]: With dead ends: 576 [2022-11-20 11:47:47,697 INFO L226 Difference]: Without dead ends: 337 [2022-11-20 11:47:47,698 INFO L412 NwaCegarLoop]: 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 [2022-11-20 11:47:47,700 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 868 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:47:47,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 195 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:47:47,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-11-20 11:47:47,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2022-11-20 11:47:47,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3742331288343559) internal successors, (448), 336 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:47,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 448 transitions. [2022-11-20 11:47:47,735 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 448 transitions. Word has length 60 [2022-11-20 11:47:47,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:47:47,735 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 448 transitions. [2022-11-20 11:47:47,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:47,736 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 448 transitions. [2022-11-20 11:47:47,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-20 11:47:47,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:47:47,739 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:47:47,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:47:47,739 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:47:47,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:47,740 INFO L85 PathProgramCache]: Analyzing trace with hash -944801897, now seen corresponding path program 1 times [2022-11-20 11:47:47,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:47,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733909085] [2022-11-20 11:47:47,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:47,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:48,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:47:48,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:48,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733909085] [2022-11-20 11:47:48,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733909085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:48,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:48,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:47:48,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823280107] [2022-11-20 11:47:48,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:48,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:47:48,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:48,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:47:48,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:47:48,172 INFO L87 Difference]: Start difference. First operand 337 states and 448 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:48,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:47:48,934 INFO L93 Difference]: Finished difference Result 749 states and 1031 transitions. [2022-11-20 11:47:48,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:47:48,934 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-11-20 11:47:48,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:47:48,939 INFO L225 Difference]: With dead ends: 749 [2022-11-20 11:47:48,939 INFO L226 Difference]: Without dead ends: 744 [2022-11-20 11:47:48,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:47:48,944 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 1209 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:47:48,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1209 Valid, 921 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:47:48,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2022-11-20 11:47:49,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 337. [2022-11-20 11:47:49,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3711656441717792) internal successors, (447), 336 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:49,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 447 transitions. [2022-11-20 11:47:49,032 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 447 transitions. Word has length 61 [2022-11-20 11:47:49,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:47:49,034 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 447 transitions. [2022-11-20 11:47:49,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:49,034 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 447 transitions. [2022-11-20 11:47:49,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-20 11:47:49,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:47:49,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:47:49,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:47:49,036 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:47:49,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:49,037 INFO L85 PathProgramCache]: Analyzing trace with hash 448084895, now seen corresponding path program 1 times [2022-11-20 11:47:49,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:49,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294928207] [2022-11-20 11:47:49,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:49,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:49,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:47:49,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:49,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294928207] [2022-11-20 11:47:49,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294928207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:49,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:49,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:47:49,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778006493] [2022-11-20 11:47:49,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:49,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:47:49,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:49,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:47:49,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:47:49,384 INFO L87 Difference]: Start difference. First operand 337 states and 447 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:50,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:47:50,249 INFO L93 Difference]: Finished difference Result 778 states and 1072 transitions. [2022-11-20 11:47:50,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:47:50,249 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-11-20 11:47:50,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:47:50,252 INFO L225 Difference]: With dead ends: 778 [2022-11-20 11:47:50,252 INFO L226 Difference]: Without dead ends: 638 [2022-11-20 11:47:50,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:47:50,256 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 2078 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2078 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:47:50,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2078 Valid, 871 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:47:50,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-11-20 11:47:50,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 337. [2022-11-20 11:47:50,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3680981595092025) internal successors, (446), 336 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:50,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 446 transitions. [2022-11-20 11:47:50,307 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 446 transitions. Word has length 61 [2022-11-20 11:47:50,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:47:50,308 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 446 transitions. [2022-11-20 11:47:50,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:50,308 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 446 transitions. [2022-11-20 11:47:50,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-20 11:47:50,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:47:50,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:47:50,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:47:50,312 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:47:50,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:50,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1014019097, now seen corresponding path program 1 times [2022-11-20 11:47:50,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:50,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455634926] [2022-11-20 11:47:50,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:50,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:50,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:47:50,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:50,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455634926] [2022-11-20 11:47:50,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455634926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:50,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:50,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:47:50,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396366320] [2022-11-20 11:47:50,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:50,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:47:50,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:50,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:47:50,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:47:50,684 INFO L87 Difference]: Start difference. First operand 337 states and 446 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:51,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:47:51,722 INFO L93 Difference]: Finished difference Result 773 states and 1070 transitions. [2022-11-20 11:47:51,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:47:51,723 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-11-20 11:47:51,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:47:51,728 INFO L225 Difference]: With dead ends: 773 [2022-11-20 11:47:51,728 INFO L226 Difference]: Without dead ends: 756 [2022-11-20 11:47:51,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2022-11-20 11:47:51,730 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 1087 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:47:51,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 1262 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 11:47:51,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2022-11-20 11:47:51,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 337. [2022-11-20 11:47:51,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.361963190184049) internal successors, (444), 336 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:51,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 444 transitions. [2022-11-20 11:47:51,787 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 444 transitions. Word has length 61 [2022-11-20 11:47:51,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:47:51,788 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 444 transitions. [2022-11-20 11:47:51,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:51,789 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 444 transitions. [2022-11-20 11:47:51,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-20 11:47:51,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:47:51,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:47:51,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:47:51,791 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:47:51,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:51,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1327873536, now seen corresponding path program 1 times [2022-11-20 11:47:51,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:51,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352716328] [2022-11-20 11:47:51,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:51,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:52,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:47:52,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:52,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352716328] [2022-11-20 11:47:52,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352716328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:52,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:52,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:47:52,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26504682] [2022-11-20 11:47:52,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:52,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:47:52,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:52,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:47:52,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:47:52,243 INFO L87 Difference]: Start difference. First operand 337 states and 444 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:53,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:47:53,022 INFO L93 Difference]: Finished difference Result 741 states and 1018 transitions. [2022-11-20 11:47:53,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:47:53,023 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-11-20 11:47:53,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:47:53,028 INFO L225 Difference]: With dead ends: 741 [2022-11-20 11:47:53,028 INFO L226 Difference]: Without dead ends: 736 [2022-11-20 11:47:53,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2022-11-20 11:47:53,031 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 1090 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:47:53,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 1165 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:47:53,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-11-20 11:47:53,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 337. [2022-11-20 11:47:53,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3558282208588956) internal successors, (442), 336 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:53,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 442 transitions. [2022-11-20 11:47:53,120 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 442 transitions. Word has length 61 [2022-11-20 11:47:53,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:47:53,120 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 442 transitions. [2022-11-20 11:47:53,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:53,120 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 442 transitions. [2022-11-20 11:47:53,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-20 11:47:53,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:47:53,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:47:53,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:47:53,124 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:47:53,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:53,125 INFO L85 PathProgramCache]: Analyzing trace with hash -798136398, now seen corresponding path program 1 times [2022-11-20 11:47:53,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:53,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881131995] [2022-11-20 11:47:53,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:53,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:53,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:47:53,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:53,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881131995] [2022-11-20 11:47:53,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881131995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:53,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:53,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:47:53,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634714710] [2022-11-20 11:47:53,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:53,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:47:53,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:53,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:47:53,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:47:53,517 INFO L87 Difference]: Start difference. First operand 337 states and 442 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:54,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:47:54,371 INFO L93 Difference]: Finished difference Result 800 states and 1096 transitions. [2022-11-20 11:47:54,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:47:54,372 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-11-20 11:47:54,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:47:54,375 INFO L225 Difference]: With dead ends: 800 [2022-11-20 11:47:54,375 INFO L226 Difference]: Without dead ends: 630 [2022-11-20 11:47:54,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2022-11-20 11:47:54,378 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 1787 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1787 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:47:54,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1787 Valid, 1260 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:47:54,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-11-20 11:47:54,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 337. [2022-11-20 11:47:54,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3496932515337423) internal successors, (440), 336 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:54,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 440 transitions. [2022-11-20 11:47:54,433 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 440 transitions. Word has length 61 [2022-11-20 11:47:54,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:47:54,433 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 440 transitions. [2022-11-20 11:47:54,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:54,433 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 440 transitions. [2022-11-20 11:47:54,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-20 11:47:54,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:47:54,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:47:54,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:47:54,438 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:47:54,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:54,439 INFO L85 PathProgramCache]: Analyzing trace with hash 556986468, now seen corresponding path program 1 times [2022-11-20 11:47:54,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:54,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634834683] [2022-11-20 11:47:54,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:54,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:54,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:47:54,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:54,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634834683] [2022-11-20 11:47:54,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634834683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:54,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:54,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:47:54,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260272142] [2022-11-20 11:47:54,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:54,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:47:54,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:54,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:47:54,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:47:54,713 INFO L87 Difference]: Start difference. First operand 337 states and 440 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:55,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:47:55,614 INFO L93 Difference]: Finished difference Result 887 states and 1233 transitions. [2022-11-20 11:47:55,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:47:55,615 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-11-20 11:47:55,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:47:55,618 INFO L225 Difference]: With dead ends: 887 [2022-11-20 11:47:55,618 INFO L226 Difference]: Without dead ends: 764 [2022-11-20 11:47:55,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:47:55,619 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 923 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:47:55,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 1219 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:47:55,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2022-11-20 11:47:55,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 337. [2022-11-20 11:47:55,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3466257668711656) internal successors, (439), 336 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:55,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 439 transitions. [2022-11-20 11:47:55,677 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 439 transitions. Word has length 63 [2022-11-20 11:47:55,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:47:55,678 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 439 transitions. [2022-11-20 11:47:55,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:55,678 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 439 transitions. [2022-11-20 11:47:55,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-20 11:47:55,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:47:55,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:47:55,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:47:55,679 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:47:55,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:55,680 INFO L85 PathProgramCache]: Analyzing trace with hash -33472501, now seen corresponding path program 1 times [2022-11-20 11:47:55,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:55,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245539222] [2022-11-20 11:47:55,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:55,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:55,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:47:55,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:55,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245539222] [2022-11-20 11:47:55,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245539222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:55,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:55,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:47:55,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309623097] [2022-11-20 11:47:55,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:55,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:47:55,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:55,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:47:55,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:47:55,926 INFO L87 Difference]: Start difference. First operand 337 states and 439 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:56,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:47:56,858 INFO L93 Difference]: Finished difference Result 855 states and 1182 transitions. [2022-11-20 11:47:56,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:47:56,858 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-11-20 11:47:56,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:47:56,861 INFO L225 Difference]: With dead ends: 855 [2022-11-20 11:47:56,862 INFO L226 Difference]: Without dead ends: 744 [2022-11-20 11:47:56,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:47:56,863 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 1358 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:47:56,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1358 Valid, 1027 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:47:56,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2022-11-20 11:47:56,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 337. [2022-11-20 11:47:56,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.343558282208589) internal successors, (438), 336 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:56,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 438 transitions. [2022-11-20 11:47:56,929 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 438 transitions. Word has length 63 [2022-11-20 11:47:56,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:47:56,929 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 438 transitions. [2022-11-20 11:47:56,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:56,930 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 438 transitions. [2022-11-20 11:47:56,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-20 11:47:56,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:47:56,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:47:56,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:47:56,931 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:47:56,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:56,932 INFO L85 PathProgramCache]: Analyzing trace with hash 543767036, now seen corresponding path program 1 times [2022-11-20 11:47:56,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:56,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877992758] [2022-11-20 11:47:56,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:56,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:57,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:47:57,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:57,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877992758] [2022-11-20 11:47:57,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877992758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:57,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:57,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:47:57,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665886424] [2022-11-20 11:47:57,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:57,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:47:57,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:57,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:47:57,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:47:57,229 INFO L87 Difference]: Start difference. First operand 337 states and 438 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:58,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:47:58,096 INFO L93 Difference]: Finished difference Result 852 states and 1178 transitions. [2022-11-20 11:47:58,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:47:58,097 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-11-20 11:47:58,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:47:58,100 INFO L225 Difference]: With dead ends: 852 [2022-11-20 11:47:58,100 INFO L226 Difference]: Without dead ends: 744 [2022-11-20 11:47:58,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:47:58,102 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 1386 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:47:58,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 995 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:47:58,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2022-11-20 11:47:58,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 337. [2022-11-20 11:47:58,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3404907975460123) internal successors, (437), 336 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:58,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 437 transitions. [2022-11-20 11:47:58,167 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 437 transitions. Word has length 63 [2022-11-20 11:47:58,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:47:58,167 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 437 transitions. [2022-11-20 11:47:58,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:58,168 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 437 transitions. [2022-11-20 11:47:58,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-20 11:47:58,168 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:47:58,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:47:58,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:47:58,169 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:47:58,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:58,170 INFO L85 PathProgramCache]: Analyzing trace with hash -130251118, now seen corresponding path program 1 times [2022-11-20 11:47:58,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:58,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773525721] [2022-11-20 11:47:58,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:58,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:58,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:47:58,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:58,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773525721] [2022-11-20 11:47:58,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773525721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:58,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:58,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:47:58,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962094406] [2022-11-20 11:47:58,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:58,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:47:58,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:58,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:47:58,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:47:58,528 INFO L87 Difference]: Start difference. First operand 337 states and 437 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:59,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:47:59,559 INFO L93 Difference]: Finished difference Result 882 states and 1222 transitions. [2022-11-20 11:47:59,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:47:59,560 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-11-20 11:47:59,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:47:59,564 INFO L225 Difference]: With dead ends: 882 [2022-11-20 11:47:59,564 INFO L226 Difference]: Without dead ends: 764 [2022-11-20 11:47:59,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:47:59,566 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 1701 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1701 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:47:59,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1701 Valid, 1138 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:47:59,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2022-11-20 11:47:59,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 337. [2022-11-20 11:47:59,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3374233128834356) internal successors, (436), 336 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:59,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 436 transitions. [2022-11-20 11:47:59,660 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 436 transitions. Word has length 63 [2022-11-20 11:47:59,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:47:59,661 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 436 transitions. [2022-11-20 11:47:59,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:47:59,661 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 436 transitions. [2022-11-20 11:47:59,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-20 11:47:59,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:47:59,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:47:59,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:47:59,663 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:47:59,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:59,663 INFO L85 PathProgramCache]: Analyzing trace with hash -143831436, now seen corresponding path program 1 times [2022-11-20 11:47:59,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:47:59,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882321349] [2022-11-20 11:47:59,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:59,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:47:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:59,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:47:59,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:47:59,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882321349] [2022-11-20 11:47:59,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882321349] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:59,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:59,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:47:59,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942005959] [2022-11-20 11:47:59,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:59,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:47:59,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:47:59,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:47:59,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:47:59,880 INFO L87 Difference]: Start difference. First operand 337 states and 436 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:00,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:00,370 INFO L93 Difference]: Finished difference Result 687 states and 902 transitions. [2022-11-20 11:48:00,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 11:48:00,370 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-11-20 11:48:00,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:00,372 INFO L225 Difference]: With dead ends: 687 [2022-11-20 11:48:00,373 INFO L226 Difference]: Without dead ends: 502 [2022-11-20 11:48:00,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:48:00,374 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 1042 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:00,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1042 Valid, 471 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:48:00,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2022-11-20 11:48:00,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 337. [2022-11-20 11:48:00,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.334355828220859) internal successors, (435), 336 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:00,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 435 transitions. [2022-11-20 11:48:00,485 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 435 transitions. Word has length 63 [2022-11-20 11:48:00,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:00,486 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 435 transitions. [2022-11-20 11:48:00,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:00,486 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 435 transitions. [2022-11-20 11:48:00,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-20 11:48:00,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:00,487 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:48:00,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:48:00,488 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:48:00,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:00,489 INFO L85 PathProgramCache]: Analyzing trace with hash -2022048839, now seen corresponding path program 1 times [2022-11-20 11:48:00,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:48:00,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856392899] [2022-11-20 11:48:00,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:00,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:48:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:02,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:48:02,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:48:02,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856392899] [2022-11-20 11:48:02,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856392899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:48:02,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:48:02,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-11-20 11:48:02,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968786638] [2022-11-20 11:48:02,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:02,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 11:48:02,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:48:02,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 11:48:02,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=458, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:48:02,047 INFO L87 Difference]: Start difference. First operand 337 states and 435 transitions. Second operand has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:06,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:06,842 INFO L93 Difference]: Finished difference Result 674 states and 883 transitions. [2022-11-20 11:48:06,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 11:48:06,843 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-11-20 11:48:06,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:06,845 INFO L225 Difference]: With dead ends: 674 [2022-11-20 11:48:06,845 INFO L226 Difference]: Without dead ends: 662 [2022-11-20 11:48:06,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=328, Invalid=1652, Unknown=0, NotChecked=0, Total=1980 [2022-11-20 11:48:06,847 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 1906 mSDsluCounter, 6080 mSDsCounter, 0 mSdLazyCounter, 3604 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1906 SdHoareTripleChecker+Valid, 6591 SdHoareTripleChecker+Invalid, 3617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:06,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1906 Valid, 6591 Invalid, 3617 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 3604 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-20 11:48:06,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2022-11-20 11:48:06,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 343. [2022-11-20 11:48:06,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 332 states have (on average 1.3313253012048192) internal successors, (442), 342 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:06,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 442 transitions. [2022-11-20 11:48:06,968 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 442 transitions. Word has length 65 [2022-11-20 11:48:06,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:06,968 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 442 transitions. [2022-11-20 11:48:06,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:06,968 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 442 transitions. [2022-11-20 11:48:06,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-20 11:48:06,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:06,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:48:06,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:48:06,970 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:48:06,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:06,971 INFO L85 PathProgramCache]: Analyzing trace with hash 71013216, now seen corresponding path program 1 times [2022-11-20 11:48:06,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:48:06,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851303772] [2022-11-20 11:48:06,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:06,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:48:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:08,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:48:08,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:48:08,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851303772] [2022-11-20 11:48:08,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851303772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:48:08,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:48:08,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-11-20 11:48:08,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323088053] [2022-11-20 11:48:08,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:08,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 11:48:08,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:48:08,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 11:48:08,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:48:08,242 INFO L87 Difference]: Start difference. First operand 343 states and 442 transitions. Second operand has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:12,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:12,200 INFO L93 Difference]: Finished difference Result 772 states and 1034 transitions. [2022-11-20 11:48:12,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 11:48:12,207 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-11-20 11:48:12,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:12,210 INFO L225 Difference]: With dead ends: 772 [2022-11-20 11:48:12,210 INFO L226 Difference]: Without dead ends: 659 [2022-11-20 11:48:12,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=287, Invalid=1519, Unknown=0, NotChecked=0, Total=1806 [2022-11-20 11:48:12,212 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 1762 mSDsluCounter, 5614 mSDsCounter, 0 mSdLazyCounter, 3461 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1762 SdHoareTripleChecker+Valid, 6110 SdHoareTripleChecker+Invalid, 3475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:12,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1762 Valid, 6110 Invalid, 3475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3461 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 11:48:12,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2022-11-20 11:48:12,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 342. [2022-11-20 11:48:12,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 331 states have (on average 1.3262839879154078) internal successors, (439), 341 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:12,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 439 transitions. [2022-11-20 11:48:12,308 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 439 transitions. Word has length 65 [2022-11-20 11:48:12,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:12,309 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 439 transitions. [2022-11-20 11:48:12,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:12,309 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 439 transitions. [2022-11-20 11:48:12,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-20 11:48:12,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:12,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:48:12,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:48:12,311 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:48:12,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:12,311 INFO L85 PathProgramCache]: Analyzing trace with hash -907607662, now seen corresponding path program 1 times [2022-11-20 11:48:12,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:48:12,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379029676] [2022-11-20 11:48:12,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:12,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:48:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:12,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:48:12,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:48:12,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379029676] [2022-11-20 11:48:12,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379029676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:48:12,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:48:12,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:48:12,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561018983] [2022-11-20 11:48:12,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:12,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:48:12,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:48:12,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:48:12,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:48:12,865 INFO L87 Difference]: Start difference. First operand 342 states and 439 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:14,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:14,259 INFO L93 Difference]: Finished difference Result 1121 states and 1569 transitions. [2022-11-20 11:48:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 11:48:14,259 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-11-20 11:48:14,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:14,263 INFO L225 Difference]: With dead ends: 1121 [2022-11-20 11:48:14,263 INFO L226 Difference]: Without dead ends: 993 [2022-11-20 11:48:14,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:48:14,265 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 1338 mSDsluCounter, 3241 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 3919 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:14,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1338 Valid, 3919 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:48:14,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2022-11-20 11:48:14,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 320. [2022-11-20 11:48:14,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 311 states have (on average 1.315112540192926) internal successors, (409), 319 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:14,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 409 transitions. [2022-11-20 11:48:14,369 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 409 transitions. Word has length 65 [2022-11-20 11:48:14,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:14,370 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 409 transitions. [2022-11-20 11:48:14,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:14,370 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 409 transitions. [2022-11-20 11:48:14,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-20 11:48:14,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:14,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:48:14,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 11:48:14,372 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:48:14,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:14,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1360022849, now seen corresponding path program 1 times [2022-11-20 11:48:14,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:48:14,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649139965] [2022-11-20 11:48:14,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:14,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:48:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:14,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:48:14,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:48:14,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649139965] [2022-11-20 11:48:14,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649139965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:48:14,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:48:14,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 11:48:14,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487844363] [2022-11-20 11:48:14,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:14,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:48:14,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:48:14,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:48:14,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:48:14,866 INFO L87 Difference]: Start difference. First operand 320 states and 409 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:15,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:15,878 INFO L93 Difference]: Finished difference Result 810 states and 1111 transitions. [2022-11-20 11:48:15,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:48:15,878 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-11-20 11:48:15,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:15,880 INFO L225 Difference]: With dead ends: 810 [2022-11-20 11:48:15,880 INFO L226 Difference]: Without dead ends: 641 [2022-11-20 11:48:15,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:48:15,881 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 1315 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:15,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 1463 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:48:15,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-11-20 11:48:15,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 257. [2022-11-20 11:48:15,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.3174603174603174) internal successors, (332), 256 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:15,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 332 transitions. [2022-11-20 11:48:15,984 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 332 transitions. Word has length 65 [2022-11-20 11:48:15,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:15,985 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 332 transitions. [2022-11-20 11:48:15,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:15,985 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 332 transitions. [2022-11-20 11:48:15,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-20 11:48:15,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:15,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:48:15,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 11:48:15,986 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:48:15,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:15,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1910519334, now seen corresponding path program 1 times [2022-11-20 11:48:15,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:48:15,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440677081] [2022-11-20 11:48:15,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:15,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:48:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:16,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:48:16,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:48:16,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440677081] [2022-11-20 11:48:16,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440677081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:48:16,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:48:16,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:48:16,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922566949] [2022-11-20 11:48:16,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:16,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:48:16,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:48:16,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:48:16,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:48:16,203 INFO L87 Difference]: Start difference. First operand 257 states and 332 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:16,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:16,781 INFO L93 Difference]: Finished difference Result 424 states and 558 transitions. [2022-11-20 11:48:16,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:48:16,781 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-11-20 11:48:16,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:16,783 INFO L225 Difference]: With dead ends: 424 [2022-11-20 11:48:16,783 INFO L226 Difference]: Without dead ends: 417 [2022-11-20 11:48:16,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-11-20 11:48:16,784 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 860 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:16,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 514 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:48:16,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-11-20 11:48:16,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 257. [2022-11-20 11:48:16,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.3095238095238095) internal successors, (330), 256 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:16,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 330 transitions. [2022-11-20 11:48:16,873 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 330 transitions. Word has length 66 [2022-11-20 11:48:16,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:16,874 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 330 transitions. [2022-11-20 11:48:16,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:16,874 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 330 transitions. [2022-11-20 11:48:16,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-20 11:48:16,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:16,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:48:16,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 11:48:16,875 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:48:16,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:16,876 INFO L85 PathProgramCache]: Analyzing trace with hash -679485959, now seen corresponding path program 1 times [2022-11-20 11:48:16,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:48:16,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270703462] [2022-11-20 11:48:16,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:16,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:48:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:17,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:48:17,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:48:17,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270703462] [2022-11-20 11:48:17,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270703462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:48:17,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:48:17,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:48:17,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316368224] [2022-11-20 11:48:17,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:17,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-20 11:48:17,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:48:17,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-20 11:48:17,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2022-11-20 11:48:17,771 INFO L87 Difference]: Start difference. First operand 257 states and 330 transitions. Second operand has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 17 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:19,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:19,986 INFO L93 Difference]: Finished difference Result 825 states and 1125 transitions. [2022-11-20 11:48:19,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-20 11:48:19,986 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 17 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-11-20 11:48:19,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:19,991 INFO L225 Difference]: With dead ends: 825 [2022-11-20 11:48:19,991 INFO L226 Difference]: Without dead ends: 821 [2022-11-20 11:48:19,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=223, Invalid=833, Unknown=0, NotChecked=0, Total=1056 [2022-11-20 11:48:19,992 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 1587 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1587 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:19,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1587 Valid, 3076 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 11:48:19,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2022-11-20 11:48:20,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 262. [2022-11-20 11:48:20,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 257 states have (on average 1.3073929961089494) internal successors, (336), 261 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:20,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 336 transitions. [2022-11-20 11:48:20,103 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 336 transitions. Word has length 66 [2022-11-20 11:48:20,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:20,103 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 336 transitions. [2022-11-20 11:48:20,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 17 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:20,104 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 336 transitions. [2022-11-20 11:48:20,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-20 11:48:20,104 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:20,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:48:20,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 11:48:20,105 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:48:20,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:20,106 INFO L85 PathProgramCache]: Analyzing trace with hash -595757799, now seen corresponding path program 1 times [2022-11-20 11:48:20,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:48:20,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338639768] [2022-11-20 11:48:20,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:20,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:48:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:20,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:48:20,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:48:20,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338639768] [2022-11-20 11:48:20,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338639768] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:48:20,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:48:20,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 11:48:20,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159801384] [2022-11-20 11:48:20,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:20,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:48:20,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:48:20,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:48:20,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:48:20,588 INFO L87 Difference]: Start difference. First operand 262 states and 336 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:21,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:21,389 INFO L93 Difference]: Finished difference Result 518 states and 709 transitions. [2022-11-20 11:48:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:48:21,390 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-11-20 11:48:21,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:21,391 INFO L225 Difference]: With dead ends: 518 [2022-11-20 11:48:21,391 INFO L226 Difference]: Without dead ends: 360 [2022-11-20 11:48:21,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:48:21,394 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 629 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:21,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 1647 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:48:21,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-11-20 11:48:21,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 210. [2022-11-20 11:48:21,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 208 states have (on average 1.3269230769230769) internal successors, (276), 209 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:21,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 276 transitions. [2022-11-20 11:48:21,521 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 276 transitions. Word has length 66 [2022-11-20 11:48:21,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:21,521 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 276 transitions. [2022-11-20 11:48:21,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:21,522 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 276 transitions. [2022-11-20 11:48:21,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-20 11:48:21,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:21,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:48:21,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 11:48:21,525 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:48:21,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:21,526 INFO L85 PathProgramCache]: Analyzing trace with hash 476193166, now seen corresponding path program 1 times [2022-11-20 11:48:21,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:48:21,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887989357] [2022-11-20 11:48:21,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:21,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:48:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:21,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:48:21,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:48:21,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887989357] [2022-11-20 11:48:21,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887989357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:48:21,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:48:21,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:48:21,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900981666] [2022-11-20 11:48:21,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:21,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:48:21,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:48:21,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:48:21,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:48:21,733 INFO L87 Difference]: Start difference. First operand 210 states and 276 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:22,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:22,400 INFO L93 Difference]: Finished difference Result 500 states and 688 transitions. [2022-11-20 11:48:22,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 11:48:22,401 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-11-20 11:48:22,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:22,403 INFO L225 Difference]: With dead ends: 500 [2022-11-20 11:48:22,403 INFO L226 Difference]: Without dead ends: 364 [2022-11-20 11:48:22,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-11-20 11:48:22,404 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 613 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:22,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 527 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:48:22,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-11-20 11:48:22,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 210. [2022-11-20 11:48:22,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 208 states have (on average 1.3173076923076923) internal successors, (274), 209 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:22,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 274 transitions. [2022-11-20 11:48:22,507 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 274 transitions. Word has length 66 [2022-11-20 11:48:22,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:22,507 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 274 transitions. [2022-11-20 11:48:22,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:22,508 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 274 transitions. [2022-11-20 11:48:22,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-20 11:48:22,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:22,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:48:22,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 11:48:22,509 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:48:22,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:22,510 INFO L85 PathProgramCache]: Analyzing trace with hash 989039241, now seen corresponding path program 1 times [2022-11-20 11:48:22,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:48:22,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23726343] [2022-11-20 11:48:22,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:22,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:48:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:23,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:48:23,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:48:23,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23726343] [2022-11-20 11:48:23,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23726343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:48:23,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:48:23,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-11-20 11:48:23,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113246409] [2022-11-20 11:48:23,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:23,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 11:48:23,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:48:23,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 11:48:23,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:48:23,782 INFO L87 Difference]: Start difference. First operand 210 states and 274 transitions. Second operand has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:26,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:26,778 INFO L93 Difference]: Finished difference Result 795 states and 1132 transitions. [2022-11-20 11:48:26,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-20 11:48:26,778 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-11-20 11:48:26,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:26,780 INFO L225 Difference]: With dead ends: 795 [2022-11-20 11:48:26,780 INFO L226 Difference]: Without dead ends: 789 [2022-11-20 11:48:26,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=272, Invalid=1450, Unknown=0, NotChecked=0, Total=1722 [2022-11-20 11:48:26,782 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 1069 mSDsluCounter, 2897 mSDsCounter, 0 mSdLazyCounter, 1458 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1069 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 1469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:26,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1069 Valid, 3092 Invalid, 1469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1458 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 11:48:26,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2022-11-20 11:48:26,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 221. [2022-11-20 11:48:26,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 219 states have (on average 1.3150684931506849) internal successors, (288), 220 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:26,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 288 transitions. [2022-11-20 11:48:26,946 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 288 transitions. Word has length 68 [2022-11-20 11:48:26,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:26,947 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 288 transitions. [2022-11-20 11:48:26,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:26,952 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 288 transitions. [2022-11-20 11:48:26,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-20 11:48:26,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:26,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:48:26,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 11:48:26,954 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:48:26,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:26,954 INFO L85 PathProgramCache]: Analyzing trace with hash 882869858, now seen corresponding path program 1 times [2022-11-20 11:48:26,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:48:26,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264596225] [2022-11-20 11:48:26,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:26,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:48:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:27,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:48:27,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:48:27,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264596225] [2022-11-20 11:48:27,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264596225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:48:27,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:48:27,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-20 11:48:27,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393350184] [2022-11-20 11:48:27,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:27,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 11:48:27,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:48:27,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 11:48:27,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:48:27,702 INFO L87 Difference]: Start difference. First operand 221 states and 288 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:30,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:30,015 INFO L93 Difference]: Finished difference Result 1117 states and 1607 transitions. [2022-11-20 11:48:30,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 11:48:30,016 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-11-20 11:48:30,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:30,020 INFO L225 Difference]: With dead ends: 1117 [2022-11-20 11:48:30,020 INFO L226 Difference]: Without dead ends: 1111 [2022-11-20 11:48:30,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=140, Invalid=510, Unknown=0, NotChecked=0, Total=650 [2022-11-20 11:48:30,022 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 1455 mSDsluCounter, 2751 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:30,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1455 Valid, 3151 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 11:48:30,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2022-11-20 11:48:30,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 222. [2022-11-20 11:48:30,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 220 states have (on average 1.3181818181818181) internal successors, (290), 221 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:30,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 290 transitions. [2022-11-20 11:48:30,130 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 290 transitions. Word has length 69 [2022-11-20 11:48:30,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:30,131 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 290 transitions. [2022-11-20 11:48:30,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:30,131 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 290 transitions. [2022-11-20 11:48:30,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-20 11:48:30,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:30,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:48:30,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-20 11:48:30,133 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:48:30,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:30,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1637741865, now seen corresponding path program 1 times [2022-11-20 11:48:30,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:48:30,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019911454] [2022-11-20 11:48:30,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:30,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:48:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:30,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:48:30,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:48:30,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019911454] [2022-11-20 11:48:30,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019911454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:48:30,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:48:30,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 11:48:30,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997454133] [2022-11-20 11:48:30,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:30,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:48:30,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:48:30,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:48:30,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:48:30,786 INFO L87 Difference]: Start difference. First operand 222 states and 290 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:32,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:32,778 INFO L93 Difference]: Finished difference Result 1030 states and 1476 transitions. [2022-11-20 11:48:32,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 11:48:32,779 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-11-20 11:48:32,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:32,782 INFO L225 Difference]: With dead ends: 1030 [2022-11-20 11:48:32,783 INFO L226 Difference]: Without dead ends: 1024 [2022-11-20 11:48:32,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-20 11:48:32,784 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 1372 mSDsluCounter, 2245 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 2604 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:32,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1372 Valid, 2604 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:48:32,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-11-20 11:48:32,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 204. [2022-11-20 11:48:32,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 203 states have (on average 1.3152709359605912) internal successors, (267), 203 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:32,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 267 transitions. [2022-11-20 11:48:32,913 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 267 transitions. Word has length 69 [2022-11-20 11:48:32,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:32,914 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 267 transitions. [2022-11-20 11:48:32,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:32,914 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 267 transitions. [2022-11-20 11:48:32,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-20 11:48:32,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:32,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:48:32,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 11:48:32,916 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:48:32,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:32,916 INFO L85 PathProgramCache]: Analyzing trace with hash 262304865, now seen corresponding path program 1 times [2022-11-20 11:48:32,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:48:32,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389203222] [2022-11-20 11:48:32,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:32,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:48:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:33,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:48:33,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:48:33,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389203222] [2022-11-20 11:48:33,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389203222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:48:33,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:48:33,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:48:33,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069976717] [2022-11-20 11:48:33,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:33,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:48:33,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:48:33,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:48:33,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:48:33,053 INFO L87 Difference]: Start difference. First operand 204 states and 267 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:34,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:34,240 INFO L93 Difference]: Finished difference Result 1052 states and 1547 transitions. [2022-11-20 11:48:34,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:48:34,241 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-11-20 11:48:34,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:34,244 INFO L225 Difference]: With dead ends: 1052 [2022-11-20 11:48:34,245 INFO L226 Difference]: Without dead ends: 946 [2022-11-20 11:48:34,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:48:34,246 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 902 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:34,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [902 Valid, 960 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:48:34,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2022-11-20 11:48:34,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 308. [2022-11-20 11:48:34,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 307 states have (on average 1.3745928338762214) internal successors, (422), 307 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:34,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 422 transitions. [2022-11-20 11:48:34,497 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 422 transitions. Word has length 91 [2022-11-20 11:48:34,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:34,497 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 422 transitions. [2022-11-20 11:48:34,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:34,497 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 422 transitions. [2022-11-20 11:48:34,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-20 11:48:34,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:34,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:48:34,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-20 11:48:34,499 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:48:34,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:34,499 INFO L85 PathProgramCache]: Analyzing trace with hash -403802728, now seen corresponding path program 1 times [2022-11-20 11:48:34,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:48:34,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119958623] [2022-11-20 11:48:34,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:34,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:48:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:34,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:48:34,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:48:34,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119958623] [2022-11-20 11:48:34,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119958623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:48:34,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:48:34,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:48:34,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759287488] [2022-11-20 11:48:34,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:34,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:48:34,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:48:34,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:48:34,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:48:34,636 INFO L87 Difference]: Start difference. First operand 308 states and 422 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:35,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:35,735 INFO L93 Difference]: Finished difference Result 1254 states and 1838 transitions. [2022-11-20 11:48:35,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:48:35,736 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-11-20 11:48:35,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:35,740 INFO L225 Difference]: With dead ends: 1254 [2022-11-20 11:48:35,740 INFO L226 Difference]: Without dead ends: 1044 [2022-11-20 11:48:35,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:48:35,741 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 652 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:35,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 677 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:48:35,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2022-11-20 11:48:36,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 516. [2022-11-20 11:48:36,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 515 states have (on average 1.4252427184466019) internal successors, (734), 515 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:36,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 734 transitions. [2022-11-20 11:48:36,129 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 734 transitions. Word has length 93 [2022-11-20 11:48:36,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:36,129 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 734 transitions. [2022-11-20 11:48:36,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:36,129 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 734 transitions. [2022-11-20 11:48:36,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-20 11:48:36,131 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:36,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:48:36,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-20 11:48:36,132 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:48:36,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:36,133 INFO L85 PathProgramCache]: Analyzing trace with hash 638646745, now seen corresponding path program 1 times [2022-11-20 11:48:36,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:48:36,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812938430] [2022-11-20 11:48:36,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:36,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:48:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:36,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:48:36,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:48:36,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812938430] [2022-11-20 11:48:36,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812938430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:48:36,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:48:36,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:48:36,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498302391] [2022-11-20 11:48:36,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:36,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:48:36,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:48:36,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:48:36,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:48:36,418 INFO L87 Difference]: Start difference. First operand 516 states and 734 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:37,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:37,032 INFO L93 Difference]: Finished difference Result 936 states and 1362 transitions. [2022-11-20 11:48:37,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:48:37,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-11-20 11:48:37,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:37,034 INFO L225 Difference]: With dead ends: 936 [2022-11-20 11:48:37,034 INFO L226 Difference]: Without dead ends: 518 [2022-11-20 11:48:37,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:48:37,035 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 420 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:37,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 380 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:48:37,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-11-20 11:48:37,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 516. [2022-11-20 11:48:37,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 515 states have (on average 1.4174757281553398) internal successors, (730), 515 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:37,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 730 transitions. [2022-11-20 11:48:37,418 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 730 transitions. Word has length 93 [2022-11-20 11:48:37,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:37,419 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 730 transitions. [2022-11-20 11:48:37,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:37,419 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 730 transitions. [2022-11-20 11:48:37,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-20 11:48:37,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:37,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:48:37,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-20 11:48:37,421 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:48:37,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:37,422 INFO L85 PathProgramCache]: Analyzing trace with hash 572153233, now seen corresponding path program 1 times [2022-11-20 11:48:37,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:48:37,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74990544] [2022-11-20 11:48:37,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:37,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:48:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:37,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:48:37,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:48:37,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74990544] [2022-11-20 11:48:37,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74990544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:48:37,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:48:37,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:48:37,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752964726] [2022-11-20 11:48:37,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:37,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:48:37,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:48:37,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:48:37,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:48:37,493 INFO L87 Difference]: Start difference. First operand 516 states and 730 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:38,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:38,334 INFO L93 Difference]: Finished difference Result 1300 states and 1888 transitions. [2022-11-20 11:48:38,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:48:38,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-11-20 11:48:38,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:38,337 INFO L225 Difference]: With dead ends: 1300 [2022-11-20 11:48:38,337 INFO L226 Difference]: Without dead ends: 882 [2022-11-20 11:48:38,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:48:38,338 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 89 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:38,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 252 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:48:38,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2022-11-20 11:48:39,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 872. [2022-11-20 11:48:39,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 871 states have (on average 1.4190585533869116) internal successors, (1236), 871 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:39,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1236 transitions. [2022-11-20 11:48:39,004 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1236 transitions. Word has length 93 [2022-11-20 11:48:39,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:39,004 INFO L495 AbstractCegarLoop]: Abstraction has 872 states and 1236 transitions. [2022-11-20 11:48:39,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:39,005 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1236 transitions. [2022-11-20 11:48:39,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-20 11:48:39,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:39,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:48:39,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-20 11:48:39,007 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:48:39,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:39,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1651929496, now seen corresponding path program 1 times [2022-11-20 11:48:39,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:48:39,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557278881] [2022-11-20 11:48:39,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:39,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:48:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:39,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:48:39,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:48:39,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557278881] [2022-11-20 11:48:39,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557278881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:48:39,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:48:39,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:48:39,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721968945] [2022-11-20 11:48:39,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:39,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:48:39,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:48:39,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:48:39,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:48:39,160 INFO L87 Difference]: Start difference. First operand 872 states and 1236 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:41,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:41,322 INFO L93 Difference]: Finished difference Result 2620 states and 3785 transitions. [2022-11-20 11:48:41,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:48:41,323 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-11-20 11:48:41,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:41,329 INFO L225 Difference]: With dead ends: 2620 [2022-11-20 11:48:41,329 INFO L226 Difference]: Without dead ends: 2232 [2022-11-20 11:48:41,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:48:41,331 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 620 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:41,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 681 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:48:41,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2022-11-20 11:48:42,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 1452. [2022-11-20 11:48:42,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1451 states have (on average 1.4321157822191593) internal successors, (2078), 1451 states have internal predecessors, (2078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:42,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 2078 transitions. [2022-11-20 11:48:42,558 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 2078 transitions. Word has length 93 [2022-11-20 11:48:42,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:42,558 INFO L495 AbstractCegarLoop]: Abstraction has 1452 states and 2078 transitions. [2022-11-20 11:48:42,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:42,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 2078 transitions. [2022-11-20 11:48:42,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-20 11:48:42,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:42,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:48:42,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-20 11:48:42,560 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:48:42,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:42,561 INFO L85 PathProgramCache]: Analyzing trace with hash -767888488, now seen corresponding path program 1 times [2022-11-20 11:48:42,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:48:42,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581737404] [2022-11-20 11:48:42,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:42,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:48:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:42,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:48:42,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:48:42,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581737404] [2022-11-20 11:48:42,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581737404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:48:42,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:48:42,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:48:42,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266082829] [2022-11-20 11:48:42,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:42,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:48:42,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:48:42,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:48:42,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:48:42,686 INFO L87 Difference]: Start difference. First operand 1452 states and 2078 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:45,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:45,171 INFO L93 Difference]: Finished difference Result 3006 states and 4347 transitions. [2022-11-20 11:48:45,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:48:45,171 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-11-20 11:48:45,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:45,178 INFO L225 Difference]: With dead ends: 3006 [2022-11-20 11:48:45,178 INFO L226 Difference]: Without dead ends: 2618 [2022-11-20 11:48:45,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:48:45,179 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 586 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:45,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 748 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:48:45,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2618 states. [2022-11-20 11:48:46,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2618 to 1838. [2022-11-20 11:48:46,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.437125748502994) internal successors, (2640), 1837 states have internal predecessors, (2640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:46,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2640 transitions. [2022-11-20 11:48:46,773 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2640 transitions. Word has length 93 [2022-11-20 11:48:46,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:46,774 INFO L495 AbstractCegarLoop]: Abstraction has 1838 states and 2640 transitions. [2022-11-20 11:48:46,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:46,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2640 transitions. [2022-11-20 11:48:46,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-20 11:48:46,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:46,777 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:48:46,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-20 11:48:46,777 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:48:46,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:46,778 INFO L85 PathProgramCache]: Analyzing trace with hash -2122104904, now seen corresponding path program 1 times [2022-11-20 11:48:46,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:48:46,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381941867] [2022-11-20 11:48:46,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:46,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:48:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:46,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:48:46,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:48:46,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381941867] [2022-11-20 11:48:46,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381941867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:48:46,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:48:46,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:48:46,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593550599] [2022-11-20 11:48:46,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:46,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:48:46,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:48:46,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:48:46,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:48:46,912 INFO L87 Difference]: Start difference. First operand 1838 states and 2640 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:50,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:50,346 INFO L93 Difference]: Finished difference Result 5174 states and 7454 transitions. [2022-11-20 11:48:50,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:48:50,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-11-20 11:48:50,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:50,358 INFO L225 Difference]: With dead ends: 5174 [2022-11-20 11:48:50,359 INFO L226 Difference]: Without dead ends: 3434 [2022-11-20 11:48:50,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:48:50,362 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 73 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:50,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 333 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:48:50,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2022-11-20 11:48:53,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3288. [2022-11-20 11:48:53,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3288 states, 3287 states have (on average 1.431092181320353) internal successors, (4704), 3287 states have internal predecessors, (4704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:53,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3288 states to 3288 states and 4704 transitions. [2022-11-20 11:48:53,195 INFO L78 Accepts]: Start accepts. Automaton has 3288 states and 4704 transitions. Word has length 94 [2022-11-20 11:48:53,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:53,195 INFO L495 AbstractCegarLoop]: Abstraction has 3288 states and 4704 transitions. [2022-11-20 11:48:53,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:53,196 INFO L276 IsEmpty]: Start isEmpty. Operand 3288 states and 4704 transitions. [2022-11-20 11:48:53,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-20 11:48:53,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:53,197 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:48:53,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-20 11:48:53,198 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:48:53,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:53,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1022881993, now seen corresponding path program 1 times [2022-11-20 11:48:53,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:48:53,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267458659] [2022-11-20 11:48:53,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:53,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:48:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:53,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:48:53,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:48:53,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267458659] [2022-11-20 11:48:53,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267458659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:48:53,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:48:53,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:48:53,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543753038] [2022-11-20 11:48:53,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:53,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:48:53,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:48:53,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:48:53,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:48:53,304 INFO L87 Difference]: Start difference. First operand 3288 states and 4704 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:48:59,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:59,417 INFO L93 Difference]: Finished difference Result 9380 states and 13394 transitions. [2022-11-20 11:48:59,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:48:59,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-11-20 11:48:59,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:59,435 INFO L225 Difference]: With dead ends: 9380 [2022-11-20 11:48:59,435 INFO L226 Difference]: Without dead ends: 6190 [2022-11-20 11:48:59,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:48:59,440 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 66 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:59,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 333 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:48:59,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6190 states. [2022-11-20 11:49:05,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6190 to 5900. [2022-11-20 11:49:05,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5900 states, 5899 states have (on average 1.4178674351585014) internal successors, (8364), 5899 states have internal predecessors, (8364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:05,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5900 states to 5900 states and 8364 transitions. [2022-11-20 11:49:05,033 INFO L78 Accepts]: Start accepts. Automaton has 5900 states and 8364 transitions. Word has length 95 [2022-11-20 11:49:05,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:49:05,034 INFO L495 AbstractCegarLoop]: Abstraction has 5900 states and 8364 transitions. [2022-11-20 11:49:05,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:05,034 INFO L276 IsEmpty]: Start isEmpty. Operand 5900 states and 8364 transitions. [2022-11-20 11:49:05,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-20 11:49:05,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:49:05,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:49:05,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-20 11:49:05,036 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:49:05,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:05,037 INFO L85 PathProgramCache]: Analyzing trace with hash -369091068, now seen corresponding path program 1 times [2022-11-20 11:49:05,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:05,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032401090] [2022-11-20 11:49:05,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:05,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:05,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:05,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:49:05,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:05,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032401090] [2022-11-20 11:49:05,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032401090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:05,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:05,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:49:05,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603682128] [2022-11-20 11:49:05,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:05,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:49:05,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:05,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:49:05,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:49:05,174 INFO L87 Difference]: Start difference. First operand 5900 states and 8364 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:17,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:49:17,292 INFO L93 Difference]: Finished difference Result 16928 states and 23870 transitions. [2022-11-20 11:49:17,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:49:17,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-11-20 11:49:17,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:49:17,315 INFO L225 Difference]: With dead ends: 16928 [2022-11-20 11:49:17,316 INFO L226 Difference]: Without dead ends: 11126 [2022-11-20 11:49:17,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:49:17,322 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 56 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:49:17,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 333 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:49:17,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11126 states. [2022-11-20 11:49:29,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11126 to 10548. [2022-11-20 11:49:29,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10548 states, 10547 states have (on average 1.3983123162984734) internal successors, (14748), 10547 states have internal predecessors, (14748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:29,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10548 states to 10548 states and 14748 transitions. [2022-11-20 11:49:29,084 INFO L78 Accepts]: Start accepts. Automaton has 10548 states and 14748 transitions. Word has length 96 [2022-11-20 11:49:29,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:49:29,085 INFO L495 AbstractCegarLoop]: Abstraction has 10548 states and 14748 transitions. [2022-11-20 11:49:29,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:29,085 INFO L276 IsEmpty]: Start isEmpty. Operand 10548 states and 14748 transitions. [2022-11-20 11:49:29,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-20 11:49:29,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:49:29,087 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:49:29,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-20 11:49:29,087 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:49:29,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:29,088 INFO L85 PathProgramCache]: Analyzing trace with hash -553088427, now seen corresponding path program 1 times [2022-11-20 11:49:29,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:49:29,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247186787] [2022-11-20 11:49:29,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:29,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:49:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:29,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:49:29,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:49:29,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247186787] [2022-11-20 11:49:29,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247186787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:29,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:29,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:49:29,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388961390] [2022-11-20 11:49:29,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:29,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:49:29,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:49:29,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:49:29,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:49:29,351 INFO L87 Difference]: Start difference. First operand 10548 states and 14748 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:49:50,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:49:50,315 INFO L93 Difference]: Finished difference Result 18658 states and 25852 transitions. [2022-11-20 11:49:50,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:49:50,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-11-20 11:49:50,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:49:50,359 INFO L225 Difference]: With dead ends: 18658 [2022-11-20 11:49:50,359 INFO L226 Difference]: Without dead ends: 18656 [2022-11-20 11:49:50,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:49:50,364 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 260 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:49:50,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 843 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:49:50,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18656 states. [2022-11-20 11:50:02,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18656 to 10932. [2022-11-20 11:50:02,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10932 states, 10931 states have (on average 1.3770011892781997) internal successors, (15052), 10931 states have internal predecessors, (15052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:50:02,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10932 states to 10932 states and 15052 transitions. [2022-11-20 11:50:02,572 INFO L78 Accepts]: Start accepts. Automaton has 10932 states and 15052 transitions. Word has length 97 [2022-11-20 11:50:02,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:50:02,573 INFO L495 AbstractCegarLoop]: Abstraction has 10932 states and 15052 transitions. [2022-11-20 11:50:02,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:50:02,573 INFO L276 IsEmpty]: Start isEmpty. Operand 10932 states and 15052 transitions. [2022-11-20 11:50:02,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-20 11:50:02,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:50:02,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:50:02,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-20 11:50:02,575 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:50:02,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:02,576 INFO L85 PathProgramCache]: Analyzing trace with hash -404836723, now seen corresponding path program 1 times [2022-11-20 11:50:02,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:50:02,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794016869] [2022-11-20 11:50:02,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:02,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:50:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:02,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:50:02,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:50:02,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794016869] [2022-11-20 11:50:02,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794016869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:50:02,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:50:02,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:50:02,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382874797] [2022-11-20 11:50:02,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:50:02,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:50:02,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:50:02,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:50:02,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:50:02,748 INFO L87 Difference]: Start difference. First operand 10932 states and 15052 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:50:22,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:50:22,359 INFO L93 Difference]: Finished difference Result 20606 states and 28497 transitions. [2022-11-20 11:50:22,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:50:22,359 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-11-20 11:50:22,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:50:22,395 INFO L225 Difference]: With dead ends: 20606 [2022-11-20 11:50:22,396 INFO L226 Difference]: Without dead ends: 18188 [2022-11-20 11:50:22,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:50:22,402 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 645 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:50:22,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 758 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:50:22,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18188 states. [2022-11-20 11:50:37,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18188 to 13348. [2022-11-20 11:50:37,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13348 states, 13347 states have (on average 1.3770884843035889) internal successors, (18380), 13347 states have internal predecessors, (18380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:50:37,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13348 states to 13348 states and 18380 transitions. [2022-11-20 11:50:37,286 INFO L78 Accepts]: Start accepts. Automaton has 13348 states and 18380 transitions. Word has length 97 [2022-11-20 11:50:37,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:50:37,287 INFO L495 AbstractCegarLoop]: Abstraction has 13348 states and 18380 transitions. [2022-11-20 11:50:37,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:50:37,287 INFO L276 IsEmpty]: Start isEmpty. Operand 13348 states and 18380 transitions. [2022-11-20 11:50:37,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-20 11:50:37,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:50:37,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:50:37,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-20 11:50:37,289 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:50:37,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:37,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1477016020, now seen corresponding path program 1 times [2022-11-20 11:50:37,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:50:37,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747364055] [2022-11-20 11:50:37,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:37,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:50:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:37,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:50:37,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:50:37,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747364055] [2022-11-20 11:50:37,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747364055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:50:37,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:50:37,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:50:37,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685770222] [2022-11-20 11:50:37,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:50:37,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:50:37,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:50:37,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:50:37,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:50:37,399 INFO L87 Difference]: Start difference. First operand 13348 states and 18380 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:51:02,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:51:02,026 INFO L93 Difference]: Finished difference Result 34744 states and 47782 transitions. [2022-11-20 11:51:02,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:02,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-11-20 11:51:02,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:51:02,063 INFO L225 Difference]: With dead ends: 34744 [2022-11-20 11:51:02,064 INFO L226 Difference]: Without dead ends: 21494 [2022-11-20 11:51:02,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:02,077 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 77 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:51:02,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 336 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:51:02,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21494 states. [2022-11-20 11:51:26,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21494 to 20084. [2022-11-20 11:51:26,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20084 states, 20083 states have (on average 1.3553751929492606) internal successors, (27220), 20083 states have internal predecessors, (27220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:51:26,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20084 states to 20084 states and 27220 transitions. [2022-11-20 11:51:26,218 INFO L78 Accepts]: Start accepts. Automaton has 20084 states and 27220 transitions. Word has length 98 [2022-11-20 11:51:26,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:51:26,218 INFO L495 AbstractCegarLoop]: Abstraction has 20084 states and 27220 transitions. [2022-11-20 11:51:26,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:51:26,219 INFO L276 IsEmpty]: Start isEmpty. Operand 20084 states and 27220 transitions. [2022-11-20 11:51:26,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-20 11:51:26,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:51:26,224 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:26,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-20 11:51:26,224 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:51:26,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:26,225 INFO L85 PathProgramCache]: Analyzing trace with hash -659580428, now seen corresponding path program 1 times [2022-11-20 11:51:26,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:26,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745628565] [2022-11-20 11:51:26,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:26,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:26,326 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:51:26,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:26,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745628565] [2022-11-20 11:51:26,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745628565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:26,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:26,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:51:26,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645905756] [2022-11-20 11:51:26,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:26,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:26,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:26,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:26,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:26,329 INFO L87 Difference]: Start difference. First operand 20084 states and 27220 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:51:48,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:51:48,402 INFO L93 Difference]: Finished difference Result 40072 states and 54334 transitions. [2022-11-20 11:51:48,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:48,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-11-20 11:51:48,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:51:48,429 INFO L225 Difference]: With dead ends: 40072 [2022-11-20 11:51:48,429 INFO L226 Difference]: Without dead ends: 20086 [2022-11-20 11:51:48,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:48,450 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 68 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:51:48,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 310 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:51:48,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20086 states. [2022-11-20 11:52:10,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20086 to 20084. [2022-11-20 11:52:10,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20084 states, 20083 states have (on average 1.3378479310859932) internal successors, (26868), 20083 states have internal predecessors, (26868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:52:10,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20084 states to 20084 states and 26868 transitions. [2022-11-20 11:52:10,664 INFO L78 Accepts]: Start accepts. Automaton has 20084 states and 26868 transitions. Word has length 124 [2022-11-20 11:52:10,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:52:10,665 INFO L495 AbstractCegarLoop]: Abstraction has 20084 states and 26868 transitions. [2022-11-20 11:52:10,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:52:10,665 INFO L276 IsEmpty]: Start isEmpty. Operand 20084 states and 26868 transitions. [2022-11-20 11:52:10,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-20 11:52:10,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:52:10,668 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:52:10,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-20 11:52:10,669 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 11:52:10,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:52:10,669 INFO L85 PathProgramCache]: Analyzing trace with hash -448021413, now seen corresponding path program 1 times [2022-11-20 11:52:10,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:52:10,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173758470] [2022-11-20 11:52:10,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:52:10,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:52:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:52:11,165 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:52:11,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:52:11,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173758470] [2022-11-20 11:52:11,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173758470] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:52:11,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100437176] [2022-11-20 11:52:11,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:52:11,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:52:11,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:52:11,170 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:52:11,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:52:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:52:11,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-20 11:52:11,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:52:12,291 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:52:12,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:52:13,641 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:52:13,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100437176] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:52:13,642 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:52:13,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2022-11-20 11:52:13,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978848829] [2022-11-20 11:52:13,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:52:13,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-20 11:52:13,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:52:13,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-20 11:52:13,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2022-11-20 11:52:13,645 INFO L87 Difference]: Start difference. First operand 20084 states and 26868 transitions. Second operand has 27 states, 27 states have (on average 10.851851851851851) internal successors, (293), 26 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:58:17,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:58:17,051 INFO L93 Difference]: Finished difference Result 295980 states and 387262 transitions. [2022-11-20 11:58:17,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 326 states. [2022-11-20 11:58:17,051 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 10.851851851851851) internal successors, (293), 26 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-11-20 11:58:17,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:58:17,828 INFO L225 Difference]: With dead ends: 295980 [2022-11-20 11:58:17,828 INFO L226 Difference]: Without dead ends: 275994 [2022-11-20 11:58:17,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 578 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 347 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52316 ImplicationChecksByTransitivity, 24.0s TimeCoverageRelationStatistics Valid=13676, Invalid=107776, Unknown=0, NotChecked=0, Total=121452 [2022-11-20 11:58:17,965 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 9800 mSDsluCounter, 6527 mSDsCounter, 0 mSdLazyCounter, 6362 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9800 SdHoareTripleChecker+Valid, 6960 SdHoareTripleChecker+Invalid, 6424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 6362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:58:17,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9800 Valid, 6960 Invalid, 6424 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 6362 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-20 11:58:18,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275994 states. [2022-11-20 12:00:00,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275994 to 72313. [2022-11-20 12:00:00,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72313 states, 72312 states have (on average 1.3217031751299924) internal successors, (95575), 72312 states have internal predecessors, (95575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:00:01,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72313 states to 72313 states and 95575 transitions. [2022-11-20 12:00:01,025 INFO L78 Accepts]: Start accepts. Automaton has 72313 states and 95575 transitions. Word has length 124 [2022-11-20 12:00:01,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:00:01,025 INFO L495 AbstractCegarLoop]: Abstraction has 72313 states and 95575 transitions. [2022-11-20 12:00:01,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.851851851851851) internal successors, (293), 26 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:00:01,026 INFO L276 IsEmpty]: Start isEmpty. Operand 72313 states and 95575 transitions. [2022-11-20 12:00:01,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-20 12:00:01,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:00:01,034 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:00:01,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:00:01,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-11-20 12:00:01,241 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 12:00:01,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:01,241 INFO L85 PathProgramCache]: Analyzing trace with hash 645605547, now seen corresponding path program 1 times [2022-11-20 12:00:01,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:01,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721076085] [2022-11-20 12:00:01,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:01,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:02,185 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:00:02,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:00:02,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721076085] [2022-11-20 12:00:02,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721076085] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:00:02,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615132332] [2022-11-20 12:00:02,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:02,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:00:02,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:00:02,187 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:00:02,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc42bcd8-fd9b-4ddd-9f85-beaf263f1979/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 12:00:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:02,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 12:00:02,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:00:03,240 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:00:03,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:00:04,504 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:00:04,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615132332] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:00:04,505 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:00:04,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 30 [2022-11-20 12:00:04,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443521368] [2022-11-20 12:00:04,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:00:04,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-20 12:00:04,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:00:04,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-20 12:00:04,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=788, Unknown=0, NotChecked=0, Total=870 [2022-11-20 12:00:04,507 INFO L87 Difference]: Start difference. First operand 72313 states and 95575 transitions. Second operand has 30 states, 30 states have (on average 11.266666666666667) internal successors, (338), 30 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)