./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_e3aee75f-cc71-485d-a767-945f35b61ca3/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3aee75f-cc71-485d-a767-945f35b61ca3/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3aee75f-cc71-485d-a767-945f35b61ca3/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3aee75f-cc71-485d-a767-945f35b61ca3/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3aee75f-cc71-485d-a767-945f35b61ca3/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3aee75f-cc71-485d-a767-945f35b61ca3/bin/uautomizer-tPACEb0tL8 --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 c7aa3cc4b1f15d564db90712e4f440d0f111d49f542d9eda58173576bb757792 --- 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-e04fb08 [2022-11-16 11:17:01,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:17:01,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:17:01,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:17:01,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:17:01,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:17:01,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:17:01,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:17:01,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:17:01,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:17:01,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:17:01,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:17:01,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:17:01,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:17:01,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:17:01,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:17:01,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:17:01,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:17:01,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:17:01,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:17:01,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:17:01,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:17:01,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:17:01,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:17:01,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:17:01,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:17:01,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:17:01,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:17:01,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:17:01,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:17:01,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:17:01,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:17:01,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:17:01,688 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:17:01,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:17:01,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:17:01,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:17:01,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:17:01,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:17:01,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:17:01,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:17:01,699 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3aee75f-cc71-485d-a767-945f35b61ca3/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:17:01,741 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:17:01,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:17:01,752 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:17:01,753 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:17:01,754 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:17:01,755 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:17:01,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:17:01,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:17:01,757 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:17:01,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:17:01,759 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:17:01,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:17:01,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:17:01,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:17:01,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:17:01,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:17:01,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:17:01,761 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:17:01,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:17:01,763 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:17:01,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:17:01,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:17:01,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:17:01,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:17:01,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:17:01,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:17:01,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:17:01,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:17:01,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:17:01,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:17:01,771 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:17:01,771 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:17:01,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:17:01,771 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_e3aee75f-cc71-485d-a767-945f35b61ca3/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3aee75f-cc71-485d-a767-945f35b61ca3/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7aa3cc4b1f15d564db90712e4f440d0f111d49f542d9eda58173576bb757792 [2022-11-16 11:17:02,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:17:02,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:17:02,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:17:02,206 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:17:02,207 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:17:02,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3aee75f-cc71-485d-a767-945f35b61ca3/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2022-11-16 11:17:02,308 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3aee75f-cc71-485d-a767-945f35b61ca3/bin/uautomizer-tPACEb0tL8/data/516f1e617/4bf920bb87104c0bb40286dcf5fa2b5f/FLAGdf13be269 [2022-11-16 11:17:03,050 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:17:03,051 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2022-11-16 11:17:03,066 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3aee75f-cc71-485d-a767-945f35b61ca3/bin/uautomizer-tPACEb0tL8/data/516f1e617/4bf920bb87104c0bb40286dcf5fa2b5f/FLAGdf13be269 [2022-11-16 11:17:03,221 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3aee75f-cc71-485d-a767-945f35b61ca3/bin/uautomizer-tPACEb0tL8/data/516f1e617/4bf920bb87104c0bb40286dcf5fa2b5f [2022-11-16 11:17:03,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:17:03,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:17:03,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:17:03,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:17:03,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:17:03,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:17:03" (1/1) ... [2022-11-16 11:17:03,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c0dfa9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:03, skipping insertion in model container [2022-11-16 11:17:03,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:17:03" (1/1) ... [2022-11-16 11:17:03,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:17:03,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:17:03,751 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[9421,9434] [2022-11-16 11:17:03,811 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12913,12926] [2022-11-16 11:17:03,822 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14069,14082] [2022-11-16 11:17:03,830 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14725,14738] [2022-11-16 11:17:03,848 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16246,16259] [2022-11-16 11:17:03,854 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16902,16915] [2022-11-16 11:17:03,863 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[17886,17899] [2022-11-16 11:17:03,890 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20224,20237] [2022-11-16 11:17:03,896 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20883,20896] [2022-11-16 11:17:03,903 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[21907,21920] [2022-11-16 11:17:03,916 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23782,23795] [2022-11-16 11:17:04,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:17:04,120 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:17:04,249 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[9421,9434] [2022-11-16 11:17:04,283 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12913,12926] [2022-11-16 11:17:04,303 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14069,14082] [2022-11-16 11:17:04,314 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14725,14738] [2022-11-16 11:17:04,331 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16246,16259] [2022-11-16 11:17:04,339 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16902,16915] [2022-11-16 11:17:04,351 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[17886,17899] [2022-11-16 11:17:04,376 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20224,20237] [2022-11-16 11:17:04,389 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20883,20896] [2022-11-16 11:17:04,398 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[21907,21920] [2022-11-16 11:17:04,419 WARN L229 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_e3aee75f-cc71-485d-a767-945f35b61ca3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23782,23795] [2022-11-16 11:17:04,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:17:04,556 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:17:04,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:04 WrapperNode [2022-11-16 11:17:04,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:17:04,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:17:04,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:17:04,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:17:04,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:04" (1/1) ... [2022-11-16 11:17:04,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:04" (1/1) ... [2022-11-16 11:17:04,730 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1870 [2022-11-16 11:17:04,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:17:04,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:17:04,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:17:04,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:17:04,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:04" (1/1) ... [2022-11-16 11:17:04,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:04" (1/1) ... [2022-11-16 11:17:04,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:04" (1/1) ... [2022-11-16 11:17:04,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:04" (1/1) ... [2022-11-16 11:17:04,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:04" (1/1) ... [2022-11-16 11:17:04,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:04" (1/1) ... [2022-11-16 11:17:04,818 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:04" (1/1) ... [2022-11-16 11:17:04,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:04" (1/1) ... [2022-11-16 11:17:04,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:17:04,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:17:04,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:17:04,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:17:04,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:04" (1/1) ... [2022-11-16 11:17:04,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:17:04,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3aee75f-cc71-485d-a767-945f35b61ca3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:17:04,935 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3aee75f-cc71-485d-a767-945f35b61ca3/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:17:04,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3aee75f-cc71-485d-a767-945f35b61ca3/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:17:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:17:04,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:17:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:17:04,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:17:05,208 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:17:05,211 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:17:07,013 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:17:07,026 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:17:07,026 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:17:07,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:17:07 BoogieIcfgContainer [2022-11-16 11:17:07,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:17:07,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:17:07,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:17:07,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:17:07,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:17:03" (1/3) ... [2022-11-16 11:17:07,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b0047f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:17:07, skipping insertion in model container [2022-11-16 11:17:07,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:17:04" (2/3) ... [2022-11-16 11:17:07,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b0047f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:17:07, skipping insertion in model container [2022-11-16 11:17:07,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:17:07" (3/3) ... [2022-11-16 11:17:07,041 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2022-11-16 11:17:07,066 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:17:07,067 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-16 11:17:07,149 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:17:07,157 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;@662d2d43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:17:07,157 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-16 11:17:07,164 INFO L276 IsEmpty]: Start isEmpty. Operand has 358 states, 346 states have (on average 1.8381502890173411) internal successors, (636), 357 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:07,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-16 11:17:07,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:07,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:07,184 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:07,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:07,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1374718599, now seen corresponding path program 1 times [2022-11-16 11:17:07,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:07,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636108476] [2022-11-16 11:17:07,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:07,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:08,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:08,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:08,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636108476] [2022-11-16 11:17:08,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636108476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:08,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:08,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:17:08,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633041783] [2022-11-16 11:17:08,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:08,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:17:08,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:08,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:17:08,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:17:08,086 INFO L87 Difference]: Start difference. First operand has 358 states, 346 states have (on average 1.8381502890173411) internal successors, (636), 357 states have internal predecessors, (636), 0 states have call successors, (0), 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) [2022-11-16 11:17:08,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:08,756 INFO L93 Difference]: Finished difference Result 704 states and 1191 transitions. [2022-11-16 11:17:08,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:17:08,759 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 [2022-11-16 11:17:08,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:08,775 INFO L225 Difference]: With dead ends: 704 [2022-11-16 11:17:08,775 INFO L226 Difference]: Without dead ends: 428 [2022-11-16 11:17:08,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:17:08,783 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 1877 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1877 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:08,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1877 Valid, 500 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:17:08,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-11-16 11:17:08,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 386. [2022-11-16 11:17:08,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 375 states have (on average 1.3546666666666667) internal successors, (508), 385 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:08,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 508 transitions. [2022-11-16 11:17:08,861 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 508 transitions. Word has length 59 [2022-11-16 11:17:08,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:08,862 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 508 transitions. [2022-11-16 11:17:08,862 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) [2022-11-16 11:17:08,863 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 508 transitions. [2022-11-16 11:17:08,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-16 11:17:08,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:08,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:08,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:17:08,867 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:08,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:08,868 INFO L85 PathProgramCache]: Analyzing trace with hash -2133391140, now seen corresponding path program 1 times [2022-11-16 11:17:08,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:08,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678463155] [2022-11-16 11:17:08,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:08,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:09,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:09,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:09,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678463155] [2022-11-16 11:17:09,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678463155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:09,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:09,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:17:09,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888509053] [2022-11-16 11:17:09,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:09,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:17:09,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:09,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:17:09,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:17:09,135 INFO L87 Difference]: Start difference. First operand 386 states and 508 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) [2022-11-16 11:17:09,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:09,506 INFO L93 Difference]: Finished difference Result 681 states and 918 transitions. [2022-11-16 11:17:09,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:17:09,510 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 [2022-11-16 11:17:09,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:09,514 INFO L225 Difference]: With dead ends: 681 [2022-11-16 11:17:09,515 INFO L226 Difference]: Without dead ends: 366 [2022-11-16 11:17:09,519 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 [2022-11-16 11:17:09,522 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 953 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:09,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 210 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:17:09,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-11-16 11:17:09,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2022-11-16 11:17:09,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 355 states have (on average 1.3577464788732394) internal successors, (482), 365 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:09,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 482 transitions. [2022-11-16 11:17:09,595 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 482 transitions. Word has length 60 [2022-11-16 11:17:09,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:09,596 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 482 transitions. [2022-11-16 11:17:09,596 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) [2022-11-16 11:17:09,597 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 482 transitions. [2022-11-16 11:17:09,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-16 11:17:09,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:09,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:09,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:17:09,600 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:09,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:09,600 INFO L85 PathProgramCache]: Analyzing trace with hash 626465560, now seen corresponding path program 1 times [2022-11-16 11:17:09,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:09,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220729648] [2022-11-16 11:17:09,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:09,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:09,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:09,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:09,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220729648] [2022-11-16 11:17:09,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220729648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:09,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:09,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:17:09,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060960272] [2022-11-16 11:17:09,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:09,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:17:09,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:09,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:17:09,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:17:09,790 INFO L87 Difference]: Start difference. First operand 366 states and 482 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 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) [2022-11-16 11:17:10,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:10,079 INFO L93 Difference]: Finished difference Result 661 states and 890 transitions. [2022-11-16 11:17:10,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:17:10,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 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 [2022-11-16 11:17:10,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:10,082 INFO L225 Difference]: With dead ends: 661 [2022-11-16 11:17:10,083 INFO L226 Difference]: Without dead ends: 347 [2022-11-16 11:17:10,083 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 [2022-11-16 11:17:10,085 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 913 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:10,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 199 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:17:10,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-11-16 11:17:10,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2022-11-16 11:17:10,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 336 states have (on average 1.3660714285714286) internal successors, (459), 346 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:10,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 459 transitions. [2022-11-16 11:17:10,117 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 459 transitions. Word has length 61 [2022-11-16 11:17:10,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:10,118 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 459 transitions. [2022-11-16 11:17:10,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 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) [2022-11-16 11:17:10,119 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 459 transitions. [2022-11-16 11:17:10,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-16 11:17:10,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:10,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:10,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:17:10,121 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:10,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:10,122 INFO L85 PathProgramCache]: Analyzing trace with hash 55190193, now seen corresponding path program 1 times [2022-11-16 11:17:10,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:10,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583815228] [2022-11-16 11:17:10,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:10,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:10,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:10,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:10,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583815228] [2022-11-16 11:17:10,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583815228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:10,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:10,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:17:10,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886623732] [2022-11-16 11:17:10,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:10,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:17:10,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:10,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:17:10,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:17:10,295 INFO L87 Difference]: Start difference. First operand 347 states and 459 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:10,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:10,636 INFO L93 Difference]: Finished difference Result 642 states and 865 transitions. [2022-11-16 11:17:10,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:17:10,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-11-16 11:17:10,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:10,639 INFO L225 Difference]: With dead ends: 642 [2022-11-16 11:17:10,640 INFO L226 Difference]: Without dead ends: 339 [2022-11-16 11:17:10,640 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 [2022-11-16 11:17:10,643 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 870 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:10,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 195 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:17:10,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-11-16 11:17:10,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2022-11-16 11:17:10,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.3658536585365855) internal successors, (448), 338 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) [2022-11-16 11:17:10,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 448 transitions. [2022-11-16 11:17:10,704 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 448 transitions. Word has length 62 [2022-11-16 11:17:10,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:10,706 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 448 transitions. [2022-11-16 11:17:10,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:10,706 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 448 transitions. [2022-11-16 11:17:10,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-16 11:17:10,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:10,710 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:10,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:17:10,711 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:10,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:10,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1176799625, now seen corresponding path program 1 times [2022-11-16 11:17:10,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:10,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832771089] [2022-11-16 11:17:10,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:10,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:10,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:11,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:11,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:11,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832771089] [2022-11-16 11:17:11,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832771089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:11,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:11,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:17:11,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939893977] [2022-11-16 11:17:11,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:11,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:17:11,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:11,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:17:11,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:17:11,268 INFO L87 Difference]: Start difference. First operand 339 states and 448 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) [2022-11-16 11:17:12,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:12,573 INFO L93 Difference]: Finished difference Result 890 states and 1229 transitions. [2022-11-16 11:17:12,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:17:12,574 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 [2022-11-16 11:17:12,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:12,581 INFO L225 Difference]: With dead ends: 890 [2022-11-16 11:17:12,583 INFO L226 Difference]: Without dead ends: 750 [2022-11-16 11:17:12,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:17:12,588 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 1796 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:12,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1796 Valid, 1064 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 11:17:12,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2022-11-16 11:17:12,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 339. [2022-11-16 11:17:12,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.3628048780487805) internal successors, (447), 338 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) [2022-11-16 11:17:12,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 447 transitions. [2022-11-16 11:17:12,680 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 447 transitions. Word has length 63 [2022-11-16 11:17:12,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:12,682 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 447 transitions. [2022-11-16 11:17:12,683 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) [2022-11-16 11:17:12,683 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 447 transitions. [2022-11-16 11:17:12,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-16 11:17:12,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:12,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:12,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:17:12,685 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:12,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:12,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1585644853, now seen corresponding path program 1 times [2022-11-16 11:17:12,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:12,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582342905] [2022-11-16 11:17:12,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:12,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:13,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:13,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:13,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582342905] [2022-11-16 11:17:13,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582342905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:13,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:13,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:17:13,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491546900] [2022-11-16 11:17:13,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:13,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:17:13,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:13,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:17:13,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:17:13,146 INFO L87 Difference]: Start difference. First operand 339 states and 447 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) [2022-11-16 11:17:14,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:14,167 INFO L93 Difference]: Finished difference Result 884 states and 1227 transitions. [2022-11-16 11:17:14,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:17:14,167 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 [2022-11-16 11:17:14,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:14,173 INFO L225 Difference]: With dead ends: 884 [2022-11-16 11:17:14,174 INFO L226 Difference]: Without dead ends: 766 [2022-11-16 11:17:14,175 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 [2022-11-16 11:17:14,176 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 1002 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:14,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1002 Valid, 996 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 11:17:14,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2022-11-16 11:17:14,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 339. [2022-11-16 11:17:14,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.3597560975609757) internal successors, (446), 338 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) [2022-11-16 11:17:14,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 446 transitions. [2022-11-16 11:17:14,241 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 446 transitions. Word has length 63 [2022-11-16 11:17:14,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:14,242 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 446 transitions. [2022-11-16 11:17:14,242 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) [2022-11-16 11:17:14,242 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 446 transitions. [2022-11-16 11:17:14,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-16 11:17:14,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:14,244 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:14,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:17:14,245 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:14,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:14,245 INFO L85 PathProgramCache]: Analyzing trace with hash 202563885, now seen corresponding path program 1 times [2022-11-16 11:17:14,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:14,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152008250] [2022-11-16 11:17:14,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:14,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:14,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:14,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:14,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152008250] [2022-11-16 11:17:14,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152008250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:14,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:14,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:17:14,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874410066] [2022-11-16 11:17:14,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:14,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:17:14,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:14,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:17:14,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:17:14,663 INFO L87 Difference]: Start difference. First operand 339 states and 446 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) [2022-11-16 11:17:15,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:15,253 INFO L93 Difference]: Finished difference Result 689 states and 911 transitions. [2022-11-16 11:17:15,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:17:15,254 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 [2022-11-16 11:17:15,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:15,258 INFO L225 Difference]: With dead ends: 689 [2022-11-16 11:17:15,258 INFO L226 Difference]: Without dead ends: 504 [2022-11-16 11:17:15,259 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 [2022-11-16 11:17:15,261 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 1501 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:15,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 448 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:17:15,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2022-11-16 11:17:15,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 339. [2022-11-16 11:17:15,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.3567073170731707) internal successors, (445), 338 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:15,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 445 transitions. [2022-11-16 11:17:15,353 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 445 transitions. Word has length 63 [2022-11-16 11:17:15,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:15,355 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 445 transitions. [2022-11-16 11:17:15,355 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) [2022-11-16 11:17:15,355 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 445 transitions. [2022-11-16 11:17:15,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-16 11:17:15,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:15,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:15,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:17:15,358 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:15,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:15,358 INFO L85 PathProgramCache]: Analyzing trace with hash -620136770, now seen corresponding path program 1 times [2022-11-16 11:17:15,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:15,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902332748] [2022-11-16 11:17:15,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:15,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:15,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:15,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:15,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902332748] [2022-11-16 11:17:15,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902332748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:15,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:15,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:17:15,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210154346] [2022-11-16 11:17:15,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:15,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:17:15,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:15,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:17:15,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:17:15,792 INFO L87 Difference]: Start difference. First operand 339 states and 445 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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) [2022-11-16 11:17:16,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:16,989 INFO L93 Difference]: Finished difference Result 857 states and 1181 transitions. [2022-11-16 11:17:16,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:17:16,991 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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 [2022-11-16 11:17:16,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:16,994 INFO L225 Difference]: With dead ends: 857 [2022-11-16 11:17:16,994 INFO L226 Difference]: Without dead ends: 746 [2022-11-16 11:17:16,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:17:16,996 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1846 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1846 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:16,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1846 Valid, 953 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 11:17:16,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-11-16 11:17:17,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 339. [2022-11-16 11:17:17,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.353658536585366) internal successors, (444), 338 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) [2022-11-16 11:17:17,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 444 transitions. [2022-11-16 11:17:17,066 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 444 transitions. Word has length 65 [2022-11-16 11:17:17,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:17,066 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 444 transitions. [2022-11-16 11:17:17,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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) [2022-11-16 11:17:17,067 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 444 transitions. [2022-11-16 11:17:17,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-16 11:17:17,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:17,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:17,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:17:17,068 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:17,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:17,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1292060332, now seen corresponding path program 1 times [2022-11-16 11:17:17,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:17,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196823924] [2022-11-16 11:17:17,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:17,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:17,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:17,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:17,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196823924] [2022-11-16 11:17:17,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196823924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:17,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:17,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:17:17,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764394309] [2022-11-16 11:17:17,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:17,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:17:17,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:17,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:17:17,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:17:17,465 INFO L87 Difference]: Start difference. First operand 339 states and 444 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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) [2022-11-16 11:17:18,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:18,601 INFO L93 Difference]: Finished difference Result 889 states and 1228 transitions. [2022-11-16 11:17:18,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:17:18,602 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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 [2022-11-16 11:17:18,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:18,606 INFO L225 Difference]: With dead ends: 889 [2022-11-16 11:17:18,606 INFO L226 Difference]: Without dead ends: 766 [2022-11-16 11:17:18,607 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 [2022-11-16 11:17:18,609 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 1383 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:18,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1383 Valid, 1116 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 11:17:18,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2022-11-16 11:17:18,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 339. [2022-11-16 11:17:18,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.350609756097561) internal successors, (443), 338 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:18,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 443 transitions. [2022-11-16 11:17:18,731 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 443 transitions. Word has length 65 [2022-11-16 11:17:18,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:18,732 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 443 transitions. [2022-11-16 11:17:18,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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) [2022-11-16 11:17:18,732 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 443 transitions. [2022-11-16 11:17:18,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-16 11:17:18,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:18,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:18,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:17:18,734 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:18,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:18,735 INFO L85 PathProgramCache]: Analyzing trace with hash -109241464, now seen corresponding path program 1 times [2022-11-16 11:17:18,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:18,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452780718] [2022-11-16 11:17:18,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:18,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:19,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:19,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:19,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452780718] [2022-11-16 11:17:19,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452780718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:19,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:19,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:17:19,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558347087] [2022-11-16 11:17:19,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:19,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:17:19,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:19,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:17:19,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:17:19,079 INFO L87 Difference]: Start difference. First operand 339 states and 443 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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) [2022-11-16 11:17:20,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:20,209 INFO L93 Difference]: Finished difference Result 854 states and 1176 transitions. [2022-11-16 11:17:20,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:17:20,210 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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 [2022-11-16 11:17:20,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:20,213 INFO L225 Difference]: With dead ends: 854 [2022-11-16 11:17:20,214 INFO L226 Difference]: Without dead ends: 746 [2022-11-16 11:17:20,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:17:20,215 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1400 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1400 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:20,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1400 Valid, 973 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 11:17:20,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-11-16 11:17:20,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 339. [2022-11-16 11:17:20,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.3475609756097562) internal successors, (442), 338 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) [2022-11-16 11:17:20,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 442 transitions. [2022-11-16 11:17:20,300 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 442 transitions. Word has length 65 [2022-11-16 11:17:20,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:20,301 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 442 transitions. [2022-11-16 11:17:20,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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) [2022-11-16 11:17:20,301 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 442 transitions. [2022-11-16 11:17:20,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-16 11:17:20,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:20,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:20,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:17:20,303 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:20,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:20,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1375273345, now seen corresponding path program 1 times [2022-11-16 11:17:20,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:20,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365628990] [2022-11-16 11:17:20,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:20,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:20,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:20,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:20,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365628990] [2022-11-16 11:17:20,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365628990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:20,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:20,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:17:20,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536352643] [2022-11-16 11:17:20,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:20,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:17:20,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:20,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:17:20,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:17:20,656 INFO L87 Difference]: Start difference. First operand 339 states and 442 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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) [2022-11-16 11:17:21,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:21,837 INFO L93 Difference]: Finished difference Result 751 states and 1019 transitions. [2022-11-16 11:17:21,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:17:21,838 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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 [2022-11-16 11:17:21,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:21,842 INFO L225 Difference]: With dead ends: 751 [2022-11-16 11:17:21,842 INFO L226 Difference]: Without dead ends: 746 [2022-11-16 11:17:21,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:17:21,843 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 1291 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1291 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:21,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1291 Valid, 1118 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 11:17:21,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-11-16 11:17:21,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 339. [2022-11-16 11:17:21,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.3445121951219512) internal successors, (441), 338 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:21,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 441 transitions. [2022-11-16 11:17:21,929 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 441 transitions. Word has length 65 [2022-11-16 11:17:21,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:21,930 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 441 transitions. [2022-11-16 11:17:21,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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) [2022-11-16 11:17:21,930 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 441 transitions. [2022-11-16 11:17:21,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-16 11:17:21,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:21,931 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, 1, 1] [2022-11-16 11:17:21,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:17:21,932 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:21,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:21,933 INFO L85 PathProgramCache]: Analyzing trace with hash -636059456, now seen corresponding path program 1 times [2022-11-16 11:17:21,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:21,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924419759] [2022-11-16 11:17:21,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:21,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:22,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:22,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:22,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924419759] [2022-11-16 11:17:22,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924419759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:22,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:22,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:17:22,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919911006] [2022-11-16 11:17:22,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:22,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:17:22,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:22,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:17:22,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:17:22,290 INFO L87 Difference]: Start difference. First operand 339 states and 441 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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) [2022-11-16 11:17:23,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:23,450 INFO L93 Difference]: Finished difference Result 786 states and 1086 transitions. [2022-11-16 11:17:23,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:17:23,450 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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 [2022-11-16 11:17:23,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:23,453 INFO L225 Difference]: With dead ends: 786 [2022-11-16 11:17:23,453 INFO L226 Difference]: Without dead ends: 616 [2022-11-16 11:17:23,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:17:23,455 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 1416 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:23,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1416 Valid, 1115 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 11:17:23,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-11-16 11:17:23,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 339. [2022-11-16 11:17:23,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.3384146341463414) internal successors, (439), 338 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) [2022-11-16 11:17:23,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 439 transitions. [2022-11-16 11:17:23,538 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 439 transitions. Word has length 65 [2022-11-16 11:17:23,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:23,539 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 439 transitions. [2022-11-16 11:17:23,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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) [2022-11-16 11:17:23,539 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 439 transitions. [2022-11-16 11:17:23,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-16 11:17:23,540 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:23,541 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:23,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:17:23,541 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:23,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:23,542 INFO L85 PathProgramCache]: Analyzing trace with hash 2058271748, now seen corresponding path program 1 times [2022-11-16 11:17:23,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:23,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328902914] [2022-11-16 11:17:23,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:23,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:23,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:23,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:23,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328902914] [2022-11-16 11:17:23,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328902914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:23,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:23,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:17:23,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781321220] [2022-11-16 11:17:23,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:23,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:17:23,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:23,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:17:23,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:17:23,886 INFO L87 Difference]: Start difference. First operand 339 states and 439 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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) [2022-11-16 11:17:25,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:25,208 INFO L93 Difference]: Finished difference Result 751 states and 1015 transitions. [2022-11-16 11:17:25,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:17:25,208 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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 [2022-11-16 11:17:25,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:25,211 INFO L225 Difference]: With dead ends: 751 [2022-11-16 11:17:25,211 INFO L226 Difference]: Without dead ends: 746 [2022-11-16 11:17:25,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:17:25,212 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 1575 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1575 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:25,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1575 Valid, 1124 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 11:17:25,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-11-16 11:17:25,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 339. [2022-11-16 11:17:25,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.3323170731707317) internal successors, (437), 338 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) [2022-11-16 11:17:25,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 437 transitions. [2022-11-16 11:17:25,316 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 437 transitions. Word has length 65 [2022-11-16 11:17:25,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:25,317 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 437 transitions. [2022-11-16 11:17:25,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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) [2022-11-16 11:17:25,317 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 437 transitions. [2022-11-16 11:17:25,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-16 11:17:25,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:25,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:25,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:17:25,319 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:25,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:25,320 INFO L85 PathProgramCache]: Analyzing trace with hash -324498446, now seen corresponding path program 1 times [2022-11-16 11:17:25,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:25,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294716489] [2022-11-16 11:17:25,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:25,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:25,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:25,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:25,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294716489] [2022-11-16 11:17:25,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294716489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:25,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:25,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:17:25,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100885817] [2022-11-16 11:17:25,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:25,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:17:25,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:25,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:17:25,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:17:25,631 INFO L87 Difference]: Start difference. First operand 339 states and 437 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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) [2022-11-16 11:17:26,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:26,807 INFO L93 Difference]: Finished difference Result 783 states and 1061 transitions. [2022-11-16 11:17:26,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:17:26,808 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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 [2022-11-16 11:17:26,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:26,811 INFO L225 Difference]: With dead ends: 783 [2022-11-16 11:17:26,811 INFO L226 Difference]: Without dead ends: 766 [2022-11-16 11:17:26,812 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 [2022-11-16 11:17:26,813 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 1143 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:26,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 1295 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 11:17:26,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2022-11-16 11:17:26,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 339. [2022-11-16 11:17:26,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.326219512195122) internal successors, (435), 338 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) [2022-11-16 11:17:26,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 435 transitions. [2022-11-16 11:17:26,880 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 435 transitions. Word has length 65 [2022-11-16 11:17:26,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:26,880 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 435 transitions. [2022-11-16 11:17:26,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 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) [2022-11-16 11:17:26,881 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 435 transitions. [2022-11-16 11:17:26,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-16 11:17:26,882 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:26,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:26,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:17:26,882 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:26,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:26,883 INFO L85 PathProgramCache]: Analyzing trace with hash -809481061, now seen corresponding path program 1 times [2022-11-16 11:17:26,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:26,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547872298] [2022-11-16 11:17:26,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:26,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:27,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:27,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:27,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547872298] [2022-11-16 11:17:27,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547872298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:27,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:27,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:17:27,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599170726] [2022-11-16 11:17:27,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:27,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:17:27,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:27,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:17:27,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:17:27,641 INFO L87 Difference]: Start difference. First operand 339 states and 435 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:29,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:29,190 INFO L93 Difference]: Finished difference Result 861 states and 1156 transitions. [2022-11-16 11:17:29,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:17:29,191 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-16 11:17:29,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:29,194 INFO L225 Difference]: With dead ends: 861 [2022-11-16 11:17:29,194 INFO L226 Difference]: Without dead ends: 692 [2022-11-16 11:17:29,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:17:29,199 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 1285 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:29,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1285 Valid, 1555 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:17:29,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2022-11-16 11:17:29,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 276. [2022-11-16 11:17:29,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 269 states have (on average 1.3308550185873607) internal successors, (358), 275 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:29,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 358 transitions. [2022-11-16 11:17:29,349 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 358 transitions. Word has length 67 [2022-11-16 11:17:29,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:29,349 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 358 transitions. [2022-11-16 11:17:29,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:29,349 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 358 transitions. [2022-11-16 11:17:29,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-16 11:17:29,350 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:29,351 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:29,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:17:29,351 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:29,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:29,352 INFO L85 PathProgramCache]: Analyzing trace with hash -827796874, now seen corresponding path program 1 times [2022-11-16 11:17:29,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:29,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070329370] [2022-11-16 11:17:29,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:29,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:30,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:30,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:30,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070329370] [2022-11-16 11:17:30,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070329370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:30,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:30,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-16 11:17:30,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047507556] [2022-11-16 11:17:30,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:30,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:17:30,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:30,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:17:30,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:17:30,657 INFO L87 Difference]: Start difference. First operand 276 states and 358 transitions. Second operand has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:33,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:33,076 INFO L93 Difference]: Finished difference Result 703 states and 941 transitions. [2022-11-16 11:17:33,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:17:33,077 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-16 11:17:33,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:33,079 INFO L225 Difference]: With dead ends: 703 [2022-11-16 11:17:33,080 INFO L226 Difference]: Without dead ends: 593 [2022-11-16 11:17:33,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2022-11-16 11:17:33,081 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 2110 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2110 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:33,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2110 Valid, 1790 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 11:17:33,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-11-16 11:17:33,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 274. [2022-11-16 11:17:33,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 267 states have (on average 1.3258426966292134) internal successors, (354), 273 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:33,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 354 transitions. [2022-11-16 11:17:33,225 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 354 transitions. Word has length 67 [2022-11-16 11:17:33,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:33,226 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 354 transitions. [2022-11-16 11:17:33,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:33,226 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 354 transitions. [2022-11-16 11:17:33,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-16 11:17:33,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:33,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:33,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:17:33,231 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)] === [2022-11-16 11:17:33,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:33,232 INFO L85 PathProgramCache]: Analyzing trace with hash 455689729, now seen corresponding path program 1 times [2022-11-16 11:17:33,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:33,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677007975] [2022-11-16 11:17:33,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:33,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:34,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:34,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:34,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677007975] [2022-11-16 11:17:34,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677007975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:34,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:34,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-16 11:17:34,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443230292] [2022-11-16 11:17:34,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:34,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:17:34,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:34,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:17:34,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:17:34,756 INFO L87 Difference]: Start difference. First operand 274 states and 354 transitions. Second operand has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:37,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:37,953 INFO L93 Difference]: Finished difference Result 649 states and 855 transitions. [2022-11-16 11:17:37,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:17:37,954 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-16 11:17:37,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:37,956 INFO L225 Difference]: With dead ends: 649 [2022-11-16 11:17:37,957 INFO L226 Difference]: Without dead ends: 645 [2022-11-16 11:17:37,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=247, Invalid=875, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:17:37,958 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 1548 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:37,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1548 Valid, 2482 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:17:37,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2022-11-16 11:17:38,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 280. [2022-11-16 11:17:38,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 273 states have (on average 1.326007326007326) internal successors, (362), 279 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:38,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 362 transitions. [2022-11-16 11:17:38,073 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 362 transitions. Word has length 67 [2022-11-16 11:17:38,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:38,073 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 362 transitions. [2022-11-16 11:17:38,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:38,074 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 362 transitions. [2022-11-16 11:17:38,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-16 11:17:38,075 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:38,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:38,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:17:38,075 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:38,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:38,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1324827419, now seen corresponding path program 1 times [2022-11-16 11:17:38,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:38,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379761710] [2022-11-16 11:17:38,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:38,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:39,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:39,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:39,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379761710] [2022-11-16 11:17:39,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379761710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:39,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:39,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-11-16 11:17:39,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037729755] [2022-11-16 11:17:39,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:39,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-16 11:17:39,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:39,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-16 11:17:39,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:17:39,606 INFO L87 Difference]: Start difference. First operand 280 states and 362 transitions. Second operand has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 23 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:42,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:42,495 INFO L93 Difference]: Finished difference Result 404 states and 536 transitions. [2022-11-16 11:17:42,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 11:17:42,496 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 23 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-16 11:17:42,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:42,497 INFO L225 Difference]: With dead ends: 404 [2022-11-16 11:17:42,498 INFO L226 Difference]: Without dead ends: 291 [2022-11-16 11:17:42,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=287, Invalid=1519, Unknown=0, NotChecked=0, Total=1806 [2022-11-16 11:17:42,500 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 449 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 2701 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:42,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 2701 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:17:42,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-11-16 11:17:42,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 279. [2022-11-16 11:17:42,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 272 states have (on average 1.3198529411764706) internal successors, (359), 278 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:42,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 359 transitions. [2022-11-16 11:17:42,698 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 359 transitions. Word has length 67 [2022-11-16 11:17:42,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:42,699 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 359 transitions. [2022-11-16 11:17:42,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 23 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:42,699 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 359 transitions. [2022-11-16 11:17:42,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-16 11:17:42,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:42,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:42,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:17:42,701 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)] === [2022-11-16 11:17:42,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:42,702 INFO L85 PathProgramCache]: Analyzing trace with hash -922376210, now seen corresponding path program 1 times [2022-11-16 11:17:42,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:42,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347142179] [2022-11-16 11:17:42,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:42,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:43,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:43,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:43,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347142179] [2022-11-16 11:17:43,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347142179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:43,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:43,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:17:43,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146094375] [2022-11-16 11:17:43,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:43,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:17:43,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:43,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:17:43,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:17:43,539 INFO L87 Difference]: Start difference. First operand 279 states and 359 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 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) [2022-11-16 11:17:45,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:45,134 INFO L93 Difference]: Finished difference Result 818 states and 1107 transitions. [2022-11-16 11:17:45,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:17:45,134 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 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 [2022-11-16 11:17:45,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:45,138 INFO L225 Difference]: With dead ends: 818 [2022-11-16 11:17:45,138 INFO L226 Difference]: Without dead ends: 708 [2022-11-16 11:17:45,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:17:45,140 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 1168 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:45,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 1554 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:17:45,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2022-11-16 11:17:45,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 271. [2022-11-16 11:17:45,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 265 states have (on average 1.3132075471698113) internal successors, (348), 270 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:45,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 348 transitions. [2022-11-16 11:17:45,291 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 348 transitions. Word has length 68 [2022-11-16 11:17:45,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:45,291 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 348 transitions. [2022-11-16 11:17:45,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 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) [2022-11-16 11:17:45,292 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 348 transitions. [2022-11-16 11:17:45,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-16 11:17:45,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:45,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:45,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:17:45,294 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:45,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:45,294 INFO L85 PathProgramCache]: Analyzing trace with hash 361110393, now seen corresponding path program 1 times [2022-11-16 11:17:45,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:45,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210133469] [2022-11-16 11:17:45,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:45,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:46,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:46,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:46,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210133469] [2022-11-16 11:17:46,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210133469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:46,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:46,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-16 11:17:46,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076232889] [2022-11-16 11:17:46,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:46,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:17:46,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:46,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:17:46,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:17:46,327 INFO L87 Difference]: Start difference. First operand 271 states and 348 transitions. Second operand has 16 states, 16 states have (on average 4.25) internal successors, (68), 16 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) [2022-11-16 11:17:49,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:49,102 INFO L93 Difference]: Finished difference Result 604 states and 801 transitions. [2022-11-16 11:17:49,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:17:49,102 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 16 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 [2022-11-16 11:17:49,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:49,105 INFO L225 Difference]: With dead ends: 604 [2022-11-16 11:17:49,105 INFO L226 Difference]: Without dead ends: 600 [2022-11-16 11:17:49,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=215, Invalid=715, Unknown=0, NotChecked=0, Total=930 [2022-11-16 11:17:49,106 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 1704 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 2251 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:49,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1704 Valid, 2251 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 923 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 11:17:49,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-11-16 11:17:49,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 271. [2022-11-16 11:17:49,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 265 states have (on average 1.3132075471698113) internal successors, (348), 270 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:49,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 348 transitions. [2022-11-16 11:17:49,226 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 348 transitions. Word has length 68 [2022-11-16 11:17:49,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:49,226 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 348 transitions. [2022-11-16 11:17:49,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 16 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) [2022-11-16 11:17:49,226 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 348 transitions. [2022-11-16 11:17:49,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-16 11:17:49,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:49,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:49,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 11:17:49,227 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:49,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:49,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1419406755, now seen corresponding path program 1 times [2022-11-16 11:17:49,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:49,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278480098] [2022-11-16 11:17:49,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:49,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:49,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:50,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:50,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:50,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278480098] [2022-11-16 11:17:50,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278480098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:50,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:50,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:17:50,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597811880] [2022-11-16 11:17:50,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:50,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 11:17:50,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:50,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 11:17:50,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:17:50,159 INFO L87 Difference]: Start difference. First operand 271 states and 348 transitions. Second operand has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 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) [2022-11-16 11:17:51,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:51,512 INFO L93 Difference]: Finished difference Result 550 states and 739 transitions. [2022-11-16 11:17:51,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:17:51,513 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 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 [2022-11-16 11:17:51,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:51,515 INFO L225 Difference]: With dead ends: 550 [2022-11-16 11:17:51,515 INFO L226 Difference]: Without dead ends: 405 [2022-11-16 11:17:51,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:17:51,517 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 424 mSDsluCounter, 1863 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:51,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 2175 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:17:51,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-11-16 11:17:51,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 262. [2022-11-16 11:17:51,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 256 states have (on average 1.3046875) internal successors, (334), 261 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:51,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 334 transitions. [2022-11-16 11:17:51,675 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 334 transitions. Word has length 68 [2022-11-16 11:17:51,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:51,675 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 334 transitions. [2022-11-16 11:17:51,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 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) [2022-11-16 11:17:51,676 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 334 transitions. [2022-11-16 11:17:51,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-16 11:17:51,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:51,677 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:51,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 11:17:51,677 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:51,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:51,678 INFO L85 PathProgramCache]: Analyzing trace with hash 823611388, now seen corresponding path program 1 times [2022-11-16 11:17:51,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:51,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231633844] [2022-11-16 11:17:51,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:51,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:51,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:51,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:51,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231633844] [2022-11-16 11:17:51,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231633844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:51,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:51,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:17:51,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954813849] [2022-11-16 11:17:51,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:51,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:17:51,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:51,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:17:51,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:17:51,969 INFO L87 Difference]: Start difference. First operand 262 states and 334 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 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) [2022-11-16 11:17:52,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:52,838 INFO L93 Difference]: Finished difference Result 419 states and 546 transitions. [2022-11-16 11:17:52,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:17:52,839 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 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 [2022-11-16 11:17:52,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:52,841 INFO L225 Difference]: With dead ends: 419 [2022-11-16 11:17:52,841 INFO L226 Difference]: Without dead ends: 412 [2022-11-16 11:17:52,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:17:52,845 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 1177 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:52,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 561 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:17:52,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-11-16 11:17:53,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 262. [2022-11-16 11:17:53,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 256 states have (on average 1.30078125) internal successors, (333), 261 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:53,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 333 transitions. [2022-11-16 11:17:53,023 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 333 transitions. Word has length 68 [2022-11-16 11:17:53,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:53,024 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 333 transitions. [2022-11-16 11:17:53,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 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) [2022-11-16 11:17:53,024 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 333 transitions. [2022-11-16 11:17:53,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-16 11:17:53,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:53,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:53,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 11:17:53,026 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:53,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:53,027 INFO L85 PathProgramCache]: Analyzing trace with hash 520441226, now seen corresponding path program 1 times [2022-11-16 11:17:53,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:53,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863549699] [2022-11-16 11:17:53,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:53,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:53,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:53,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:53,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863549699] [2022-11-16 11:17:53,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863549699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:53,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:53,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:17:53,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424453996] [2022-11-16 11:17:53,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:53,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:17:53,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:53,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:17:53,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:17:53,296 INFO L87 Difference]: Start difference. First operand 262 states and 333 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 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) [2022-11-16 11:17:54,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:54,154 INFO L93 Difference]: Finished difference Result 564 states and 755 transitions. [2022-11-16 11:17:54,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:17:54,156 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 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 [2022-11-16 11:17:54,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:54,158 INFO L225 Difference]: With dead ends: 564 [2022-11-16 11:17:54,158 INFO L226 Difference]: Without dead ends: 428 [2022-11-16 11:17:54,159 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 [2022-11-16 11:17:54,160 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 770 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:54,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 674 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:17:54,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-11-16 11:17:54,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 262. [2022-11-16 11:17:54,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 256 states have (on average 1.29296875) internal successors, (331), 261 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:54,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 331 transitions. [2022-11-16 11:17:54,315 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 331 transitions. Word has length 68 [2022-11-16 11:17:54,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:54,316 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 331 transitions. [2022-11-16 11:17:54,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 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) [2022-11-16 11:17:54,316 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 331 transitions. [2022-11-16 11:17:54,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-16 11:17:54,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:54,318 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:54,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 11:17:54,318 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:54,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:54,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1956990499, now seen corresponding path program 1 times [2022-11-16 11:17:54,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:54,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174515362] [2022-11-16 11:17:54,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:54,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:54,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:54,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:54,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174515362] [2022-11-16 11:17:54,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174515362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:54,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:54,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:17:54,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723774028] [2022-11-16 11:17:54,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:54,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:17:54,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:54,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:17:54,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:17:54,584 INFO L87 Difference]: Start difference. First operand 262 states and 331 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 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) [2022-11-16 11:17:55,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:55,484 INFO L93 Difference]: Finished difference Result 419 states and 543 transitions. [2022-11-16 11:17:55,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:17:55,484 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 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 [2022-11-16 11:17:55,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:55,487 INFO L225 Difference]: With dead ends: 419 [2022-11-16 11:17:55,487 INFO L226 Difference]: Without dead ends: 412 [2022-11-16 11:17:55,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:17:55,488 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 870 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:55,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 775 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:17:55,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-11-16 11:17:55,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 262. [2022-11-16 11:17:55,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 256 states have (on average 1.28515625) internal successors, (329), 261 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:55,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 329 transitions. [2022-11-16 11:17:55,634 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 329 transitions. Word has length 68 [2022-11-16 11:17:55,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:55,635 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 329 transitions. [2022-11-16 11:17:55,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 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) [2022-11-16 11:17:55,635 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 329 transitions. [2022-11-16 11:17:55,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-16 11:17:55,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:55,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:55,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 11:17:55,637 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:55,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:55,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1580596319, now seen corresponding path program 1 times [2022-11-16 11:17:55,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:55,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54790114] [2022-11-16 11:17:55,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:55,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:56,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:56,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:56,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54790114] [2022-11-16 11:17:56,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54790114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:56,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:56,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:17:56,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070073775] [2022-11-16 11:17:56,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:56,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:17:56,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:56,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:17:56,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:17:56,236 INFO L87 Difference]: Start difference. First operand 262 states and 329 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 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) [2022-11-16 11:17:57,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:57,324 INFO L93 Difference]: Finished difference Result 424 states and 545 transitions. [2022-11-16 11:17:57,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:17:57,324 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 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 [2022-11-16 11:17:57,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:57,327 INFO L225 Difference]: With dead ends: 424 [2022-11-16 11:17:57,327 INFO L226 Difference]: Without dead ends: 420 [2022-11-16 11:17:57,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:17:57,328 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 1010 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:57,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 1240 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:17:57,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-11-16 11:17:57,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 252. [2022-11-16 11:17:57,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.2874493927125505) internal successors, (318), 251 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:57,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 318 transitions. [2022-11-16 11:17:57,450 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 318 transitions. Word has length 68 [2022-11-16 11:17:57,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:57,450 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 318 transitions. [2022-11-16 11:17:57,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 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) [2022-11-16 11:17:57,451 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 318 transitions. [2022-11-16 11:17:57,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-16 11:17:57,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:57,452 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:57,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 11:17:57,453 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:57,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:57,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1417579687, now seen corresponding path program 1 times [2022-11-16 11:17:57,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:57,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909648620] [2022-11-16 11:17:57,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:57,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:58,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:58,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:58,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909648620] [2022-11-16 11:17:58,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909648620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:58,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:58,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:17:58,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626803310] [2022-11-16 11:17:58,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:58,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:17:58,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:58,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:17:58,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:17:58,086 INFO L87 Difference]: Start difference. First operand 252 states and 318 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 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) [2022-11-16 11:17:59,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:17:59,056 INFO L93 Difference]: Finished difference Result 414 states and 541 transitions. [2022-11-16 11:17:59,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:17:59,056 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 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 [2022-11-16 11:17:59,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:17:59,059 INFO L225 Difference]: With dead ends: 414 [2022-11-16 11:17:59,059 INFO L226 Difference]: Without dead ends: 386 [2022-11-16 11:17:59,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:17:59,060 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 702 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:17:59,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 1589 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:17:59,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-11-16 11:17:59,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 224. [2022-11-16 11:17:59,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 221 states have (on average 1.3031674208144797) internal successors, (288), 223 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) [2022-11-16 11:17:59,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 288 transitions. [2022-11-16 11:17:59,231 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 288 transitions. Word has length 68 [2022-11-16 11:17:59,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:17:59,232 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 288 transitions. [2022-11-16 11:17:59,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 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) [2022-11-16 11:17:59,232 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 288 transitions. [2022-11-16 11:17:59,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-16 11:17:59,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:17:59,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:17:59,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 11:17:59,237 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:17:59,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:59,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1997555533, now seen corresponding path program 1 times [2022-11-16 11:17:59,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:59,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125255486] [2022-11-16 11:17:59,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:59,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:59,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:59,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:59,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125255486] [2022-11-16 11:17:59,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125255486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:59,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:59,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:17:59,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629842618] [2022-11-16 11:17:59,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:59,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:17:59,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:59,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:17:59,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:17:59,972 INFO L87 Difference]: Start difference. First operand 224 states and 288 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:02,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:02,304 INFO L93 Difference]: Finished difference Result 1052 states and 1485 transitions. [2022-11-16 11:18:02,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:18:02,305 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-11-16 11:18:02,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:18:02,309 INFO L225 Difference]: With dead ends: 1052 [2022-11-16 11:18:02,309 INFO L226 Difference]: Without dead ends: 1046 [2022-11-16 11:18:02,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:18:02,311 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 1226 mSDsluCounter, 2462 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:18:02,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1226 Valid, 2834 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 11:18:02,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2022-11-16 11:18:02,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 218. [2022-11-16 11:18:02,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 216 states have (on average 1.3009259259259258) internal successors, (281), 217 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:02,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 281 transitions. [2022-11-16 11:18:02,482 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 281 transitions. Word has length 70 [2022-11-16 11:18:02,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:18:02,482 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 281 transitions. [2022-11-16 11:18:02,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:02,483 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 281 transitions. [2022-11-16 11:18:02,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-16 11:18:02,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:02,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:02,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-16 11:18:02,484 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:18:02,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:02,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1662348756, now seen corresponding path program 1 times [2022-11-16 11:18:02,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:02,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548564960] [2022-11-16 11:18:02,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:02,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:03,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:18:03,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:03,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548564960] [2022-11-16 11:18:03,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548564960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:03,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:03,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-16 11:18:03,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290164022] [2022-11-16 11:18:03,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:03,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 11:18:03,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:03,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 11:18:03,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:18:03,892 INFO L87 Difference]: Start difference. First operand 218 states and 281 transitions. Second operand has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 22 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:06,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:06,210 INFO L93 Difference]: Finished difference Result 250 states and 314 transitions. [2022-11-16 11:18:06,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:18:06,211 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 22 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-11-16 11:18:06,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:18:06,213 INFO L225 Difference]: With dead ends: 250 [2022-11-16 11:18:06,213 INFO L226 Difference]: Without dead ends: 242 [2022-11-16 11:18:06,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=282, Invalid=1358, Unknown=0, NotChecked=0, Total=1640 [2022-11-16 11:18:06,215 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 330 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1822 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:18:06,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 1822 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 11:18:06,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-11-16 11:18:06,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 227. [2022-11-16 11:18:06,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 225 states have (on average 1.2977777777777777) internal successors, (292), 226 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:06,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 292 transitions. [2022-11-16 11:18:06,341 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 292 transitions. Word has length 70 [2022-11-16 11:18:06,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:18:06,342 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 292 transitions. [2022-11-16 11:18:06,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 22 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:06,342 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 292 transitions. [2022-11-16 11:18:06,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-16 11:18:06,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:06,343 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:06,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-16 11:18:06,344 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:18:06,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:06,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1776801356, now seen corresponding path program 1 times [2022-11-16 11:18:06,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:06,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110771525] [2022-11-16 11:18:06,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:06,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:06,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:18:06,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:06,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110771525] [2022-11-16 11:18:06,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110771525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:06,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:06,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:18:06,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082098383] [2022-11-16 11:18:06,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:06,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:18:06,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:06,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:18:06,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:18:06,983 INFO L87 Difference]: Start difference. First operand 227 states and 292 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:08,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:08,377 INFO L93 Difference]: Finished difference Result 629 states and 864 transitions. [2022-11-16 11:18:08,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:18:08,378 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-11-16 11:18:08,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:18:08,381 INFO L225 Difference]: With dead ends: 629 [2022-11-16 11:18:08,381 INFO L226 Difference]: Without dead ends: 614 [2022-11-16 11:18:08,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:18:08,382 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 931 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 1692 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:18:08,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [931 Valid, 1692 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:18:08,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2022-11-16 11:18:08,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 206. [2022-11-16 11:18:08,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 205 states have (on average 1.302439024390244) internal successors, (267), 205 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) [2022-11-16 11:18:08,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 267 transitions. [2022-11-16 11:18:08,559 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 267 transitions. Word has length 71 [2022-11-16 11:18:08,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:18:08,559 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 267 transitions. [2022-11-16 11:18:08,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:08,559 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 267 transitions. [2022-11-16 11:18:08,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-16 11:18:08,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:08,560 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] [2022-11-16 11:18:08,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-16 11:18:08,561 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:18:08,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:08,561 INFO L85 PathProgramCache]: Analyzing trace with hash 161471129, now seen corresponding path program 1 times [2022-11-16 11:18:08,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:08,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323246378] [2022-11-16 11:18:08,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:08,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:08,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:18:08,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:08,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323246378] [2022-11-16 11:18:08,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323246378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:08,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:08,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:18:08,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272271798] [2022-11-16 11:18:08,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:08,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:18:08,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:08,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:18:08,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:18:08,750 INFO L87 Difference]: Start difference. First operand 206 states and 267 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) [2022-11-16 11:18:09,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:09,937 INFO L93 Difference]: Finished difference Result 1054 states and 1531 transitions. [2022-11-16 11:18:09,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:18:09,937 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 [2022-11-16 11:18:09,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:18:09,942 INFO L225 Difference]: With dead ends: 1054 [2022-11-16 11:18:09,942 INFO L226 Difference]: Without dead ends: 948 [2022-11-16 11:18:09,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:18:09,944 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 843 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:18:09,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 1274 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:18:09,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2022-11-16 11:18:10,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 310. [2022-11-16 11:18:10,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 309 states have (on average 1.3592233009708738) internal successors, (420), 309 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:10,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 420 transitions. [2022-11-16 11:18:10,261 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 420 transitions. Word has length 93 [2022-11-16 11:18:10,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:18:10,262 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 420 transitions. [2022-11-16 11:18:10,262 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) [2022-11-16 11:18:10,262 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 420 transitions. [2022-11-16 11:18:10,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:18:10,263 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:10,263 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:10,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-16 11:18:10,264 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:18:10,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:10,264 INFO L85 PathProgramCache]: Analyzing trace with hash -880942767, now seen corresponding path program 1 times [2022-11-16 11:18:10,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:10,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455375572] [2022-11-16 11:18:10,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:10,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:10,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:18:10,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:10,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455375572] [2022-11-16 11:18:10,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455375572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:10,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:10,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:18:10,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369644809] [2022-11-16 11:18:10,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:10,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:18:10,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:10,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:18:10,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:18:10,416 INFO L87 Difference]: Start difference. First operand 310 states and 420 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2022-11-16 11:18:11,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:11,510 INFO L93 Difference]: Finished difference Result 1256 states and 1818 transitions. [2022-11-16 11:18:11,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:18:11,511 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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 [2022-11-16 11:18:11,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:18:11,513 INFO L225 Difference]: With dead ends: 1256 [2022-11-16 11:18:11,513 INFO L226 Difference]: Without dead ends: 1046 [2022-11-16 11:18:11,514 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 [2022-11-16 11:18:11,514 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 649 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:18:11,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 777 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:18:11,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2022-11-16 11:18:12,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 518. [2022-11-16 11:18:12,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 517 states have (on average 1.4081237911025144) internal successors, (728), 517 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:12,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 728 transitions. [2022-11-16 11:18:12,059 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 728 transitions. Word has length 95 [2022-11-16 11:18:12,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:18:12,059 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 728 transitions. [2022-11-16 11:18:12,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2022-11-16 11:18:12,059 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 728 transitions. [2022-11-16 11:18:12,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:18:12,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:12,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:12,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-16 11:18:12,061 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:18:12,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:12,062 INFO L85 PathProgramCache]: Analyzing trace with hash 284809815, now seen corresponding path program 1 times [2022-11-16 11:18:12,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:12,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395510865] [2022-11-16 11:18:12,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:12,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:12,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:18:12,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:12,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395510865] [2022-11-16 11:18:12,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395510865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:12,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:12,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:18:12,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024016247] [2022-11-16 11:18:12,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:12,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:18:12,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:12,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:18:12,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:18:12,224 INFO L87 Difference]: Start difference. First operand 518 states and 728 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2022-11-16 11:18:13,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:13,462 INFO L93 Difference]: Finished difference Result 1464 states and 2126 transitions. [2022-11-16 11:18:13,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:18:13,462 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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 [2022-11-16 11:18:13,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:18:13,467 INFO L225 Difference]: With dead ends: 1464 [2022-11-16 11:18:13,468 INFO L226 Difference]: Without dead ends: 1254 [2022-11-16 11:18:13,468 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 [2022-11-16 11:18:13,469 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 650 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:18:13,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 708 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:18:13,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2022-11-16 11:18:14,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 830. [2022-11-16 11:18:14,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 829 states have (on average 1.4342581423401688) internal successors, (1189), 829 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:14,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1189 transitions. [2022-11-16 11:18:14,209 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1189 transitions. Word has length 95 [2022-11-16 11:18:14,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:18:14,209 INFO L495 AbstractCegarLoop]: Abstraction has 830 states and 1189 transitions. [2022-11-16 11:18:14,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2022-11-16 11:18:14,209 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1189 transitions. [2022-11-16 11:18:14,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:18:14,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:14,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:14,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-16 11:18:14,211 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:18:14,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:14,211 INFO L85 PathProgramCache]: Analyzing trace with hash -736748582, now seen corresponding path program 1 times [2022-11-16 11:18:14,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:14,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663827066] [2022-11-16 11:18:14,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:14,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:14,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:18:14,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:14,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663827066] [2022-11-16 11:18:14,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663827066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:14,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:14,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:18:14,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328310190] [2022-11-16 11:18:14,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:14,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:18:14,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:14,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:18:14,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:18:14,458 INFO L87 Difference]: Start difference. First operand 830 states and 1189 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2022-11-16 11:18:15,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:15,491 INFO L93 Difference]: Finished difference Result 1562 states and 2270 transitions. [2022-11-16 11:18:15,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:18:15,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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 [2022-11-16 11:18:15,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:18:15,496 INFO L225 Difference]: With dead ends: 1562 [2022-11-16 11:18:15,496 INFO L226 Difference]: Without dead ends: 832 [2022-11-16 11:18:15,497 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 [2022-11-16 11:18:15,498 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 486 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:18:15,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 378 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:18:15,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2022-11-16 11:18:16,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 830. [2022-11-16 11:18:16,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 829 states have (on average 1.4246079613992761) internal successors, (1181), 829 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:16,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1181 transitions. [2022-11-16 11:18:16,353 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1181 transitions. Word has length 95 [2022-11-16 11:18:16,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:18:16,353 INFO L495 AbstractCegarLoop]: Abstraction has 830 states and 1181 transitions. [2022-11-16 11:18:16,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2022-11-16 11:18:16,353 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1181 transitions. [2022-11-16 11:18:16,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:18:16,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:16,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:16,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-16 11:18:16,356 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:18:16,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:16,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1506041575, now seen corresponding path program 1 times [2022-11-16 11:18:16,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:16,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496514703] [2022-11-16 11:18:16,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:16,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:16,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:18:16,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:16,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496514703] [2022-11-16 11:18:16,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496514703] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:16,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:16,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:18:16,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823960584] [2022-11-16 11:18:16,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:16,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:18:16,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:16,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:18:16,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:18:16,425 INFO L87 Difference]: Start difference. First operand 830 states and 1181 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) [2022-11-16 11:18:17,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:17,993 INFO L93 Difference]: Finished difference Result 2200 states and 3175 transitions. [2022-11-16 11:18:17,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:18:17,994 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 [2022-11-16 11:18:17,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:18:18,003 INFO L225 Difference]: With dead ends: 2200 [2022-11-16 11:18:18,003 INFO L226 Difference]: Without dead ends: 1470 [2022-11-16 11:18:18,004 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 [2022-11-16 11:18:18,005 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 67 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:18:18,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 368 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:18:18,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2022-11-16 11:18:19,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1468. [2022-11-16 11:18:19,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1467 states have (on average 1.4137695978186775) internal successors, (2074), 1467 states have internal predecessors, (2074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:19,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 2074 transitions. [2022-11-16 11:18:19,474 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 2074 transitions. Word has length 95 [2022-11-16 11:18:19,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:18:19,475 INFO L495 AbstractCegarLoop]: Abstraction has 1468 states and 2074 transitions. [2022-11-16 11:18:19,475 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) [2022-11-16 11:18:19,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 2074 transitions. [2022-11-16 11:18:19,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:18:19,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:19,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:19,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-16 11:18:19,477 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:18:19,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:19,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1675387619, now seen corresponding path program 1 times [2022-11-16 11:18:19,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:19,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969643110] [2022-11-16 11:18:19,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:19,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:19,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:18:19,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:19,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969643110] [2022-11-16 11:18:19,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969643110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:19,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:19,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:18:19,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116483926] [2022-11-16 11:18:19,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:19,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:18:19,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:19,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:18:19,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:18:19,676 INFO L87 Difference]: Start difference. First operand 1468 states and 2074 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2022-11-16 11:18:22,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:22,798 INFO L93 Difference]: Finished difference Result 3038 states and 4335 transitions. [2022-11-16 11:18:22,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:18:22,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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 [2022-11-16 11:18:22,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:18:22,806 INFO L225 Difference]: With dead ends: 3038 [2022-11-16 11:18:22,806 INFO L226 Difference]: Without dead ends: 2646 [2022-11-16 11:18:22,807 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 [2022-11-16 11:18:22,808 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 617 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:18:22,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 753 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:18:22,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2022-11-16 11:18:24,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 1858. [2022-11-16 11:18:24,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1858 states, 1857 states have (on average 1.4184168012924072) internal successors, (2634), 1857 states have internal predecessors, (2634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:24,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 2634 transitions. [2022-11-16 11:18:24,757 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 2634 transitions. Word has length 95 [2022-11-16 11:18:24,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:18:24,758 INFO L495 AbstractCegarLoop]: Abstraction has 1858 states and 2634 transitions. [2022-11-16 11:18:24,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2022-11-16 11:18:24,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 2634 transitions. [2022-11-16 11:18:24,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 11:18:24,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:24,760 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:24,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-16 11:18:24,761 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:18:24,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:24,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1554031907, now seen corresponding path program 1 times [2022-11-16 11:18:24,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:24,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844386802] [2022-11-16 11:18:24,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:24,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:24,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:18:24,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:24,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844386802] [2022-11-16 11:18:24,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844386802] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:24,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:24,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:18:24,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877196246] [2022-11-16 11:18:24,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:24,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:18:24,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:24,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:18:24,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:18:24,930 INFO L87 Difference]: Start difference. First operand 1858 states and 2634 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2022-11-16 11:18:28,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:28,200 INFO L93 Difference]: Finished difference Result 3428 states and 4895 transitions. [2022-11-16 11:18:28,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:18:28,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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 [2022-11-16 11:18:28,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:18:28,212 INFO L225 Difference]: With dead ends: 3428 [2022-11-16 11:18:28,212 INFO L226 Difference]: Without dead ends: 3036 [2022-11-16 11:18:28,214 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 [2022-11-16 11:18:28,214 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 584 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:18:28,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 816 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:18:28,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3036 states. [2022-11-16 11:18:30,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3036 to 2248. [2022-11-16 11:18:30,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2248 states, 2247 states have (on average 1.4214508233199823) internal successors, (3194), 2247 states have internal predecessors, (3194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:30,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2248 states to 2248 states and 3194 transitions. [2022-11-16 11:18:30,562 INFO L78 Accepts]: Start accepts. Automaton has 2248 states and 3194 transitions. Word has length 95 [2022-11-16 11:18:30,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:18:30,562 INFO L495 AbstractCegarLoop]: Abstraction has 2248 states and 3194 transitions. [2022-11-16 11:18:30,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2022-11-16 11:18:30,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2248 states and 3194 transitions. [2022-11-16 11:18:30,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-16 11:18:30,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:30,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:30,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-16 11:18:30,566 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:18:30,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:30,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1423537109, now seen corresponding path program 1 times [2022-11-16 11:18:30,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:30,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784579354] [2022-11-16 11:18:30,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:30,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:30,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:18:30,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:30,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784579354] [2022-11-16 11:18:30,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784579354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:30,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:30,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:18:30,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473247280] [2022-11-16 11:18:30,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:30,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:18:30,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:30,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:18:30,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:18:30,695 INFO L87 Difference]: Start difference. First operand 2248 states and 3194 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) [2022-11-16 11:18:34,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:34,514 INFO L93 Difference]: Finished difference Result 5708 states and 8130 transitions. [2022-11-16 11:18:34,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:18:34,515 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 [2022-11-16 11:18:34,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:18:34,534 INFO L225 Difference]: With dead ends: 5708 [2022-11-16 11:18:34,535 INFO L226 Difference]: Without dead ends: 3560 [2022-11-16 11:18:34,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:18:34,540 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 78 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 343 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 [2022-11-16 11:18:34,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 343 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:18:34,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3560 states. [2022-11-16 11:18:37,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3560 to 3382. [2022-11-16 11:18:37,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3382 states, 3381 states have (on average 1.4072759538598048) internal successors, (4758), 3381 states have internal predecessors, (4758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:37,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 4758 transitions. [2022-11-16 11:18:37,940 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 4758 transitions. Word has length 96 [2022-11-16 11:18:37,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:18:37,941 INFO L495 AbstractCegarLoop]: Abstraction has 3382 states and 4758 transitions. [2022-11-16 11:18:37,941 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) [2022-11-16 11:18:37,941 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 4758 transitions. [2022-11-16 11:18:37,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:18:37,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:37,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:37,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-16 11:18:37,944 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:18:37,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:37,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1571382276, now seen corresponding path program 1 times [2022-11-16 11:18:37,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:37,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257707491] [2022-11-16 11:18:37,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:37,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:38,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:18:38,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:38,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257707491] [2022-11-16 11:18:38,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257707491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:38,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:38,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:18:38,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869097063] [2022-11-16 11:18:38,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:38,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:18:38,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:38,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:18:38,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:18:38,111 INFO L87 Difference]: Start difference. First operand 3382 states and 4758 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 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) [2022-11-16 11:18:44,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:44,760 INFO L93 Difference]: Finished difference Result 9682 states and 13594 transitions. [2022-11-16 11:18:44,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:18:44,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 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 [2022-11-16 11:18:44,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:18:44,773 INFO L225 Difference]: With dead ends: 9682 [2022-11-16 11:18:44,774 INFO L226 Difference]: Without dead ends: 6400 [2022-11-16 11:18:44,778 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 [2022-11-16 11:18:44,779 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 71 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 343 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 [2022-11-16 11:18:44,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 343 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:18:44,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6400 states. [2022-11-16 11:18:51,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6400 to 6134. [2022-11-16 11:18:51,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6134 states, 6133 states have (on average 1.393771400619599) internal successors, (8548), 6133 states have internal predecessors, (8548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:51,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6134 states to 6134 states and 8548 transitions. [2022-11-16 11:18:51,557 INFO L78 Accepts]: Start accepts. Automaton has 6134 states and 8548 transitions. Word has length 97 [2022-11-16 11:18:51,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:18:51,557 INFO L495 AbstractCegarLoop]: Abstraction has 6134 states and 8548 transitions. [2022-11-16 11:18:51,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 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) [2022-11-16 11:18:51,558 INFO L276 IsEmpty]: Start isEmpty. Operand 6134 states and 8548 transitions. [2022-11-16 11:18:51,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 11:18:51,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:51,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:51,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-16 11:18:51,560 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:18:51,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:51,561 INFO L85 PathProgramCache]: Analyzing trace with hash 584515800, now seen corresponding path program 1 times [2022-11-16 11:18:51,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:51,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268912803] [2022-11-16 11:18:51,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:51,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:51,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:18:51,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:51,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268912803] [2022-11-16 11:18:51,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268912803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:51,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:51,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:18:51,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907754835] [2022-11-16 11:18:51,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:51,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:18:51,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:51,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:18:51,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:18:51,684 INFO L87 Difference]: Start difference. First operand 6134 states and 8548 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) [2022-11-16 11:19:05,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:19:05,627 INFO L93 Difference]: Finished difference Result 17674 states and 24502 transitions. [2022-11-16 11:19:05,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:19:05,628 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 [2022-11-16 11:19:05,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:19:05,656 INFO L225 Difference]: With dead ends: 17674 [2022-11-16 11:19:05,656 INFO L226 Difference]: Without dead ends: 11640 [2022-11-16 11:19:05,663 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 [2022-11-16 11:19:05,663 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 64 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 342 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 [2022-11-16 11:19:05,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 342 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:19:05,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11640 states. [2022-11-16 11:19:18,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11640 to 11110. [2022-11-16 11:19:18,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11110 states, 11109 states have (on average 1.3745611666216582) internal successors, (15270), 11109 states have internal predecessors, (15270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:18,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11110 states to 11110 states and 15270 transitions. [2022-11-16 11:19:18,314 INFO L78 Accepts]: Start accepts. Automaton has 11110 states and 15270 transitions. Word has length 98 [2022-11-16 11:19:18,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:19:18,315 INFO L495 AbstractCegarLoop]: Abstraction has 11110 states and 15270 transitions. [2022-11-16 11:19:18,315 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) [2022-11-16 11:19:18,315 INFO L276 IsEmpty]: Start isEmpty. Operand 11110 states and 15270 transitions. [2022-11-16 11:19:18,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-16 11:19:18,316 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:19:18,316 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:19:18,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-16 11:19:18,317 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:19:18,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:18,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1344323197, now seen corresponding path program 1 times [2022-11-16 11:19:18,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:18,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035943145] [2022-11-16 11:19:18,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:18,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:19:18,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:19:18,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:19:18,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035943145] [2022-11-16 11:19:18,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035943145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:19:18,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:19:18,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:19:18,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993291222] [2022-11-16 11:19:18,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:19:18,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:19:18,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:19:18,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:19:18,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:19:18,446 INFO L87 Difference]: Start difference. First operand 11110 states and 15270 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:19:41,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:19:41,777 INFO L93 Difference]: Finished difference Result 32074 states and 43744 transitions. [2022-11-16 11:19:41,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:19:41,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-11-16 11:19:41,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:19:41,825 INFO L225 Difference]: With dead ends: 32074 [2022-11-16 11:19:41,825 INFO L226 Difference]: Without dead ends: 21064 [2022-11-16 11:19:41,837 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 [2022-11-16 11:19:41,838 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 54 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 340 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 [2022-11-16 11:19:41,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 340 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:19:41,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21064 states. [2022-11-16 11:20:05,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21064 to 20006. [2022-11-16 11:20:05,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20006 states, 20005 states have (on average 1.3495626093476631) internal successors, (26998), 20005 states have internal predecessors, (26998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:20:05,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20006 states to 20006 states and 26998 transitions. [2022-11-16 11:20:05,795 INFO L78 Accepts]: Start accepts. Automaton has 20006 states and 26998 transitions. Word has length 99 [2022-11-16 11:20:05,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:20:05,796 INFO L495 AbstractCegarLoop]: Abstraction has 20006 states and 26998 transitions. [2022-11-16 11:20:05,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:20:05,796 INFO L276 IsEmpty]: Start isEmpty. Operand 20006 states and 26998 transitions. [2022-11-16 11:20:05,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-16 11:20:05,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:20:05,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:20:05,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-16 11:20:05,798 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:20:05,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:20:05,798 INFO L85 PathProgramCache]: Analyzing trace with hash -445596435, now seen corresponding path program 1 times [2022-11-16 11:20:05,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:20:05,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046266565] [2022-11-16 11:20:05,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:20:05,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:20:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:20:06,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:20:06,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:20:06,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046266565] [2022-11-16 11:20:06,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046266565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:20:06,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:20:06,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:20:06,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133170690] [2022-11-16 11:20:06,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:20:06,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:20:06,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:20:06,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:20:06,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:20:06,046 INFO L87 Difference]: Start difference. First operand 20006 states and 26998 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:20:44,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:20:44,033 INFO L93 Difference]: Finished difference Result 31016 states and 41652 transitions. [2022-11-16 11:20:44,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:20:44,034 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-11-16 11:20:44,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:20:44,094 INFO L225 Difference]: With dead ends: 31016 [2022-11-16 11:20:44,094 INFO L226 Difference]: Without dead ends: 31014 [2022-11-16 11:20:44,102 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 [2022-11-16 11:20:44,103 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 259 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:20:44,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 810 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:20:44,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31014 states. [2022-11-16 11:21:07,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31014 to 20486. [2022-11-16 11:21:07,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20486 states, 20485 states have (on average 1.3319990236758603) internal successors, (27286), 20485 states have internal predecessors, (27286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:07,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20486 states to 20486 states and 27286 transitions. [2022-11-16 11:21:07,533 INFO L78 Accepts]: Start accepts. Automaton has 20486 states and 27286 transitions. Word has length 100 [2022-11-16 11:21:07,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:21:07,534 INFO L495 AbstractCegarLoop]: Abstraction has 20486 states and 27286 transitions. [2022-11-16 11:21:07,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:07,534 INFO L276 IsEmpty]: Start isEmpty. Operand 20486 states and 27286 transitions. [2022-11-16 11:21:07,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-16 11:21:07,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:21:07,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:21:07,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-16 11:21:07,536 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:21:07,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:21:07,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1981290545, now seen corresponding path program 1 times [2022-11-16 11:21:07,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:21:07,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511176651] [2022-11-16 11:21:07,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:07,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:21:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:07,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:21:07,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:21:07,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511176651] [2022-11-16 11:21:07,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511176651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:21:07,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:21:07,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:21:07,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305671362] [2022-11-16 11:21:07,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:21:07,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:21:07,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:21:07,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:21:07,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:21:07,601 INFO L87 Difference]: Start difference. First operand 20486 states and 27286 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:31,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:21:31,315 INFO L93 Difference]: Finished difference Result 41514 states and 55328 transitions. [2022-11-16 11:21:31,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:21:31,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-11-16 11:21:31,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:21:31,346 INFO L225 Difference]: With dead ends: 41514 [2022-11-16 11:21:31,347 INFO L226 Difference]: Without dead ends: 21128 [2022-11-16 11:21:31,359 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 [2022-11-16 11:21:31,360 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 87 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:21:31,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 282 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:21:31,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21128 states. [2022-11-16 11:21:55,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21128 to 21126. [2022-11-16 11:21:55,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21126 states, 21125 states have (on average 1.3151242603550295) internal successors, (27782), 21125 states have internal predecessors, (27782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:55,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21126 states to 21126 states and 27782 transitions. [2022-11-16 11:21:55,624 INFO L78 Accepts]: Start accepts. Automaton has 21126 states and 27782 transitions. Word has length 100 [2022-11-16 11:21:55,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:21:55,625 INFO L495 AbstractCegarLoop]: Abstraction has 21126 states and 27782 transitions. [2022-11-16 11:21:55,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:55,625 INFO L276 IsEmpty]: Start isEmpty. Operand 21126 states and 27782 transitions. [2022-11-16 11:21:55,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-16 11:21:55,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:21:55,631 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:21:55,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-16 11:21:55,631 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:21:55,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:21:55,632 INFO L85 PathProgramCache]: Analyzing trace with hash 642240657, now seen corresponding path program 1 times [2022-11-16 11:21:55,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:21:55,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324824737] [2022-11-16 11:21:55,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:55,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:21:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:56,303 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:21:56,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:21:56,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324824737] [2022-11-16 11:21:56,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324824737] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:21:56,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120334038] [2022-11-16 11:21:56,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:56,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:21:56,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3aee75f-cc71-485d-a767-945f35b61ca3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:21:56,309 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3aee75f-cc71-485d-a767-945f35b61ca3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:21:56,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3aee75f-cc71-485d-a767-945f35b61ca3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:21:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:56,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 11:21:56,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:21:57,668 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:21:57,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:21:59,277 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:21:59,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120334038] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:21:59,277 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:21:59,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2022-11-16 11:21:59,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806533207] [2022-11-16 11:21:59,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:21:59,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-16 11:21:59,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:21:59,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-16 11:21:59,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:21:59,281 INFO L87 Difference]: Start difference. First operand 21126 states and 27782 transitions. Second operand has 27 states, 27 states have (on average 11.148148148148149) internal successors, (301), 26 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:20,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:20,765 INFO L93 Difference]: Finished difference Result 339934 states and 435914 transitions. [2022-11-16 11:30:20,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2022-11-16 11:30:20,766 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 11.148148148148149) internal successors, (301), 26 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2022-11-16 11:30:20,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:21,723 INFO L225 Difference]: With dead ends: 339934 [2022-11-16 11:30:21,723 INFO L226 Difference]: Without dead ends: 318908 [2022-11-16 11:30:21,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 385 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65482 ImplicationChecksByTransitivity, 29.6s TimeCoverageRelationStatistics Valid=15532, Invalid=133850, Unknown=0, NotChecked=0, Total=149382 [2022-11-16 11:30:21,902 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 8191 mSDsluCounter, 7440 mSDsCounter, 0 mSdLazyCounter, 6851 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8191 SdHoareTripleChecker+Valid, 7885 SdHoareTripleChecker+Invalid, 6896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 6851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:21,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8191 Valid, 7885 Invalid, 6896 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [45 Valid, 6851 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-11-16 11:30:22,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318908 states.