./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem07_label55.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c09c79-c239-4679-bcf5-0e64ae695872/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c09c79-c239-4679-bcf5-0e64ae695872/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c09c79-c239-4679-bcf5-0e64ae695872/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c09c79-c239-4679-bcf5-0e64ae695872/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label55.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c09c79-c239-4679-bcf5-0e64ae695872/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c09c79-c239-4679-bcf5-0e64ae695872/bin/uautomizer-uyxdKDjOR8 --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 1b8341328e7dd29605b8254004b8f13163a22ca502944b94ab06cd1ff773da6f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 22:04:33,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:04:33,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:04:33,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:04:33,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:04:33,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:04:33,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:04:33,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:04:33,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:04:33,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:04:33,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:04:33,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:04:33,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:04:33,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:04:33,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:04:33,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:04:33,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:04:33,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:04:33,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:04:33,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:04:33,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:04:33,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:04:33,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:04:33,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:04:33,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:04:33,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:04:33,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:04:33,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:04:33,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:04:33,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:04:33,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:04:33,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:04:33,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:04:33,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:04:33,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:04:33,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:04:33,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:04:33,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:04:33,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:04:33,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:04:33,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:04:33,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c09c79-c239-4679-bcf5-0e64ae695872/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 22:04:33,751 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:04:33,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:04:33,752 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:04:33,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:04:33,752 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:04:33,753 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:04:33,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:04:33,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:04:33,754 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:04:33,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:04:33,754 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:04:33,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:04:33,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:04:33,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:04:33,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 22:04:33,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:04:33,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 22:04:33,756 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:04:33,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:04:33,756 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:04:33,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 22:04:33,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:04:33,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:04:33,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:04:33,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:04:33,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:04:33,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:04:33,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 22:04:33,758 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:04:33,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 22:04:33,758 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:04:33,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 22:04:33,758 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:04:33,759 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:04:33,759 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:04:33,759 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a8c09c79-c239-4679-bcf5-0e64ae695872/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c09c79-c239-4679-bcf5-0e64ae695872/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b8341328e7dd29605b8254004b8f13163a22ca502944b94ab06cd1ff773da6f [2022-12-13 22:04:33,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:04:33,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:04:33,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:04:33,988 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:04:33,989 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:04:33,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c09c79-c239-4679-bcf5-0e64ae695872/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/eca-rers2012/Problem07_label55.c [2022-12-13 22:04:36,605 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:04:37,651 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:04:37,652 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c09c79-c239-4679-bcf5-0e64ae695872/sv-benchmarks/c/eca-rers2012/Problem07_label55.c [2022-12-13 22:04:37,786 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c09c79-c239-4679-bcf5-0e64ae695872/bin/uautomizer-uyxdKDjOR8/data/bf7a87596/1a22eaf6687e411d970bbc105d9f828c/FLAG263bcdcc2 [2022-12-13 22:04:37,797 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c09c79-c239-4679-bcf5-0e64ae695872/bin/uautomizer-uyxdKDjOR8/data/bf7a87596/1a22eaf6687e411d970bbc105d9f828c [2022-12-13 