./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-ipw2x00-ipw2100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_83e629dd-b2c9-46c7-a632-fb5356538ecf/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e629dd-b2c9-46c7-a632-fb5356538ecf/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e629dd-b2c9-46c7-a632-fb5356538ecf/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e629dd-b2c9-46c7-a632-fb5356538ecf/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-ipw2x00-ipw2100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e629dd-b2c9-46c7-a632-fb5356538ecf/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e629dd-b2c9-46c7-a632-fb5356538ecf/bin/utaipan-7li7fVZpFI --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3175a50fddc095ad7f0b830e9cbc7a53388765b43a39b66b2d6d21a3494a6307 --- 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-5e519f3 [2022-11-03 03:35:16,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:35:16,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:35:16,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:35:16,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:35:16,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:35:16,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:35:16,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:35:16,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:35:16,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:35:16,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:35:16,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:35:16,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:35:16,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:35:16,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:35:16,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:35:16,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:35:16,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:35:16,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:35:16,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:35:16,967 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:35:16,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:35:16,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:35:16,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:35:16,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:35:16,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:35:16,981 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:35:16,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:35:16,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:35:16,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:35:16,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:35:16,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:35:16,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:35:16,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:35:16,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:35:16,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:35:16,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:35:16,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:35:16,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:35:16,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:35:16,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:35:17,000 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e629dd-b2c9-46c7-a632-fb5356538ecf/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:35:17,043 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:35:17,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:35:17,044 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:35:17,045 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:35:17,045 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:35:17,046 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:35:17,046 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:35:17,047 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:35:17,047 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:35:17,047 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:35:17,048 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:35:17,048 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:35:17,049 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:35:17,049 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:35:17,049 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:35:17,049 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:35:17,050 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:35:17,050 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:35:17,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:35:17,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:35:17,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:35:17,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:35:17,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:35:17,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:35:17,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:35:17,054 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:35:17,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:35:17,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:35:17,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:35:17,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:35:17,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:35:17,056 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:35:17,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:35:17,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:35:17,057 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:35:17,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:35:17,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:35:17,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:35:17,058 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e629dd-b2c9-46c7-a632-fb5356538ecf/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e629dd-b2c9-46c7-a632-fb5356538ecf/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3175a50fddc095ad7f0b830e9cbc7a53388765b43a39b66b2d6d21a3494a6307 [2022-11-03 03:35:17,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:35:17,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:35:17,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:35:17,388 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:35:17,389 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:35:17,390 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e629dd-b2c9-46c7-a632-fb5356538ecf/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-03 03:35:17,470 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e629dd-b2c9-46c7-a632-fb5356538ecf/bin/utaipan-7li7fVZpFI/data/2ac2e2f1f/0cc9e73aaefc4482b3e255efd8c0f525/FLAG19329c5b3 [2022-11-03 03:35:18,752 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:35:18,753 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e629dd-b2c9-46c7-a632-fb5356538ecf/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-03 03:35:18,861 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e629dd-b2c9-46c7-a632-fb5356538ecf/bin/utaipan-7li7fVZpFI/data/2ac2e2f1f/0cc9e73aaefc4482b3e255efd8c0f525/FLAG19329c5b3 [2022-11-03 03:35:19,297 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e629dd-b2c9-46c7-a632-fb5356538ecf/bin/utaipan-7li7fVZpFI/data/2ac2e2f1f/0cc9e73aaefc4482b3e255efd8c0f525 [2022-11-03 03:35:19,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:35:19,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:35:19,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:35:19,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:35:19,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:35:19,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:35:19" (1/1) ... [2022-11-03 03:35:19,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@286412b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:19, skipping insertion in model container [2022-11-03 03:35:19,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:35:19" (1/1) ... [2022-11-03 03:35:19,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:35:19,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:35:26,160 WARN L230 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_83e629dd-b2c9-46c7-a632-fb5356538ecf/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-ipw2x00-ipw2100.cil.i[747166,747179] [2022-11-03 03:35:26,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:35:26,253 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:35:27,121 WARN L230 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_83e629dd-b2c9-46c7-a632-fb5356538ecf/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-ipw2x00-ipw2100.cil.i[747166,747179] [2022-11-03 03:35:27,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:35:27,428 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:35:27,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:27 WrapperNode [2022-11-03 03:35:27,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:35:27,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:35:27,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:35:27,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:35:27,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:27" (1/1) ... [2022-11-03 03:35:27,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:27" (1/1) ... [2022-11-03 03:35:28,170 INFO L138 Inliner]: procedures = 602, calls = 11474, calls flagged for inlining = 305, calls inlined = 243, statements flattened = 12781 [2022-11-03 03:35:28,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:35:28,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:35:28,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:35:28,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:35:28,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:27" (1/1) ... [2022-11-03 03:35:28,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:27" (1/1) ... [2022-11-03 03:35:28,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:27" (1/1) ... [2022-11-03 03:35:28,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:27" (1/1) ... [2022-11-03 03:35:28,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:27" (1/1) ... [2022-11-03 03:35:28,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:27" (1/1) ... [2022-11-03 03:35:28,823 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:27" (1/1) ... [2022-11-03 03:35:28,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:27" (1/1) ... [2022-11-03 03:35:28,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:35:28,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:35:28,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:35:28,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:35:28,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:27" (1/1) ... [2022-11-03 03:35:28,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:35:28,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e629dd-b2c9-46c7-a632-fb5356538ecf/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:35:28,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e629dd-b2c9-46c7-a632-fb5356538ecf/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:35:28,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e629dd-b2c9-46c7-a632-fb5356538ecf/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:35:29,027 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 03:35:29,027 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 03:35:29,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 03:35:29,028 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 03:35:29,028 INFO L130 BoogieDeclarations]: Found specification of procedure read_register [2022-11-03 03:35:29,028 INFO L138 BoogieDeclarations]: Found implementation of procedure read_register [2022-11-03 03:35:29,028 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_send_data [2022-11-03 03:35:29,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_send_data [2022-11-03 03:35:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure write_register_byte [2022-11-03 03:35:29,029 INFO L138 BoogieDeclarations]: Found implementation of procedure write_register_byte [2022-11-03 03:35:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:35:29,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:35:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 03:35:29,030 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 03:35:29,030 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-11-03 03:35:29,030 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-11-03 03:35:29,030 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_release_firmware [2022-11-03 03:35:29,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_release_firmware [2022-11-03 03:35:29,030 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_configure_security [2022-11-03 03:35:29,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_configure_security [2022-11-03 03:35:29,031 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 03:35:29,031 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 03:35:29,031 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-03 03:35:29,031 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-03 03:35:29,031 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_reset_adapter [2022-11-03 03:35:29,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_reset_adapter [2022-11-03 03:35:29,032 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_security_information [2022-11-03 03:35:29,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_security_information [2022-11-03 03:35:29,032 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-03 03:35:29,032 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-03 03:35:29,032 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 03:35:29,033 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 03:35:29,033 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 03:35:29,033 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 03:35:29,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 03:35:29,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 03:35:29,033 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 03:35:29,034 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 03:35:29,034 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 03:35:29,034 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 03:35:29,034 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_mandatory_bssid [2022-11-03 03:35:29,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_mandatory_bssid [2022-11-03 03:35:29,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:35:29,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:35:29,035 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 03:35:29,035 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 03:35:29,035 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_rfkill_set_hw_state [2022-11-03 03:35:29,035 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_rfkill_set_hw_state [2022-11-03 03:35:29,035 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_unregister [2022-11-03 03:35:29,035 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_unregister [2022-11-03 03:35:29,035 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_disable_adapter [2022-11-03 03:35:29,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_disable_adapter [2022-11-03 03:35:29,036 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 03:35:29,036 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 03:35:29,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:35:29,036 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_send_command [2022-11-03 03:35:29,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_send_command [2022-11-03 03:35:29,036 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 03:35:29,036 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 03:35:29,036 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_word [2022-11-03 03:35:29,037 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_word [2022-11-03 03:35:29,037 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 03:35:29,037 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 03:35:29,037 INFO L130 BoogieDeclarations]: Found specification of procedure isr_scan_complete [2022-11-03 03:35:29,037 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_scan_complete [2022-11-03 03:35:29,037 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_power_mode [2022-11-03 03:35:29,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_power_mode [2022-11-03 03:35:29,037 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 03:35:29,037 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 03:35:29,038 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_byte [2022-11-03 03:35:29,038 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_byte [2022-11-03 03:35:29,038 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 03:35:29,038 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 03:35:29,038 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2022-11-03 03:35:29,038 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2022-11-03 03:35:29,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 03:35:29,038 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 03:35:29,038 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 03:35:29,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-03 03:35:29,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-03 03:35:29,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:35:29,039 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_dword [2022-11-03 03:35:29,040 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_dword [2022-11-03 03:35:29,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 03:35:29,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 03:35:29,040 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_channel [2022-11-03 03:35:29,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_channel [2022-11-03 03:35:29,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:35:29,041 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 03:35:29,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 03:35:29,042 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_up [2022-11-03 03:35:29,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_up [2022-11-03 03:35:29,043 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_send_commands [2022-11-03 03:35:29,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_send_commands [2022-11-03 03:35:29,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 03:35:29,044 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 03:35:29,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 03:35:29,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 03:35:29,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 03:35:29,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 03:35:29,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 03:35:29,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 03:35:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipw2100_exit_18_2 [2022-11-03 03:35:29,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipw2100_exit_18_2 [2022-11-03 03:35:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 03:35:29,046 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 03:35:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 03:35:29,046 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 03:35:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_enable_adapter [2022-11-03 03:35:29,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_enable_adapter [2022-11-03 03:35:29,047 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 03:35:29,050 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 03:35:29,051 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_scan_options [2022-11-03 03:35:29,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_scan_options [2022-11-03 03:35:29,051 INFO L130 BoogieDeclarations]: Found specification of procedure libipw_txb_free [2022-11-03 03:35:29,052 INFO L138 BoogieDeclarations]: Found implementation of procedure libipw_txb_free [2022-11-03 03:35:29,053 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_reset_fatalerror [2022-11-03 03:35:29,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_reset_fatalerror [2022-11-03 03:35:29,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:35:29,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 03:35:29,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 03:35:29,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 03:35:29,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 03:35:29,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:35:29,059 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_tx_rates [2022-11-03 03:35:29,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_tx_rates [2022-11-03 03:35:29,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 03:35:29,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 03:35:29,059 INFO L130 BoogieDeclarations]: Found specification of procedure print_ssid [2022-11-03 03:35:29,060 INFO L138 BoogieDeclarations]: Found implementation of procedure print_ssid [2022-11-03 03:35:29,060 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 03:35:29,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 03:35:29,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:35:29,060 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-03 03:35:29,060 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-03 03:35:29,060 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 03:35:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_snapshot_free [2022-11-03 03:35:29,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_snapshot_free [2022-11-03 03:35:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:35:29,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:35:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure snprint_line [2022-11-03 03:35:29,061 INFO L138 BoogieDeclarations]: Found implementation of procedure snprint_line [2022-11-03 03:35:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 03:35:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 03:35:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_reset [2022-11-03 03:35:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_reset [2022-11-03 03:35:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-03 03:35:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-03 03:35:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 03:35:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 03:35:29,063 INFO L130 BoogieDeclarations]: Found specification of procedure sw_reset_and_clock [2022-11-03 03:35:29,063 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_reset_and_clock [2022-11-03 03:35:29,063 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_enable_interrupts [2022-11-03 03:35:29,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_enable_interrupts [2022-11-03 03:35:29,063 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-03 03:35:29,063 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-03 03:35:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_resume [2022-11-03 03:35:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_resume [2022-11-03 03:35:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-11-03 03:35:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-11-03 03:35:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:35:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:35:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2022-11-03 03:35:29,065 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2022-11-03 03:35:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_pci_remove_one [2022-11-03 03:35:29,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_pci_remove_one [2022-11-03 03:35:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_free [2022-11-03 03:35:29,065 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_free [2022-11-03 03:35:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-03 03:35:29,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-03 03:35:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:35:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:35:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:35:29,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:35:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_alloc_skb [2022-11-03 03:35:29,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_alloc_skb [2022-11-03 03:35:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-03 03:35:29,067 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-03 03:35:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_get_ordinal [2022-11-03 03:35:29,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_get_ordinal [2022-11-03 03:35:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_stop_adapter [2022-11-03 03:35:29,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_stop_adapter [2022-11-03 03:35:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure write_register [2022-11-03 03:35:29,068 INFO L138 BoogieDeclarations]: Found implementation of procedure write_register [2022-11-03 03:35:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_set_gpio [2022-11-03 03:35:29,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_set_gpio [2022-11-03 03:35:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 03:35:29,068 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 03:35:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_down [2022-11-03 03:35:29,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_down [2022-11-03 03:35:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_close [2022-11-03 03:35:29,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_close [2022-11-03 03:35:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_wait_for_card_state [2022-11-03 03:35:29,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_wait_for_card_state [2022-11-03 03:35:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_rf_kill [2022-11-03 03:35:29,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_rf_kill [2022-11-03 03:35:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 03:35:29,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 03:35:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 03:35:29,070 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 03:35:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure read_register_byte [2022-11-03 03:35:29,070 INFO L138 BoogieDeclarations]: Found implementation of procedure read_register_byte [2022-11-03 03:35:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure status_queue_free [2022-11-03 03:35:29,070 INFO L138 BoogieDeclarations]: Found implementation of procedure status_queue_free [2022-11-03 03:35:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 03:35:29,071 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 03:35:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:35:29,071 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:35:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 03:35:29,071 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 03:35:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_rx_free [2022-11-03 03:35:29,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_rx_free [2022-11-03 03:35:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-03 03:35:29,072 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-03 03:35:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-03 03:35:29,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-03 03:35:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 03:35:29,072 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 03:35:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-03 03:35:29,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-03 03:35:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:35:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure mod_delayed_work [2022-11-03 03:35:29,073 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_delayed_work [2022-11-03 03:35:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 03:35:29,073 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 03:35:29,074 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_shutdown [2022-11-03 03:35:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_shutdown [2022-11-03 03:35:29,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:35:29,074 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_word [2022-11-03 03:35:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_word [2022-11-03 03:35:29,074 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_association_lost [2022-11-03 03:35:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_association_lost [2022-11-03 03:35:29,075 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_free [2022-11-03 03:35:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_free [2022-11-03 03:35:29,075 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_mac_address [2022-11-03 03:35:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_mac_address [2022-11-03 03:35:29,075 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_essid [2022-11-03 03:35:29,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_essid [2022-11-03 03:35:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-03 03:35:29,080 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-03 03:35:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:35:29,080 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_disable_interrupts [2022-11-03 03:35:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_disable_interrupts [2022-11-03 03:35:29,081 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-03 03:35:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-03 03:35:29,081 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 03:35:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 03:35:29,081 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_rts_threshold [2022-11-03 03:35:29,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_rts_threshold [2022-11-03 03:35:29,085 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_byte [2022-11-03 03:35:29,085 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_byte [2022-11-03 03:35:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 03:35:29,086 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 03:35:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 03:35:29,086 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 03:35:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure free_libipw [2022-11-03 03:35:29,086 INFO L138 BoogieDeclarations]: Found implementation of procedure free_libipw [2022-11-03 03:35:29,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 03:35:29,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 03:35:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-03 03:35:29,087 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-03 03:35:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 03:35:29,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 03:35:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_msg_free [2022-11-03 03:35:29,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_msg_free [2022-11-03 03:35:29,087 INFO L130 BoogieDeclarations]: Found specification of procedure printk_buf [2022-11-03 03:35:29,087 INFO L138 BoogieDeclarations]: Found implementation of procedure printk_buf [2022-11-03 03:35:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure ipw_ethtool_get_drvinfo [2022-11-03 03:35:29,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw_ethtool_get_drvinfo [2022-11-03 03:35:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-03 03:35:29,088 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-03 03:35:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_tx_power [2022-11-03 03:35:29,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_tx_power [2022-11-03 03:35:29,088 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 03:35:29,089 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 03:35:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-11-03 03:35:29,089 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-11-03 03:35:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 03:35:29,089 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 03:35:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-03 03:35:29,089 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-03 03:35:29,089 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_system_config [2022-11-03 03:35:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_system_config [2022-11-03 03:35:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_kill_works [2022-11-03 03:35:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_kill_works [2022-11-03 03:35:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2022-11-03 03:35:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2022-11-03 03:35:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:35:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:35:29,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:35:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_queues_free [2022-11-03 03:35:29,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_queues_free [2022-11-03 03:35:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:35:29,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:35:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure rf_kill_active [2022-11-03 03:35:29,091 INFO L138 BoogieDeclarations]: Found implementation of procedure rf_kill_active [2022-11-03 03:35:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure get_seconds [2022-11-03 03:35:29,092 INFO L138 BoogieDeclarations]: Found implementation of procedure get_seconds [2022-11-03 03:35:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-03 03:35:29,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-03 03:35:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_allocate [2022-11-03 03:35:29,092 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_allocate [2022-11-03 03:35:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 03:35:29,092 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 03:35:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure libipw_priv [2022-11-03 03:35:29,093 INFO L138 BoogieDeclarations]: Found implementation of procedure libipw_priv [2022-11-03 03:35:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 03:35:29,093 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 03:35:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 03:35:29,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 03:35:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_timeout [2022-11-03 03:35:29,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_timeout [2022-11-03 03:35:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 03:35:29,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 03:35:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 03:35:29,094 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 03:35:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-03 03:35:29,094 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-03 03:35:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 03:35:29,094 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 03:35:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-03 03:35:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-03 03:35:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_open [2022-11-03 03:35:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_open [2022-11-03 03:35:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 03:35:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 03:35:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_queues_initialize [2022-11-03 03:35:29,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_queues_initialize [2022-11-03 03:35:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-03 03:35:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure pm_qos_update_request [2022-11-03 03:35:29,096 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_qos_update_request [2022-11-03 03:35:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_associated [2022-11-03 03:35:29,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_associated [2022-11-03 03:35:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:35:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_scanning [2022-11-03 03:35:29,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_scanning [2022-11-03 03:35:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_dword [2022-11-03 03:35:29,097 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_dword [2022-11-03 03:35:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 03:35:29,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 03:35:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-03 03:35:29,097 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-03 03:35:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_initialize [2022-11-03 03:35:29,097 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_initialize [2022-11-03 03:35:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_start_scan [2022-11-03 03:35:29,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_start_scan [2022-11-03 03:35:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-03 03:35:29,098 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-03 03:35:30,468 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:35:30,472 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:35:42,602 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:38:02,364 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 03:38:02,520 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:38:07,736 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:38:07,736 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-03 03:38:07,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:38:07 BoogieIcfgContainer [2022-11-03 03:38:07,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:38:07,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:38:07,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:38:07,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:38:07,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:35:19" (1/3) ... [2022-11-03 03:38:07,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209d87a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:38:07, skipping insertion in model container [2022-11-03 03:38:07,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:35:27" (2/3) ... [2022-11-03 03:38:07,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209d87a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:38:07, skipping insertion in model container [2022-11-03 03:38:07,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:38:07" (3/3) ... [2022-11-03 03:38:07,761 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-03 03:38:07,780 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:38:07,780 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:38:07,885 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:38:07,892 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=FINITE_AUTOMATA, 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;@6861d066, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:38:07,892 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:38:07,904 INFO L276 IsEmpty]: Start isEmpty. Operand has 2798 states, 1759 states have (on average 1.3388288800454804) internal successors, (2355), 1774 states have internal predecessors, (2355), 874 states have call successors, (874), 165 states have call predecessors, (874), 164 states have return successors, (868), 866 states have call predecessors, (868), 868 states have call successors, (868) [2022-11-03 03:38:07,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-03 03:38:07,938 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:38:07,939 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 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] [2022-11-03 03:38:07,939 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:38:07,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:38:07,944 INFO L85 PathProgramCache]: Analyzing trace with hash -398366642, now seen corresponding path program 1 times [2022-11-03 03:38:07,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:38:07,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057154378] [2022-11-03 03:38:07,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:38:07,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:38:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:38:10,036 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2022-11-03 03:38:10,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:38:10,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057154378] [2022-11-03 03:38:10,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057154378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:38:10,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:38:10,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:38:10,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689255356] [2022-11-03 03:38:10,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:38:10,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:38:10,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:38:10,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:38:10,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:38:10,095 INFO L87 Difference]: Start difference. First operand has 2798 states, 1759 states have (on average 1.3388288800454804) internal successors, (2355), 1774 states have internal predecessors, (2355), 874 states have call successors, (874), 165 states have call predecessors, (874), 164 states have return successors, (868), 866 states have call predecessors, (868), 868 states have call successors, (868) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-03 03:38:14,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:38:16,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:38:18,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:38:20,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:38:24,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:38:27,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:38:32,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:38:36,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:38:38,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:38:41,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:38:43,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:38:45,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:38:48,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:38:48,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:38:48,549 INFO L93 Difference]: Finished difference Result 7876 states and 11538 transitions. [2022-11-03 03:38:48,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:38:48,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 184 [2022-11-03 03:38:48,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:38:48,618 INFO L225 Difference]: With dead ends: 7876 [2022-11-03 03:38:48,618 INFO L226 Difference]: Without dead ends: 5101 [2022-11-03 03:38:48,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:38:48,649 INFO L413 NwaCegarLoop]: 4297 mSDtfsCounter, 3382 mSDsluCounter, 4017 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 14 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3386 SdHoareTripleChecker+Valid, 7834 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.9s IncrementalHoareTripleChecker+Time [2022-11-03 03:38:48,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3386 Valid, 7834 Invalid, 1053 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 1028 Invalid, 11 Unknown, 0 Unchecked, 37.9s Time] [2022-11-03 03:38:48,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5101 states. [2022-11-03 03:38:49,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5101 to 5098. [2022-11-03 03:38:49,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5098 states, 3205 states have (on average 1.3316692667706709) internal successors, (4268), 3237 states have internal predecessors, (4268), 1581 states have call successors, (1581), 312 states have call predecessors, (1581), 311 states have return successors, (1582), 1572 states have call predecessors, (1582), 1578 states have call successors, (1582) [2022-11-03 03:38:49,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5098 states to 5098 states and 7431 transitions. [2022-11-03 03:38:49,092 INFO L78 Accepts]: Start accepts. Automaton has 5098 states and 7431 transitions. Word has length 184 [2022-11-03 03:38:49,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:38:49,097 INFO L495 AbstractCegarLoop]: Abstraction has 5098 states and 7431 transitions. [2022-11-03 03:38:49,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-03 03:38:49,097 INFO L276 IsEmpty]: Start isEmpty. Operand 5098 states and 7431 transitions. [2022-11-03 03:38:49,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-11-03 03:38:49,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:38:49,116 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 5, 5, 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] [2022-11-03 03:38:49,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:38:49,116 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:38:49,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:38:49,117 INFO L85 PathProgramCache]: Analyzing trace with hash 246856729, now seen corresponding path program 1 times [2022-11-03 03:38:49,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:38:49,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492758990] [2022-11-03 03:38:49,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:38:49,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:38:49,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:38:51,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1134 trivial. 0 not checked. [2022-11-03 03:38:51,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:38:51,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492758990] [2022-11-03 03:38:51,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492758990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:38:51,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:38:51,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:38:51,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807484376] [2022-11-03 03:38:51,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:38:51,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:38:51,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:38:51,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:38:51,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:38:51,887 INFO L87 Difference]: Start difference. First operand 5098 states and 7431 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-03 03:38:56,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:38:59,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:39:01,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:39:05,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:39:08,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:39:10,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:39:13,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:39:18,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:39:23,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:39:25,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:39:28,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:39:30,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:39:33,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:39:35,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:39:36,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:39:36,059 INFO L93 Difference]: Finished difference Result 7457 states and 10846 transitions. [2022-11-03 03:39:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:39:36,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 231 [2022-11-03 03:39:36,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:39:36,125 INFO L225 Difference]: With dead ends: 7457 [2022-11-03 03:39:36,125 INFO L226 Difference]: Without dead ends: 7441 [2022-11-03 03:39:36,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:39:36,134 INFO L413 NwaCegarLoop]: 4321 mSDtfsCounter, 3362 mSDsluCounter, 8838 mSDsCounter, 0 mSdLazyCounter, 1510 mSolverCounterSat, 0 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3367 SdHoareTripleChecker+Valid, 12158 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1510 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:39:36,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3367 Valid, 12158 Invalid, 1522 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1510 Invalid, 12 Unknown, 0 Unchecked, 43.7s Time] [2022-11-03 03:39:36,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7441 states. [2022-11-03 03:39:36,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7441 to 7440. [2022-11-03 03:39:36,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7440 states, 4672 states have (on average 1.3304794520547945) internal successors, (6216), 4718 states have internal predecessors, (6216), 2301 states have call successors, (2301), 468 states have call predecessors, (2301), 466 states have return successors, (2305), 2289 states have call predecessors, (2305), 2298 states have call successors, (2305) [2022-11-03 03:39:36,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7440 states to 7440 states and 10822 transitions. [2022-11-03 03:39:36,756 INFO L78 Accepts]: Start accepts. Automaton has 7440 states and 10822 transitions. Word has length 231 [2022-11-03 03:39:36,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:39:36,757 INFO L495 AbstractCegarLoop]: Abstraction has 7440 states and 10822 transitions. [2022-11-03 03:39:36,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-03 03:39:36,759 INFO L276 IsEmpty]: Start isEmpty. Operand 7440 states and 10822 transitions. [2022-11-03 03:39:36,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-11-03 03:39:36,771 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:39:36,771 INFO L195 NwaCegarLoop]: trace histogram [18, 16, 16, 16, 16, 16, 16, 4, 4, 4, 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] [2022-11-03 03:39:36,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:39:36,772 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:39:36,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:39:36,774 INFO L85 PathProgramCache]: Analyzing trace with hash 47393670, now seen corresponding path program 1 times [2022-11-03 03:39:36,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:39:36,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55718854] [2022-11-03 03:39:36,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:39:36,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:39:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:39:38,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2022-11-03 03:39:38,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:39:38,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55718854] [2022-11-03 03:39:38,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55718854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:39:38,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:39:38,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:39:38,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909374129] [2022-11-03 03:39:38,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:39:38,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:39:38,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:39:38,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:39:38,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:39:38,125 INFO L87 Difference]: Start difference. First operand 7440 states and 10822 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-03 03:39:43,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:39:46,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:39:50,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:39:53,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:39:56,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:39:59,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:40:03,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:40:05,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:40:08,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:40:10,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:40:12,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:40:15,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:40:15,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:40:15,722 INFO L93 Difference]: Finished difference Result 19475 states and 28307 transitions. [2022-11-03 03:40:15,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:40:15,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 246 [2022-11-03 03:40:15,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:40:15,815 INFO L225 Difference]: With dead ends: 19475 [2022-11-03 03:40:15,816 INFO L226 Difference]: Without dead ends: 12068 [2022-11-03 03:40:15,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:40:15,860 INFO L413 NwaCegarLoop]: 4320 mSDtfsCounter, 3387 mSDsluCounter, 4048 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 5 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3390 SdHoareTripleChecker+Valid, 7880 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:40:15,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3390 Valid, 7880 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1005 Invalid, 10 Unknown, 0 Unchecked, 37.1s Time] [2022-11-03 03:40:15,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12068 states. [2022-11-03 03:40:16,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12068 to 12056. [2022-11-03 03:40:16,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12056 states, 7554 states have (on average 1.3281705056923485) internal successors, (10033), 7636 states have internal predecessors, (10033), 3734 states have call successors, (3734), 770 states have call predecessors, (3734), 767 states have return successors, (3744), 3709 states have call predecessors, (3744), 3731 states have call successors, (3744) [2022-11-03 03:40:16,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12056 states to 12056 states and 17511 transitions. [2022-11-03 03:40:16,568 INFO L78 Accepts]: Start accepts. Automaton has 12056 states and 17511 transitions. Word has length 246 [2022-11-03 03:40:16,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:40:16,570 INFO L495 AbstractCegarLoop]: Abstraction has 12056 states and 17511 transitions. [2022-11-03 03:40:16,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-03 03:40:16,570 INFO L276 IsEmpty]: Start isEmpty. Operand 12056 states and 17511 transitions. [2022-11-03 03:40:16,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-11-03 03:40:16,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:40:16,600 INFO L195 NwaCegarLoop]: trace histogram [22, 16, 16, 16, 16, 16, 16, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-11-03 03:40:16,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:40:16,600 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:40:16,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:40:16,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1388606139, now seen corresponding path program 1 times [2022-11-03 03:40:16,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:40:16,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893985109] [2022-11-03 03:40:16,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:40:16,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:40:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:40:18,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1264 trivial. 0 not checked. [2022-11-03 03:40:18,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:40:18,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893985109] [2022-11-03 03:40:18,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893985109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:40:18,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:40:18,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:40:18,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136909692] [2022-11-03 03:40:18,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:40:18,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:40:18,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:40:18,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:40:18,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:40:18,017 INFO L87 Difference]: Start difference. First operand 12056 states and 17511 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-03 03:40:22,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:40:25,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:40:26,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:40:30,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:40:33,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:40:35,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:40:38,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:40:42,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:40:47,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:40:50,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:40:52,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:40:54,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:40:57,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:40:59,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:00,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:00,111 INFO L93 Difference]: Finished difference Result 26382 states and 38327 transitions. [2022-11-03 03:41:00,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:41:00,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 316 [2022-11-03 03:41:00,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:00,207 INFO L225 Difference]: With dead ends: 26382 [2022-11-03 03:41:00,208 INFO L226 Difference]: Without dead ends: 16661 [2022-11-03 03:41:00,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:41:00,257 INFO L413 NwaCegarLoop]: 6461 mSDtfsCounter, 3318 mSDsluCounter, 4045 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 4 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3323 SdHoareTripleChecker+Valid, 10019 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:00,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3323 Valid, 10019 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1437 Invalid, 10 Unknown, 0 Unchecked, 41.5s Time] [2022-11-03 03:41:00,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16661 states. [2022-11-03 03:41:01,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16661 to 16649. [2022-11-03 03:41:01,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16649 states, 10424 states have (on average 1.327897160399079) internal successors, (13842), 10541 states have internal predecessors, (13842), 5158 states have call successors, (5158), 1071 states have call predecessors, (5158), 1066 states have return successors, (5174), 5120 states have call predecessors, (5174), 5155 states have call successors, (5174) [2022-11-03 03:41:01,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16649 states to 16649 states and 24174 transitions. [2022-11-03 03:41:01,127 INFO L78 Accepts]: Start accepts. Automaton has 16649 states and 24174 transitions. Word has length 316 [2022-11-03 03:41:01,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:01,129 INFO L495 AbstractCegarLoop]: Abstraction has 16649 states and 24174 transitions. [2022-11-03 03:41:01,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-03 03:41:01,129 INFO L276 IsEmpty]: Start isEmpty. Operand 16649 states and 24174 transitions. [2022-11-03 03:41:01,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-11-03 03:41:01,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:01,175 INFO L195 NwaCegarLoop]: trace histogram [24, 16, 16, 16, 16, 16, 16, 6, 6, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:41:01,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:41:01,176 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:01,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:01,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1786317926, now seen corresponding path program 1 times [2022-11-03 03:41:01,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:41:01,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819477681] [2022-11-03 03:41:01,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:01,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:41:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:02,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1400 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1377 trivial. 0 not checked. [2022-11-03 03:41:02,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:41:02,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819477681] [2022-11-03 03:41:02,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819477681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:02,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:02,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:41:02,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851623146] [2022-11-03 03:41:02,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:02,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:41:02,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:41:02,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:41:02,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:41:02,652 INFO L87 Difference]: Start difference. First operand 16649 states and 24174 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-03 03:41:07,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:41:09,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:41:14,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:17,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:19,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:41:22,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:24,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:26,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:30,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:34,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:38,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:40,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:42,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:45,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:47,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:48,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:48,270 INFO L93 Difference]: Finished difference Result 39937 states and 58015 transitions. [2022-11-03 03:41:48,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:41:48,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 340 [2022-11-03 03:41:48,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:48,433 INFO L225 Difference]: With dead ends: 39937 [2022-11-03 03:41:48,434 INFO L226 Difference]: Without dead ends: 25623 [2022-11-03 03:41:48,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:41:48,506 INFO L413 NwaCegarLoop]: 6415 mSDtfsCounter, 3293 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 9 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3298 SdHoareTripleChecker+Valid, 9953 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:48,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3298 Valid, 9953 Invalid, 1463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1441 Invalid, 13 Unknown, 0 Unchecked, 44.8s Time] [2022-11-03 03:41:48,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25623 states. [2022-11-03 03:41:49,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25623 to 25602. [2022-11-03 03:41:49,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25602 states, 16033 states have (on average 1.3280733487182685) internal successors, (21293), 16219 states have internal predecessors, (21293), 7918 states have call successors, (7918), 1658 states have call predecessors, (7918), 1650 states have return successors, (7954), 7856 states have call predecessors, (7954), 7915 states have call successors, (7954) [2022-11-03 03:41:49,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25602 states to 25602 states and 37165 transitions. [2022-11-03 03:41:49,973 INFO L78 Accepts]: Start accepts. Automaton has 25602 states and 37165 transitions. Word has length 340 [2022-11-03 03:41:49,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:49,975 INFO L495 AbstractCegarLoop]: Abstraction has 25602 states and 37165 transitions. [2022-11-03 03:41:49,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-03 03:41:49,975 INFO L276 IsEmpty]: Start isEmpty. Operand 25602 states and 37165 transitions. [2022-11-03 03:41:50,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-11-03 03:41:50,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:50,046 INFO L195 NwaCegarLoop]: trace histogram [25, 16, 16, 16, 16, 16, 16, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 03:41:50,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:41:50,047 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:50,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:50,047 INFO L85 PathProgramCache]: Analyzing trace with hash 448884762, now seen corresponding path program 1 times [2022-11-03 03:41:50,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:41:50,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650662509] [2022-11-03 03:41:50,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:50,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:41:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:51,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1503 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 1468 trivial. 0 not checked. [2022-11-03 03:41:51,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:41:51,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650662509] [2022-11-03 03:41:51,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650662509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:51,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:51,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:41:51,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480668700] [2022-11-03 03:41:51,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:51,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:41:51,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:41:51,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:41:51,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:41:51,522 INFO L87 Difference]: Start difference. First operand 25602 states and 37165 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 03:41:57,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:42:01,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:03,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:42:06,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:08,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:10,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:12,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:17,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:21,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:24,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:26,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:28,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:31,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:33,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:34,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:34,439 INFO L93 Difference]: Finished difference Result 62504 states and 90753 transitions. [2022-11-03 03:42:34,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:42:34,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 360 [2022-11-03 03:42:34,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:34,654 INFO L225 Difference]: With dead ends: 62504 [2022-11-03 03:42:34,654 INFO L226 Difference]: Without dead ends: 39237 [2022-11-03 03:42:34,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:42:34,754 INFO L413 NwaCegarLoop]: 6503 mSDtfsCounter, 3342 mSDsluCounter, 4023 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 8 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3345 SdHoareTripleChecker+Valid, 10041 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:34,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3345 Valid, 10041 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1466 Invalid, 10 Unknown, 0 Unchecked, 41.5s Time] [2022-11-03 03:42:34,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39237 states. [2022-11-03 03:42:36,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39237 to 39236. [2022-11-03 03:42:36,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39236 states, 24589 states have (on average 1.3272601569807638) internal successors, (32636), 24861 states have internal predecessors, (32636), 12116 states have call successors, (12116), 2542 states have call predecessors, (12116), 2530 states have return successors, (12170), 12036 states have call predecessors, (12170), 12113 states have call successors, (12170) [2022-11-03 03:42:37,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39236 states to 39236 states and 56922 transitions. [2022-11-03 03:42:37,056 INFO L78 Accepts]: Start accepts. Automaton has 39236 states and 56922 transitions. Word has length 360 [2022-11-03 03:42:37,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:37,058 INFO L495 AbstractCegarLoop]: Abstraction has 39236 states and 56922 transitions. [2022-11-03 03:42:37,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-03 03:42:37,058 INFO L276 IsEmpty]: Start isEmpty. Operand 39236 states and 56922 transitions. [2022-11-03 03:42:37,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2022-11-03 03:42:37,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:37,181 INFO L195 NwaCegarLoop]: trace histogram [21, 18, 18, 18, 18, 18, 18, 11, 6, 6, 6, 4, 4, 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] [2022-11-03 03:42:37,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:42:37,181 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:37,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:37,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1296478718, now seen corresponding path program 1 times [2022-11-03 03:42:37,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:42:37,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970813695] [2022-11-03 03:42:37,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:37,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:42:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:39,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2022-11-03 03:42:39,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:42:39,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970813695] [2022-11-03 03:42:39,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970813695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:39,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:39,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:42:39,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049890466] [2022-11-03 03:42:39,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:39,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:42:39,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:42:39,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:42:39,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:42:39,726 INFO L87 Difference]: Start difference. First operand 39236 states and 56922 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2022-11-03 03:42:45,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:42:47,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:42:50,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:53,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:55,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:57,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:58,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:03,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:07,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:10,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:12,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:15,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:17,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:20,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:21,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:43:21,173 INFO L93 Difference]: Finished difference Result 102287 states and 148446 transitions. [2022-11-03 03:43:21,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:43:21,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) Word has length 398 [2022-11-03 03:43:21,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:43:22,009 INFO L225 Difference]: With dead ends: 102287 [2022-11-03 03:43:22,010 INFO L226 Difference]: Without dead ends: 63084 [2022-11-03 03:43:22,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:43:22,420 INFO L413 NwaCegarLoop]: 4266 mSDtfsCounter, 2349 mSDsluCounter, 4010 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 16 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2350 SdHoareTripleChecker+Valid, 7796 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:43:22,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2350 Valid, 7796 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1079 Invalid, 10 Unknown, 0 Unchecked, 39.0s Time] [2022-11-03 03:43:22,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63084 states. [2022-11-03 03:43:26,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63084 to 63070. [2022-11-03 03:43:26,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63070 states, 40122 states have (on average 1.3315138826578934) internal successors, (53423), 40454 states have internal predecessors, (53423), 18903 states have call successors, (18903), 4070 states have call predecessors, (18903), 4044 states have return successors, (18979), 18788 states have call predecessors, (18979), 18900 states have call successors, (18979) [2022-11-03 03:43:26,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63070 states to 63070 states and 91305 transitions. [2022-11-03 03:43:26,667 INFO L78 Accepts]: Start accepts. Automaton has 63070 states and 91305 transitions. Word has length 398 [2022-11-03 03:43:26,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:43:26,668 INFO L495 AbstractCegarLoop]: Abstraction has 63070 states and 91305 transitions. [2022-11-03 03:43:26,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (66), 3 states have call predecessors, (66), 3 states have call successors, (66) [2022-11-03 03:43:26,669 INFO L276 IsEmpty]: Start isEmpty. Operand 63070 states and 91305 transitions. [2022-11-03 03:43:27,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2022-11-03 03:43:27,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:27,162 INFO L195 NwaCegarLoop]: trace histogram [26, 16, 16, 16, 16, 16, 16, 8, 8, 7, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2022-11-03 03:43:27,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 03:43:27,162 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:43:27,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:27,163 INFO L85 PathProgramCache]: Analyzing trace with hash -591168000, now seen corresponding path program 1 times [2022-11-03 03:43:27,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:43:27,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610800050] [2022-11-03 03:43:27,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:27,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:43:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:43:29,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1621 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 1574 trivial. 0 not checked. [2022-11-03 03:43:29,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:43:29,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610800050] [2022-11-03 03:43:29,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610800050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:43:29,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:43:29,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:43:29,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375903314] [2022-11-03 03:43:29,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:43:29,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:43:29,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:43:29,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:43:29,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:43:29,003 INFO L87 Difference]: Start difference. First operand 63070 states and 91305 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-03 03:43:36,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:43:40,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:43:43,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:45,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:48,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:50,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:51,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:54,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:59,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:04,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:06,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:09,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:12,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:14,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:17,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:18,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:44:18,128 INFO L93 Difference]: Finished difference Result 146854 states and 212692 transitions. [2022-11-03 03:44:18,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:44:18,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 379 [2022-11-03 03:44:18,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:44:18,673 INFO L225 Difference]: With dead ends: 146854 [2022-11-03 03:44:18,673 INFO L226 Difference]: Without dead ends: 85385 [2022-11-03 03:44:18,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:44:18,876 INFO L413 NwaCegarLoop]: 6452 mSDtfsCounter, 3295 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 7 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3299 SdHoareTripleChecker+Valid, 9990 SdHoareTripleChecker+Invalid, 1466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:44:18,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3299 Valid, 9990 Invalid, 1466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1447 Invalid, 12 Unknown, 0 Unchecked, 46.2s Time] [2022-11-03 03:44:18,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85385 states. [2022-11-03 03:44:22,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85385 to 85348. [2022-11-03 03:44:22,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85348 states, 54296 states have (on average 1.3317739796670105) internal successors, (72310), 54752 states have internal predecessors, (72310), 25577 states have call successors, (25577), 5508 states have call predecessors, (25577), 5474 states have return successors, (25689), 25420 states have call predecessors, (25689), 25574 states have call successors, (25689) [2022-11-03 03:44:24,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85348 states to 85348 states and 123576 transitions. [2022-11-03 03:44:24,032 INFO L78 Accepts]: Start accepts. Automaton has 85348 states and 123576 transitions. Word has length 379 [2022-11-03 03:44:24,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:44:24,033 INFO L495 AbstractCegarLoop]: Abstraction has 85348 states and 123576 transitions. [2022-11-03 03:44:24,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-03 03:44:24,034 INFO L276 IsEmpty]: Start isEmpty. Operand 85348 states and 123576 transitions. [2022-11-03 03:44:24,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2022-11-03 03:44:24,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:44:24,535 INFO L195 NwaCegarLoop]: trace histogram [27, 16, 16, 16, 16, 16, 16, 9, 9, 8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 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] [2022-11-03 03:44:24,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 03:44:24,535 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:44:24,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:44:24,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1593865285, now seen corresponding path program 1 times [2022-11-03 03:44:24,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:44:24,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275701493] [2022-11-03 03:44:24,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:44:24,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:44:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:44:26,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1747 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2022-11-03 03:44:26,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:44:26,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275701493] [2022-11-03 03:44:26,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275701493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:44:26,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:44:26,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:44:26,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120621556] [2022-11-03 03:44:26,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:44:26,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:44:26,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:44:26,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:44:26,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:44:26,141 INFO L87 Difference]: Start difference. First operand 85348 states and 123576 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-03 03:44:32,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:44:33,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:44:36,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:44:37,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:44:39,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:44:43,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:45,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:48,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:53,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:44:58,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:01,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:03,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:06,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:09,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:11,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:12,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:12,632 INFO L93 Difference]: Finished difference Result 180968 states and 261921 transitions. [2022-11-03 03:45:12,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:45:12,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 396 [2022-11-03 03:45:12,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:13,135 INFO L225 Difference]: With dead ends: 180968 [2022-11-03 03:45:13,136 INFO L226 Difference]: Without dead ends: 97221 [2022-11-03 03:45:13,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:13,421 INFO L413 NwaCegarLoop]: 6446 mSDtfsCounter, 3272 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 6 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3277 SdHoareTripleChecker+Valid, 9984 SdHoareTripleChecker+Invalid, 1469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:13,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3277 Valid, 9984 Invalid, 1469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1453 Invalid, 10 Unknown, 0 Unchecked, 42.3s Time] [2022-11-03 03:45:13,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97221 states. [2022-11-03 03:45:17,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97221 to 97202. [2022-11-03 03:45:17,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97202 states, 61853 states have (on average 1.3307357767610302) internal successors, (82310), 62354 states have internal predecessors, (82310), 29068 states have call successors, (29068), 6313 states have call predecessors, (29068), 6280 states have return successors, (29186), 28912 states have call predecessors, (29186), 29065 states have call successors, (29186) [2022-11-03 03:45:18,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97202 states to 97202 states and 140564 transitions. [2022-11-03 03:45:18,500 INFO L78 Accepts]: Start accepts. Automaton has 97202 states and 140564 transitions. Word has length 396 [2022-11-03 03:45:18,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:18,501 INFO L495 AbstractCegarLoop]: Abstraction has 97202 states and 140564 transitions. [2022-11-03 03:45:18,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-03 03:45:18,502 INFO L276 IsEmpty]: Start isEmpty. Operand 97202 states and 140564 transitions. [2022-11-03 03:45:18,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2022-11-03 03:45:18,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:18,679 INFO L195 NwaCegarLoop]: trace histogram [28, 16, 16, 16, 16, 16, 16, 10, 10, 9, 9, 9, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 3, 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] [2022-11-03 03:45:18,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 03:45:18,680 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:18,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:18,680 INFO L85 PathProgramCache]: Analyzing trace with hash 559710165, now seen corresponding path program 1 times [2022-11-03 03:45:18,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:18,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614571612] [2022-11-03 03:45:18,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:18,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:20,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1888 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 1853 trivial. 0 not checked. [2022-11-03 03:45:20,298 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:20,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614571612] [2022-11-03 03:45:20,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614571612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:20,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:20,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:45:20,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937517076] [2022-11-03 03:45:20,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:20,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:45:20,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:20,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:45:20,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:20,301 INFO L87 Difference]: Start difference. First operand 97202 states and 140564 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-03 03:45:30,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:45:31,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:45:34,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:36,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:38,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:41,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:43,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:45,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:50,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:55,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:45:58,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:00,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:04,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:07,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:09,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:10,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:10,365 INFO L93 Difference]: Finished difference Result 200378 states and 289790 transitions. [2022-11-03 03:46:10,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:46:10,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 413 [2022-11-03 03:46:10,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:11,115 INFO L225 Difference]: With dead ends: 200378 [2022-11-03 03:46:11,115 INFO L226 Difference]: Without dead ends: 104795 [2022-11-03 03:46:11,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:46:11,398 INFO L413 NwaCegarLoop]: 6440 mSDtfsCounter, 3307 mSDsluCounter, 4024 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 5 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3310 SdHoareTripleChecker+Valid, 9978 SdHoareTripleChecker+Invalid, 1469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:11,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3310 Valid, 9978 Invalid, 1469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1453 Invalid, 11 Unknown, 0 Unchecked, 46.1s Time] [2022-11-03 03:46:11,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104795 states. [2022-11-03 03:46:15,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104795 to 104794. [2022-11-03 03:46:15,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104794 states, 66681 states have (on average 1.3305139395030068) internal successors, (88720), 67216 states have internal predecessors, (88720), 31340 states have call successors, (31340), 6807 states have call predecessors, (31340), 6772 states have return successors, (31466), 31178 states have call predecessors, (31466), 31337 states have call successors, (31466) [2022-11-03 03:46:15,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104794 states to 104794 states and 151526 transitions. [2022-11-03 03:46:15,901 INFO L78 Accepts]: Start accepts. Automaton has 104794 states and 151526 transitions. Word has length 413 [2022-11-03 03:46:15,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:15,902 INFO L495 AbstractCegarLoop]: Abstraction has 104794 states and 151526 transitions. [2022-11-03 03:46:15,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-03 03:46:15,903 INFO L276 IsEmpty]: Start isEmpty. Operand 104794 states and 151526 transitions. [2022-11-03 03:46:16,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2022-11-03 03:46:16,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:16,106 INFO L195 NwaCegarLoop]: trace histogram [24, 18, 18, 18, 18, 18, 18, 11, 8, 8, 6, 6, 6, 3, 3, 3, 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] [2022-11-03 03:46:16,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 03:46:16,107 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:16,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:16,108 INFO L85 PathProgramCache]: Analyzing trace with hash 355080365, now seen corresponding path program 1 times [2022-11-03 03:46:16,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:16,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239414313] [2022-11-03 03:46:16,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:16,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:19,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1773 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1762 trivial. 0 not checked. [2022-11-03 03:46:19,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:19,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239414313] [2022-11-03 03:46:19,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239414313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:19,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:46:19,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:46:19,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510457542] [2022-11-03 03:46:19,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:19,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:46:19,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:19,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:46:19,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:46:19,106 INFO L87 Difference]: Start difference. First operand 104794 states and 151526 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2022-11-03 03:46:24,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:46:27,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:46:31,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:33,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:37,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:39,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:44,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:49,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:52,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:54,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:57,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:46:59,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:02,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:04,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:47:04,490 INFO L93 Difference]: Finished difference Result 247775 states and 358665 transitions. [2022-11-03 03:47:04,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:47:04,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) Word has length 452 [2022-11-03 03:47:04,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:47:05,483 INFO L225 Difference]: With dead ends: 247775 [2022-11-03 03:47:05,484 INFO L226 Difference]: Without dead ends: 144600 [2022-11-03 03:47:05,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:47:05,806 INFO L413 NwaCegarLoop]: 5434 mSDtfsCounter, 2213 mSDsluCounter, 4008 mSDsCounter, 0 mSdLazyCounter, 1322 mSolverCounterSat, 15 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2216 SdHoareTripleChecker+Valid, 8962 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1322 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:47:05,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2216 Valid, 8962 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1322 Invalid, 11 Unknown, 0 Unchecked, 40.1s Time] [2022-11-03 03:47:05,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144600 states. [2022-11-03 03:47:11,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144600 to 144530. [2022-11-03 03:47:11,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144530 states, 92548 states have (on average 1.333567446082033) internal successors, (123419), 93212 states have internal predecessors, (123419), 42691 states have call successors, (42691), 9354 states have call predecessors, (42691), 9290 states have return successors, (42872), 42452 states have call predecessors, (42872), 42688 states have call successors, (42872) [2022-11-03 03:47:12,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144530 states to 144530 states and 208982 transitions. [2022-11-03 03:47:12,508 INFO L78 Accepts]: Start accepts. Automaton has 144530 states and 208982 transitions. Word has length 452 [2022-11-03 03:47:12,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:47:12,511 INFO L495 AbstractCegarLoop]: Abstraction has 144530 states and 208982 transitions. [2022-11-03 03:47:12,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2022-11-03 03:47:12,512 INFO L276 IsEmpty]: Start isEmpty. Operand 144530 states and 208982 transitions. [2022-11-03 03:47:13,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-11-03 03:47:13,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:47:13,207 INFO L195 NwaCegarLoop]: trace histogram [29, 16, 16, 16, 16, 16, 16, 11, 11, 10, 10, 10, 8, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 3, 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] [2022-11-03 03:47:13,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 03:47:13,208 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:47:13,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:47:13,208 INFO L85 PathProgramCache]: Analyzing trace with hash 944588696, now seen corresponding path program 1 times [2022-11-03 03:47:13,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:47:13,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993434949] [2022-11-03 03:47:13,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:47:13,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:47:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:47:14,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2038 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 1998 trivial. 0 not checked. [2022-11-03 03:47:14,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:47:14,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993434949] [2022-11-03 03:47:14,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993434949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:47:14,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:47:14,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:47:14,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694693240] [2022-11-03 03:47:14,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:47:14,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:47:14,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:47:14,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:47:14,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:47:14,799 INFO L87 Difference]: Start difference. First operand 144530 states and 208982 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-03 03:47:22,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:47:27,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:30,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:33,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:35,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:41,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:46,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:49,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:52,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:54,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:57,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:59,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:01,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:01,117 INFO L93 Difference]: Finished difference Result 303045 states and 438266 transitions. [2022-11-03 03:48:01,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:48:01,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 429 [2022-11-03 03:48:01,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:01,894 INFO L225 Difference]: With dead ends: 303045 [2022-11-03 03:48:01,894 INFO L226 Difference]: Without dead ends: 160134 [2022-11-03 03:48:02,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:48:02,592 INFO L413 NwaCegarLoop]: 6429 mSDtfsCounter, 3306 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 4 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3310 SdHoareTripleChecker+Valid, 9967 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:02,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3310 Valid, 9967 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1441 Invalid, 11 Unknown, 0 Unchecked, 40.1s Time] [2022-11-03 03:48:02,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160134 states. [2022-11-03 03:48:08,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160134 to 160115. [2022-11-03 03:48:08,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160115 states, 102518 states have (on average 1.3337267601787004) internal successors, (136731), 103258 states have internal predecessors, (136731), 47308 states have call successors, (47308), 10357 states have call predecessors, (47308), 10288 states have return successors, (47513), 47042 states have call predecessors, (47513), 47305 states have call successors, (47513) [2022-11-03 03:48:09,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160115 states to 160115 states and 231552 transitions. [2022-11-03 03:48:09,767 INFO L78 Accepts]: Start accepts. Automaton has 160115 states and 231552 transitions. Word has length 429 [2022-11-03 03:48:09,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:09,769 INFO L495 AbstractCegarLoop]: Abstraction has 160115 states and 231552 transitions. [2022-11-03 03:48:09,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-03 03:48:09,769 INFO L276 IsEmpty]: Start isEmpty. Operand 160115 states and 231552 transitions. [2022-11-03 03:48:10,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2022-11-03 03:48:10,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:10,123 INFO L195 NwaCegarLoop]: trace histogram [30, 16, 16, 16, 16, 16, 16, 12, 12, 11, 11, 11, 9, 9, 8, 8, 8, 7, 6, 5, 4, 4, 4, 4, 3, 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] [2022-11-03 03:48:10,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 03:48:10,124 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:10,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:10,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1832126534, now seen corresponding path program 1 times [2022-11-03 03:48:10,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:10,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261208590] [2022-11-03 03:48:10,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:10,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:12,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2203 backedges. 107 proven. 136 refuted. 0 times theorem prover too weak. 1960 trivial. 0 not checked. [2022-11-03 03:48:12,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:12,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261208590] [2022-11-03 03:48:12,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261208590] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:48:12,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028817210] [2022-11-03 03:48:12,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:12,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:48:12,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e629dd-b2c9-46c7-a632-fb5356538ecf/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:48:12,538 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e629dd-b2c9-46c7-a632-fb5356538ecf/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:48:12,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83e629dd-b2c9-46c7-a632-fb5356538ecf/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:48:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:16,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 14590 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 03:48:16,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:48:16,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2203 backedges. 171 proven. 0 refuted. 0 times theorem prover too weak. 2032 trivial. 0 not checked. [2022-11-03 03:48:16,768 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:48:16,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028817210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:16,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:48:16,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-03 03:48:16,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214120392] [2022-11-03 03:48:16,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:16,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:48:16,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:16,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:48:16,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:48:16,772 INFO L87 Difference]: Start difference. First operand 160115 states and 231552 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-03 03:48:23,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []