./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem07_label36.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_ba34013d-bf1f-495c-945c-32cde6bde916/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba34013d-bf1f-495c-945c-32cde6bde916/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_ba34013d-bf1f-495c-945c-32cde6bde916/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba34013d-bf1f-495c-945c-32cde6bde916/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label36.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba34013d-bf1f-495c-945c-32cde6bde916/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_ba34013d-bf1f-495c-945c-32cde6bde916/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 0d57104f38c45893e27618b8d20450be720d8ef1c61fd58dd6e3586420b861c4 --- 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 21:19:34,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:19:34,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:19:34,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:19:34,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:19:34,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:19:34,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:19:34,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:19:34,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:19:34,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:19:34,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:19:34,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:19:34,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:19:34,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:19:34,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:19:34,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:19:34,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:19:34,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:19:34,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:19:34,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:19:34,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:19:34,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:19:34,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:19:34,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:19:34,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:19:34,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:19:34,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:19:34,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:19:34,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:19:34,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:19:34,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:19:34,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:19:34,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:19:34,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:19:34,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:19:34,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:19:34,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:19:34,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:19:34,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:19:34,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:19:34,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:19:34,967 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba34013d-bf1f-495c-945c-32cde6bde916/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 21:19:34,982 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:19:34,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:19:34,983 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:19:34,983 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:19:34,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:19:34,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:19:34,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:19:34,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:19:34,984 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:19:34,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:19:34,985 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:19:34,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:19:34,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:19:34,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:19:34,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:19:34,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:19:34,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:19:34,986 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:19:34,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:19:34,986 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:19:34,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:19:34,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:19:34,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:19:34,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:19:34,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:19:34,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:19:34,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:19:34,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:19:34,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:19:34,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:19:34,988 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:19:34,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:19:34,988 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:19:34,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:19:34,988 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:19:34,989 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_ba34013d-bf1f-495c-945c-32cde6bde916/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba34013d-bf1f-495c-945c-32cde6bde916/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d57104f38c45893e27618b8d20450be720d8ef1c61fd58dd6e3586420b861c4 [2022-12-13 21:19:35,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:19:35,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:19:35,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:19:35,172 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:19:35,173 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:19:35,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba34013d-bf1f-495c-945c-32cde6bde916/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/eca-rers2012/Problem07_label36.c [2022-12-13 21:19:37,785 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:19:38,795 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:19:38,796 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba34013d-bf1f-495c-945c-32cde6bde916/sv-benchmarks/c/eca-rers2012/Problem07_label36.c [2022-12-13 21:19:38,912 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba34013d-bf1f-495c-945c-32cde6bde916/bin/uautomizer-uyxdKDjOR8/data/dab480f07/4a40b494a69d494cbd2c2e6287cc1dbf/FLAG5287aafa5 [2022-12-13 21:19:38,922 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba34013d-bf1f-495c-945c-32cde6bde916/bin/uautomizer-uyxdKDjOR8/data/dab480f07/4a40b494a69d494cbd2c2e6287cc1dbf [2022-12-13 21:19:38,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:19:38,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:19:38,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:19:38,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:19:38,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:19:38,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:19:38" (1/1) ... [2022-12-13 21:19:38,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d4c3b6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:38, skipping insertion in model container [2022-12-13 21:19:38,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:19:38" (1/1) ... [2022-12-13 21:19:38,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:19:39,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:19:49,162 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_ba34013d-bf1f-495c-945c-32cde6bde916/sv-benchmarks/c/eca-rers2012/Problem07_label36.c[2767794,2767807] [2022-12-13 21:19:49,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:19:49,228 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:19:54,986 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_ba34013d-bf1f-495c-945c-32cde6bde916/sv-benchmarks/c/eca-rers2012/Problem07_label36.c[2767794,2767807] [2022-12-13 21:19:54,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:19:55,628 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:19:55,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:55 WrapperNode [2022-12-13 21:19:55,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:19:55,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:19:55,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:19:55,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:19:55,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:55" (1/1) ... [2022-12-13 21:19:55,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:55" (1/1) ... [2022-12-13 21:19:57,059 INFO L138 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83773 [2022-12-13 21:19:57,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:19:57,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:19:57,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:19:57,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:19:57,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:55" (1/1) ... [2022-12-13 21:19:57,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:55" (1/1) ... [2022-12-13 21:19:57,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:55" (1/1) ... [2022-12-13 21:19:57,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:55" (1/1) ... [2022-12-13 21:19:57,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:55" (1/1) ... [2022-12-13 21:19:58,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:55" (1/1) ... [2022-12-13 21:19:58,262 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:55" (1/1) ... [2022-12-13 21:19:58,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:55" (1/1) ... [2022-12-13 21:19:58,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:19:58,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:19:58,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:19:58,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:19:58,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:55" (1/1) ... [2022-12-13 21:19:58,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:19:58,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba34013d-bf1f-495c-945c-32cde6bde916/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:19:58,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba34013d-bf1f-495c-945c-32cde6bde916/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:19:58,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba34013d-bf1f-495c-945c-32cde6bde916/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:19:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:19:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:19:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:19:58,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:19:58,877 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:19:58,879 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:20:30,541 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:20:30,576 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:20:30,577 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 21:20:30,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:20:30 BoogieIcfgContainer [2022-12-13 21:20:30,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:20:30,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:20:30,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:20:30,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:20:30,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:19:38" (1/3) ... [2022-12-13 21:20:30,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6d368d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:20:30, skipping insertion in model container [2022-12-13 21:20:30,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:19:55" (2/3) ... [2022-12-13 21:20:30,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6d368d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:20:30, skipping insertion in model container [2022-12-13 21:20:30,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:20:30" (3/3) ... [2022-12-13 21:20:30,590 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem07_label36.c [2022-12-13 21:20:30,603 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:20:30,604 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 21:20:30,737 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:20:30,743 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;@4a33efff, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:20:30,743 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 21:20:30,777 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 21:20:31,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10093 [2022-12-13 21:20:31,249 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:20:31,253 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] [2022-12-13 21:20:31,254 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:20:31,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:20:31,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1513014258, now seen corresponding path program 1 times [2022-12-13 21:20:31,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:20:31,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678953413] [2022-12-13 21:20:31,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:20:31,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:20:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:06,477 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 21:21:06,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:21:06,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678953413] [2022-12-13 21:21:06,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678953413] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:21:06,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:21:06,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:21:06,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085469779] [2022-12-13 21:21:06,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:21:06,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:21:06,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:21:06,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:21:06,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:21:06,544 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 3364.0) internal successors, (10092), 2 states have internal predecessors, (10092), 0 states have call successors, (0), 0 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 21:21:35,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:21:35,745 INFO L93 Difference]: Finished difference Result 30716 states and 61145 transitions. [2022-12-13 21:21:35,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:21:35,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3364.0) internal successors, (10092), 2 states have internal predecessors, (10092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10092 [2022-12-13 21:21:35,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:21:35,832 INFO L225 Difference]: With dead ends: 30716 [2022-12-13 21:21:35,833 INFO L226 Difference]: Without dead ends: 20384 [2022-12-13 21:21:35,847 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 21:21:35,850 INFO L413 NwaCegarLoop]: 5117 mSDtfsCounter, 1992 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 33578 mSolverCounterSat, 7054 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 5170 SdHoareTripleChecker+Invalid, 40632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7054 IncrementalHoareTripleChecker+Valid, 33578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.6s IncrementalHoareTripleChecker+Time [2022-12-13 21:21:35,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1992 Valid, 5170 Invalid, 40632 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7054 Valid, 33578 Invalid, 0 Unknown, 0 Unchecked, 28.6s Time] [2022-12-13 21:21:35,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20384 states. [2022-12-13 21:21:36,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20384 to 20384. [2022-12-13 21:21:36,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20384 states, 20383 states have (on average 1.7444929598194574) internal successors, (35558), 20383 states have internal predecessors, (35558), 0 states have call successors, (0), 0 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 21:21:36,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20384 states to 20384 states and 35558 transitions. [2022-12-13 21:21:36,274 INFO L78 Accepts]: Start accepts. Automaton has 20384 states and 35558 transitions. Word has length 10092 [2022-12-13 21:21:36,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:21:36,282 INFO L495 AbstractCegarLoop]: Abstraction has 20384 states and 35558 transitions. [2022-12-13 21:21:36,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3364.0) internal successors, (10092), 2 states have internal predecessors, (10092), 0 states have call successors, (0), 0 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 21:21:36,285 INFO L276 IsEmpty]: Start isEmpty. Operand 20384 states and 35558 transitions. [2022-12-13 21:21:36,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10097 [2022-12-13 21:21:36,841 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:21:36,844 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] [2022-12-13 21:21:36,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:21:36,845 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:21:36,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:21:36,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1517208038, now seen corresponding path program 1 times [2022-12-13 21:21:36,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:21:36,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287233044] [2022-12-13 21:21:36,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:21:36,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:21:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:59,602 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 21:21:59,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:21:59,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287233044] [2022-12-13 21:21:59,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287233044] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:21:59,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:21:59,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:21:59,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546247460] [2022-12-13 21:21:59,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:21:59,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:21:59,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:21:59,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:21:59,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:21:59,618 INFO L87 Difference]: Start difference. First operand 20384 states and 35558 transitions. Second operand has 3 states, 3 states have (on average 3365.3333333333335) internal successors, (10096), 2 states have internal predecessors, (10096), 0 states have call successors, (0), 0 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 21:22:27,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:22:27,640 INFO L93 Difference]: Finished difference Result 61146 states and 106669 transitions. [2022-12-13 21:22:27,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:22:27,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3365.3333333333335) internal successors, (10096), 2 states have internal predecessors, (10096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10096 [2022-12-13 21:22:27,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:22:27,691 INFO L225 Difference]: With dead ends: 61146 [2022-12-13 21:22:27,691 INFO L226 Difference]: Without dead ends: 40764 [2022-12-13 21:22:27,702 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 21:22:27,702 INFO L413 NwaCegarLoop]: 4835 mSDtfsCounter, 13865 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28700 mSolverCounterSat, 11758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13865 SdHoareTripleChecker+Valid, 4884 SdHoareTripleChecker+Invalid, 40458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11758 IncrementalHoareTripleChecker+Valid, 28700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.4s IncrementalHoareTripleChecker+Time [2022-12-13 21:22:27,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13865 Valid, 4884 Invalid, 40458 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11758 Valid, 28700 Invalid, 0 Unknown, 0 Unchecked, 27.4s Time] [2022-12-13 21:22:27,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40764 states. [2022-12-13 21:22:28,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40764 to 40764. [2022-12-13 21:22:28,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40764 states, 40763 states have (on average 1.5682113681524912) internal successors, (63925), 40763 states have internal predecessors, (63925), 0 states have call successors, (0), 0 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 21:22:28,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40764 states to 40764 states and 63925 transitions. [2022-12-13 21:22:28,172 INFO L78 Accepts]: Start accepts. Automaton has 40764 states and 63925 transitions. Word has length 10096 [2022-12-13 21:22:28,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:22:28,173 INFO L495 AbstractCegarLoop]: Abstraction has 40764 states and 63925 transitions. [2022-12-13 21:22:28,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3365.3333333333335) internal successors, (10096), 2 states have internal predecessors, (10096), 0 states have call successors, (0), 0 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 21:22:28,175 INFO L276 IsEmpty]: Start isEmpty. Operand 40764 states and 63925 transitions. [2022-12-13 21:22:28,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10098 [2022-12-13 21:22:28,794 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:22:28,797 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] [2022-12-13 21:22:28,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 21:22:28,797 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:22:28,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:22:28,801 INFO L85 PathProgramCache]: Analyzing trace with hash -240089670, now seen corresponding path program 1 times [2022-12-13 21:22:28,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:22:28,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883808993] [2022-12-13 21:22:28,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:22:28,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:22:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:51,866 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 21:22:51,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:22:51,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883808993] [2022-12-13 21:22:51,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883808993] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:22:51,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:22:51,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:22:51,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761515145] [2022-12-13 21:22:51,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:22:51,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:22:51,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:22:51,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:22:51,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:22:51,884 INFO L87 Difference]: Start difference. First operand 40764 states and 63925 transitions. Second operand has 3 states, 3 states have (on average 3365.6666666666665) internal successors, (10097), 2 states have internal predecessors, (10097), 0 states have call successors, (0), 0 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 21:23:21,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:23:21,047 INFO L93 Difference]: Finished difference Result 122286 states and 191770 transitions. [2022-12-13 21:23:21,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:23:21,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3365.6666666666665) internal successors, (10097), 2 states have internal predecessors, (10097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10097 [2022-12-13 21:23:21,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:23:21,108 INFO L225 Difference]: With dead ends: 122286 [2022-12-13 21:23:21,109 INFO L226 Difference]: Without dead ends: 81524 [2022-12-13 21:23:21,130 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 21:23:21,130 INFO L413 NwaCegarLoop]: 6214 mSDtfsCounter, 12828 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29360 mSolverCounterSat, 11677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12828 SdHoareTripleChecker+Valid, 6263 SdHoareTripleChecker+Invalid, 41037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11677 IncrementalHoareTripleChecker+Valid, 29360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.5s IncrementalHoareTripleChecker+Time [2022-12-13 21:23:21,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12828 Valid, 6263 Invalid, 41037 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11677 Valid, 29360 Invalid, 0 Unknown, 0 Unchecked, 28.5s Time] [2022-12-13 21:23:21,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81524 states. [2022-12-13 21:23:21,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81524 to 81524. [2022-12-13 21:23:21,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81524 states, 81523 states have (on average 1.437373501956503) internal successors, (117179), 81523 states have internal predecessors, (117179), 0 states have call successors, (0), 0 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 21:23:21,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81524 states to 81524 states and 117179 transitions. [2022-12-13 21:23:21,833 INFO L78 Accepts]: Start accepts. Automaton has 81524 states and 117179 transitions. Word has length 10097 [2022-12-13 21:23:21,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:23:21,834 INFO L495 AbstractCegarLoop]: Abstraction has 81524 states and 117179 transitions. [2022-12-13 21:23:21,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3365.6666666666665) internal successors, (10097), 2 states have internal predecessors, (10097), 0 states have call successors, (0), 0 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 21:23:21,835 INFO L276 IsEmpty]: Start isEmpty. Operand 81524 states and 117179 transitions. [2022-12-13 21:23:22,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10104 [2022-12-13 21:23:22,554 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:23:22,557 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-12-13 21:23:22,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 21:23:22,558 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:23:22,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:23:22,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1677837205, now seen corresponding path program 1 times [2022-12-13 21:23:22,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:23:22,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655362813] [2022-12-13 21:23:22,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:23:22,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:23:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:48,381 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:23:48,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:23:48,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655362813] [2022-12-13 21:23:48,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655362813] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:23:48,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:23:48,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:23:48,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563533060] [2022-12-13 21:23:48,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:23:48,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:23:48,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:23:48,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:23:48,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:23:48,393 INFO L87 Difference]: Start difference. First operand 81524 states and 117179 transitions. Second operand has 3 states, 3 states have (on average 3367.6666666666665) internal successors, (10103), 2 states have internal predecessors, (10103), 0 states have call successors, (0), 0 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 21:24:17,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:17,593 INFO L93 Difference]: Finished difference Result 244566 states and 351532 transitions. [2022-12-13 21:24:17,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:24:17,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3367.6666666666665) internal successors, (10103), 2 states have internal predecessors, (10103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10103 [2022-12-13 21:24:17,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:24:17,763 INFO L225 Difference]: With dead ends: 244566 [2022-12-13 21:24:17,763 INFO L226 Difference]: Without dead ends: 163044 [2022-12-13 21:24:17,855 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 21:24:17,856 INFO L413 NwaCegarLoop]: 6168 mSDtfsCounter, 13400 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27533 mSolverCounterSat, 13030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13400 SdHoareTripleChecker+Valid, 6217 SdHoareTripleChecker+Invalid, 40563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13030 IncrementalHoareTripleChecker+Valid, 27533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:24:17,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13400 Valid, 6217 Invalid, 40563 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13030 Valid, 27533 Invalid, 0 Unknown, 0 Unchecked, 28.2s Time] [2022-12-13 21:24:17,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163044 states. [2022-12-13 21:24:19,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163044 to 163044. [2022-12-13 21:24:19,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163044 states, 163043 states have (on average 1.3137699870586288) internal successors, (214201), 163043 states have internal predecessors, (214201), 0 states have call successors, (0), 0 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 21:24:19,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163044 states to 163044 states and 214201 transitions. [2022-12-13 21:24:19,403 INFO L78 Accepts]: Start accepts. Automaton has 163044 states and 214201 transitions. Word has length 10103 [2022-12-13 21:24:19,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:24:19,404 INFO L495 AbstractCegarLoop]: Abstraction has 163044 states and 214201 transitions. [2022-12-13 21:24:19,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3367.6666666666665) internal successors, (10103), 2 states have internal predecessors, (10103), 0 states have call successors, (0), 0 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 21:24:19,406 INFO L276 IsEmpty]: Start isEmpty. Operand 163044 states and 214201 transitions. [2022-12-13 21:24:20,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10114 [2022-12-13 21:24:20,205 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:24:20,208 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] [2022-12-13 21:24:20,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 21:24:20,208 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:24:20,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:20,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1415751570, now seen corresponding path program 1 times [2022-12-13 21:24:20,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:24:20,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98518147] [2022-12-13 21:24:20,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:20,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:24:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:24:54,280 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 21:24:54,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:24:54,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98518147] [2022-12-13 21:24:54,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98518147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:24:54,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:24:54,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:24:54,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317709605] [2022-12-13 21:24:54,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:24:54,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:24:54,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:24:54,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:24:54,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:24:54,293 INFO L87 Difference]: Start difference. First operand 163044 states and 214201 transitions. Second operand has 3 states, 3 states have (on average 3371.0) internal successors, (10113), 2 states have internal predecessors, (10113), 0 states have call successors, (0), 0 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 21:25:21,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:25:21,212 INFO L93 Difference]: Finished difference Result 407606 states and 527576 transitions. [2022-12-13 21:25:21,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:25:21,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3371.0) internal successors, (10113), 2 states have internal predecessors, (10113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10113 [2022-12-13 21:25:21,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:25:21,440 INFO L225 Difference]: With dead ends: 407606 [2022-12-13 21:25:21,440 INFO L226 Difference]: Without dead ends: 244564 [2022-12-13 21:25:21,482 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 21:25:21,483 INFO L413 NwaCegarLoop]: 8007 mSDtfsCounter, 11128 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28480 mSolverCounterSat, 7491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11128 SdHoareTripleChecker+Valid, 8056 SdHoareTripleChecker+Invalid, 35971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7491 IncrementalHoareTripleChecker+Valid, 28480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.7s IncrementalHoareTripleChecker+Time [2022-12-13 21:25:21,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11128 Valid, 8056 Invalid, 35971 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7491 Valid, 28480 Invalid, 0 Unknown, 0 Unchecked, 25.7s Time] [2022-12-13 21:25:21,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244564 states. [2022-12-13 21:25:23,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244564 to 244564. [2022-12-13 21:25:23,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244564 states, 244563 states have (on average 1.243888077918573) internal successors, (304209), 244563 states have internal predecessors, (304209), 0 states have call successors, (0), 0 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 21:25:23,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244564 states to 244564 states and 304209 transitions. [2022-12-13 21:25:23,647 INFO L78 Accepts]: Start accepts. Automaton has 244564 states and 304209 transitions. Word has length 10113 [2022-12-13 21:25:23,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:25:23,648 INFO L495 AbstractCegarLoop]: Abstraction has 244564 states and 304209 transitions. [2022-12-13 21:25:23,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3371.0) internal successors, (10113), 2 states have internal predecessors, (10113), 0 states have call successors, (0), 0 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 21:25:23,650 INFO L276 IsEmpty]: Start isEmpty. Operand 244564 states and 304209 transitions. [2022-12-13 21:25:24,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10143 [2022-12-13 21:25:24,528 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:25:24,530 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-12-13 21:25:24,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 21:25:24,531 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:25:24,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:25:24,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1546974151, now seen corresponding path program 1 times [2022-12-13 21:25:24,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:25:24,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636497303] [2022-12-13 21:25:24,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:25:24,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:25:25,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:25:48,377 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:25:48,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:25:48,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636497303] [2022-12-13 21:25:48,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636497303] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:25:48,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:25:48,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:25:48,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308596382] [2022-12-13 21:25:48,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:25:48,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:25:48,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:25:48,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:25:48,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:25:48,395 INFO L87 Difference]: Start difference. First operand 244564 states and 304209 transitions. Second operand has 3 states, 3 states have (on average 3380.6666666666665) internal successors, (10142), 2 states have internal predecessors, (10142), 0 states have call successors, (0), 0 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 21:26:19,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:26:19,872 INFO L93 Difference]: Finished difference Result 733686 states and 912622 transitions. [2022-12-13 21:26:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:26:19,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3380.6666666666665) internal successors, (10142), 2 states have internal predecessors, (10142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10142 [2022-12-13 21:26:19,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:26:20,490 INFO L225 Difference]: With dead ends: 733686 [2022-12-13 21:26:20,490 INFO L226 Difference]: Without dead ends: 489124 [2022-12-13 21:26:20,574 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 21:26:20,575 INFO L413 NwaCegarLoop]: 7238 mSDtfsCounter, 11829 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 30502 mSolverCounterSat, 11086 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11829 SdHoareTripleChecker+Valid, 7288 SdHoareTripleChecker+Invalid, 41588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11086 IncrementalHoareTripleChecker+Valid, 30502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.4s IncrementalHoareTripleChecker+Time [2022-12-13 21:26:20,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11829 Valid, 7288 Invalid, 41588 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11086 Valid, 30502 Invalid, 0 Unknown, 0 Unchecked, 29.4s Time] [2022-12-13 21:26:20,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489124 states. [2022-12-13 21:26:24,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489124 to 489124. [2022-12-13 21:26:24,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489124 states, 489123 states have (on average 1.1869223078857465) internal successors, (580551), 489123 states have internal predecessors, (580551), 0 states have call successors, (0), 0 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 21:26:25,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489124 states to 489124 states and 580551 transitions. [2022-12-13 21:26:25,259 INFO L78 Accepts]: Start accepts. Automaton has 489124 states and 580551 transitions. Word has length 10142 [2022-12-13 21:26:25,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:26:25,260 INFO L495 AbstractCegarLoop]: Abstraction has 489124 states and 580551 transitions. [2022-12-13 21:26:25,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3380.6666666666665) internal successors, (10142), 2 states have internal predecessors, (10142), 0 states have call successors, (0), 0 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 21:26:25,261 INFO L276 IsEmpty]: Start isEmpty. Operand 489124 states and 580551 transitions. [2022-12-13 21:26:26,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10280 [2022-12-13 21:26:26,362 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:26:26,364 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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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] [2022-12-13 21:26:26,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 21:26:26,365 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:26:26,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:26:26,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1584312141, now seen corresponding path program 1 times [2022-12-13 21:26:26,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:26:26,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477573332] [2022-12-13 21:26:26,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:26:26,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:26:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:26:50,599 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:26:50,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:26:50,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477573332] [2022-12-13 21:26:50,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477573332] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:26:50,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:26:50,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:26:50,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784348041] [2022-12-13 21:26:50,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:26:50,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:26:50,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:26:50,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:26:50,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:26:50,611 INFO L87 Difference]: Start difference. First operand 489124 states and 580551 transitions. Second operand has 3 states, 3 states have (on average 3426.3333333333335) internal successors, (10279), 2 states have internal predecessors, (10279), 0 states have call successors, (0), 0 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 21:27:24,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:27:24,542 INFO L93 Difference]: Finished difference Result 1467366 states and 1741648 transitions. [2022-12-13 21:27:24,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:27:24,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3426.3333333333335) internal successors, (10279), 2 states have internal predecessors, (10279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10279 [2022-12-13 21:27:24,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:27:25,859 INFO L225 Difference]: With dead ends: 1467366 [2022-12-13 21:27:25,859 INFO L226 Difference]: Without dead ends: 978244 [2022-12-13 21:27:26,022 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 21:27:26,023 INFO L413 NwaCegarLoop]: 6467 mSDtfsCounter, 12281 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30671 mSolverCounterSat, 10501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12281 SdHoareTripleChecker+Valid, 6516 SdHoareTripleChecker+Invalid, 41172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10501 IncrementalHoareTripleChecker+Valid, 30671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:27:26,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12281 Valid, 6516 Invalid, 41172 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10501 Valid, 30671 Invalid, 0 Unknown, 0 Unchecked, 30.2s Time] [2022-12-13 21:27:26,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978244 states. [2022-12-13 21:27:33,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978244 to 978244. [2022-12-13 21:27:34,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978244 states, 978243 states have (on average 1.1423388667232988) internal successors, (1117485), 978243 states have internal predecessors, (1117485), 0 states have call successors, (0), 0 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 21:27:35,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978244 states to 978244 states and 1117485 transitions. [2022-12-13 21:27:35,974 INFO L78 Accepts]: Start accepts. Automaton has 978244 states and 1117485 transitions. Word has length 10279 [2022-12-13 21:27:35,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:27:35,975 INFO L495 AbstractCegarLoop]: Abstraction has 978244 states and 1117485 transitions. [2022-12-13 21:27:35,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3426.3333333333335) internal successors, (10279), 2 states have internal predecessors, (10279), 0 states have call successors, (0), 0 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 21:27:35,976 INFO L276 IsEmpty]: Start isEmpty. Operand 978244 states and 1117485 transitions. [2022-12-13 21:27:37,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10502 [2022-12-13 21:27:37,797 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:27:37,799 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 21:27:37,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 21:27:37,799 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:27:37,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:27:37,802 INFO L85 PathProgramCache]: Analyzing trace with hash -380157739, now seen corresponding path program 1 times [2022-12-13 21:27:37,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:27:37,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771634359] [2022-12-13 21:27:37,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:27:37,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:27:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:28:05,431 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 405 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-12-13 21:28:05,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:28:05,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771634359] [2022-12-13 21:28:05,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771634359] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:28:05,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:28:05,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:28:05,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883149773] [2022-12-13 21:28:05,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:28:05,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:28:05,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:28:05,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:28:05,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:28:05,445 INFO L87 Difference]: Start difference. First operand 978244 states and 1117485 transitions. Second operand has 3 states, 3 states have (on average 3460.0) internal successors, (10380), 2 states have internal predecessors, (10380), 0 states have call successors, (0), 0 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 21:28:43,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:28:43,924 INFO L93 Difference]: Finished difference Result 2934726 states and 3352450 transitions. [2022-12-13 21:28:43,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:28:43,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3460.0) internal successors, (10380), 2 states have internal predecessors, (10380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10501 [2022-12-13 21:28:43,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:28:46,374 INFO L225 Difference]: With dead ends: 2934726 [2022-12-13 21:28:46,374 INFO L226 Difference]: Without dead ends: 1956484 [2022-12-13 21:28:46,665 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 21:28:46,666 INFO L413 NwaCegarLoop]: 6685 mSDtfsCounter, 10529 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30606 mSolverCounterSat, 12522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10529 SdHoareTripleChecker+Valid, 6734 SdHoareTripleChecker+Invalid, 43128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12522 IncrementalHoareTripleChecker+Valid, 30606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.3s IncrementalHoareTripleChecker+Time [2022-12-13 21:28:46,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10529 Valid, 6734 Invalid, 43128 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12522 Valid, 30606 Invalid, 0 Unknown, 0 Unchecked, 31.3s Time] [2022-12-13 21:28:48,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956484 states. [2022-12-13 21:29:03,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956484 to 1956484. [2022-12-13 21:29:04,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1956484 states, 1956483 states have (on average 1.1169189816625036) internal successors, (2185233), 1956483 states have internal predecessors, (2185233), 0 states have call successors, (0), 0 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 21:29:07,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1956484 states to 1956484 states and 2185233 transitions. [2022-12-13 21:29:07,086 INFO L78 Accepts]: Start accepts. Automaton has 1956484 states and 2185233 transitions. Word has length 10501 [2022-12-13 21:29:07,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:29:07,087 INFO L495 AbstractCegarLoop]: Abstraction has 1956484 states and 2185233 transitions. [2022-12-13 21:29:07,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3460.0) internal successors, (10380), 2 states have internal predecessors, (10380), 0 states have call successors, (0), 0 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 21:29:07,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1956484 states and 2185233 transitions. [2022-12-13 21:29:10,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10705 [2022-12-13 21:29:10,269 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:29:10,271 INFO L195 NwaCegarLoop]: trace histogram [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, 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, 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, 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, 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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] [2022-12-13 21:29:10,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 21:29:10,271 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:29:10,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:29:10,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1664800529, now seen corresponding path program 1 times [2022-12-13 21:29:10,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:29:10,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083871812] [2022-12-13 21:29:10,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:29:10,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:29:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:29:45,872 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 609 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-12-13 21:29:45,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:29:45,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083871812] [2022-12-13 21:29:45,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083871812] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:29:45,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:29:45,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:29:45,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049809948] [2022-12-13 21:29:45,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:29:46,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:29:46,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:29:46,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:29:46,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:29:46,051 INFO L87 Difference]: Start difference. First operand 1956484 states and 2185233 transitions. Second operand has 3 states, 3 states have (on average 3506.0) internal successors, (10518), 2 states have internal predecessors, (10518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)