22:04:37,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:04:37,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:04:37,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:04:37,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:04:37,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:04:37,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:04:37" (1/1) ... [2022-12-13 22:04:37,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b20921b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:37, skipping insertion in model container [2022-12-13 22:04:37,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:04:37" (1/1) ... [2022-12-13 22:04:37,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:04:38,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:04:48,326 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c09c79-c239-4679-bcf5-0e64ae695872/sv-benchmarks/c/eca-rers2012/Problem07_label55.c[2773417,2773430] [2022-12-13 22:04:48,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:04:48,383 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:04:54,220 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c09c79-c239-4679-bcf5-0e64ae695872/sv-benchmarks/c/eca-rers2012/Problem07_label55.c[2773417,2773430] [2022-12-13 22:04:54,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:04:54,849 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:04:54,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:54 WrapperNode [2022-12-13 22:04:54,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:04:54,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:04:54,850 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:04:54,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:04:54,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:54" (1/1) ... [2022-12-13 22:04:55,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:54" (1/1) ... [2022-12-13 22:04:56,482 INFO L138 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83773 [2022-12-13 22:04:56,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:04:56,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:04:56,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:04:56,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:04:56,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:54" (1/1) ... [2022-12-13 22:04:56,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:54" (1/1) ... [2022-12-13 22:04:56,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:54" (1/1) ... [2022-12-13 22:04:56,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:54" (1/1) ... [2022-12-13 22:04:57,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:54" (1/1) ... [2022-12-13 22:04:57,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:54" (1/1) ... [2022-12-13 22:04:57,486 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:54" (1/1) ... [2022-12-13 22:04:57,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:54" (1/1) ... [2022-12-13 22:04:57,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:04:57,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:04:57,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:04:57,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:04:57,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:54" (1/1) ... [2022-12-13 22:04:57,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:04:57,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c09c79-c239-4679-bcf5-0e64ae695872/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:04:57,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c09c79-c239-4679-bcf5-0e64ae695872/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:04:57,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c09c79-c239-4679-bcf5-0e64ae695872/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:04:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:04:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:04:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:04:57,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:04:58,000 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:04:58,002 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:05:32,055 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:05:32,094 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:05:32,095 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 22:05:32,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:05:32 BoogieIcfgContainer [2022-12-13 22:05:32,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:05:32,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:05:32,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:05:32,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:05:32,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:04:37" (1/3) ... [2022-12-13 22:05:32,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17aa094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:05:32, skipping insertion in model container [2022-12-13 22:05:32,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:04:54" (2/3) ... [2022-12-13 22:05:32,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17aa094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:05:32, skipping insertion in model container [2022-12-13 22:05:32,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:05:32" (3/3) ... [2022-12-13 22:05:32,115 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem07_label55.c [2022-12-13 22:05:32,129 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:05:32,129 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 22:05:32,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:05:32,267 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;@65cd1faf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:05:32,267 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 22:05:32,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 10257 states, 10255 states have (on average 1.9892735251097027) internal successors, (20400), 10256 states have internal predecessors, (20400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:05:32,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10126 [2022-12-13 22:05:32,886 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:05:32,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:05:32,890 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:05:32,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:05:32,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1316295097, now seen corresponding path program 1 times [2022-12-13 22:05:32,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:05:32,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119090281] [2022-12-13 22:05:32,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:05:32,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:05:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:06:06,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:06:06,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:06:06,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119090281] [2022-12-13 22:06:06,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119090281] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:06:06,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:06:06,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:06:06,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441729706] [2022-12-13 22:06:06,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:06:06,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:06:06,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:06:06,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:06:06,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:06:06,091 INFO L87 Difference]: Start difference. First operand has 10257 states, 10255 states have (on average 1.9892735251097027) internal successors, (20400), 10256 states have internal predecessors, (20400), 0 states have call successors, (0), 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 3 states, 3 states have (on average 3375.0) internal successors, (10125), 2 states have internal predecessors, (10125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:06:37,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:06:37,116 INFO L93 Difference]: Finished difference Result 30705 states and 61134 transitions. [2022-12-13 22:06:37,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:06:37,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3375.0) internal successors, (10125), 2 states have internal predecessors, (10125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10125 [2022-12-13 22:06:37,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:06:37,249 INFO L225 Difference]: With dead ends: 30705 [2022-12-13 22:06:37,249 INFO L226 Difference]: Without dead ends: 20384 [2022-12-13 22:06:37,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:06:37,270 INFO L413 NwaCegarLoop]: 3649 mSDtfsCounter, 900 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 32216 mSolverCounterSat, 10597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 3702 SdHoareTripleChecker+Invalid, 42813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10597 IncrementalHoareTripleChecker+Valid, 32216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.4s IncrementalHoareTripleChecker+Time [2022-12-13 22:06:37,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 3702 Invalid, 42813 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10597 Valid, 32216 Invalid, 0 Unknown, 0 Unchecked, 30.4s Time] [2022-12-13 22:06:37,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20384 states. [2022-12-13 22:06:37,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20384 to 20384. [2022-12-13 22:06:37,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20384 states, 20383 states have (on average 1.815434430652995) internal successors, (37004), 20383 states have internal predecessors, (37004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:06:37,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20384 states to 20384 states and 37004 transitions. [2022-12-13 22:06:37,809 INFO L78 Accepts]: Start accepts. Automaton has 20384 states and 37004 transitions. Word has length 10125 [2022-12-13 22:06:37,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:06:37,818 INFO L495 AbstractCegarLoop]: Abstraction has 20384 states and 37004 transitions. [2022-12-13 22:06:37,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3375.0) internal successors, (10125), 2 states have internal predecessors, (10125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:06:37,821 INFO L276 IsEmpty]: Start isEmpty. Operand 20384 states and 37004 transitions. [2022-12-13 22:06:38,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10130 [2022-12-13 22:06:38,380 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:06:38,382 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:06:38,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 22:06:38,383 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:06:38,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:06:38,386 INFO L85 PathProgramCache]: Analyzing trace with hash 666926225, now seen corresponding path program 1 times [2022-12-13 22:06:38,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:06:38,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385459950] [2022-12-13 22:06:38,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:06:38,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:06:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:07:01,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:07:01,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:07:01,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385459950] [2022-12-13 22:07:01,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385459950] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:07:01,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:07:01,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:07:01,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34627312] [2022-12-13 22:07:01,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:07:01,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:07:01,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:07:01,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:07:01,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:07:01,588 INFO L87 Difference]: Start difference. First operand 20384 states and 37004 transitions. Second operand has 3 states, 3 states have (on average 3376.3333333333335) internal successors, (10129), 2 states have internal predecessors, (10129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:07:32,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:07:32,490 INFO L93 Difference]: Finished difference Result 61146 states and 111007 transitions. [2022-12-13 22:07:32,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:07:32,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3376.3333333333335) internal successors, (10129), 2 states have internal predecessors, (10129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10129 [2022-12-13 22:07:32,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:07:32,544 INFO L225 Difference]: With dead ends: 61146 [2022-12-13 22:07:32,545 INFO L226 Difference]: Without dead ends: 40764 [2022-12-13 22:07:32,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:07:32,559 INFO L413 NwaCegarLoop]: 4828 mSDtfsCounter, 13865 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28700 mSolverCounterSat, 11758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13865 SdHoareTripleChecker+Valid, 4877 SdHoareTripleChecker+Invalid, 40458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11758 IncrementalHoareTripleChecker+Valid, 28700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:07:32,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13865 Valid, 4877 Invalid, 40458 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11758 Valid, 28700 Invalid, 0 Unknown, 0 Unchecked, 30.3s Time] [2022-12-13 22:07:32,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40764 states. [2022-12-13 22:07:32,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40764 to 40764. [2022-12-13 22:07:32,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40764 states, 40763 states have (on average 1.6229669062630327) internal successors, (66157), 40763 states have internal predecessors, (66157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:07:32,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40764 states to 40764 states and 66157 transitions. [2022-12-13 22:07:32,980 INFO L78 Accepts]: Start accepts. Automaton has 40764 states and 66157 transitions. Word has length 10129 [2022-12-13 22:07:32,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:07:32,981 INFO L495 AbstractCegarLoop]: Abstraction has 40764 states and 66157 transitions. [2022-12-13 22:07:32,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3376.3333333333335) internal successors, (10129), 2 states have internal predecessors, (10129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:07:32,983 INFO L276 IsEmpty]: Start isEmpty. Operand 40764 states and 66157 transitions. [2022-12-13 22:07:33,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10131 [2022-12-13 22:07:33,544 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:07:33,554 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:07:33,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 22:07:33,554 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:07:33,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:07:33,560 INFO L85 PathProgramCache]: Analyzing trace with hash 515942641, now seen corresponding path program 1 times [2022-12-13 22:07:33,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:07:33,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413785256] [2022-12-13 22:07:33,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:07:33,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:07:34,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:07:55,449 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:07:55,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:07:55,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413785256] [2022-12-13 22:07:55,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413785256] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:07:55,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:07:55,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:07:55,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020709418] [2022-12-13 22:07:55,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:07:55,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:07:55,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:07:55,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:07:55,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:07:55,463 INFO L87 Difference]: Start difference. First operand 40764 states and 66157 transitions. Second operand has 3 states, 3 states have (on average 3376.6666666666665) internal successors, (10130), 2 states have internal predecessors, (10130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:08:27,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:08:27,080 INFO L93 Difference]: Finished difference Result 122286 states and 198466 transitions. [2022-12-13 22:08:27,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:08:27,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3376.6666666666665) internal successors, (10130), 2 states have internal predecessors, (10130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10130 [2022-12-13 22:08:27,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:08:27,152 INFO L225 Difference]: With dead ends: 122286 [2022-12-13 22:08:27,153 INFO L226 Difference]: Without dead ends: 81524 [2022-12-13 22:08:27,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:08:27,181 INFO L413 NwaCegarLoop]: 4823 mSDtfsCounter, 13686 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28825 mSolverCounterSat, 11677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13686 SdHoareTripleChecker+Valid, 4872 SdHoareTripleChecker+Invalid, 40502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11677 IncrementalHoareTripleChecker+Valid, 28825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.9s IncrementalHoareTripleChecker+Time [2022-12-13 22:08:27,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13686 Valid, 4872 Invalid, 40502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11677 Valid, 28825 Invalid, 0 Unknown, 0 Unchecked, 30.9s Time] [2022-12-13 22:08:27,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81524 states. [2022-12-13 22:08:27,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81524 to 81524. [2022-12-13 22:08:27,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81524 states, 81523 states have (on average 1.4781472713222035) internal successors, (120503), 81523 states have internal predecessors, (120503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:08:27,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81524 states to 81524 states and 120503 transitions. [2022-12-13 22:08:27,942 INFO L78 Accepts]: Start accepts. Automaton has 81524 states and 120503 transitions. Word has length 10130 [2022-12-13 22:08:27,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:08:27,943 INFO L495 AbstractCegarLoop]: Abstraction has 81524 states and 120503 transitions. [2022-12-13 22:08:27,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3376.6666666666665) internal successors, (10130), 2 states have internal predecessors, (10130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:08:27,944 INFO L276 IsEmpty]: Start isEmpty. Operand 81524 states and 120503 transitions. [2022-12-13 22:08:28,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10137 [2022-12-13 22:08:28,598 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:08:28,600 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:08:28,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 22:08:28,601 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:08:28,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:08:28,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1041371758, now seen corresponding path program 1 times [2022-12-13 22:08:28,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:08:28,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847681409] [2022-12-13 22:08:28,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:08:28,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:08:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:08:51,635 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 22:08:51,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:08:51,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847681409] [2022-12-13 22:08:51,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847681409] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:08:51,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:08:51,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:08:51,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275509814] [2022-12-13 22:08:51,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:08:51,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:08:51,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:08:51,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:08:51,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:08:51,653 INFO L87 Difference]: Start difference. First operand 81524 states and 120503 transitions. Second operand has 3 states, 3 states have (on average 3377.6666666666665) internal successors, (10133), 2 states have internal predecessors, (10133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:22,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:09:22,440 INFO L93 Difference]: Finished difference Result 244566 states and 361504 transitions. [2022-12-13 22:09:22,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:09:22,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3377.6666666666665) internal successors, (10133), 2 states have internal predecessors, (10133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10136 [2022-12-13 22:09:22,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:09:22,585 INFO L225 Difference]: With dead ends: 244566 [2022-12-13 22:09:22,585 INFO L226 Difference]: Without dead ends: 163044 [2022-12-13 22:09:22,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:09:22,613 INFO L413 NwaCegarLoop]: 8617 mSDtfsCounter, 11070 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 31006 mSolverCounterSat, 11008 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11070 SdHoareTripleChecker+Valid, 8666 SdHoareTripleChecker+Invalid, 42014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11008 IncrementalHoareTripleChecker+Valid, 31006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2022-12-13 22:09:22,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11070 Valid, 8666 Invalid, 42014 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11008 Valid, 31006 Invalid, 0 Unknown, 0 Unchecked, 29.8s Time] [2022-12-13 22:09:22,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163044 states. [2022-12-13 22:09:23,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163044 to 163044. [2022-12-13 22:09:23,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163044 states, 163043 states have (on average 1.3667253423943377) internal successors, (222835), 163043 states have internal predecessors, (222835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:24,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163044 states to 163044 states and 222835 transitions. [2022-12-13 22:09:24,030 INFO L78 Accepts]: Start accepts. Automaton has 163044 states and 222835 transitions. Word has length 10136 [2022-12-13 22:09:24,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:09:24,031 INFO L495 AbstractCegarLoop]: Abstraction has 163044 states and 222835 transitions. [2022-12-13 22:09:24,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3377.6666666666665) internal successors, (10133), 2 states have internal predecessors, (10133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:09:24,032 INFO L276 IsEmpty]: Start isEmpty. Operand 163044 states and 222835 transitions. [2022-12-13 22:09:25,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10147 [2022-12-13 22:09:25,012 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:09:25,015 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:09:25,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 22:09:25,015 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:09:25,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:09:25,018 INFO L85 PathProgramCache]: Analyzing trace with hash 90448409, now seen corresponding path program 1 times [2022-12-13 22:09:25,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:09:25,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282155680] [2022-12-13 22:09:25,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:09:25,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:09:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:09:58,817 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:09:58,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:09:58,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282155680] [2022-12-13 22:09:58,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282155680] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:09:58,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:09:58,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:09:58,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184837905] [2022-12-13 22:09:58,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:09:58,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:09:58,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:09:58,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:09:58,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:09:58,830 INFO L87 Difference]: Start difference. First operand 163044 states and 222835 transitions. Second operand has 3 states, 3 states have (on average 3382.0) internal successors, (10146), 2 states have internal predecessors, (10146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:27,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:10:27,459 INFO L93 Difference]: Finished difference Result 407606 states and 548036 transitions. [2022-12-13 22:10:27,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:10:27,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3382.0) internal successors, (10146), 2 states have internal predecessors, (10146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10146 [2022-12-13 22:10:27,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:10:27,713 INFO L225 Difference]: With dead ends: 407606 [2022-12-13 22:10:27,713 INFO L226 Difference]: Without dead ends: 244564 [2022-12-13 22:10:27,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:10:27,770 INFO L413 NwaCegarLoop]: 9643 mSDtfsCounter, 10411 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29399 mSolverCounterSat, 7489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10411 SdHoareTripleChecker+Valid, 9692 SdHoareTripleChecker+Invalid, 36888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7489 IncrementalHoareTripleChecker+Valid, 29399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.3s IncrementalHoareTripleChecker+Time [2022-12-13 22:10:27,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10411 Valid, 9692 Invalid, 36888 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7489 Valid, 29399 Invalid, 0 Unknown, 0 Unchecked, 27.3s Time] [2022-12-13 22:10:27,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244564 states. [2022-12-13 22:10:29,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244564 to 244564. [2022-12-13 22:10:29,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244564 states, 244563 states have (on average 1.2861348609560728) internal successors, (314541), 244563 states have internal predecessors, (314541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:30,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244564 states to 244564 states and 314541 transitions. [2022-12-13 22:10:30,228 INFO L78 Accepts]: Start accepts. Automaton has 244564 states and 314541 transitions. Word has length 10146 [2022-12-13 22:10:30,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:10:30,229 INFO L495 AbstractCegarLoop]: Abstraction has 244564 states and 314541 transitions. [2022-12-13 22:10:30,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3382.0) internal successors, (10146), 2 states have internal predecessors, (10146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:10:30,230 INFO L276 IsEmpty]: Start isEmpty. Operand 244564 states and 314541 transitions. [2022-12-13 22:10:31,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10163 [2022-12-13 22:10:31,161 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:10:31,164 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:10:31,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 22:10:31,164 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:10:31,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:10:31,168 INFO L85 PathProgramCache]: Analyzing trace with hash 27433793, now seen corresponding path program 1 times [2022-12-13 22:10:31,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:10:31,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044540617] [2022-12-13 22:10:31,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:10:31,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:10:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:10:56,108 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:10:56,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:10:56,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044540617] [2022-12-13 22:10:56,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044540617] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:10:56,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:10:56,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:10:56,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123621503] [2022-12-13 22:10:56,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:10:56,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:10:56,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:10:56,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:10:56,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:10:56,123 INFO L87 Difference]: Start difference. First operand 244564 states and 314541 transitions. Second operand has 3 states, 3 states have (on average 3387.3333333333335) internal successors, (10162), 2 states have internal predecessors, (10162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:11:28,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:11:28,015 INFO L93 Difference]: Finished difference Result 733686 states and 943618 transitions. [2022-12-13 22:11:28,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:11:28,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3387.3333333333335) internal successors, (10162), 2 states have internal predecessors, (10162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10162 [2022-12-13 22:11:28,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:11:28,758 INFO L225 Difference]: With dead ends: 733686 [2022-12-13 22:11:28,758 INFO L226 Difference]: Without dead ends: 489124 [2022-12-13 22:11:28,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:11:28,866 INFO L413 NwaCegarLoop]: 5700 mSDtfsCounter, 13739 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27430 mSolverCounterSat, 13030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13739 SdHoareTripleChecker+Valid, 5749 SdHoareTripleChecker+Invalid, 40460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13030 IncrementalHoareTripleChecker+Valid, 27430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2022-12-13 22:11:28,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13739 Valid, 5749 Invalid, 40460 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13030 Valid, 27430 Invalid, 0 Unknown, 0 Unchecked, 29.8s Time] [2022-12-13 22:11:29,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489124 states. [2022-12-13 22:11:32,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489124 to 489124. [2022-12-13 22:11:32,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489124 states, 489123 states have (on average 1.2033353573640986) internal successors, (588579), 489123 states have internal predecessors, (588579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:11:33,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489124 states to 489124 states and 588579 transitions. [2022-12-13 22:11:33,696 INFO L78 Accepts]: Start accepts. Automaton has 489124 states and 588579 transitions. Word has length 10162 [2022-12-13 22:11:33,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:11:33,697 INFO L495 AbstractCegarLoop]: Abstraction has 489124 states and 588579 transitions. [2022-12-13 22:11:33,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3387.3333333333335) internal successors, (10162), 2 states have internal predecessors, (10162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:11:33,698 INFO L276 IsEmpty]: Start isEmpty. Operand 489124 states and 588579 transitions. [2022-12-13 22:11:34,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10266 [2022-12-13 22:11:34,778 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:11:34,780 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:11:34,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 22:11:34,781 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:11:34,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:11:34,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1061451803, now seen corresponding path program 1 times [2022-12-13 22:11:34,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:11:34,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853235611] [2022-12-13 22:11:34,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:11:34,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:11:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:11:58,097 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:11:58,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:11:58,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853235611] [2022-12-13 22:11:58,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853235611] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:11:58,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:11:58,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:11:58,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159289674] [2022-12-13 22:11:58,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:11:58,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:11:58,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:11:58,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:11:58,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:11:58,109 INFO L87 Difference]: Start difference. First operand 489124 states and 588579 transitions. Second operand has 3 states, 3 states have (on average 3421.6666666666665) internal successors, (10265), 2 states have internal predecessors, (10265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:12:33,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:12:33,172 INFO L93 Difference]: Finished difference Result 1467366 states and 1765732 transitions. [2022-12-13 22:12:33,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:12:33,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3421.6666666666665) internal successors, (10265), 2 states have internal predecessors, (10265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10265 [2022-12-13 22:12:33,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:12:34,330 INFO L225 Difference]: With dead ends: 1467366 [2022-12-13 22:12:34,331 INFO L226 Difference]: Without dead ends: 978244 [2022-12-13 22:12:34,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:12:34,693 INFO L413 NwaCegarLoop]: 7703 mSDtfsCounter, 11600 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 31179 mSolverCounterSat, 10501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11600 SdHoareTripleChecker+Valid, 7752 SdHoareTripleChecker+Invalid, 41680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10501 IncrementalHoareTripleChecker+Valid, 31179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:12:34,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11600 Valid, 7752 Invalid, 41680 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10501 Valid, 31179 Invalid, 0 Unknown, 0 Unchecked, 31.0s Time] [2022-12-13 22:12:35,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978244 states. [2022-12-13 22:12:42,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978244 to 978244. [2022-12-13 22:12:42,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978244 states, 978243 states have (on average 1.154575090238315) internal successors, (1129455), 978243 states have internal predecessors, (1129455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:12:44,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978244 states to 978244 states and 1129455 transitions. [2022-12-13 22:12:44,439 INFO L78 Accepts]: Start accepts. Automaton has 978244 states and 1129455 transitions. Word has length 10265 [2022-12-13 22:12:44,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:12:44,440 INFO L495 AbstractCegarLoop]: Abstraction has 978244 states and 1129455 transitions. [2022-12-13 22:12:44,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3421.6666666666665) internal successors, (10265), 2 states have internal predecessors, (10265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:12:44,441 INFO L276 IsEmpty]: Start isEmpty. Operand 978244 states and 1129455 transitions. [2022-12-13 22:12:46,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10571 [2022-12-13 22:12:46,337 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:12:46,339 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:12:46,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 22:12:46,339 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:12:46,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:12:46,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1836014514, now seen corresponding path program 1 times [2022-12-13 22:12:46,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:12:46,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030323216] [2022-12-13 22:12:46,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:12:46,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:12:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:13:13,934 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-12-13 22:13:13,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:13:13,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030323216] [2022-12-13 22:13:13,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030323216] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:13:13,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:13:13,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:13:13,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493608127] [2022-12-13 22:13:13,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:13:13,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:13:13,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:13:13,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:13:13,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:13:13,945 INFO L87 Difference]: Start difference. First operand 978244 states and 1129455 transitions. Second operand has 3 states, 3 states have (on average 3471.3333333333335) internal successors, (10414), 2 states have internal predecessors, (10414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:13:50,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:13:50,510 INFO L93 Difference]: Finished difference Result 2445606 states and 2808118 transitions. [2022-12-13 22:13:50,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:13:50,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3471.3333333333335) internal successors, (10414), 2 states have internal predecessors, (10414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10570 [2022-12-13 22:13:50,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:13:52,316 INFO L225 Difference]: With dead ends: 2445606 [2022-12-13 22:13:52,316 INFO L226 Difference]: Without dead ends: 1467364 [2022-12-13 22:13:52,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:13:52,731 INFO L413 NwaCegarLoop]: 5131 mSDtfsCounter, 10928 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30114 mSolverCounterSat, 10732 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10928 SdHoareTripleChecker+Valid, 5180 SdHoareTripleChecker+Invalid, 40846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10732 IncrementalHoareTripleChecker+Valid, 30114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2022-12-13 22:13:52,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10928 Valid, 5180 Invalid, 40846 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10732 Valid, 30114 Invalid, 0 Unknown, 0 Unchecked, 30.5s Time] [2022-12-13 22:13:53,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467364 states. [2022-12-13 22:14:06,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467364 to 1467364. [2022-12-13 22:14:06,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467364 states, 1467363 states have (on average 1.099439606968419) internal successors, (1613277), 1467363 states have internal predecessors, (1613277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:14:09,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467364 states to 1467364 states and 1613277 transitions. [2022-12-13 22:14:09,105 INFO L78 Accepts]: Start accepts. Automaton has 1467364 states and 1613277 transitions. Word has length 10570 [2022-12-13 22:14:09,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:14:09,105 INFO L495 AbstractCegarLoop]: Abstraction has 1467364 states and 1613277 transitions. [2022-12-13 22:14:09,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3471.3333333333335) internal successors, (10414), 2 states have internal predecessors, (10414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:14:09,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1467364 states and 1613277 transitions. [2022-12-13 22:14:11,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10572 [2022-12-13 22:14:11,385 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:14:11,388 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:14:11,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 22:14:11,388 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:14:11,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:14:11,391 INFO L85 PathProgramCache]: Analyzing trace with hash 183063645, now seen corresponding path program 1 times [2022-12-13 22:14:11,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:14:11,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335002744] [2022-12-13 22:14:11,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:14:11,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:14:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat